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Set-up and installation
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_02 – 09/2015
Installation and maintenance manual
13
2.6 Pressure test and filling the coolant circuit
● 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
Observe the information on the water connection and water
quality in accordance with section 1.5.5.
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
– 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.
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 atmos-
phere - always suction it off and recycle using a
suitable recycling device.
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.
UK only!
CAUTION!
If filling or topping up the storage tank is done by
means of the boiler filling and drain valve, a temporary
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.
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 specifica-
tions of the energy supply company.
● The
equipment covers and maintenance
opening covers
must be
re-fitted
immediately
after completion of the work.
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 oper-
ation due to self-heating. For this reason, these
lines
need to
have a
continuous use temperature of
90°C
.
● 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)
Summary of Contents for EKHHP300AA2V3
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