Wolf CGB-2-24 - Flue Gas Damper;Ventilation Air Damper Electrical Connection

32 3064810_201804
16 Fluegasdamper/ventilationair
damper electrical connection
HCM-2 electrical connection
Limit switchFlue gas damper motor/venti-
lation air damper motor
Pleasenote:
Thelimitswitchfortheuegas
damper/ventilation air damper
must be potential-free.
Otherwise the HCM-2 control unit
PCB will be destroyed.
Damperfunctiontest
• Start the appliance
• Inspect visually to ensure damper is open
• Unplug E1 for 2 minutes during operation.
Boiler must lockout with fault code 8, with the fan continuing to run at low speed.
• Reconnect E1
• Acknowledge fault message
• Inspectvisuallytoensureuegasdamperisclosed
Note:
The contractor parameter
HG13 (input 1) must be set to
Fl.gasdamper
and
HG14 (output 1) must be set to
Fl.gasdamper.
When the limit switch is open, the burner
is blocked both for DHW and central heat-
ing as well as for emissions test and frost
protection.
gn/ge
M
230V~
br
bl
A1
N
L1
L1
LP
N
SF
1
2
AF
E1
eBUS
+
-
1
2
a
b
E2
a
b
12
12
12
12
12
E1(programmableinput,e.g.uegasdamper)
A1 (programmable output)
Fluegasdamper/ventilationairdamperelectrical
connection
- Isolate the system from the power supply before opening.
- Check that the appliance is isolated from the power supply.
- Swivel the front panel to one side.
- Remove the front casing.
- Open the lower casing cover of the HCM-2.
- Remove the insert from the HCM-2 casing.
- Strip approx. 70 mm of insulation from the connecting cable
of the damper motor and signal contact.
- Pull the Rast5 plug out from output A1.
- Pushtheconnectingcableoftheuegasdamper/ventilation
air damper motor through the strain relief (insert) and secure.
- Terminate the cores at the Rast5 plug A1 and insert the plug.
- Pull the Rast5 plug out from input E1.
- Pushthelimitswitchleadoftheuegasdamper/ventilation
air damper motor through the strain relief (insert) and secure.
- Terminate the cores at the Rast5 plug E1 and insert the plug.