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Service and maintenance
7
Service and maintenance
7.1 General
Regular inspection and maintenance of the DAIKIN EKHHP re-
duces 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 atmos-
phere - 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 CO
-equivalent (in the case of R410A from
2
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 pre-
serve the right to guarantee, including for systems for
which there is not legal obligation to monitor imperme-
ability.
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 CO
equivalent 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 certifi-
cate 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.
-equivalent or from 10 t CO
2
2
DAIKIN EKHHP(3/5)00AA2V3
DAIKIN Hot water heat pump
008.1423444_02 – 09/2015
-
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