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7 - MAINTENANCE AND
TROUBLESHOOTING
In order to maintain effi ciency and improve durability it
is advised that an annual maintenance check be carried
out by a qualifi ed professional.
• Any work on the domestic hot water
heat pump must be carried out by a
qualifi ed professional.
• Observe all health and safety rules!
• Any work on the refrigerant circuit must be
carried out by a qualifi ed professional with a
Category 1 certifi cate of aptitude.
• The release of refrigerant fl uid into the
atmosphere is forbidden.
• The refrigerant must be collected before any
work is carried out on the circuit.
• Switch off the domestic hot water heat pump
before opening it.
• Wait for the fan to come to a complete stop
before carrying out any work.
• Do not get water on any of the electrical
parts.
• The pressure limiting device must be
operated regularly to eliminate limescale
and to check for blockages.
In case of maintenance or if taking the domestic hot water
heat pump out of service, please respect the environmental
protection regulations regarding recovery, recycling and disposal
of consumables and components.
The R290 refrigerant in the heat pump
circuit poses no risk to the environment,
but it is fl ammable.
→ The R290 refrigerant is odourless,
→ do not damage the pipes in the refrigerant
circuit,
→ do not handle a fl ame or any other fl ammable
source on the inside of the appliance.
→ If the refrigerant is leaking, unplug the
appliance, air out the room, and contact
customer service.
→ Do not use any mechanical means to speed up
defrosting.
→Do not pierce or burn the appliance: in case
of intervention on the refrigerant circuit, the
refrigerant must be recovered.
→ The refrigerant circuit containing fl ammable
refrigerant fl uid complies with national gas
regulations.
24
DOMESTIC HOT WATER HEAT PUMP 200L & 270L
-
INSTALLER
.../...
→ In case of intervention on the
refrigerant circuit:
1) Secure the area you will be working in.
2) Inform people of the potential danger involved
in the work being carried out.
3) Check that the risk of infl ammation is
minimised.
4) Avoid working in a confi ned space; the area
must be suffi ciently ventilated.
5) Check the area with an appropriate leak
detector before and during the work.
6) Place a CO
extinguisher near the work area.
7) Do not smoke.
7.1 - Water circuit
It is MANDATORY to read the additional
document concerning the quality of
water used for fi lling the installation.This
document is included with this manual as well
as in the packet with the warranty information.
This document also contains information which is
PERTINENT to the WARRANTY of the material.
The pressure-relief valve should be activated regularly so as to eliminate
limescale and check for blockages.
Inspect the domestic hot water heat pump's hydraulic
connections to ensure that they are all watertight.
7.2 - Water circuit for return fl ow from
underfl oor heating
The control of the water circuits is limited to the inspection of
the fi lters and stopping up of any eventual leaks. Clean or replace
clogged fi lters.
7.3 - Electrical maintenance
It is mandatory to periodically inspect for cleanliness and the
absence of dust deposits on the eletrical power board and the
electrical connection terminals:
• of the compressor;
• of the electrical resistance;
Also check the lug connections to ensure proper tightness. The
frequency of inspection must be adapted according to the air
quality: a dusty environment requires more frequent inspection, at
minimum once per year.
• Check that the wiring is not subject to wear, corrosion, excessive
pressure, vibration, contact with sharp edges or any other adverse
.../...
eff ects due to its environment.
• Maintenance must also take into account the eff ects of long-term
continuous vibration from components such as compressor and fan
or dry powder
2
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MANUAL
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Troubleshooting
