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19 33-00462—05
Fig. 39. Typical wiring of a spring-closed, power-open zone valve with end-switch
Fig. 40. Typical wiring of a series 20, power-open/power-closed zone valve
R
C
AUX1
AUX2
24 VAC TO
THERMOSTAT
THM04R3000
Y2
G
L
W1
W2
W3
Y1
RH
RC
R
C
24 VAC
POWER
O/B
IF ALSO CONTROLLING COOLING WITH A SEPARATE TRANSFORMER, REMOVE RH JUMPER. WIRE THE VALVE
TRANSFORMER TO RH AT EIM. VALVE TRANSFORMER C WOULD NOT WIRE TO EIM. COOLING TRANSFORMER
WIRES TO R AND C WITH R TO RC JUMPER INSTALLED.
THE WIRES THAT POWER THE VALVE ARE SHOWNON THE LEFT SIDE OF THE VALVE. THE END-SWITCH WIRES
FROM THE VALVES GO TO THE BOILER.
IF USING AN AC112-01 OR EQUIVALENT SLAB SENSOR, WIRE THAT TO ANY OF THE 4 SETS OF S TERMINALS ON
EIM AND MAKE SURE THE ISE SETTINGS MATCH THE WIRING.
1
2
3
M39209
120
VAC
BOILER
ZONE VALVE
2
1
TRANSFORMER
24
VAC
R
C
AUX1
AUX2
24 VAC TO
THERMOSTAT
THM04R3000
Y2
G
L
W1
W2
W3
Y1
RH
RC
R
C
24 VAC
POWER
O/B
IF ALSO CONTROLLING COOLING WITH A SEPARATE TRANSFORMER, REMOVE RH JUMPER. WIRE THE VALVE
TRANSFORMER TO RH AT EIM. VALVE TRANSFORMER C WOULD NOT WIRE TO EIM. COOLING TRANSFORMER
WIRES TO R AND C WITH R TO RC JUMPER INSTALLED.
IF USING AN AC112-01 OR EQUIVALENT SLAB SENSOR, WIRE THAT TO ANY OF THE 4 SETS OF S TERMINALS ON
EIM AND MAKE SURE THE ISE SETTINGS MATCH THE WIRING.
1
2
M39210
120
VAC
1
TRANSFORMER
24
VAC
NOTE: SEE FOLLOWING PAGES FOR ADDITIONAL THERMOSTAT WIRING GUIDELINES FOR OTHER SYSTEM
TYPES, SENSOR WIRING, IAQ CONTROL, AND OTHER DRY CONTACT WIRING OPTIONS.
POWER OPEN/
POWER CLOSED
ZONE VALVE
5
2
6
3
4
1
TO AUXILIARY
CIRCUIT FOR
OPERATING BOILER.
(SEE VALVE
INSTUCTIONS)