Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual page 32

Boiler Connections
Installation Examples
Wiring diagram for system layout 4
Honeywell Aquastat L4008A1031
Vi.PN. 9560985 for DHW Control
TANK AQUASTAT
(OPTIONAL)
120 VAC/
1PH
Fig. 29
1 Power Supply. Provide disconnect means and overload protection as required 1 Power Supply. Provide disconnect means and overload protection as required 1 Power Supply. Provide disconnect means and overload protection as required 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 T.T output of PPM. Therefor using a 2 The heating circuit pump logic output of Vitotronic 050 is used to energize the T.T output of PPM. Therefor using a 2 The heating circuit pump logic output of Vitotronic 050 is used to energize the T.T output of PPM. Therefor using a 2 The heating circuit pump logic output of Vitotronic 050 is used to energize the T.T 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)
3 DHW has priority over heating circuit 3 DHW has priority over heating circuit 3 DHW has priority over heating circuit
4 If no priority is required for DHW demand, supply power to terminals L1, L2 of RA889A relay of heating circuit EB
4 If no priority is required for DHW demand, supply power to terminals L1, L2 of RA889A relay of heating circuit 4 If no priority is required for DHW demand, supply power to terminals L1, L2 of RA889A relay of heating circuit 4 If no priority is required for DHW demand, supply power to terminals L1, L2 of RA889A relay of heating circuit
32
(continued)
Power Pump Module
DOMESTIC HOT
WATER PUMP
(see also 4 ) and NO PRIORITY over Heating Circuit (see also 4 ) and NO PRIORITY over Heating Circuit (see also 4 ) and NO PRIORITY over Heating Circuit
RT
DHW
1PH
HONEYWELL SWITCHING
RELAY RA889A-1001
ROOM THERMOSTAT
LOW TEMP HEATING CIRCUIT PUMP
USED WITH MIXING VALVE
(OPTIONAL)
HIGH TEMP HEATING CIRCUIT PUMP
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
Honeywell Switching
Relay RA889A-1001
for heating circuit E
24V Field Wiring
120V Field Wiring
Factory Wiring