Honeywell SmartValve SV9540 Installation Instructions Manual page 8

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