Wiring Diagram - Natural Gas / Propane - Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual

Wiring Diagram - Natural gas / Propane

GND
HALL
Start-up and Maintenance
PWM
GND
GND
GND
GND
GND
Start-up and Maintenance
Boiler/burner control unit
WARNING! DISCONNECT POWER
BEFORE SERVICING BOILER.
CAUTION! LABEL ALL WIRES PRIOR TO
DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE
IMPROPER AND DANGEROUS OPERATION.
VERIFY PROPER OPERATION AFTER SERVICING.
IF ANY OF THE ORIGINAL WIRE AS SUPPLIED
WITH THE APPLIANCE MUST BE REPLACED.
REPLACE WITH ITS EQUIVALENT.
Boiler/Burner Control Unit GC111
F
Main Circuit Board
D
0-10V Interface input
C
Outside Temperature Sensor (optional)
B
OpenTherm interface input
A
Ignition/Ionization
3 Boiler temperature sensor
5 To Power Pump Module
15 Flue gas temperature sensor
33 Flow switch
35 Combination gas valve
X1 Power supply 120 VAC from PPM
47 Fixed high limit switch
100 Burner fan
100A Burner fan modulation control
Fig. 81
GRY
BL
BN
GY
BK
GND
TO BOILER CONTROL BOARD
PUMP
A1 - POWER PUMP MODULE
Power Pump Module
A1 Main Circuit Board
K1 Pump Relay
X1 Interface, to Boiler/Burner Control Unit GC111
X2 Ground Conductor
X3.1 (L)-2(N) Main Power supply 120 VAC/60Hz
X3.3 (N)-4(L) Pump Output
X4.1-2 External Demand Input DHW
X4.3-4 Room Thermostat (T-T connection)
5 To GC111 boiler control board
Additional Information
Mains
79