Wolf CGB-2 Series Installation Instructions For Contractors page 27
Wall mounted gas condensing boiler/gas condensing combi boiler
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Also See for CGB-2 Series:
- Service instructions manual (28 pages) ,
- Instructions manual (28 pages)
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Removing the front casing
Removing the HCM-2
casing cover
Control unit component overview
3064810_201804
15. Electrical connection
See chapter "Casing".
Burner control unit
Netz
L1
Fig: Control unit component overview
GBC-e
HCM-2 control unit
Z1
ZHP
A1
LP
E1
E2
AF
SF
eBUS
L1
L1
N
L1
a b
a b
1 2
1 2
+
N
L1
1 2
1 2
1 2
1 2
1 2
-
27
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Troubleshooting
