Daikin EKHHP300AA2V3 Manual

Installation and maintenance

manual

EKHHP300AA2V3

EKHHP500AA2V3

Hot water heat pump

Installation and maintenance manual

Hot water heat pump English

Legend for overview image on page 2

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

Installation and maintenance manual

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

Item Name (EKHHP) Item Name (Controller)

1 Flow Solar or flow for additional heat source (1" IG) 30 Key "On / Off"

2 Cold water connection (1" AG) 31 Operating Display LED

3 Hot water (1" AG)* 32 Display operating mode "Low Noise Mode" active

4 Flow Solar or for additional heat source (3/4" IG + 1" AG) (only EKHHP500AA2V3) 33 Display operating mode "Hot Water Heating" active

5 Return Solar for additional heat source (3/4" IG + 1" AG) (only EKHHP500AA2V3) 34 Display of sensor number (see tab. 5-1)

6 Connection refrigerant gas line Cu Ø 3/8" (9.5 mm) 35 Display time

7 Connection refrigerant liquid line Cu Ø 1/4" (6.4 mm) 36 Display weekday

7a Recommended accessory:non-return valves (2 pcs.) 37 Display refrigerant compressor active

9 Storage tank (polypropylene double walled jacket with PUR hard foam heat insulation) 38 Display switching timer programme switched on

10 Filling and draining connection or return Solar or return for additional heat source 39 Display active switching times

11 Mount for solar controller or handle 40 Display off status in timer programme

12 Heat exchanger (stainless steel) for domestic hot water heating 41 Display Booster Heater (BOH) switched on

13 Heat exchanger (stainless steel) for storage tank charging by Hot water heat pump (liquifier) 42 Display external signal (HT/LT/Smard Grid)

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

(only EKHHP500AA2V3)

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

15 Connection for integrated Booster Heater (R 1½" IG) 44 Display external temperature or temperature in hot water storage tank

17 Fill level indicator (tank water) 45 Display operating mode "Automatic" active

18 Integrated electrical Booster Heater (BOH) 46 Display external temperature active

19 Sensor pocket for tank temperature sensor tDHW 47 Display of hot water temperature or other temperature values (in combination with items 44 / 46)

20 Pressure-free storage tank water 48 Display "Function not available"

23 Safety overflow connection 49 Display parameter setting mode active

24 Mount for handle 50 Display service technician required

25 Cover 51 Display Parameter code or Fault code

26 Type plate 52 Keys setting hot water temperature

27 Control Hot water heat pump 53 Key "Automatic" operating mode

54 Key programming

AG Outer thread 55 Key "High Output" operating mode

IG Internal thread 56 Key activation/deactivation of timer programme

tDHW Components 57 Key "Low Noise" operating mode

Safety devices 58 Keys Time setting

Observe tightening torque! 59 Key error code / parameter setting

Brief push: Display last error code

Push for 5 sec: Enter parameter settings

List of contents

Installation and maintenance manual

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 Observing instructions . . . . . . . . . . . . . . . . . . . .5

1.2 Warning signs and explanation of symbols . . . . 5

1.2.1 Meaning of the warnings . . . . . . . . . . . . . . . . . . . . .5

1.2.2 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

1.2.3 Handling instructions. . . . . . . . . . . . . . . . . . . . . . . .5

1.3 Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 Instructions for operating safety . . . . . . . . . . . . . 6

1.5.1 Before working on the hydraulic system . . . . . . . . .6

1.5.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . .6

1.5.3 Working on cooling systems (heat pump) . . . . . . . .7

1.5.4 Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.5.5 Sanitary connection. . . . . . . . . . . . . . . . . . . . . . . . .7

1.5.6 Requirements for the buffer tank water. . . . . . . . . .7

1.5.7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1.5.8 Instructing the user/owner. . . . . . . . . . . . . . . . . . . .8

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

2.1 Tightening torque . . . . . . . . . . . . . . . . . . . . . . . 9

2.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . 9

2.3 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.4 Hydraulic connection . . . . . . . . . . . . . . . . . . . . 10

2.4.1 Optional: External heat generator installation . . . .12

2.5 Laying coolant lines . . . . . . . . . . . . . . . . . . . . .12

2.6 Pressure test and filling the coolant circuit. . . . 13

2.7 Filling the system with water . . . . . . . . . . . . . . 13

2.8 Electrical connection . . . . . . . . . . . . . . . . . . . .13

2.8.1 EKHHP on heat pump external unit, mains

connection Booster Heater (BOH) . . . . . . . . . . . .14

2.8.2 Low tariff mains connection (HT/NT). . . . . . . . . . .14

2.8.3

Connection intelligent controller (Smart Grid - SG)

2.8.4 Optional: External heat generator installation . . . .14

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

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

3.1.1 Requirements:. . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3.1.2 Start the system . . . . . . . . . . . . . . . . . . . . . . . . . .16

4 Decommissioning . . . . . . . . . . . . . . . . . . . 17

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

4.1.1 Draining the storage tank . . . . . . . . . . . . . . . . . . .17

4.1.2 Draining the hot water circuit. . . . . . . . . . . . . . . . .18

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

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

5.1 Displays and function of operating elements . . 19

5.2 Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.2.1 Switching the system on and off . . . . . . . . . . . . . .20

5.2.2 Setting the clock . . . . . . . . . . . . . . . . . . . . . . . . . .20

5.2.3 Display of the current Temperature. . . . . . . . . . . .20

5.2.4 Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

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

5.3.1 ECO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.3.2 Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.3.3 Low Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

5.3.4 High Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

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

5.4.1 Display switching times. . . . . . . . . . . . . . . . . . . . .22

5.4.2 Programming switching times . . . . . . . . . . . . . . . .22

5.4.3 Delete switching time . . . . . . . . . . . . . . . . . . . . . .22

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

5.5.1 Setting parameters . . . . . . . . . . . . . . . . . . . . . . . .23

5.5.2 Parameter description. . . . . . . . . . . . . . . . . . . . . .24

5.5.3 Factory settings of parameters . . . . . . . . . . . . . . 27

5.5.4 Individual parameter settings . . . . . . . . . . . . . . . 28

5.5.5 Individual switching time settings . . . . . . . . . . . . 28

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

6.1 Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

6.2 Fault codes . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

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

7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.2 Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . 32

7.2.1 Filling, topping up storage tank - without installed

solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

7.2.2 Filling, topping up storage tank - with optional

KFE filling connection or with installed DrainBack

solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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

1 x Safety

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

Installation and maintenance manual

1Safety

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 con-

figured at the factory. Please go through the at-

tached documents for a detailed description of op-

eration and control.

● Please read this manual carefully and

thoroughly before proceeding with the instal-

lation 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 associ-

ated 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.

Special warning signs

Some types of danger are represented by special

symbols:

1.2.2 Validity

Some information in this manual has limited va-

lidity. The validity is highlighted by a symbol.

1.2.3 Handling instructions

● Instructions on actions are shown as a list.

Actions of which the sequential order must be

maintained are numbered.

1.3 Avoid danger

The DAIKIN EKHHP is state-of-the-art and is built

to meet all recognised technical requirements.

However, improper use can lead to serious in-

juries or death, as well as causing material

damage.

DANGER!

Draws attention to imminent danger.

Disregarding this warning can lead to se-

rious injury or death.

WARNING!

Indicates a potentially dangerous situ-

ation.

Disregarding this warning may result in

serious physical injury or death.

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 partic-

ularly useful information, but not warnings

or hazards.

Electric power

Risk of burning or scalding

Risk of environmental damage

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.

Results of actions are identified with an

arrow.

Installation and maintenance manual

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

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.

1.4 Intended use

The DAIKIN EKHHP system may only be used for

the generation of hot water and only set up, con-

nected and operated in accordance with the spec-

ifications in this manual.

Only use of a suitable external unit approved by

DAIKIN is permitted. The following combinations

are permissible in this respect:

Tab. 1-1 Permissible combinations of DAIKIN

EKHHP internal units and DAIKIN heat

pump external units

Any other use outside the intended use is con-

sidered 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.

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 mainte-

nance 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.

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 ex-

perience and knowledge, if they are under

supervision or if they have been in-

structed in the safe use of the equipment

and understand the dangers arising

therefrom. Children must not play with

the equipment. Cleaning and user main-

tenance must not be carried out by

children without supervision.

External unit Internal unit

ERWQ02AAV3 EKHHP300AA2V3

EKHHP500AA2V3

1 x Safety

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

Installation and maintenance manual

1.5.3 Working on cooling systems (heat

pump)

The DAIKIN EKHHP requires fluorinated green-

house gas for its function.

● 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 atmos-

phere (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 refrig-

erant 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 compo-

nents can be found in the associated documen-

tation supplied with them.

1.5.5 Sanitary connection

● You must comply with;

– EN 1717 - Protection of domestic water from

contamination in domestic water installa-

tions 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.

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.

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 ad-

hered to and inspection work must be carried out.

For work on stationary refrigeration sys-

tems (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

The domestic water quality must comply

with the EU Guideline 98/83 EC and the

regionally-applicable regulations.

Installation and maintenance manual

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

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.

2 x Set-up and installation

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

Installation and maintenance manual

2 Set-up and installation

2.1 Tightening torque

2.2 Scope of delivery

– DAIKIN EKHHP

– Bag of accessories (see fig. 2-1)

2.3 Set-up

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.

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 recog-

nised by the relevant responsible authorities for

the specific activity. These include in particular

certified heating engineers, qualified electri-

cians 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 Handles (only required for

transport)

B Cover screen

C Hose connection piece for

safety overflow

D Spanner

Fig. 2-1 Content of bag of accessories

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 non-

hermetically 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.

A(2x)

B(3x)

C(1x)

D(1x)

Installation and maintenance manual

DAIKIN EKHHP(3/5)00AA2V3

DAIKIN Hot water heat pump

008.1423444_02 – 09/2015

2 x Set-up and installation

● 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

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.

● 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.

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).

A Handle

B Cover screen

F Threaded piece

Fig. 2-2 Attach handles

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. wood-

burning boiler) connected to it, an excessive flow tem-

perature 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.

● Remove the cover on the

DAIKIN EKHHP.

Fig. 2-3 Remove the protective

cover.

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