Daikin EKHHP300AA2V3, EKHHP500AA2V3 Operation manuals
Installation and operating
instructions
Hot water heat pump
(indoor unit)
Installation and operating instructions
Hot water heat pump
(indoor unit)
English
EKHHP300A*2V3
EKHHP500A*2V3
List of contents
1 Particular instructions for safe operation . 3
1.1 Particular safety instructions . . . . . . . . . . . . . . . 3
1.2 Observing instructions . . . . . . . . . . . . . . . . . . . . 3
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Warning signs and explanation of symbols . . . . 4
2.1.1 Meaning of the warnings. . . . . . . . . . . . . . . . . . . . .4
2.1.2 Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2.1.3 Handling instructions. . . . . . . . . . . . . . . . . . . . . . . .4
2.2 Avoid danger . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Instructions for operating safety. . . . . . . . . . . . . 5
2.4.1 Before working on the hydraulic system . . . . . . . . .5
2.4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . .5
2.4.3 Working on cooling systems (heat pump). . . . . . . .5
2.4.4 Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.4.5 Sanitary connection. . . . . . . . . . . . . . . . . . . . . . . . .6
2.4.6 Requirements for the depressurised storage tank
water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.4.7 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.4.8 Instructing the user/owner. . . . . . . . . . . . . . . . . . . .6
3 Product description. . . . . . . . . . . . . . . . . . . 7
4 Set-up and installation . . . . . . . . . . . . . . . . 9
4.1 Tightening torque . . . . . . . . . . . . . . . . . . . . . . . 9
4.2 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 Hydraulic connection . . . . . . . . . . . . . . . . . . . . 11
4.4.1 Optional: Connection of an external heat
generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
4.5 Laying coolant lines . . . . . . . . . . . . . . . . . . . . . 13
4.6 Pressure test and filling the coolant circuit. . . . 13
4.7 Filling the system with water . . . . . . . . . . . . . . 14
4.7.1 Filling the hot water heat exchanger . . . . . . . . . . .14
4.7.2 Filling the storage tank . . . . . . . . . . . . . . . . . . . . .14
4.8 Electrical connection . . . . . . . . . . . . . . . . . . . . 14
4.8.1 Connection EKHHP on heat pump external unit,
mains connection Booster-Heater (BSH) . . . . . . .15
4.8.2 High/low tariff mains connection (HT/NT) . . . . . . .16
4.8.3 Connection EVU receiver (intelligent regulator
Smart Grid - SG) . . . . . . . . . . . . . . . . . . . . . . . . . .16
4.8.4 Optional: Connection of an external heat
generator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
7.3 Operating modes. . . . . . . . . . . . . . . . . . . . . . . 24
7.3.1 ECO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.2 AUTOMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.3 Low Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3.4 High Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.4 Setting the timer programme. . . . . . . . . . . . . . 24
7.4.1 Display switching times . . . . . . . . . . . . . . . . . . . . 25
7.4.2 Programming switching times . . . . . . . . . . . . . . . 25
7.4.3 Delete switching time . . . . . . . . . . . . . . . . . . . . . 25
7.5 Parameter settings . . . . . . . . . . . . . . . . . . . . . 26
7.5.1 Setting parameters . . . . . . . . . . . . . . . . . . . . . . . 26
7.5.2 Parameter description . . . . . . . . . . . . . . . . . . . . . 27
7.5.3 Parameter factory settings. . . . . . . . . . . . . . . . . . 29
7.5.4 Individual parameter settings. . . . . . . . . . . . . . . . 30
7.5.5 Individual switching time settings . . . . . . . . . . . . 30
8 Malfunctions and fault codes . . . . . . . . . . 31
8.1 Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.2 Fault code . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9 Service and maintenance . . . . . . . . . . . . . 34
9.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.2 Periodic Checks . . . . . . . . . . . . . . . . . . . . . . . 34
9.2.1 Filling, topping up storage tank - without installed
solar system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2.2 Filling, topping up storage tank - with optional
KFE filling connection or with installed DrainBack
solar system DrainBack . . . . . . . . . . . . . . . . . . . 35
10 Technical data . . . . . . . . . . . . . . . . . . . . . . 36
10.1 Information on the type plate. . . . . . . . . . . . . . 37
11 Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12 List of keywords . . . . . . . . . . . . . . . . . . . . 39
5 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1.1 Requirements:. . . . . . . . . . . . . . . . . . . . . . . . . . . .17
5.1.2 Start the system . . . . . . . . . . . . . . . . . . . . . . . . . .17
6 Decommissioning . . . . . . . . . . . . . . . . . . . 19
6.1 Temporary shutdown . . . . . . . . . . . . . . . . . . . . 19
6.1.1 Draining the storage tank . . . . . . . . . . . . . . . . . . .19
6.1.2 Draining the hot water circuit. . . . . . . . . . . . . . . . .20
6.2 Final shutdown. . . . . . . . . . . . . . . . . . . . . . . . . 20
7 Operation, Parameters . . . . . . . . . . . . . . . 22
7.1 Displays and function of the operating
elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.2 Basic functions. . . . . . . . . . . . . . . . . . . . . . . . . 23
7.2.1 Switching the system on and off . . . . . . . . . . . . . .23
7.2.2 Setting the clock . . . . . . . . . . . . . . . . . . . . . . . . . .23
7.2.3 Display of the current Temperature. . . . . . . . . . . .23
7.2.4 Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Installation and operating instructions
2
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
DAIKIN EKHHP
1 x Particular instructions for safe operation
1 Particular instructions for safe operation
1.1 Particular safety instructions
WARNING!
Disregarding the following safety instructions may result in serious physical injury or death.
● 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.
● Make up the power supply in accordance with IEC 60335-1, via a separator device which exhibits
contact separation in all poles with a contact opening distance that provide full disconnection in
accordance with overvoltage category III.
● All the electrical work must only be carried out by electrically qualified experts and with consideration of the local and national regulations, and the instructions in this manual.
Check that a suitable electrical circuit is being used.
Inadequate capacity of the power circuit or improperly executed connections can cause electrocution or fire.
● The customer must install a pressure relief device with rated over-pressure less than 0.6 MPa
(6 bar). The connected drain line must have a continuous gradient and a free outlet in a frost-free
environment (see chap. 2.4.1, 2.4.5 and 4.4 (fig. 4-5)).
● Water may drip out of the drain line of the pressure relief device. The drain opening must be left
free to atmosphere.
● The pressure relief device must be operated regularly in order to remove scale deposits and to
make sure it is not blocked.
● The storage tank and hot water circuit can be drained. The instructions in chap. 6.1.1 and 6.1.2
must be observed.
● All the work on the refrigerant circuit must only be carried out by refrigeration qualified experts
and with consideration of the local and national regulations, and the instructions in this manual.
● Improperly executed work on the refrigeration circuit of the heat pump can endanger life and
health of persons and can impair the function of the heat pump (see chap. 6.2).
1.2 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 see 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.
DAIKIN EKHHP
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Installation and operating instructions
3
2 x Safety
2 Safety
2.1 Warning signs and explanation of
symbols
2.1.1 Meaning of the warnings
Warnings in this manual are classified according
into their severity and probability of occurrence.
DANGER!
Draws attention to imminent danger.
Disregarding this warning can lead to serious
injury or death.
WARNING!
Indicates a potentially dangerous situation.
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.
Heat pump indoor unit
Pay attention to the stipulated tightening
torque (see chap. 4.1).
Applies only to the depressurised solar
system (DrainBack).
Applies only to the solar pressure system.
2.1.3 Handling instructions
● 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.
2.2 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 injuries or death, as well as causing material damage.
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 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
2.1.2 Validity
Some information in this manual has limited validity. The validity is highlighted by a symbol.
Exterior heat pump unit
This assumes knowledge and use of the contents of this manual, the relevant accident prevention regulations and the recognised safetyrelated and occupational medical rules.
2.3 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 Internal unit
EKHHP300A*2V3
ERWQ02AAV3
EKHHP500A*2V3
Tab. 2-1 Permissible combinations of DAIKIN EKHHP internal units and
DAIKIN heat pump external units
Installation and operating instructions
4
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
DAIKIN EKHHP
2 x Safety
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.
2.4 Instructions for operating safety
2.4.1 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.
Switch off the external main switch before
starting any work on the DAIKIN EKHHP and
secure it against unintentional switch-on.
● 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.
2.4.2 Electrical installation
● Electrical installation must be carried out only
by qualified electrical experts 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.
2.4.3 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 certifi-
cate category II
– 3 kg coolant fill quantity or over: Expert cer-
tificate 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.
● If you suspect leaks in the refrigerant circuit:
Never pump the refrigerant back into the heat
pump external unit with the internal
compressor - always extract with a suitable
recycling unit and recycle it.
● Components and spare parts must at least
satisfy the technical requirements defined by
the manufacturer.
2.4.4 Site of installation
For safe and fault-free operation, it is necessary
that the installation location of the DAIKIN
EKHHP fulfils the safety-relevant criteria described exactly in chap. 4.3.
DAIKIN EKHHP
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Installation and operating instructions
5
2 x Safety
Information on the installation site of other components can be found in the associated documentation supplied with them.
2.4.5 Sanitary connection
● You must comply with:
– EN 1717 – Protection against pollution of
potable water installations and general
requirements of devices to prevent pollution by backflow
– EN 806 – Specifications for installations
inside buildings conveying water for human
consumption
– 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 set 1") during
installation.
The domestic water quality must comply
with the EU Guideline 98/83 EC and the
regionaly-applicable regulations.
2.4.6 Requirements for the depressurised
storage tank water
Observe the current technological regulations to
prevent corrosion products and deposits.
Measures for desalination, softening or
hardness stabilisation are necessary if the filling
and top-up water have a high total hardness
(>3 mmol/l - total of the calcium and magnesium
concentrations, calculated as calcium carbonate). We recommend the use of Fernox KSK
limescale and corrosion protector. For other
properties deviating from the minimum requirements, suitable conditioning measures are necessary to maintain the required water quality.
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.
If an optional external heat generator is
connected via the corrugated pipe heat
exchanger of the EKHHP500A*2V3,
these minimum requirements also apply for the
filling and topping-up water of this heating
circuit.
2.4.7 Operation
The DAIKIN EKHHP
● Do not operate until all installation and
connection work is completed.
● Only operate 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.
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
Installation and operating instructions
6
2.4.8 Instructing the user/owner
● Before you hand over the DAIKIN EKHHP,
explain to the user/owner how to operate and
check the system.
● Provide the operator with the technical
documentation (this documentation and all its
references) and indicate that these
documents must be available in the
immediate vicinity of the unit at all times.
● Document the hand-over.
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
DAIKIN EKHHP
3 Product description
3 x Product description
DAIKIN EKHHP
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Fig. 3-1 Structure of the DAIKIN EKHHP – legend see Tab. 3-1
Installation and operating instructions
7
3 x Product description
33 Display operating mode "Hot Water Heating" active
43 Display operating mode "Start-up", "Defrost Mode" active
Brief push: Display last error code
Push for 5 sec: Enter parameter settings
47 Display of hot water temperature or oher temperature values (in combination with Items 44 / 46)
DHW
54 Key programming
1 Flow Solar or flow for additional heat source (1" female thread) 30 Key "On / Off"
2 Cold water connection (1“ male thread) 31 Operating Display LED
3 Hot water (1“ male thread)* 32 Display operating mode "Low Noise Mode" active
Item Name (EKHHP) Item Name (Controller)
Installation and operating instructions
4 Flow Solar or for additional heat source (3/4" female thread + 1“ male thread) (only
8
EKHHP500A*2V3)
5 Return Solar for additional heat source (3/4" female thread + 1“ male thread) (only EKHHP500A*2V3) 34 Display of sensor number (see Tab. 7.1)
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
ator
(only EKHHP500A*2V3)
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 (BSH) switched on
13 Heat exchanger (stainless steel) for storage tank charging by hot water heat pump (liquifier) 42 Display external signal (HT/NT / Smart Grid)
14 Heat exchanger (stainless steel) for storage tank charging by pressurised solar or alternative heat gener-
20 Pressure-free storage tank water 48 Display "Function not available"
23 Connection safety overflow 49 Display parameter setting mode active
24 Mount for handle 50 Display service technician required
25 Silencer hood 51 Display Parameter code or Fault code
26 Type plate 52 Keys setting hot water temperature
15 Connection for integrated electrical Booster-Heater BSH (R 1½" female thread) 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 (BSH) 46 Display external temperature active
19 Sensor pocket for tank temperature sensor t
27 Regulator hot water heat pump 53 Key "Automatic" operating mode
outer thread 55 Key "High Output" operating mode
internal thread 56 Key activation/deactivation of timer programme
Storage tank temperature sensor 57 Key "Low Noise" operating mode
Safety devices 58 Keys Time setting
Observe tightening torque! 59 Key error code / parameter setting
nal
DHW
inter-
t
thread
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Tab. 3-1 Legend for fig. 3-1
DAIKIN EKHHP
outer
thread
4 Set-up and installation
4 x Set-up and installation
4.1 Tightening torque
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
hydraulic 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 (heating 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.
Component Thread
size
Hydraulic line connections (water) 1" 25 to 30 Nm
Liquid line connections
(Coolant)
Gas line connections
(Coolant)
Booster-Heater 1.5" max. 10 Nm
Tab. 4-1 Tightening torque
1/4" 15 to 17 Nm
3/8" 33 to 40 Nm
Tightening
torque
(hand-tight)
4.2 Scope of delivery
– DAIKIN EKHHP
– Bag of accessories (see fig. 4-1)
C (1x)
D (1x)
A (2x)
B (3x)
● 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.
A Handles (only required for
transport)
B Cover screen
Fig. 4-1 Contents of bag of accessories
C Hose connection piece for
D Spanner
safety overflow
DAIKIN EKHHP
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Installation and operating instructions
9
4 x Set-up and installation
4.3 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
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.
● Remove packing and dispose of it in an environment-friendly
manner.
● Remove the cover plates on the storage tank (fig. 4-2, item B)
and unscrew the threaded pieces (fig. 4-2, item F) from the
apertures on which the handles are to be mounted.
● Screw handles (fig. 4-2, item A) into the threaded holes that
are now free.
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.
CAUTION!
If the DAIKIN EKHHP is not erected ade-
quately 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
Fig. 4-2 Attach handles
● 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 chap. 10).
– Carefully transport the DAIKIN EKHHP, 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.
F Threaded piece
Installation and operating instructions
10
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
DAIKIN EKHHP
4 x Set-up and installation
4.4 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 chap. 2.4.5).
ONLY DAIKIN EKHHP500A*2V3
CAUTION!
If the heat exchanger for charging the pressurised solar system (see overview image on
fig. 3-1, items 4+5) has an external heating
unit (e.g. wood-burning 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.
If the installation conditions require the hydraulic
connection to be directly upwards, the cover
hood can be cut out along the broken line.
Fig. 4-4 Creating the hood cut-out
–
Pay attention to the stipulated tightening torque (see
chap. 4.1).
– 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
(e.g. VTA32).
– 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 storage tank water (see
chap. 2.4.6).
Fig. 4-3 Remove the protective
cover.
● When using circulation brakes, fit them into the pipe
connections on the DAIKIN EKHHP.
● Create hydraulic connections on the DAIKIN EKHHP (see
fig. 4-5).
– Fig. 3-1 and tab. 3-1 give the position and dimensions of
the connections.
DAIKIN EKHHP
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
Installation and operating instructions
11
4 x Set-up and installation
● Connect the drain hose to the connector for the safety
overflow (fig. 4-6 to fig. 3-1, item 23).
– Use transparent drain hose (draining water must be visi-
ble).
– Connect the drain hose to an adequately dimensioned
waste water installation.
– Drain should not be lockable.
Fig. 4-5 Hydraulic connection - legend see tab. 4-2
(Example EKHHP500A*2V3 with Solar and optional external heat generator)
1 Cold water connection
2 Hot water distribution network
3 Feed Solar or for other heat source*
4 Return Solar or for other heat source*
6 Circulation
7 Customer's side: Check valve, return valve
7a Circulation brakes (2 in number) Recommended accessory
8a Feed Solar or for other heat source*
8b Return Solar or for other heat source*
9 Gas line (refrigerant)
10 Liquid line (refrigerant)
CW Cold water
DHW
Hot water
EKHHP
DAIKIN heat pump internal 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 temperature measurement
PKBoiler circulation pump*
PZCirculation pump*
SK Solar panel field*
SV Customer's side: Safety over-pressure valve
WEXExternal heat generator*
Fig. 4-6 Installation of drain hose at safety overflow
4.4.1 Optional: Connection of an external heat
generator
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) DAIKIN EKHHP: unpressurised via connections
(solar infeed and solar return) of the hot water tank
or
b) Only EKHHP500A*2V3: via the integrated
pressurised solar heat exchanger.
– Fig. 3-1 and tab. 3-1 give the position and dimensions of
the connections.
– Carry out hydraulic system incorporation in accordance
with fig. 4-5.
–
Pay attention to the stipulated tightening torque (see
chap. 4.1).
– Design the lines as such that the sound attenuation cowl
can be applied without any problem following assembly.
* Optional
Tab. 4-2 Legend for fig. 4-5
● Carefully insulate pipe lines against heat loss and so as to
avoid the formation of condensation (insulation thickness at
least 20 mm).
Installation and operating instructions
12
DAIKIN Hot water heat pump
008.1423499_07 – 06/2019 – EN
DAIKIN EKHHP
Loading...