Daikin EKHHP300AA2V3 Manual

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

15
17

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
3
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
4
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) 14
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
5
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
6
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
7
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
8
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
9
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
10
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.