2
T
T
1
4
3
5
6
Circulator
Zone 1
Thermostat
zone 1
Honeywell
R845A
Relay
120
H
VAC
N
2
T
T
1
4
3
6
Circulator
Zone 2
Thermostat
zone 2
5
2
T
T
1
4
3
6
Water
Heater
Circulator
Water Heater
Thermostat
Snap-Set
5
1
2
C
Boiler
Thermostat
Terminals
Priority Relay
20
Typical Circulator Zoning
with Domestic Priority
2
T
T
1
4
3
5
6
Circulator
Zone 1
Thermostat
zone 1
Honeywell
R845A
Relay
120
H
VAC
N
2
T
T
1
4
3
6
Circulator
Zone 2
Thermostat
zone 2
5
2
T
T
1
4
3
6
Water
Heater
Circulator
Water Heater
Thermostat
Snap-Set
5
1
2
C
High Voltage
Low Voltage
Boiler
Thermostat
Terminals
Typical Circulator Zoning
without Domestic Priority
Fig. 18:
Fig. 19:
Installation - Wiring