66
Temperature sensors, type Pt500A
420
400
440
460
480
500
520
540
560
580
600
-40 -30 -20 -10 0
10 20 30 40
Outside temperature in °C
Resistance
in Ω
Fig. 38
Checking MCBs/fuses
Danger
Contact with live components can lead to seri-
ous injury from electric current.
Before working on the appliance, ensure that
the power circuit is at zero volt
.
Removing fuses/MCBs does
not switch the
power circuit to zero volt
.
For fuses in the front wiring chamber, see page 32 and
page 31.
■
Power circuit MCB/fuse, compressor 1 and 2 (see
separate connection and wiring diagram):
Subject to heat pump/compressor output, see chap-
ter "Specification".
■
Power circuit MCB/fuse, system components (see
separate "Connection and wiring diagram"):
16 A
■
MCB/fuse, control circuit (see separate connection
and wiring diagram):
6.0 A (slow), 250 V~
MCB/fuse in the top wiring chamber, see page 39.
■
MCB/fuse F3 on main PCB:
6.3 A (slow), 250 V~
Max. power loss
≤
2.5 W
Repairs
Checking sensors
(cont.)
5787 232 GB
Maintenance
Содержание BW 301.C090
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