Viessmann Vitocal 300-G Installation And Service Instructions Manual page 107

Further details regarding the individual steps
!
Please note
If the compressor is at a steep
angle in the heat pump module,
the introduction of lubricant
into the refrigerant circuit will
damage the equipment.
Never tilt the heat pump module more than 45°.
!
Please note
The earth conductors are con-
nected to the inside of the cas-
ing panels of the heat pump
module. Never rip off the earth
conductors when removing the
external panels.
Undo the earth conductors
before removing the casing
panels. Reconnect all earth
conductors during the assem-
bly.
1. Undo the screws on the front sec-
tion.
Checking the refrigerant circuit for leaks
1. Open the heat pump module (see
page 106).
2. Check the floor area, valves and all
visible solder joints for traces of oil.
Commissioning, inspection, maintenance
(cont.)
2. Remove the front section.
3. Pull the front section forward and
remove.
4. Check the floor area, valves and all
visible solder joints of the heat
pump for traces of oil.
Note
Traces of oil indicate a leaking
refrigerant circuit. Ask a refrigera-
tion engineer to check the heat
pump.
3. Check the heat pump interior with a
refrigerant leak detector or leak
detection spray for refrigerant
leaks.
107