105
Temperature sensors type Ni500
400
-40 -20
0
Resistance in
Temperature in °C
440
480
520
560
600
20 40 60
640
Temperature sensors, type Pt500
460
20
540
100
Resistance in
Temperature in °C
60
140 180
620
700
780
860
-20
Checking MCB/fuses
MCB/fuses in the front wiring chamber,
see page: 54
■ Power circuit MCB/fuse
Compressor 1 and 2 (separate "Con-
nection and wiring diagram" sheet 11/
sheet 12 "11F2"/"12F2"):
Subject to heat pump/compressor out-
put, see chapter "Specification"
■ MCB/fuse, power circuit, system com-
ponents (see separate "Connection
and wiring diagram" sheet 13 "13F2")
16 A
■ MCB/fuse, control circuit (see sepa-
rate "Connection and wiring diagram"
sheet 13 "13F6"):
6.0 A (slow), 250 V~
MCB/fuse in the top wiring chamber, see
page: 64
■ MCB/fuse F3 on main PCB:
6.3 A (slow), 250 V~
Max. power loss ≤ 2.5 W
Danger
Contact with 'live' components
can lead to serious injury from
electric current.
Before working on the equip-
ment, always ensure that
the
power circuit is also at zero
volt.
Removing fuses does
not switch
the power circuit to zero volt
.
Troubleshooting
Repairs
(cont.)
5848 164 GB
Service
Содержание BW 301.A090
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