Burnham ALPINE - Page 60

60
Figure 37B: Modied 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 VALVES)
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 C ROSS-PHASING BETWEEN BOI L ER TRANSFORMER AND FIELD SUPPLIED
TRANSFORMER ON TACO AND FLAIR ZONE VALVE CIRCUITS. IF CROSS-PHASING OCCURS, CORRECT BY SW I TCHING 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)