184
0 1 2 3
0
1
2
3
4
5
MPa
Voltage in V
0 10 20 30
bar
Pressure
A
B
Fig. 123
A
Low pressure sensor
B
High pressure sensor
Checking the fuses
The fuses are located next to the VCMU refrigerant cir-
cuit controller: See page 163.
Fuse type:
■
6.3 A H (slow), 250 V~
■
Max. power loss ≤ 2.5 W
Danger
Removing fuses does not switch the power
circuit to zero volt. Contact with live compo-
nents can lead to serious injury from electric cur-
rent.
Before working on the equipment, always
ensure that the power circuit is also at zero
volt.
1. Switch off the power supply.
2. Remove right-hand side panel of the outdoor unit.
3. Check the fuse. Replace if required.
Danger
Incorrect or improperly fitted fuses can lead
to an increased risk of fire.
■
Insert fuses without using any force. Posi-
tion fuses correctly.
■
Only use structurally identical types with
the same response characteristics.
Outdoor unit maintenance
Checking the pressure sensors
6222080
Maintenance
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