Installation and maintenance manual

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Installation and maintenance manual Hot water heat pump

Installation and maintenance manual Hot water heat pump

EKHHP300AA2V3 EKHHP500AA2V3

English

15 17

Name (EKHHP)

Flow

Return

Connection refrigerant gas line

4

5

6

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Filling and draining connection or return

10

47

57 58 59

Sensor pocket for tank temperature sensor tDHW

Pressure-free storage tank water

Safety overflow connection

Mount for handle

Cover

Type plate

Control Hot water heat pump

Outer thread

Internal thread

Components

Safety devices

Observe tightening torque!

19

20

23

24

25

26

27

AG

IG

tDHW

Tab. 0-1 Legend for overview image on page 2

46

Integrated electrical Booster Heater (BOH)

18

56

Key error code / parameter setting Brief push: Display last error code Push for 5 sec: Enter parameter settings

Keys Time setting

Key "Low Noise" operating mode

Key activation/deactivation of timer programme

Key "High Output" operating mode

Key programming

54

Keys setting hot water temperature

Display Parameter code or Fault code

Display service technician required

Display parameter setting mode active

Display "Function not available"

Display of hot water temperature or other temperature values (in combination with items 44 / 46)

Display external temperature active

Display operating mode "Automatic" active

Display external temperature or temperature in hot water storage tank

Display operating mode "Start-up", "Defrost Mode" active

Display external signal (HT/LT/Smard Grid)

Display Booster Heater (BOH) switched on

Display off status in timer programme

Display active switching times

Display switching timer programme switched on

Display refrigerant compressor active

Display weekday

Display time

Display of sensor number (see tab. 5-1)

Display operating mode "Hot Water Heating" active

Key "Automatic" operating mode

55

Name (Controller)

Display operating mode "Low Noise Mode" active

Operating Display LED

Key "On / Off"

53

52

51

50

49

48

45

44

Connection for integrated Booster Heater (R 1½" IG)

Fill level indicator (tank water)

17

43

42

41

40

39

38

37

36

35

34

33

32

31

30

Item

15

Heat exchanger (stainless steel) for storage tank charging by Hot water heat pump (liquifier)

Heat exchanger (stainless steel) for storage tank charging by pressurised solar or alternative heat generator (only EKHHP500AA2V3)

13

12

14

Mount for solar controller or handle

Heat exchanger (stainless steel) for domestic hot water heating

11

Solar or return for additional heat source

Storage tank (polypropylene double walled jacket with PUR hard foam heat insulation)

9

Cu Ø 1/4" (6.4 mm)

Connection refrigerant liquid line

Recommended accessory:non-return valves (2 pcs.)

7

7a

Cu Ø 3/8" (9.5 mm)

Solar for additional heat source (3/4" IG + 1" AG) (only EKHHP500AA2V3)

Solar or for additional heat source (3/4" IG + 1" AG) (only EKHHP500AA2V3)

Cold water connection (1" AG)

Hot water (1" AG)*

3

Solar or flow for additional heat source (1" IG)

2

Flow

1

Item

Legend for overview image on page 2

Installation and maintenance manual

3

List of contents 1

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 1.2

1.2.1 1.2.2 1.2.3

1.3 1.4 1.5

Meaning of the warnings . . . . . . . . . . . . . . . . . . . . .5 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Handling instructions. . . . . . . . . . . . . . . . . . . . . . . .5

Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Instructions for operating safety . . . . . . . . . . . . . 6

1.5.1 1.5.2 1.5.3 1.5.4 1.5.5 1.5.6 1.5.7 1.5.8

2

Before working on the hydraulic system . . . . . . . . .6 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . .6 Working on cooling systems (heat pump) . . . . . . . .7 Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . .7 Sanitary connection. . . . . . . . . . . . . . . . . . . . . . . . .7 Requirements for the buffer tank water. . . . . . . . . .7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Instructing the user/owner. . . . . . . . . . . . . . . . . . . .8

Set-up and installation . . . . . . . . . . . . . . . . 9

2.1 2.2 2.3 2.4

2.8.2 2.8.3 2.8.4

6.1 6.2

7

Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Service and maintenance . . . . . . . . . . . . . .32

7.1 7.2

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . 32

7.2.1 7.2.2

8

Filling, topping up storage tank - without installed solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Filling, topping up storage tank - with optional KFE filling connection or with installed DrainBack solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Technical data . . . . . . . . . . . . . . . . . . . . . . .34

Optional: External heat generator installation . . . .12

EKHHP on heat pump external unit, mains connection Booster Heater (BOH) . . . . . . . . . . . .14 Low tariff mains connection (HT/NT). . . . . . . . . . .14 Connection intelligent controller (Smart Grid - SG) 14 Optional: External heat generator installation . . . .14

Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1

Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1.1 3.1.2

4

Requirements:. . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Start the system . . . . . . . . . . . . . . . . . . . . . . . . . .16

Decommissioning . . . . . . . . . . . . . . . . . . . 17

4.1

Temporary shutdown . . . . . . . . . . . . . . . . . . . . 17

4.1.1 4.1.2

4.2

5

Draining the storage tank . . . . . . . . . . . . . . . . . . .17 Draining the hot water circuit. . . . . . . . . . . . . . . . .18

Final shutdown . . . . . . . . . . . . . . . . . . . . . . . . . 18

Operation, Parameters . . . . . . . . . . . . . . . 19

5.1 5.2

Displays and function of operating elements . . 19 Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.1 5.2.2 5.2.3 5.2.4

5.3

5.4

ECO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Low Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 High Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Setting the timer programme . . . . . . . . . . . . . . 21

5.4.1 5.4.2 5.4.3

5.5

Switching the system on and off . . . . . . . . . . . . . .20 Setting the clock . . . . . . . . . . . . . . . . . . . . . . . . . .20 Display of the current Temperature. . . . . . . . . . . .20 Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Operating modes . . . . . . . . . . . . . . . . . . . . . . . 21

5.3.1 5.3.2 5.3.3 5.3.4

Display switching times . . . . . . . . . . . . . . . . . . . . .22 Programming switching times . . . . . . . . . . . . . . . .22 Delete switching time . . . . . . . . . . . . . . . . . . . . . .22

Parameter settings . . . . . . . . . . . . . . . . . . . . . . 23

5.5.1 5.5.2

Setting parameters . . . . . . . . . . . . . . . . . . . . . . . .23 Parameter description . . . . . . . . . . . . . . . . . . . . . .24

Installation and maintenance manual

4

Malfunctions and fault codes . . . . . . . . . . .29

Laying coolant lines . . . . . . . . . . . . . . . . . . . . . 12 Pressure test and filling the coolant circuit. . . . 13 Filling the system with water . . . . . . . . . . . . . . 13 Electrical connection . . . . . . . . . . . . . . . . . . . . 13

2.8.1

3

6

Factory settings of parameters . . . . . . . . . . . . . . 27 Individual parameter settings . . . . . . . . . . . . . . . 28 Individual switching time settings . . . . . . . . . . . . 28

Tightening torque . . . . . . . . . . . . . . . . . . . . . . . 9 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . 9 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Hydraulic connection . . . . . . . . . . . . . . . . . . . . 10

2.4.1

2.5 2.6 2.7 2.8

5.5.3 5.5.4 5.5.5

Observing instructions . . . . . . . . . . . . . . . . . . . . 5 Warning signs and explanation of symbols . . . . 5

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

1 x Safety 1

Safety

1.1 Observing instructions These instructions are a >> translation of the original version << in your language. This manual describes all the necessary activities for installation, start-up and maintenance, as well as for operation and settings. All parameters needed for trouble-free operation have been configured at the factory. Please go through the attached documents for a detailed description of operation and control. ● Please read this manual carefully and thoroughly before proceeding with the installation or modification of the heating system, operation of the heating system and making settings. ● Make a note of the preset values before you make any changes to the unit configuration. ● Comply strictly with warning instructions. Relevant documents – External unit for DAIKIN EKHHP; the associated installation and operating instructions. – When connecting to a DAIKIN solar system; the associated installation and operating instructions. The guides are included in the scope of supply for the individual units. 1.2 Warning signs and explanation of symbols 1.2.1 Meaning of the warnings Warnings in this manual are classified according into their severity and probability of occurrence.

CAUTION! Indicates a situation which may cause possible damage. Disregarding this warning can lead to damage to property and the environment. This symbol identifies user tips and particularly useful information, but not warnings or hazards. Special warning signs Some types of danger are represented by special symbols: Electric power Risk of burning or scalding Risk of environmental damage 1.2.2 Validity Some information in this manual has limited validity. The validity is highlighted by a symbol. External unit for heat pump Heat pump indoor unit Pay attention to the stipulated tightening torque (see section 2.1). Only applicable for the unpressurised solar system (drain-back). Only applicable for the pressurised solar system.

DANGER! Draws attention to imminent danger.

1.2.3 Handling instructions

Disregarding this warning can lead to serious injury or death. WARNING!

● Instructions on actions are shown as a list. Actions of which the sequential order must be maintained are numbered. Results of actions are identified with an  arrow.

Indicates a potentially dangerous situation.

1.3 Avoid danger

Disregarding this warning may result in serious physical injury or death.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

The DAIKIN EKHHP is state-of-the-art and is built to meet all recognised technical requirements. However, improper use can lead to serious injuries or death, as well as causing material damage. Installation and maintenance manual

5

1 x Safety To prevent such risks, install and operate DAIKIN EKHHP only: – as stipulated and in perfect condition, – with an awareness of the safety and hazards involved. This assumes knowledge and use of the contents of this manual, the relevant accident prevention regulations and the recognised safety-related and occupational medical rules. WARNING! This equipment must only be used by children aged 8 and above and by persons with restricted physical, sensory or mental capabilities or with a lack of experience and knowledge, if they are under supervision or if they have been instructed in the safe use of the equipment and understand the dangers arising therefrom. Children must not play with the equipment. Cleaning and user maintenance must not be carried out by children without supervision. 1.4 Intended use The DAIKIN EKHHP system may only be used for the generation of hot water and only set up, connected and operated in accordance with the specifications in this manual. Only use of a suitable external unit approved by DAIKIN is permitted. The following combinations are permissible in this respect: External unit ERWQ02AAV3

Internal unit EKHHP300AA2V3 EKHHP500AA2V3

Tab. 1-1 Permissible combinations of DAIKIN EKHHP internal units and DAIKIN heat pump external units Any other use outside the intended use is considered as improper. The operator alone shall bear responsibility for any resulting damage. Intended use also includes compliance with the maintenance and service conditions. Spare parts must at least satisfy the technical requirements defined by the manufacturer. This is the case, for example, with original spare parts.

Installation and maintenance manual

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1.5 Instructions for operating safety 1.5.1 Before working on the hydraulic system ● Work on the DAIKIN EKHHP (such as setup, servicing, connection and initial start-up) is only to be carried out by persons who are authorised and who have successfully completed qualifying technical or vocational training and who have taken part in advanced training sessions recognised by the appropriate responsible authorities for the specific activity. This, in particular, includes heating specialists and climate control technicians who have experience, as a result of their technical training and their knowledge of the subject, of proper and appropriate installation and maintenance of heating, climate control and cooling installations and heat pumps. When working on the DAIKIN EKHHP, switch the main switch off and secure against inadvertent switching on again. ● Seals must not be damaged or removed. ● The domestic water connection must comply with the requirements of EN 12897. ● Only original DAIKIN replacement parts may be used. 1.5.2 Electrical installation ● Electrical installation may be carried out only by electrical engineers and in compliance with the valid electro-technical guidelines as well as the regulations of the relevant energy supply company (EVU). ● Make up the power supply in accordance with IEC 60335-1, overvoltage category III. Means with contact separation in all poles that provide full disconnection must be incorporated in the fixed wiring in accordance with the wiring rules. ● Compare the mains voltage (~230 V, 50 Hz) indicated on the nameplate with the supply voltage before connecting to the mains. ● Before beginning work on live parts, disconnect all of the systems circuits from the power supply (switch off main switch, disconnect fuse) and secure against unintentional restart. ● Equipment covers and service panels must be replaced as soon as the work is completed.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

1 x Safety 1.5.3 Working on cooling systems (heat pump) The DAIKIN EKHHP requires fluorinated greenhouse gas for its function. For work on stationary refrigeration systems (heat pumps) and air conditioning systems, proof of expertise is required in the European Community according to the F-Gases Directive (EC) No. 303/2008. – up to 3 kg coolant fill quantity: Expert certificate category II – 3 kg coolant fill quantity or over: Expert certificate category I ● Always wear safety goggles and protective gloves. ● When working on the refrigerant circuit, ensure that the workplace is well ventilated. ● Never carry out work on the refrigerant circuit in closed rooms or work pits. ● Do not let coolant come into contact with open fire, embers or hot objects. ● Never allow coolant to escape into the atmosphere (high pressure at the point of the leak). ● When removing the service pipes from the filling connections, never hold the connections in the direction of your body. Residual refrigerant could escape. ● Components and spare parts must at least satisfy the technical requirements defined by the manufacturer. 1.5.4 Site of installation For safe and fault-free operation, it is necessary that the installation location of the DAIKIN EKHHP fulfils certain criteria. Related information can be found in chapter 2.3. Information on the installation site of other components can be found in the associated documentation supplied with them. 1.5.5 Sanitary connection ● You must comply with; – EN 1717 - Protection of domestic water from contamination in domestic water installations and general requirements concerning safety equipment for the prevention of domestic water contamination by back-flow – EN 806 - Technical regulations for domestic water installations (TRWI) – and, as a supplement, the country-specific legal requirements. DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

A safety valve must be fitted in the domestic water feed to the DAIKIN EKHHP. There should be no isolating fitting between the safety valve and the DAIKIN EKHHP. Any steam or heating water which may escape must be diverted by a suitable blow-off line with constant gradient in a frost-protected, safe and observable manner. The storage tank temperature can exceed 60°C if you connect a solar system. ● For this reason you should fit scalding protection (e.g. VTA32 + Screw connection set 1") during installation. The domestic water quality must comply with the EU Guideline 98/83 EC and the regionally-applicable regulations. 1.5.6 Requirements for the buffer tank water Observe the current technological regulations to prevent corrosion products and deposits. Minimum requirements regarding the quality of filling and supplementary water: – Water hardness (calcium and magnesium, calculated as calcium carbonate): ≤ 3 mmol/l – Conductivity: 1500 (ideal: < 100) μS/cm – Chloride: ≤ 250 mg/l – Sulphate: ≤ 250 mg/l – pH value: 6,5 - 8,5 Using filling water and top-up water which does not meet the stated quality requirements can cause a considerably reduced service life of the equipment. The responsibility for this lies solely with the operator. 1.5.7 Operation The DAIKIN EKHHP: ● Do not operate until all installation and connection work is completed. ● Only operate the ROTEX HybridCube with a completely full storage tank (level indicator). ● Only connect with a pressure reducer on the external water supply (supply line). ● Only operate the with the specified quantity of coolant and the type of coolant specified. ● Only operate if the protective cover is installed. The specified servicing intervals should be adhered to and inspection work must be carried out.

Installation and maintenance manual

7

1 x Safety 1.5.8 Instructing the user/owner ● Before you hand over the DAIKIN EKHHP, explain to the user/owner how to operate and check the system. ● Hand over the technical documentation (this document and all supporting documents) to the user and advise him that these documents must be made available at all times and be stored in the immediate vicinity of the unit.

Installation and maintenance manual

8

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

2 x Set-up and installation 2

Set-up and installation 2.2 Scope of delivery

WARNING! If you operate the DAIKIN EKHHP when the storage tank is not completely full, damage to the equipment may occur. ● Fill the DAIKIN EKHHP only after all the installation work has been completed. ● Observe the sequence during the filling process. ● Commissioning only after all the installation work has been completed and only after filling the storage tank completely.

– –

DAIKIN EKHHP Bag of accessories (see fig. 2-1)

C (1x)

A (2x)

D (1x)

2.1 Tightening torque

B (3x)

WARNING! Cooling systems (heat pumps), climate control systems and heating devices that have been set up and installed incorrectly can both endanger life and health of people and be impaired in their function. ● Work on the DAIKIN EKHHP (such as setup, servicing, connection and initial start-up) is only to be carried out by persons who are authorised and who have successfully completed qualifying technical or vocational training and who have taken part in advanced training sessions recognised by the relevant responsible authorities for the specific activity. These include in particular certified heating engineers, qualified electricians and HVAC specialists, who because of their professional training and expert knowledge, have experience in the professional installation and maintenance of heating, cooling and air conditioning systems and heat pumps. Component

Thread size

Tightening torque

Hydraulic line connections (water)

1"

25 to 30 Nm

Liquid line connections (Coolant)

1/4"

15 to 17 Nm

Gas line connections (Coolant)

3/8"

33 to 40 Nm

Booster heater

1.5"

max. 10 Nm (hand-tight)

Tab. 2-1 Tightening torque

A B

Handles (only required for transport) Cover screen

Fig. 2-1

C D

Hose connection piece for safety overflow Spanner

Content of bag of accessories

2.3 Set-up CAUTION! ● Only erect the DAIKIN EKHHP when a sufficient ground load-bearing capacity, of 1050 kg/m² plus safety margin, has been assured. The ground must be flat and level. ● Outdoor installation is not permitted. ● Erection in explosion-risk environments is not permitted. ● The DAIKIN EKHHP must only be set up in nonhermetically closed rooms. ● The electronic control system must not be subjected to atmospheric factors under any circumstances. ● The storage tank must not be exposed to continuous direct sunlight, as the UV radiation and the effects of the weather will damage the plastic. ● The DAIKIN EKHHP must be installed in a manner protected from frost. ● Make sure that the supply company does not provide corrosive domestic water. – Suitable water treatment may be required.

WARNING! The plastic wall of the storage tank of the DAIKIN EKHHP can melt under the effects of external heat 80°C) and, in the extreme case, can catch fire. ● Erect the DAIKIN EKHHP only at a minimum distance of 1 m to other heat sources (>80°C) (e.g. electric heater, gas heater, chimney) and flammable materials.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Installation and maintenance manual

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2 x Set-up and installation CAUTION! If the DAIKIN EKHHP is not erected adequately lower the flat solar panels (the top edge of the of the storage tank is higher than the bottom edge of the solar panels), the unpressurised solar system in the outdoor area will be unable to drain completely. ● Erect the DAIKIN EKHHP with a DrainBack solar connection at a sufficient depth to the flat solar panels (observe the minimum gradient in the solar connecting lines). ● Remove packing and dispose of it in an environment-friendly manner. ● Remove the cover plates on the storage tank (fig. 2-2, item B) and unscrew the threaded pieces (fig. 2-2, item F) from the apertures on which the handles are to be mounted. ● Screw handles (fig. 2-2, item A) into the threaded holes that are now free.

● Install the DAIKIN EKHHP at the installation site. – Recommended distances: To the wall (rear): ≥200 mm. To the ceiling: ≥200 mm. – Observe the tilt dimension (see section 8). – Carefully transport the, use the handles. – When setting up the unit in a cabinet, behind panels or in other restricted conditions, sufficient ventilation (e.g., using ventilation gratings) must be ensured. – To avoid a circulation line, install DAIKIN EKHHP close to the draw-off location.

2.4 Hydraulic connection CAUTION! If the DAIKIN EKHHP is connected to a cold water line, where steel pipes are used, chips can enter the special steel corrugated pipe heat exchanger and remain there. This can lead to contact corrosion damage and subsequently to leakage. ● Flush the feed pipes before filling the heat exchanger. ● Install contamination filter in the cold water feed (see chapter 1.5.5).

ONLY DAIKIN EKHHP500AA2V3 CAUTION! If the heat exchanger for charging the pressurised solar system (see overview image on page 2, item 4+5) has an external heating unit (e.g. woodburning boiler) connected to it, an excessive flow temperature at these connections can damage or destroy the DAIKIN EKHHP. ● The feed flow temperature of the external heater should be limited to max. 95°C. Requirement: Optional accessories (e.g. Solar) mounted on the DAIKIN EKHHP according to the specifications in the instructions included with the delivery. ● Check the cold water connection pressure (maximum 6 bar). – At higher pressure in the drinking water line, a pressure reducer must be installed. ● Remove the cover on the DAIKIN EKHHP.

Fig. 2-3

A B

Handle Cover screen

Fig. 2-2

Threaded piece

● When using circulation brakes, fit them into the pipe connections on the DAIKIN EKHHP. ● Create hydraulic connections on the DAIKIN EKHHP (see fig. 2-5). – Take the position and dimensions of the connections from the overview image on page 2 and tab. 0-1 on page 3.

Attach handles

Installation and maintenance manual

10

F

Remove the protective cover.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

2 x Set-up and installation If the installation conditions require the hydraulic connection to be directly upwards, the cover hood can be cut out along the broken line.

Fig. 2-4

– –

Creating the hood cut-out

Pay attention to the stipulated tightening torque (see section 2.1). Design the lines as such that the sound attenuation cowl can be applied without any problem following assembly. WARNING! There is a danger of scalding at hot water temperatures over 60°C. This is possible, when solar energy is used, with a connected external heating device, when the Legionella protection is activated or when the domestic hot water target temperature is set higher than 60°C. ● Install scald protection (hot water mixer).





Water shortage protection: The temperature monitoring of the controller safely switches off the DAIKIN EKHHP in the event of a water shortage. No additional water shortage protection is needed in the construction. Nevertheless, regular checking of the fill level is necessary in order to ensure function as intended. Avoid damages caused by deposits and corrosion: Observe the requirements for the buffer water storage (see section 1.5.6).

Fig. 2-5

1 2 3 4 6 7 7a 8a 8b 9 10

Hydraulic connection - legend see tab. 2-2 (Example EKHHP500AA2V3 with Solar and optional auxiliary heater)

Cold water connection Hot water distribution network Feed Solar or for other heat source* Return Solar or for other heat source* Circulation* Customer's side: Check valve, return valve Circulation brakes (2 in number) Recommended accessory Feed Solar or for other heat source* Return Solar or for other heat source* Gas line (refrigerant) Liquid line (refrigerant)

EKHHP DAIKIN Heat pump indoor unit EKSRPS4A DAIKIN Solar regulation and pump unit* FLG FlowGuard - Solar regulating valve with flow indicator* ERWQ DAIKIN Heat pump external unit FLS FlowSensor - Solar flow and feed flow temperature measurement* PK Boiler circulation pump* PZ Circulation pump* SK Solar panel field* SV Customer's side: Safety over-pressure valve WEX External heat generator* *

Optional

Tab. 2-2 Legend for fig. 2-5

● Carefully insulate pipe lines against heat loss and so as to avoid the formation of condensation (insulation thickness at least 20 mm).

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Installation and maintenance manual

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2 x Set-up and installation ● Connect the drain hose to the connection piece for the safety overflow (see fig. 2-6 and overview image on page 2, item 23). – Use transparent drain hose (draining water must be visible). – Connect the drain hose to an adequately dimensioned waste water installation. – Drain should not be lockable.

2.5 Laying coolant lines ● Check whether oil trap arc necessary. – Required if DAIKIN EKHHP is not installed at ground level with the heat pump exterior unit (fig. 2-7, HO ≥ 10 m). – At least one oil trap arc must be installed every 10 m difference in height (fig. 2-7, H = clearance from oil trap arc to oil trap arc). – Oil trap arc only required in gas line. ● Install lines with bending unit and an adequate clearance to electrical lines. ● Only solder with light nitrogen flow (hard soldering only). ● Do not apply heat insulation to joins until after start-up (for purposes of leakage search). ● Establish crimped connections and connect to the units ( pay attention to the tightening torque, see section 2.1).

B

Fig. 2-6

E

Installation of drain hose at safety overflow

2.4.1 Optional: External heat generator installation WARNING!

A

If you operate the DAIKIN EKHHP when the storage tank is not completely full, damage to the equipment may occur.

For support or as an alternative for heating by the heat pump you can connect external heat generators (e.g. Solar, gas or oil boiler) to the DAIKIN EKHHP. The heat supplied by the external heat generator must be added to the unpressurised storage tank water in the DAIKIN EKHHP hot water storage tank. ● Carry out hydraulic connection in accordance with one of the two following possibilities: a) EKHHP(3/5)00AA2V3: unpressurised via connections (solar infeed and solar return) of the hot water tank or b) Only EKHHP500AA2V3: via the integrated pressurised solar heat exchanger. – Take the position and dimensions of the connections from the overview image on page 2 and tab. 0-1 on page 3. – Carry out hydraulic system incorporation in accordance with fig. 2-5. Pay attention to the stipulated tightening torque – (see section 2.1). – Design the lines as such that the sound attenuation cowl can be applied without any problem following assembly.

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H

● Fill the DAIKIN EKHHP only after all the installation work has been completed. ● Observe the sequence during the filling process. ● Commissioning only after all the installation work has been completed and only after filling the storage tank completely.

Ho

C

D

A B C D E H HO

DAIKIN ERWQ DAIKIN EKHHP Gas line Liquid line Oil trap arc Height to 1st oil trap (max. 10 m) Height difference between heat pump exterior unit and heat pump interior unit.

Fig. 2-7

Oil trap arc coolant line

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

2 x Set-up and installation 2.6 Pressure test and filling the coolant circuit RISK OF ENVIRONMENTAL DAMAGE! Important information regarding the coolant used. The complete heat pump system contains refrigerant with fluorinated greenhouse gases which damage the environment if released. Coolant type: R410A GWP* value: 2087,5 * GWP = Global Warning Potential

● Work on fixed cooling systems (heat pumps) and air-conditioning systems can only be performed by persons who hold a certificate of competence for the European Region, in accordance with the F-Gas Regulation (EC) No. 303/2008. ● Fill in the total coolant filling quantity on the supplied lable on the heat pump exterior unit (for information consult the installation instructions for the heat pump exterior unit). ● Never allow coolant to be released into the atmosphere - always suction it off and recycle using a suitable recycling device.

1. Open the shutoff valve for the cold water supply pipe. 2. Open the hot water tap connections so that the draw-off volume can be set as high as possible. 3. Once water has been discharged from the tap connections, do not interrupt the cold water flow; this will ensure that the heat exchanger will be fully vented and that any impurities or residue will be discharged. 4. Connect a hose with 1" female thread to the flow connection (see overview illustration on page 2, item 1). Alternatively, you can use the KFE filling connection (accessory KFE BA) (see KFE BA instructions). 5. Fill storage tank (see section 7.2.).

2.8 Electrical connection WARNING! Touching live parts can result in an electric shock and lead to potentially fatal injuries and burns. ● Before beginning work on live parts, disconnect all of the systems circuits from the power supply (switch off main switch, disconnect fuse) and secure against unintentional restart. Means with contact separation in all poles that provide full disconnection must be incorporated in the fixed wiring in accordance with the wiring rules. ● The electrical connection and working on the electrical components should only be performed by electrical engineers in compliance with valid standards and guidelines as well as the specifications of the energy supply company. ● The equipment covers and maintenance opening covers must be re-fitted immediately after completion of the work.

● Perform pressure test with nitrogen. – Use nitrogen 4.0 or higher. – Maximum 40 bar. ● After leak search is complete, completely drain. ● Evacuate the lines (see installation instructions of the heat pump external unit). ● Check whether additional coolant is needed for primer filling, fill where necessary. ● Open stop valve on exterior unit completely until the stop. Tighten loosely. ● Reassemble valve caps.

2.7 Filling the system with water

CAUTION! In the controller housing of the DAIKIN EKHHP, in continuous running, elevated temperatures can be generated. This can result in currently-carrying wires from reaching higher temperatures during operation due to self-heating. For this reason, these lines need to have a continuous use temperature of 90°C.

WARNING! If you operate the DAIKIN EKHHP when the storage tank is not completely full, damage to the equipment may occur. ● Fill the DAIKIN EKHHP only after all the installation work has been completed. ● Observe the sequence during the filling process. ● Commissioning only after all the installation work has been completed and only after filling the storage tank completely.

CAUTION! If filling or topping up the storage tank is done by means of the boiler filling and drain valve, a temporary UK only! filling loop must be used with the appropriate backflow prevention device in accordance with clause G24.2, Guidance to the Water Supply (Water Fittings) Regulations 1999. Observe the information on the water connection and water quality in accordance with section 1.5.5.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

● For the following connections, use only cables with a long-term use temperature ≥90°C: – Exterior heat pump unit – Power supply Booster Heater – Contacts (connection HT/LT/Smart Grid) – – – – –

Network connections need to be executed as independent power circuits. Ensure power cables, sensor cables and data bus cables are laid separately from each other. Use only cable trunking with separate trays or cable trunking with separators that ensure at least 2 cm spacing. Cable cross-overs are not permissible. For all the cables connected to the DAIKIN EKHHP, effective tension relief must be ensured in the controller housing using cable ties.

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2 x Set-up and installation 2.8.1 EKHHP on heat pump external unit, mains connection Booster Heater (BOH) ● ● ● ● ● ● ●

● ●

Check the supply voltage (~230 V, 50 Hz). Disconnect the junction box of the domestic installation. Install the heat pump external unit. Lay the mains and communication cable (4 core, 0.75 mm²) between heat pump external unit and DAIKIN EKHHP. Connect mains and communication cable to heat pump external unit (see relevant installation instructions). Connect DAIKIN EKHHP to the heat pump external unit (see fig. 2-8). Lay the cable (3 core, >1.5 mm²) for the power supply to the Booster Heater between distributor box of the house installation and the DAIKIN EKHHP. Connect the cable for power supply on the Booster Heaters to the DAIKIN EKHHP (see fig. 2-8). Connect the cable for power supply to the Booster Heater on the distributor box of the house installation (see fig. 2-8).

b) If it is configured as a normally-closed switching contact, then the parameter [7-00] = 2 must be set. If the EVU transmits the reduced tariff signal, the switching contact HT/LT is opened. The installation switches to "Reduced Mode". If the signal is sent again, the potential-free switching contact HT/LT closes and the system resumes operation.

HT/NT SG GND+IN1 GND+IN2 X2M Fig. 2-9

Low tariff mains connection (EVU receiver) Smart Grid - connection (EVU receiver) Connection HT/NT-swiych contact on EKHHP Connection Smart Grid-switch contact on EKHHP Terminal rail on EKHHP Electrical connection HT/NT- and Smart Grid switching contact

2.8.3 Connection intelligent controller (Smart Grid SG) Once the function is activated by the parameter [7-00] = 3 (see section 5.5.2), the heat pump is changed to Stand-By, Normal or an operating mode with higher temperatures, depending on the signal from the energy supply company. For this you need to connect the potential-free switching contacts HT/NT + SG of the intelligent regulator to the connections (GND+IN1) / (GND+IN2) on the DAIKIN EKHHP (see fig. 2-9). ERWQ02AV3 Fig. 2-8

Heat pump external unit

Electrical connection DAIKIN EKHHP

When switching off the heat pump external unit using a switching system prescribed by the energy supply company (EVU), the DAIKIN EKHHP is switched off as well. This complete switch-off of the heat pump external unit is an optional installation and must only be carried out by experts.

2.8.2 Low tariff mains connection (HT/NT) If the external unit is connected to a low tariff mains connection, the potential-free switch contact 4 of the receiver that evaluates the low tariff input signal transmitted by the electricity supply company (EVU) must be connected to the connections GND/IN1 of the DAIKIN EKHHP (see fig. 2-9). When setting the parameter [7-00] > 0 certain system components are switched off during high tariff times (see operating instructions for the controller). The potential-free switching contact GND/IN1 can be designed as a normally-closed or a normally-open switching contact. a) If it is configured as a normally-open switching contact, then the parameter [7-00] = 1 must be set. If the EVU transmits the reduced tariff signal, the switching contact HT/LT is closed. The installation switches to "Reduced Mode". If the signal is sent again, the potential-free switching contact HT/LT opens and the system resumes operation.

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As soon as the Smart Grid function is active, the HT/NT function is deactivated automatically. Depending on the value of the parameter [7-00] the heat pump is operated in a different manner (see operating manual for the controller).

2.8.4 Optional: External heat generator installation When using an external heat generator, this can be connected using a potential-free switching contact (NT/LT) on the DAIKIN EKHHP. If the potential-free switching contact is closed by an external heat generator, the DAIKIN EKHHP reduces its own heat generation to allow the external heat generator have priority (for settings see chapter 5.5.2).

GND IN1 WEX X2M

Connection potential-free switching contact on EKHHP Connection potential-free switching contact on EKHHP External heat generator Terminal rail on EKHHP

Fig. 2-10 External heat generator electrical connection

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

3 x Start-up 3

Start-up WARNING! An improperly commissioned DAIKIN EKHHP can endanger the lives and health of persons and its function can be impaired. The initial commissioning of the DAIKIN Hot water heat pump should only be carried out by authorised and trained heating experts. CAUTION! A DAIKIN EKHHP not put into operation properly can lead to damage to property and the environment. ● Observe the applicable rules of technology to prevent corrosion products and deposits. Minimum requirement of the quality of the filling and top-up water: – Water hardness (calcium and magnesium, calculated as calcium carbonate): ≤ 3 mmol/l – Conductivity: 1500 (ideal: < 100) μS/cm – Chloride: ≤ 250 mg/l – Sulphate: ≤ 250 mg/l – pH value: 6.5 - 8.5.

3.1 Start-up 3.1.1 Requirements: – The DAIKIN EKHHP system is set up and completely connected. – The coolant system is dehumidified and filled with the specified amount of coolant. – The hot water distribution network is bled and has the correct pressure applied (see section 2.7). – The storage tank is filled up to the overflow (see chapter 7.2). – Optional accessories have been mounted on and connected up. After the DAIKIN EKHHP was installed and connected completely, it will need to be undergo a one-time adaptation to the installation environment to be carried out by technical personnel (configuration of optional accessories, setting the parameters). After this configuration is complete, the installation is ready for operation and the operator can make additional custom configurations on it. The heating expert must instruct the user, generate the commissioning report and fill it in.

● If the above-mentioned minimum water quality requirements set by the local water supply company cannot be guaranteed, suitable water treatment measures must be taken. ● The domestic water quality must comply with the EU Guideline 98/83 EC and the regionally-applicable regulations. CAUTION! If the DAIKIN EKHHP is started when the storage tank is not completely full, a reduction in output may arise when heating or destruction of the integrated Booster Heaters (BOH) may occur and may cause an electrical fault. ● DAIKIN EKHHP only to be operated with full storage tank.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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3 x Start-up 3.1.2 Start the system ● Check all the points on the enclosed checklist. Document the test result. ● Switch on the power supply at the distributor box of the house installation for the DAIKIN Hot water heat pump. ● Switching DAIKIN EKHHP on.

● Perform a test run: – Allow the temperatures to be displayed (see section 5.2.3). – Test the hot water generation function. Select a higher set hot water temperature so that the heating function is activated (see section 5.3.1). ● Sign the check list, together with the operator. Only if it is possible to answer all items on the check list by Yes, is it allowed to commission and hand over the DAIKIN Hot water heat pump to the operator.

1. 2. 3.

Check list for start-up DAIKIN EKHHP system set up in accordance with a permitted installation variant and no damage detected? Minimum distance between the DAIKIN EKHHP and other sources of heat (>80°C) of 1 m? Booster Heater:

 Yes  Yes

– Does the mains connection comply with the regulations and is the mains voltage 230 volts at 50 Hz? – Has the residual current device been fitted in accordance with the individual country-specific regulations?

 Yes  Yes

Is the heat exchanger for domestic hot water heating in the DAIKIN EKHHP full and has it been bled? 5. Is the storage tank full with water to the overflow point? 6. Is the safety overflow connection connected to an open drain? 7. Is the water pressure on the sanitary side < 6 bar? 8. Are all hydraulic connections tight (leaks)? 9. Have the parameters been set on the controller in accordance with the structural conditions, possibly connected accessories and the user stipulations? 10. Is the parameter [7-02] set to the value 0? 11. Does the installation operate without faults? 12. Has the operating manual been handed over, and has the owner been instructed?

 Yes

4.

Location and Date:

 Yes  Yes  Yes  Yes  Yes  Yes  Yes  Yes

Signature of installer: Signature of operator:

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

4 x Decommissioning 4

Decommissioning WARNING! Danger of scalding and flooding when opening the solar return flow coupling or hot water connections due to escaping hot water. ● Draining the storage tank only – after it has cooled down for a long enough period, – with a suitable device for the safe draining or catching of escaping water, – wearing appropriate protective clothing.

4.1 Temporary shutdown

B

Safety overflow

C E

CAUTION! A shut down Hot water heat pump can freeze in the event of frost and may suffer damage. ● Drain the water out of the shut down Hot water heat pump if there is a risk of frost. ● If the Hot water heat pump is not drained and there is a risk of frost, the power supply must be secured and the external main switch must remain switched on.

Fig. 4-1

Connecting the drain hose

Hose connection piece for safety overflow Threaded piece

Optional: Removing the connection piece from the safety overflow

● Remove the cover plate from the filling and emptying fitting.

E

If the DAIKIN EKHHP is not needed for a long time, it can be temporarily decommissioned. However, DAIKIN recommends not disconnecting the system from the power supply, but just switching it off (actuate button ). The system is then protected from frost. If it is not possible to guarantee the power supply when there is danger of frost, – completely discharge the DAIKIN EKHHP on the water side. If there is a danger of frost and the power supply cannot be guaranteed for just a few days, the unit's excellent heat insulation means that the DAIKIN EKHHP does not have to be drained, provided that the storage tank temperature is monitored regularly and does not fall below +3°C.

Fig. 4-2

Unscrew threaded piece

● Place a suitable collection trough beneath the filling and emptying fitting. ● Unscrew the threaded piece (fig. 4-3, item E) at the filling and draining connection, and remove the plug (fig. 4-3, item F) and immediately screw in the pre-assembled hose connector (fig. 4-1, item C) into the filling and draining connection (fig. 4-3) again. CAUTION! Storage water will gush out as soon as the sealing plug is removed. There is no valve and no non-return flap on the filling and draining connection.

However, this does not provide frost protection for the connected heat distribution system.

4.1.1 Draining the storage tank ● Disconnect the DAIKIN EKHHP from the power supply. ● Remove connection piece (fig. 4-1, item C) from safety overflow (fig. 4-1, item B). ● Connect the drain hose to the hose connection piece (item C) and to a waste water drainage point which is at least at ground level. As an alternative, you can use the optional KFE filling connection (KFE BA).

Fig. 4-3

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Screwing pre-assembles connector into the filling and draining connection

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4 x Decommissioning 4.1.2 Draining the hot water circuit ● Close the cold water supply to the DAIKIN EKHHP. ● Separate the cold water supply pipe to the DAIKIN EKHHP and allow the hot water distribution network to empty out. ● Isolate the cold water supply and hot water outlet from the DAIKIN EKHHP. ● Connect drain hoses to cold water supply and hot water outlet so that the end of the hose is located just above ground level. ● Allow heat exchanger to drain according to the siphon principle.

4.2 Final shutdown WARNING! Cooling systems (heat pumps), climate control systems and heating devices that are incorrectly dismantled can both endanger the life and health of people and exhibit impaired function during start-up. ● Work on the DAIKIN EKHHP (such as dismantling components, temporary or final shutdown of system) is only to be carried out by persons who are authorised and who have successfully completed qualifying technical or vocational training for the specific activity and who have taken part in advanced training sessions recognised by the relevant responsible authorities. These include, in particular, certified heating engineers, qualified electricians and HVAC specialists, who on account of their professional training and expert knowledge, have experience in the professional installation and maintenance of heating, cooling and air conditioning systems and heat pumps. ● You must observe the warning and safety instructions in the installation manual on working in the coolant system. A final shutdown may be necessary if – the system is defective and is being dismantled and disposed of. – components of the system are defective, are being dismantled and replaced. – the system or parts of the system are being dismantled and reassembled in another location. The DAIKIN EKHHP is designed to be environmentally friendly and easy to install: the jobs described above can therefore be carried out in an efficient and environmentally-friendly manner. When changing location or replacing parts on the coolant system in the pipe network: ● Pump the coolant back into the external heat pump unit (see installation and operating guide for the particular external heat pump unit).

CAUTION! Coolant escaping from the system causes long-term damage to the environment. Mixing different kinds of coolant can result in hazardous toxic gases being released. Mixing with oils when coolant escapes can lead to the soil being contaminated. ● Never allow coolant to be released into the atmosphere - always suction it off and recycle using a suitable recycling device. ● Always recycle coolant, in so doing keeping it separated from oils and other additives. ● Only store different types of coolant separately, in suitable pressure vessels. ● Dispose of coolants, oils and additives properly and in accordance with the applicable national regulations of the country it is being used in. ● Decommissioning a DAIKIN EKHHP (see section 4.1). ● Disconnect the DAIKIN EKHHP from all electrical connections, refrigerant and water connections. ● Dismantle the DAIKIN EKHHP or components in accordance with the installation guide in reverse order. ● DAIKIN EKHHP disposed off in a professional manner.

Recommendations for disposal The DAIKIN EKHHP has an environmentally friendly design. During the disposal process, the only waste created is that which can be used for material or thermal recycling. The materials used that are suitable for recycling can be sorted into individual types. DAIKIN has complied with the standards for environmentally-friendly disposal as a result of the environmentally-friendly design of the DAIKIN EKHHP. Proper disposal in compliance with the respective national regulations of the country of use is the responsibility of the user/owner. The designation of the product means that electrical and electronic products may not be disposed of together with unsorted domestic waste. Proper disposal in compliance with the respective national regulations of the country of use is the responsibility of the user/owner. – Disassembly of the system, handling of coolant, oil and other parts may only be carried out by a qualified fitter. – Disposal may only be carried out by an organization that specialises in reuse, recycling and recovery. Further information is available from the installation company or the responsible local authorities.

When disposing of the machine or replacing parts in the coolant system: ● Suction the coolant from the machine and recycle (see installation and operating guide for the particular external heat pump unit).

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

5 x Operation, Parameters 5

Operation, Parameters

You can switch the system off and on at the controller for the DAIKIN EKHHP, you can also set the hot water generation and timer programmes, carry out settings for the operating mode of the heat pump external unit and change parameter settings. When you connect a DAIKIN solar system to the EKHHP, the relevant setting for this must be made in the parameter settings. The procedure and available settings are described in section 5.5.1 and 5.5.2.

5.1 Displays and function of operating elements CAUTION! Never operate the operating elements on the controller with a hard, pointed object. This can cause damage and can cause the control unit to malfunction.

34 - Sensor number display This code refers to the temperature displays (see section 5.2.3).

35 - Display Time The clock display shows the current time. The set switching time is indicated in the display in the programming mode.

36 - Display Weekday This display shows the current day of the week. The set day is indicated in the display in the programming mode.

37 - Display refrigerant compressor active This icon shows that the refrigerant compressor is active in the external heat pump unit.

38 - Display switching time programme switched on This icon shows that the timer function is switched on.

39 - Display active switching times These icons indicate the active switching times of the current day of the week.

40 - Display off status in timer programme This icon shows that the current switching time has switched the system off.

41 - Display booster heater (BOH) is switched on This icon shows that water heating is being supported by the Booster Heater (BOH).

42 - Display external signal (HT/NT/Smard Grid) This icon indicates that the DAIKIN EKHHP is influenced in its operating mode by closed switching contacts (see Parameter [7-00]).

43 - Display function "defrost"

active

This icon shows that the operating mode "defrost" or start-up is active.

44 - Display storage tank temperature This symbol appears if the hot water temperature in the integrated storage tank is displayed. Fig. 5-1

For display and operating elements of the control legend see tab. 0-1 and the following description

30 - Key "On / Off" Switch on and off the DAIKIN EKHHP. When the Hot water heat pump is switched on, the operating display LED lights up red. Pressing the key too often repeatedly can cause the system to malfunction (maximum of 20x per hour).

The icon is also shown if the temperature target value is set in programming mode.

45 - Display operating mode "Automatic" This icon indicates that the heat pump is running in the "Automatic" mode.

46 - Display external temperature active

31 - Operating display LED

If this icon flashes, the outside temperature is shown in the temperature display (47) (see section 5.2.3).

The operating display LED lights up during hot water heating operation. The LED flashes if there is a malfunction. If the LED is switched off, the DAIKIN EKHHP is switched off.

47 - Display hot water temperature or other temperature values

32 - Display operating mode "Low Noise"

The display shows various temperature values (see section 5.2.3).

This icon indicates that the heat pump external unit is running in low noise mode.

48 - Display "Function not available"

In this operating mode the output of the system is reduced so that the operating noise of the external heat pump unit is reduced.

33 - Display hot water generation active

This icon is always shown if an option that has not been installed is selected or if a function is not available.

49 - Display parameter setting mode active

This icon indicates that the hot water heating mode is active.

The display indicates that the user can see and change the parameter settings.

If the hot water generation is operating in "High Output" mode , the icon flashes .

50 - Display Service technician required

The symbol flashes more quickly during thermal disinfection (Legionella mode).

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

This icon shows that the system must be checked. Get in touch with your heating specialist or nearest DAIKIN contractual partner.

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5 x Operation, Parameters 51 - Display Parameter code or Fault code

5.2.2 Setting the clock

This display represents the code from the parameter setting (see section 5.5) or the fault code (see chapter 6.2).

Setting the time

52 - Keys Setting hot water temperature

and

These keys are used to adjust the set temperature for hot water generation.

53 - Key operating mode "Automatic" This key activates and deactivates the automatic mode. In this mode the Booster Heater (BOH) is switched on in the integrated storage tank of the DAIKIN EKHHP for the heating procedure if required.

54- Key Programming This multifunction key is used to program the switching times.

55 - Key operating mode "High Output" This key activates and deactivates the accelerated heating mode. It is heated using a heat pump and integrated electrical Booster Heater (BOH).

56 - Key activation/deactivation of timer programme The main function of this multifunction key is to activate/deactivate the timer programme. The key is also used to programme the parameters.

57 - Key operating mode "Low Noise" This key activates and deactivates the low noise mode. In this operating mode the output of the system is reduced so that the operating noise of the external heat pump unit is reduced.

● Press key for at least 5 s.  The time and display of the weekday starts flashing. and to set the time. ● Use the keys  The time is increased/decreased by 1 min. or pressed Holding the key increases/reduces the time by 10 min. ● Press the key to save or press the key again to cancel the setting.

Setting the weekday ● Press key for at least 5 s.  The time and display of the weekday starts flashing. and to set the weekday. ● Use the keys  The weekday is increased/decreased by 1 day. ● Press the key to save or press the key again to cancel the setting.

5.2.3 Display of the current Temperature ● Press the key for 5 s.  The icon and the outside temperature are displayed.  The icons + flash in the display on the controller.  The display (fig. 5-1, item 34) shows the sensor number 001. and to select the following ● Use the keys temperatures: Sensor No.

Temperature sensor

These keys have several functions such as: – Setting the time. – Switching between the display of outside temperature and the storage tank temperature (see section 5.2.3). – Setting the switching times for the timer programme.

001

External temperature

002





003





004

Storage tank temperature

59 - Key error code / parameter setting

005



58- Key Time setting

and

This key has several functions: – Extended key push (>5 sec.): Setting the parameters – Brief key push: Display of last fault code

5.2 Basic functions Certain menu items in the controller are only accessible to the specialist heating technician. This security measure ensures that no undesirable malfunctions arise through incorrect configuration.

5.2.1 Switching the system on and off ● Press the key.  The operation LED lights up red.  During start-up, the icon is shown in the display of the controller.

Icon flashes.



Tab. 5-1 Temperature displays

If no button is pressed within 30 s, the control leaves display mode.

5.2.4 Defrost At low outdoor temperatures and corresponding humidity values, the external heat pump unit may ice up. This icing impairs efficient operation. The system detects this condition automatically and starts the melting operation . In the defrosting mode, heat is drawn from the heat pump inside unit (EKHHP) and the Booster Heater (BOH) is switched on if necessary. After 8 minutes at most, the system returns to normal mode.

After start-up, the current operating mode is shown in the display of the controller. When you press the key again, the system is shut down and the Operation LED goes out.

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

5 x Operation, Parameters 5.3 Operating modes

5.3.2 Automatic

MAXIMUM ENERGY UTILISATION The most effective energy utilisation is achieved by the DAIKIN Hot water heat pump at the lowest possible hot water temperatures. At temperatures in excess of 50°C, the effectiveness (COP) of the DAIKIN Hot water heat pump will be made worse by the heating support provided by the electrical heater (Booster Heater), depending on the outdoor temperature.

5.3.1 ECO In order to increase the efficiency, we try not to use the integrated electrical Booster Heater (BOH) in this operating mode (simultaneous operation of Hot water heat pump and Booster-Heater (BOH) is not permitted, other than with activated "Low-Noise Operation").

This operating mode is identical to the operating mode "ECO", but the integrated electric Booster Heater (BOH) is automatically switched on to aid heating and other settings are carried out automatically to guarantee convenient operation. ● Press the key.  Icon is shown in the display of the controller. ● Press the key or briefly.  The current target temperature for hot water is displayed for 5 s on the display of the controller. ● Within the 5 s, use the and keys to set the required hot water temperature. Higher power costs can be generated than with other operating modes when using this operating mode. When you press the key again, the operating mode "Automatic" is switched off and the icon goes out.

In addition, most individual settings can be made in order to guarantee convenient and efficient operation. The settings are carried out using the parameters, as described in chapter 5.6.

5.3.3 Low Noise

If the installation is switched on, it regulates the hot water generation fully-automatically based on the set tipulations in the controller.

Low noise mode means that the exterior heat pump unit is operating at reduced output. This reduces the operating noise caused by the exterior heat pump unit.

 Icon  Icon

is shown in the display of the controller. is not shown in the display of the controller.

● Use the and water temperature.

keys to set the desired hot

The hot water set temperature should be selected so that, in combination with the setting for the hysteresis (parameter [6-00]), the buffer storage of the DAIKIN EKHHP is not cooled excessively by the hot water generation. The hot water generation can be affected by additional functions: – Low-noise operation – Switching times programming – Automatic defrosting function – Thermal disinfection (Legionella protection) – HT/NT Function – SmartGrid Function If the user enters a value manually, this setting remains active until the user changes it or until set special functions affect it. At the end of the special function, we again use the set value. Setting the switching times for the hot water generation is described in chapter 5.4. If the set temperature value for hot water generation is not achieved by the heat pump external unit, the controller switches over to the integrated Booster Heater (BOH). The Booster Heater (BOH) is only switched on if the hot water temperature has been set above the maximum temperature value achievable by the heat pump (THP MAX) and the value measured by the temperature sensor has reached the temperature (THP Max).

The operating mode "Low noise operation" reduces the output in DHW heating operation with the result that it may no longer be possible to reach the preset target temperatures. ● Press the  Icon

key. is shown in the display of the controller.

5.3.4 High Output It is heated to the set hot water temperature using a heat pump and integrated electrical Booster Heater (BOH). The operating mode "High Output" can be activated if larger hot water draw-off volumes are required for a short period. ● Press the key.  Icon flashes in the controller display. The output support is automatically deactivated again once the specified target temperature for hot water is reached.

5.4 Setting the timer programme The DAIKIN EKHHP can be controlled according to manual settings or according to a freely-programmable timer programme. A timer programme is not included at the factory. The user can programme up to 5 switching points for each day to control the hot water generation and the operating mode (normal, low noise). The timer programme is switched on and off using the key. Saved time switching points can be changed or deleted at any time. To have a better overview, we recommend making a record of the programmed switching times and keeping this in a safe place. The user can carry out manual setting changes even if the timer programme is switched on. The controller always only works according to the most recent user parameters set until new parameters are set. In this way, manually executed settings are cancelled by the timer programme at the next active switch time.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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21

5 x Operation, Parameters The integrated Booster Heater (BOH) is also controlled in a fullyautomatic manner by the controller integrated in the DAIKIN EKHHP. The switching limits and switching time periods are defined in the parameter settings. If the Booster Heater (BOH) is switched on, in the display of the controller, the icon appears. If the DAIKIN EKHHP is in an "OFF" period, the tariff contact HT/LT and SG can no longer be evaluated and thus have no influence on the operation of the installation.

5.4.1 Display switching times 1. Press the key.  The current operating mode flashes. 2. Use the and keys to select the operating mode to be programmed.  The selected operating mode flashes. 3. Use the key to confirm the selection.  The first weekday "MON" is displayed. 4. Use the and be programmed.

keys to select the weekday to

5. Use the key to confirm the selection.  The first switching time programmed for the selected operating mode is displayed. 6. Use the and keys to move to the other switching times for this operating mode. Empty switching times are not displayed. This key moves you back by one step.

5.4.2 Programming switching times 7. Hold the

key pressed for 5 s.

8. Use the

key to select the switching time number.

9. Use the

and

keys to set the starting time.

10. By pressing the key, you can select the type of switching for this switching time number. 11. Confirm the switching time and switching type using the key (press briefly). 12. Repeat steps 8 to 11 to program the other switching times or to change to the highest switching time of the current day (see step 6). Then continue with step 13 to complete programming. 13. Hold the key pressed for 5 s.  The switching time set is displayed, saved and all switching times below that are also saved. All switching times above the current switching time are deleted.  It automatically returns to step 6.

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Fig. 5-2

Display and programme switching times

5.4.3 Delete switching time Delete individual switching times Deleting one or more programmed switching times is carried out at the same time as saving the programmed switching times. The following table explains the procedure. For example: – – – –

At least 4 switching times were programmed for Monday. Switching times 1 to 3 are set. After the third switching time, the key (hold for 5 secs.) confirms the end of the programming. The fourth switching time and, if there is one, the fifth switching time will be deleted.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

5 x Operation, Parameters Deleting all switching times of an operating mode Only all switching times for a weekday of a certain operating mode can be deleted per delete operation. To do this, proceed as described in section "Delete individual switching times", but, after selecting the weekday, hold down the key twice, one after the other, for 5 secs.

5.5 Parameter settings All parameters of the control are described in detail in this section. An overview of all parameters, their factory settings and setting ranges are listed in tab. 5-5. DAIKIN recommends you note all changes to the parameters and switching times in the tables in section 5.5.4 and section 5.5.5.

5.5.1 Setting parameters Each parameter/function is allocated a 3-digit code (e.g. [0-03]), which is displayed on the controller display (fig. 5-4, item 2). The first number [0] shows the parameter group (Code 1 in tab. 5-5). The second and third number [03] show the relevant parameter in this group of parameters (Code 2 in tab. 5-5).

1 2

Parameter value Parameter code

Fig. 5-4

3

Display parameter setting mode active

Parameter setting on the controller

1. Press key for at least 5 s.  The icon is displayed.  The current parameter code is displayed (fig. 5-4, item 2).  The set parameter value of the relevant parameter code is displayed (fig. 5-4, item 1). Fig. 5-3

In order to set the parameter groups 2 to C (area marked in grey in tab. 5-5) ("Advanced Mode"), you need to push the key again for at least 10 secs.

Delete individual switching times

2. Use the

key to select the parameter group.

3. Use the

key to select the parameter to be set.

4. Use one of the or of the parameter selected. 5. Press the

keys to change the setting

key to save the value.

6. Repeat steps 2 to 5 to set other parameters or press the key briefly to exit the parameter setting mode.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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5 x Operation, Parameters If the temperature in the storage tank falls because of a draw-off, the thermal disinfection will be restarted.

Changes to parameters are only saved if the key is pressed. Changing to a new parameter code or pressing the key rejects the changes made.

If the thermal disinfection is prevented, e.g. by the hightariff signal (Booster Heater (BOH) blocked), this is carried out as soon as the DAIKIN Hot water heat pump is in the normal mode again (see tab. 5-3).

5.5.2 Parameter description [0] - Temperature settings operating modes The following setting options are available: – –

[0-00] Hot water set temperature for the operating mode "High Output". [0-01] Hot water set temperature for the thermal disinfection of the hot water storage tank (Legionella protection).

[3] - Other points The following setting options are available: –

WARNING! The settings of the Legionella protection must always be configured in accordance with the country-specific laws. If no hot water is used for several days and the storage temperature of the DAIKIN Hot water heat pump does not reach at least 60°C, for hygiene reasons (Legionella protection) it is periodically heated up to above 60°C once. –





[0-02] Set value heat retention function. This set value is taken up as soon as the DAIKIN Hot water heat pump is in an "OFF" period and serves to maintain a minimum storage tank temperature. The DAIKIN Hot water heat pump starts as soon as the water temperature in the storage tank has fallen below the temperature hysteresis (depending on the operating mode and setting). [0-03] Switch-off temperature heat retention function: Temperature at which the DAIKIN Hot water heat pump stops the reheating procedure. [0-04] Activation temperature heat retention function: Determines whether automatic reheating takes place if the temperature falls below the parameter value [0-02]. – 0 = Function is switched off – 1 = Function is switched on

[2] - Thermal disinfection (Legionella protection) An ON temperature > 45°C makes sure that only the electrical Booster Heater (BOH) is used and not the heat pump. This increases the usage duration of the refrigerant compressor. The following setting options are available: – –

– –



[2-00] Start day: Day of the week on which the function should be started. [2-01] Automatic disinfection with switched on Hot water heat pump: – 0 = No disinfection – 1 = Automatic disinfection [2-02] Starting time: Time of day at which the function should be started. [2-03] Automatic disinfection in "Stand-by Mode": – 0 = No disinfection – 1 = Automatic disinfection [2-04] Holding time: Length of time the disinfection temperature must be maintained.

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24

[3-00] Automatic restart after a power failure: – 0 = DAIKIN Hot water heat pump starts in "Stand-by" mode. The timer function is not active. – 1 = DAIKIN Hot water heat pump restarts with the previously stipulated user settings. If the DAIKIN Hot water heat pump is connected to a low tariff mains connection, where the power supply is interrupted, this parameter must be set to "1".

– –

[3-01] Access authorisation: Do not change the set value. [3-02] Hot water set temperature > 60°C: – 0 = Setting > 60°C not possible. – 1 = Setting > 60°C possible. The maximum hot water set temperature is limited to 55°C when working exclusively with a heat pump. A hot water set temperature >55°C is only possible when using an electrical Booster Heater (BOH).

[4] - Operation of electrical Booster Heater (BOH The following setting options are available: –

[4-03] Simultaneous operation of the electrical Booster Heaters (BOH) and the heat pump. – 0 = Not possible. – 1 = Is possible only when in operating mode "Low Noise". – 2 = Is possible only when in operating mode "High Output". – 3 = Is possible when in operating mode "Low Noise" and operating mode "High Output".

[6] - Hysteresis for hot water heating These parameter settings determine the temperature thresholds at which heating the hot water is started and stopped by the heat pump (ON temperature and OFF temperature of the heat pump). If the water temperature falls below the ON temperature of the heat pump (THP ON), heating the hot water with the heat pump is started. As soon as the hot water temperature reaches the OFF temperature of the heat pump (THP OFF) or the hot water set temperature (TU), the heating of the hot water by the heat pump is stopped. The following setting options are available: –

[6-00] Start: Temperature difference (switching hysteresis) that determines the ON temperature of the heat pump (THP ON). The set value is only evaluated in the "ECO" operating mode.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

5 x Operation, Parameters An ON temperature > 45°C makes sure that only the electrical Booster Heater (BOH) is used and not the heat pump. This increases the usage duration of the refrigerant compressor. In the operating modes "ECO" and "Automatic" the hot water heating mode only starts when the measured hot water temperature falls below 45°C. –

[6-01] Stop: Temperature difference that determines the OFF temperature of the heat pump (THP OFF).

[7-00] - Low tariff mains connection (HT/LT) / Smart Grid connection (SG) These parameters facilitate the configuration of the DAIKIN Hot water heat pump with an existing low tariff mains connection and Smart Grid connection. As soon as the function is activated by the parameter [7-00] > 0, the operation of the DAIKIN Hot water heat pump is changed, depending on the switch position of the connected potential-free external switching contact. The following setting options are available: –

[7-00]: Stipulation as to whether the heat pump is connected to a low tariff mains connection / Smart Grid connection. – 0 = Normal mains connection (default setting). – 1 = Evaluation low tariff mains connection. – 2 = Evaluation low tariff mains connection. – 3 = Evaluation low tariff mains connection and Smart Grid connection. [7-00]

0 (default)

T THP MAX THP OFF THP ON TU Fig. 5-5





1

Water temperature Maximum water temperature of the heat pump at the temperature sensor in the hot water storage tank (55°C) OFF temperature of the heat pump ON temperature of heat pump hot water temperature (as set on the controller)

2

Illustration of the control system for hot water generation by the heat pump

[6-02] GCO (BOH): stipulates when the Booster Heater (BOH) can be started after the heat pump has been switched on. This setting is only effective if simultaneous operation of the Booster Heaters (BOH) and the heat pump is permitted ([4-03] is not set to 0). [6-03] Priority of "High Output" operating mode: stipulates the priority if the operating modes "Low Noise" and "High Output" are active at the same time.

3

Assessment contact SMART GRID





Normal operating mode

Open



Normal mode (low tariff)

Closed



Reduced mode (high tariff)

Open



Reduced mode (high tariff)

Closed



Normal mode (low tariff)

Open

Open

Normal operating mode

Closed

Open

Reduced mode, expensive power

Open

Closed

Switch-on recommendation, cheap power

Closed

Closed

Switch-on command, cheap power

Settings Operating [6-03] mode 0

1

Operating mode Off

[6-04] = 1 [6-04] = 2 [6-04] = 3

OFF

Normal

Low Noise 1 Low Noise 2 Low Noise 3

ON

High output

OFF ON

Normal

Normal

Low Noise 1 Low Noise 2

Low Noise 1 Low Noise 2 Low Noise 3

High output High output High output High output

Tab. 5-2 Overview of operating modes "Low Noise" and "High Output" with simultaneous activation

If [6-03] is set to "1", the operating mode "High Output" has priority over the operating mode "Low Noise". –

Behaviour of heat pump

HT / LT

Tab. 5-3 Configuration table parameter [7-00]

[7-01] Switch hysteresis Booster Heater (BOH) If the hot water set temperature is set to a value which is above the maximum hot water temperature achieved in exclusively heat pump mode, the electrical Booster Heater (BOH) is switched in for hot water generation (see fig. 5-6). The following setting options are available: –

[7-01] Switching hysteresis Booster Heater (BOH) when hot water set temperature is above the maximum possible hot water temperature in exclusively heat pump mode. Factory setting 2 K

[6-04] Stages in the operating mode "Low Noise": – 1 = Lowest noise reduction. – 2 = Medium noise reduction. – 3 = Highest noise reduction.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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25

5 x Operation, Parameters

Fig. 5-6

BOH HP t TBOH ON THP MAX THP ON TU

Control of hot water generation at high hot water set temperature (legene see tab. 5-4) Booster heater Heat pump Time ON temperature for auxiliary heating (TU – [7-01]) Maximum possible water temperature of heat pump in exclusively heat pump mode (55°C) ON temperature of heat pump If TU ≥ THP MAX – [6-01]: (THP MAX – [6-00] – [6-01]) If TU < THP MAX – [6-01]: (TU – [6-00]) Hot water temperature (as set on the controller)

Tab. 5-4 Legend for fig. 5-6

[7-02] - Emergency operation The parameter [7-02] is set to "0" in the factory. If there is a fault in the heat pump external unit, the parameter [7-02] =1 can be set. Then the hot water heating mode is only via the electrical Booster Heater (BOH) if the fault is detected. Inform the DAIKIN Service Expert. Please use this function only in the event of a fault and you should always reset as soon as the repairs have been carried out, since otherwise elevated costs will be incurred. The electrical Booster Heater (BOH) is activated if a fault in the heat pump external unit has occurred and has been detected for longer than 1 hour.

[E] - Display unit information These parameters allow the display of various different unit information is the heat pump inside unit DAIKIN EKHHP. No settings can be made for this parameter.

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

5 x Operation, Parameters

Code 2

Code 1

5.5.3 Factory settings of parameters Default factory settings

Parameter name Value

Range

Increment

Unit

40

40 - 60

1

°C

01 Hot water set temperature for thermal disinfection

60

50 - 75

1

°C

02 Heat retention function switch-on temperature

40

35 - 55

1

°C

03 Heat retention switch-off temperature

45

35 - 55

1

°C

04 Activation / deactivation of heat retention function

0

0-1

1



2 00 Start day thermal disinfection (Legionella protection)

Fr

every day





0

0-1

0



23:00

0:00 - 23:00

1:00

h

03 Automatic thermal disinfection in "Stand-by" mode

0

0-1

1



04 Holding time thermal disinfection temperature [0-01]

10

5 - 60

1

Min.

1

0-1

1



01 Access authorisation

3

2, 3

1



02 Hot water set temperature >60°C

0

0-1

1



4 03 Simultaneous operation of the electrical Booster Heater (BOH) and the heat pump.

0

0-3

1



6 00 Switching hysteresis of heat pump

10

2 - 20

1

K

0

0 - 15

1

K

120

5 - 120

1

Min.

03 Priority of operating mode "High Output"

1

0-1

1



04 Steps in the operating mode "Low Noise"

1

1-3

1



0

0-3

1



01 Switching hysteresis Booster Heater (BOH) when hot water set temperature is above the maximum possible hot water temperature in exclusively heat pump mode

2

2 - 20

1

°C

02 Setting Emergency mode (use of BOH permitted or not)

0

0-1

1



0







0 00 Hot water set temperature for the operating mode "High Output"

01 Automatic thermal disinfection with switched on Hot water heat pump 02 Start time thermal disinfection

3 00 Automatic restart after a power failure

01 Switch-off temperature difference heat pump 02 ECO timer (BOH)

7 00 Behaviour in low tariff (HT/LT) - / Smart Grid (SG) mode

C 00 Not used E Display unit information 00 Software version

Information value, cannot be changed.

01 EEPROM version

Information value, cannot be changed.

02 Model ID

Information value, cannot be changed.

These parameters are only accessible in the "Advanced Mode" (see section 5.5.1).

Tab. 5-5 Overview parameter settings

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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5 x Operation, Parameters 5.5.4 Individual parameter settings Parameter no.

Value Old

Date

Comments

New

Tab. 5-6 Individual changes to the parameters

5.5.5 Individual switching time settings Operating modes "ECO" / "Automatic" Day

Switching time No. Switching time

:

:

:

:

:

MON

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

TUE

WED

THU

FRI

SAT

SUN

1

2

3

4

5

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Feed temperature

°C

°C

°C

°C

°C

3

4

5

Tab. 5-7 Individual settings operating modes "ECO" / "Automatic"

"Low Noise" operating mode Day

Switching time No.

1

2

MON SUN

Switching time

:

:

:

:

:

Action (On / Off)

ON / OFF

ON / OFF

ON / OFF

ON / OFF

ON / OFF

Tab. 5-8 Individual settings operating mode "Low Noise"

The operating mode "High Output" cannot be activated via the switching times.

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

6 x Malfunctions and fault codes 6

Malfunctions and fault codes WARNING! Touching live parts can result in an electric shock and lead to potentially fatal injuries and burns. ● Before beginning work on live parts, disconnect all of the systems circuits from the power supply (switch off main switch, disconnect fuse) and secure against unintentional restart. ● The electrical connection and working on the electrical components should only be performed by electrical engineers in compliance with valid standards and guidelines as well as the specifications of the energy supply company. ● The equipment covers and maintenance opening covers must be re-fitted immediately after completion of the work.

6.1 Failures Malfunction

Possible cause

System not working (nothing on display, oper- No mains voltage ation LED off)

Possible solution ● Switch on the external main switch of the machine. ● Switch on system fuse(s). ● Replace system fuse(s).

● Set the weekday Day of the week and time are not correctly set. ● Set time. ● Check week day-switching time allocation.

Switching time program is not working or programmed switching times Switching time function deactivated ● Activate switching time function (Key ). are being carried out at During a switching time the user made a man- ● Activate switching time function again (Key the wrong time. ual setting (e.g. changed the target temperature, changed the operating mode)

).

Operating system of control unit crashed.

● Carry out RESET of control unit. To do so, disconnect the system from the power supply for at least 10 s and then switch on again.

Displayed values are not Operating system of control unit crashed. updated

● Carry out RESET of control unit. To do so, disconnect the system from the power supply for at least 10 s and then switch on again.

Control unit does not respond to entries

Hot water does not heat up enough.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Water flow too low.

● Check that all stop valves of the water circuit are completely open. ● Air in hot water delivery circuit, bleed.

Target value range is too low.

● Check parameter [0-00], increase if necessary. ● Set hot water temperature too low, increase manually. ● Check parameter [6-00], reduce if necessary.

Draw-off rate too high.

● Reduce the draw-off rate, limit throughput. ● Check operating mode, select a different operating mode, if necessary (e.g. "High Output").

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29

6 x Malfunctions and fault codes Malfunction

Possible cause

Possible solution

Integrated electrical Booster Heater (BOH) not switched on.

● Operating mode "ECO" selected, select a different operating mode, if necessary (e.g. "Automatic", "High Output"). ● Check parameter [4-03], adjust if necessary. ● Check mains supply to booster heater (BOH). ● Thermal protection switch (STB) of the Booster Heaters (BOH) has triggered. Testing and repair by a DAIKIN heating expert.

Timer programme settings

● Check the switching times, provide adequately long active times. ● Activate the heat retention function to prevent complete cooling down. ● Increase the heat retention function set value (Hot water heat pump starts at parameter [0-02] Hysteresis).

The power company has sent the high-cost signal.

● Wait for the next low-tariff signal which will switch the Hot water heat pump to normal operating mode again.

Hot water does not heat up enough.

Only with external heat generator: External ● Check parameter [7-00], adjust if necessary. heat generator has been set with priority over ● Check settings of external heat generator. the heat pump, but cannot deliver adequate heat supply. Only with EKHHP 500 with optional external ● Check heat delivery by the optional auxiliary heater, heat generator: Optional external heat generincrease if necessary. ator switched in, but cannot guarantee adequate heat delivery. Incorrect sensor values transmitted to the controller.

● Testing and repair by a DAIKIN heating expert.

System switched off (nothing on display, oper- ● Switch system on (button ation LED on) Draw-off rate too high.

).

● Reduce the draw-off rate, limit throughput. ● Check operating mode, select a different operating mode, if necessary (e.g. "High Output").

Installation is in standby because of the switch ● Check programmed switch times. timer programming ● Deactivate switch timer programme. Hot water does not warm up

● HT/LT function is active and the parameter [7-00] is set incorrectly. Other configurations are also possible. However, these Settings for off-peak mains connection do not must match the type of off-peak mains connection. correspond to settings for electrical connec● The Smart Grid function is active and the connections tions. are set incorrectly. ● Have the Hot water heat pump checked by a DAIKIN heating expert.

Fault in heat pump external unit

● Check heat pump external unit. ● For a short period: activate the emergency stop mode, [7-02] = 1, Operating mode "Automatic". ● Testing and repair by a DAIKIN heating expert.

Tab. 6-1 Possible malfunctions of the EKHHP

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DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

6 x Malfunctions and fault codes 6.2 Fault codes The electronic controller of the DAIKIN EKHHP shows error codes on the display. In addition to the error code, the LED on the controller flashes (see fig. 6-1). To delete the error code: ● Press key for at least 5 s. If the error arises again: ● Testing and repair by a DAIKIN heating expert.

1 2

Error code Flashing LED

Fig. 6-1

Error display

Fault code

Component/Designation

A1

PCB fault EKHHP

A5

Refrigerant temperature too high

AC

STL Booster heater (BOH)

E1

PCB in the external heat pump device

E6

Refrigerant compressor blocked

E7

Fan block in the external heat pump unit

E8

Flow rate too high in heat pump external unit

EC

Temperature in internal hot water tank is too high

F3

The discharge temperature from the heat exchanger of the external heat pump unit is too high

H0

Sensor refrigerant circuit

H6

Position sensor refrigerant compressor

H9

Temperature sensor external temperature

HC

Hot water storage tank temperature sensor

J3

Temperature sensor discharge refrigerant compressor

L3

Electrical components

L4

Temperature heat exchanger heat pump external unit too high

L5

Electrical components

P4

Sensor heat exchanger heat pump external unit defective

U0

Refrigerant loss

U2

Power supply interrupted

U4

Faulty communication heat pump internal unit / heat pump external unit

U5

Communication error regulator

UA

No communication heat pump internal unit / heat pump external unit

Tab. 6-2 Possible error codes on the controller of DAIKIN EKHHP

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

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31

7 x Service and maintenance 7

Service and maintenance

7.1 General Regular inspection and maintenance of the DAIKIN EKHHP reduces energy consumption and ensures a long life and smooth operation. RISK OF ENVIRONMENTAL DAMAGE! Important information regarding the coolant used. The complete heat pump system contains refrigerant with fluorinated greenhouse gases which damage the environment if released. Coolant type: R410A GWP* value: 2087,5 * GWP = Global Warning Potential

● Work on fixed cooling systems (heat pumps) and air-conditioning systems can only be performed by persons who hold a certificate of competence for the European Region, in accordance with the F-Gas Regulation (Ec) No. 303/2008. ● Fill in the total coolant filling quantity on the supplied lable on the heat pump exterior unit (for information consult the installation instructions for the heat pump exterior unit). ● Never allow coolant to be released into the atmosphere - always suction it off and recycle using a suitable recycling device.

Have the inspection and maintenance carried out by authorised and trained HVAC engineers once a year, ideally before the heating period. This can prevent faults during the heating period. DAIKIN recommends an inspection and maintenance contract to ensure regular inspection and maintenance.

Legal requirements According to the F-Gases Directive (EC) No. 842/2006 Article 3, replaced on 01.01.2015 by (EC) No. 517/2014 Articles 3 and 4, Operators (or Owners) must perform regular maintenance on their fixed cooling systems, check impermeability and have any leaks repaired immediately. All installation, maintenance and repair work on the cooling circuit must be documented e.g. in the operating manual. Operators of DAIKIN heat pump systems are subject to the following obligations: The European statutory investigation period applies for heat pumps from a total system coolant filling quantity of 3 kg or, as of 01.01.2017 from a total filling quantity of 5 t CO2-equivalent (in the case of R410A from 2.4 kg). DAIKIN nonetheless recommends the conclusion of a maintenance contract, including documentation of the work carried out in the operating manual in order to preserve the right to guarantee, including for systems for which there is not legal obligation to monitor impermeability.

Installation and maintenance manual

32

● With a system coolant total filling quantity of 3 kg – 30 kg or from 6 kg in hermetic systems and from 01.01.2017 with a total filling quantity of 5-50 t CO2-equivalent or from 10 t CO2equivalent in hermetic systems:  Inspections carried out by certified personnel at intervals of no more than 12 months and documentation of the work performed in accordance with valid regulations. This documentation must be retained for at least 5 years.

7.2 Periodic Checks Certified people are those who have proof of expertise for the European Community for work on stationary refrigeration systems (heat pumps) and air conditioning systems, according to the F-Gases Directive (EC). 303/2008. – –

up to 3 kg coolant fill quantity: Expert certificate category II 3 kg coolant fill quantity or over: Expert certificate category I

The filling water can evaporate slightly over a period of time as a result of the design. This process does not represent a technical fault, but is rather a physical property which requires periodic checking and correction, if necessary, by the operator. ● Remove the protective cover (see section 2.4). ● Visual check of the water storage tank level (filling level indicator)  Top up the water if necessary (see section 7.2.1 and 7.2.2, and determine the cause for the incorrect filling level and rectify. CAUTION! Filling the storage tank container with excessive water pressure or with too high a flow speed can cause damage to the DAIKIN EKHHP. ● Only fill with a water pressure <6 bar and a flow speed <15 l/min.

CAUTION! If filling or topping up the storage tank is done by means of the boiler filling and drain valve, a temporary UK only! filling loop must be used with the appropriate backflow prevention device in accordance with clause G24.2, Guidance to the Water Supply (Water Fittings) Regulations 1999.

7.2.1 Filling, topping up storage tank - without installed solar system ● Connect the filling hose with backflush prevention (1") to the connection "DrainBack Solar - feed" (see fig. 7-1, item 1). ● Fill the storage tank on the DAIKIN EKHHP until water comes out of the connection (fig. 7-1, item 23), that has been connected as the safety overflow. ● Disconnect the filling hose with backflush prevention (1") again.

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

7 x Service and maintenance 7.2.2 Filling, topping up storage tank - with optional KFE filling connection or with installed DrainBack solar system ● Without solar system: Connect KFE filling connection (accessory KFE BA) to the filling and draining connection of the DAIKIN EKHHP (see overview image on page 2, item 10) or With solar system: Mount KFE filling connection (accessory KFE BA) on the connection bracket of the control and pump unit (RPS3). ● Connect the filling hose with backflush prevention (1/2") to the previously installed KFE cock. ● Fill the storage tank on the DAIKIN EKHHP until water comes out of the connection (fig. 7-1, item 23), that has been connected as the safety overflow. ● Disconnect the filling hose with backflush prevention (1/2") again.

1

23

Fig. 7-1

Buffer storage filling - without solar system

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Installation and maintenance manual

33

8 x Technical data 8

Technical data

Type

EKHHP300AA2V3

Can be used with an external heat pump unit

EKHHP500AA2V3

ERWQ02AV3

Dimensions and weights

Unit

Dimensions (H x W x D)

cm

1775 x 59.5 x 61.5

1775 x 79 x 79

Tilt dimension

cm

1900

2050

Empty weight

kg

70

80

Storage tank Maximum permissible storage water temperature

°C

85

Total storage capacity

litres

294

477

Domestic water heat Water capacity heat exchanger exchanger (stainless Maximum operating pressure PMW steel 1.4404) Domestic water heat exchanger surface

litres

28

29

Pressurised solar heat exchanger (stainless steel 1.4404)

litres



12.5

m2



1.7

Hot water quantity without re-heating at a draw-off rate of 12 l/min (TS=50°C)

litres

150 2)

310 2)

Hot water quantity without re-heating at a flow rate of 12 l/min (TS=65°C)

litres

320 2)

564 2)

210

350

Thermal performance data1)

Water capacity heat exchanger Heat exchanger surface area

6

m2

6

Re-heating time of an entire storage tank volume (TS=50°C): Just heat pump:

min

Heat pump + Booster Heater: Cold and hot water Pipe connections

bar

120

inches inches

Solar connections

inches

190 1" AG 1" IG



3/4" IG / + 1" AG

Refrigerant circuit Number of circuits Storage tank charging heat exchanger (stainless steel 1.4404)



1

litres

1.01

m2

2.5



2

Type



Flanged connection

External Ø

inches

1/4" AG

Type



Flanged connection

External Ø

inches

3/8" AG

°C

40 to 55 / 75

Volume Heat exchanger surface area Number

Pipe connections

Liquid line Gas lines

Operating data Operating range

Hot water generation without / with Booster Heater (min/max)

Ambient temperature in erection room Heating output

°C

2 - 35

Just heat pump (TA = 7°C / TS = 10 - 55°C)

kW

2.2

Just Booster Heater (BOH)

kW

2

Installation and maintenance manual

34

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

8 x Technical data Type

EKHHP300AA2V3

EKHHP500AA2V3

Electrical data Protection type Voltage supplyEKHHP

Mains connection 3) 1)

— Phases



1

Voltage

V

230

Voltage range

V

Voltage ±10%

Frequency

Hz

50

Exterior heat pump unit for EKHHP



4G

Booster heater (BOH)



3G (1 phase)

TCW Cold water input temperature = 10°C TDHW Hot water draw-off temperature = 40°C TS Storage target temperature (charge state before drawing off)

Tab. 8-1 Basic data DAIKIN EKHHP

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

IP 21

2) 3)

Hot water storage tank only to be charged using a heat pump (without Booster Heater). Number of individual wires in the connection cable, including protective earth. The cross-section of the individual lines is dependent on the current load, the length of the connection cable and the respective legal provisions.

Installation and maintenance manual

35

Installation and maintenance manual

36

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Installation and maintenance manual

37

Installation and maintenance manual

38

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

DAIKIN EKHHP(3/5)00AA2V3 DAIKIN Hot water heat pump 008.1423444_02 – 09/2015

Installation and maintenance manual

39

Copyright © Daikin 008.1423444_02

09/2015

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Installation and maintenance manual

Installation and maintenance manual Hot water heat pump Installation and maintenance manual Hot water heat pump EKHHP300AA2V3 EKHHP500AA2V3 English...

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