69-1059
8
SV9540; SV9640 SmartValve™ SYSTEM CONTROLS
C1
C2
C3
L1
L2
24 VAC
M12398
AIR PROVING
SWITCH
AQUASTAT
CONTROL
NEUTRAL
HOT
ROLL-OUT
SWITCH
LIMIT
SWITCH
COMBUSTION
AIR BLOWER
AIR
DATA
R
24V THERMOSTAT
C
R8285D CONTROL CENTER
Q3450
IGNITER-
SENSOR
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.
APPLIANCE CHASSIS MUST HAVE RELIABLE CONNECTION TO EARTH GROUND.
IN THIS APPLICATION, POSTPURGE FUNCTION IS NOT AVAILABLE AND THE LED
FUNCTIONS ONLY DURING A CALL FOR HEAT.
1
2
3
4
5
5
4
CIRCULATOR
R
C
G
Y
W
1
3
4
6
L2
L1
(HOT)
1
2
3
TO 120 VAC, 60 HZ
POWER SUPPLY
Fig. 9. SV9540; SV9640 typical wiring connections direct to the system thermostat.
Fig. 10. SV9540; SV9640 typical boiler wiring diagram.
C1
C2
C3
40 VA
TRANSFORMER
L1 L2
LOAD
COMMON
THERMOSTAT
4
5
1
2
M12172
PRESSURE
SWITCH
NEUTRAL
HOT
L2
L1
(HOT)
TO
120/240 VAC, 60 HZ
POWER SUPPLY
ROLL-OUT
SWITCH
LIMIT
SWITCH
INDUCER
BLOWER
MOTOR
R
R
W
24 VAC
Q3450
IGNITER-
SENSOR
AIR
DATA
SV9540;
SV9640
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
FOR 120 VAC INSTALLATIONS, CONNECT THE 120V (HOT)
LEAD TO L1. FOR 240 VAC INSTALLATIONS, THERE MUST
BE 120V BETWEEN L1 AND APPLIANCE CHASSIS.
APPLIANCE CHASSIS MUST HAVE A RELIABLE CONNECTION
TO EARTH GROUND.
DATA AND R LINES MUST BE CONNECTED TO W ON
THERMOSTAT FOR PROPER SYSTEM OPERATION.
THERMOSTAT MUST HAVE ZERO OFF-STATE CURRENT
DRAW. MECHANICAL SWITCH THERMOSTATS
RECOMMENDED. TRIAC SWITCH THERMOSTATS OR
POWER-STEALING THERMOSTATS ARE NOT RECOMMENDED.
IN THIS APPLICATION, POSTPURGE FUNCTION IS NOT
AVAILABLE AND THE LED FUNCTIONS ONLY DURING A
CALL FOR HEAT.
1
2
3
4
5
6
6
3
