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4
Installation Instructions
SCALE 1 :
1
Thermostat
If 2-pipe with
auxiliary electric heat
24vac
24 volt
water
valve
H
2
0 Changeover Sensor
(G100-71520306)
(closes below 60˚,
opens above 75˚)
Wiring Diagram
2-Pipe, Low Voltage Valve, H20 Changeover Sensor
R
G3
Y1
G
W1
G2
C
H20
R
V
EH
C
R
C
Generic relay board
G3
G2
G
COM
COM
LO
W
MED
HIGH