42
5600 332 v1.3
Vitodens 100-W, WB1B Installation & Service
Installation Examples
(continued)
Connections
Wiring diagram for system layout 4
1 Power Supply. Provide disconnect means and overload
protection as required
2 The heating circuit pump logic output of Vitotronic
050 is used to energize the TT output of PPM.
Therefor using a room thermostat in series with RT
input of the boiler will reduce unnecessary calls
initiated by pump logic output of the Vitotronic to the
Vitodens 100 boiler
3 DHW has priority over heating circuit
E
(see also 4 )
and NO PRIORITY over Heating Circuit
F
(mixing
valve)
4 If no priority is required for DHW demand, supply
power to terminals L1, L2 of RA889A relay of heating
circuit
E
B
1 P
1 P
1 P
2 The heating circuit pump logic output of Vitotronic
protection as required
2 The heating circuit pump logic output of Vitotronic
2 The heating circuit pump logic output of Vitotronic
3 DHW has priority over heating circuit
3 DHW has priority over heating circuit
3 DHW has priority over heating circuit
(see also 4 )
(see also 4 )
(see also 4 )
4 If no priority is required for DHW demand, supply
4 If no priority is required for DHW demand, supply
4 If no priority is required for DHW demand, supply
120 VAC/
1PH
To boiler/burner
control unit GC111
Honeywell Aquastat L4008A1031
Vi.PN. 9560985 for DHW Control
TANK AQUASTAT
(OPTIONAL)
DOMESTIC HOT
WATER PUMP
HONEYWELL SWITCHING
RELAY RA889A-1001
Power Pump Module
ROOM THERMOSTAT
LOW TEMP HEATING CIRCUIT PUMP
USED WITH MIXING VALVE
(OPTIONAL)
Vitotronic 050, Model HK1M
Digital Indoor/ Outdoor
Heating Circuit Control Unit
& Power Pump Module Vi.PN
7134627 See Installation
Instruction specific to each
control
Honeywell Switching
Relay RA889A-1001
for heating circuit
E
HIGH TEMP HEATING CIRCUIT PUMP
24V Field Wiring
120V Field Wiring
Factory Wiring
1PH
1PH
RT
DHW
