64
Type BW 351.B
D
C
B
A
L K
H
G F E
Fig. 39
A
Transformer, EEV PCB
B
EEV PCB (refrigerant circuit controller)
C
Compressor contactors, starter control, phase
monitor
D
Cable channel
E
Compressor power supply
F
Cross connect PCB
G
Main PCB
H
Expansion PCB on the main PCB
K
Controller and sensor PCB
L
Programming unit
Type BWS 351.B
D
C
B
A
M
E
N
Fig. 40
A
Transformer, EEV PCB
B
EEV PCB (refrigerant circuit controller)
C
Compressor contactors, starter control, phase
monitor
D
Cable channel
E
Compressor power supply
M
Plug for connecting cable, heat pump stage 1
–
stage 2 230 V~
N
Plug for connecting cable, heat pump stage 1
–
stage 2, extra low voltage (ELV)
Opening the casing door
To open the casing door: See "Removing the heat
pump module" on page 70.
Maintenance
Overview of wiring chamber
5855006
Maintenance
