Download Viessmann WB1B Series Technical data

Connections
Vitodens 100-W, WB1B Installation & Service
Installation Examples
(continued)
Wiring diagram for system layout 4
To boiler/burner
control unit GC1
ROOM THERMOSTAT
RT
DHW
Vitotronic 050, Model HK1M
Digital Indoor/ Outdoor
Heating Circuit Control Unit
& Power Pump Module Vi.PN
7134627 See Installation
Instruction specific to each
control
1PH
Power Pump Module
Honeywell Aquastat L4008A1031
Vi.PN. 9560985 for DHW Control
LOW TEMP HEATING CIRCUIT PUMP
USED WITH MIXING VALVE
1PH
TANK AQUASTAT
HONEYWELL SWITCHING
RELAY RA889A-1001
(OPTIONAL)
Honeywell Switching
Relay RA889A-1001
for heating circuit E
(OPTIONAL)
120 VAC/
1PH
DOMESTIC HOT
WATER PUMP
HIGH TEMP HEATING CIRCUIT PUMP
24V Field Wiring
120V Field Wiring
Factory Wiring
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
o4 )
and NO PRIORITY over Heating Circuit F (mixing
valve)
42
5600 332 -06
4 If no priority is required for DHW demand, supply
power to terminals L1, L2 of RA889A relay of heating
circuit EB