
SV9440, SV9540, AND SV9640 SMARTVALVE™ SYSTEM CONTROLS
9
69-1227—02
Fig. 11. Typical boiler wiring diagram.
C1
C2
C3
L1
L2
24 VAC
M12398D
AIR PROVING
SWITCH
AQUASTAT®
CONTROL
NEUTRAL
HOT
ROLLOUT
SWITCH
LIMIT
SWITCH
COMBUSTION
AIR BLOWER
AIR
DATA
R
24V THERMOSTAT
C
R8285D CONTROL CENTER
Q3450
IGNITER-
SENSOR
SV9440
SV9540
SV9640
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
CONNECT THE 120V (HOT) LEAD AS SHOWN.
DATA AND R LINES MUST BE CONNECTED TO AQUASTAT CONTROL FOR PROPER
SYSTEM OPERATION.
IN THIS APPLICATION, POSTPURGE FUNCTION IS NOT AVAILABLE AND THE LED
FUNCTIONS ONLY DURING A CALL FOR HEAT.
1
2
3
4
4
CIRCULATOR
R
C
G
Y
W
1
3
4
6
L2
L1
(HOT)
1
2
3
TO 120 VAC, 60 HZ
POWER SUPPLY
1
1
5
6
7
8
1
2
2
2
3
3
3
4
4
4