69
Figure 45B: Modied Wiring For DHW Priority When Using Low Flow Circulator Piped Off System Header -
Heating (with Central Heating Zone Valves) Plus Alternately Piped Indirect Water Heater
N
L1
2
3
1
3
2
1
3
2
X1
X2
X3
X4
TACO ZONE VALVES
(SEE NOTE)
HONEYWELL V8043E
ZONE VALVES
X3
X4
X2
X1
YE
RD
RD
YE
YE YE
RD
YE
YE
RD
RD
X2
X1
X3
X4
3
1
22
4
2
3
4
2
1
2
3
4
1
2
X1
X2
X3
X4
1
2
3
4
5
2
54
1
3
2
4 5
1
3
2 WIRE (24V) THERMOSTATS
W/ HEAT ANTICIPATOR SET
AT 0.9 AMPS (40VA REQ'D
FOR EVERY 6 ZONE VALVES)
FLAIR "VJ"
ZONE VALVES
(SEE NOTE)
TO SAGE2
HEATING T-STAT
POWER
SUPPLY
120/60/1
FIELD INSTALLED
40VA TRANSFORMER
(SEE NOTE)
2 WIRE (24V) THERMOSTATS
W/ HEAT ANTICIPATOR SET
AT 0.9 AMPS (40VA REQ'D
FOR EVERY 3 ZONE VALVES)
2 WIRE (24V) THERMOSTATS
W/ HEAT ANTICIPATOR SET
AT 0.5 AMPS (40VA REQ'D
FOR EVERY 4 ZONE V
ALVES)
2 WIRE (24V) THERMOSTATS
W/ HEAT ANTICIPATOR SET
AT 0.3 AMPS (40VA REQ'D
FOR EVERY 4 ZONE VALVES)
WHITE ROGERS
#1361-102
ZONE VALVES
CHECK FOR CROSS-PHASING BETWEEN BOILER TRANSFORMER AND FIELD SUPPLIED
TRANSFORMER ON TACO AND FLAIR ZONE VALVE CIRCUITS. IF CROSS-PHASING OCCURS,
CORRECT BY SWITCHING X1 AND X2 OR X3 AND X4. ALSO, BOILER SECONDARY SIDE (24V) IS
NOTE:
GROUNDED ON EI AND CANADIAN MODELS AND THE ZONE CIRCUIT MAY NOT OPERATE IF A
SEPARATE GROUND IS MADE IN THE ZONE CIRCUIT.
VIII. Electrical (continued)
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