Switching OFF the main fuse/MCB and the system ON/OFF
switch
Danger
Touching 'live' components can result in the transfer of dangerous body
currents.
Isolate the unit from the power supply, check that it is no longer 'live' and
safeguard against unauthorised reconnection.
Checking the refrigerant circuit for leaks
Danger
An escape of R 407C in sealed
rooms and in hollows can
result in suffocation due to its
air displacing characteristics.
Prevent the unregulated
escape of R 407C in sealed
rooms; ensure adequate venti-
lation.
Always observe all relevant
regulations and directives
regarding the handling of
refrigerant.
Danger
Touching components of the
refrigerant circuit can cause
burns or frostbite.
Touch these components only
with protective gloves.
Check the interior of the equipment
with a refrigerant leak detector or leak
detection spray for refrigerant leaks.
1.
Remove the front panel.
2.
Check the floor area, valves and all
visible solder joints for traces of oil.
3.
Check the thermal insulation of the
refrigerant circuit.
4.
Record the implementation of the
work in the service report from
page 39.
Further work on the refrigeration cir-
cuit must only be carried out by a qua-
lified refrigeration engineer.
Filling the system
1.
Open the shut-off valves and any
installed non-return valves.
Further details regarding the individual steps
9
Commissioning, inspection, maintenance
5692
695
GB
Summary of Contents for OC208HM
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