Glow-worm Clearly Heat Pumps 5kW - Manual (Page 26)

0020096879_01 - 06/10 - Glow-worm
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MAINTENANCE
b
IMPORTANT: any action carried out on the
refrigerant circuit must be performed by
qualified authorised personnel.
The refrigerant fluid contains gases that, when released into the
atmosphere, may affect the environment by depleting the ozone
layer, contributing to the greenhouse effect and an increase
in temperature. The risk of leakage cannot be excluded for
devices intended to operate for many years and subject to the
effects of the environment.
• See the "Safety instructions" chapter for a list of operations
to be performed prior to the maintenance of the application.
• Once the maintenance operations have been completed,
consult the ¨Start Up¨ chapter to restart the appliance.
16.1 Annual Maintenance
• Check the proper functioning of safety devices.
• Check the pressure of the water system.
• Check the airtightness of the cooling circuit.
• Check that there are no traces of rust or oil around the
cooling circuit’s components.
• Ensure that the appliance’s components are neither worn nor
broken.
• Check that the wires are firmly attached to the electrical
terminals.
• Check the appliance’s grounding.
• Check the starting temperature of the heat pump and the
adjustment points.
• Check the absence of ice in the compressor.
• Remove any dust from the power supply.
• Clean the air / refrigerant battery and make sure that air
circulates between the fins and around the unit.
• Check that the fan rotates freely.
• Check the pressure of the expansion vessel.
16.2 Draining
• Cut off the appliance’s electricity supply.
1
2
Key
1 Hydraulic circuit venting valve
2 Draining hose
Draining the hydraulic circuit
• Engage a hose (2) to the venting valve (1) or place a container
under the venting valve (1) to drain the hydraulic circuit.
• Open the venting valve (1) with an Ø 14 mm wrench.
Draining the appliance
• Close the shut-off valves located behind the heat pump.
• Engage a hose (2) to the venting valve (1) or place a container
under the venting valve (1) to drain the hydraulic circuit.
• Open the venting valve (1) with an Ø 14 mm wrench.
17 Replacement of Parts
• Do not use reconditioned or copy parts, only use original
parts supplied by Glow-worm.
• If a part is required, contact the Glow-worm service organisation.
• Please quote the name and serial number of the appliance,
this information will be on the data plate on the side of the
appliance.
• If in doubt seek advice from the local gas company or
Glowworm’s own service organisation.
a
Replacement of parts must be carried out by a
competent person approved at the time by the
Health and Safety Executive.
17.2.1 Mains supply cable
e The main supply cable must be replaced by a
qualified and competent electrician.
• If the main supply cable is damaged, replace it refering to the
chapter "Electrical connection".
18 Spare parts
In order to guarantee the safe and prolonged life of the product,
manufacturers genuine spare parts must be used.
i This appliance displays a CE Mark of conformity. Only
use the manufacturer’s genuine, new spare parts.
• Ensure that spare parts are correctly mounted in the right
position and direction. After fitting any spare part or servicing,
the appliance must be tested for its safe operation.