Phase 3 TR Series - Water Heater Start-Up - Thermostat Adjustment; Adjusting the Water Heater Thermostat

Phase III
®
19
Installation - Wiring
T
T
1
4
3
5
6
Circulator
Zone 1
Thermostat
zone 1
Honeywell
R845A
Circulator
Relay
120
H
VA C
N
2
T
T
1
4
3
6
Circulator
Zone 2
Circulator
Zone 3
Thermostat
zone 2
Thermostat
zone 3
5
2
T
T
1
4
3
6
5
High Voltage
Low Voltage
To Boiler 24 VAC
Thermostat Leads
2
ON
PRIORITY
ZONING CIRCULATOR
CIRC
ON
PR-IN PR-OUT
LIVE
NEUT
1234
2
1
C
Water Heater
Thermostat Snap Set
Priority Zone
Circulator
Note: Maximum of 4 total circulator
zone when wiring 1 zone for priority.
Fig. 18:
Priority Zone Circulator Wiring