INSTALLATION INSTRUCTIONS
69-1059-01
SV9540; SV9640
SmartValve™ System Controls
APPLICATION
The SV9540; SV9640 SmartValve™ System Controls
combine gas flow control and electronic intermittent
pilot sequencing functions into a single unit. The low
voltage igniter, flame sensor and pilot burner are
supplied by the Q3450 or Q3480 Pilot Hardware.
Provides all gas ignition safety functions by controlling
gas flow, ignition source, and a 120 Vac or 240 Vac
combustion air blower. The control also monitors the
appliance airflow proving switch and limit string to
assure proper appliance operation. Provides prepurge,
postpurge, timed trial for pilot igniton, with 100 percent
shutoff and continuous retry. Diagnostic LED indicates
system status.
This control communicates directly with the ST9160
Electronic Fan Timer (EFT) in typical forced warm air
furnace applications. It also interfaces with the 208907
Terminal Board, providing compatibility with power
stealing thermostats. Or, it directly interfaces with the
appropriate power supplies and a system thermostat for
additional appliance applications. When controlled
directly by a thermostat, the control does not provide a
postpurge function, as power to the control is removed
when the thermostat call for heat ends.
The SV9540; SV9640 system is suitable for a wide range
of fan assisted combustion gas-fired appliances
including furnaces, rooftop furnaces, boilers, unit
heaters, infrared heaters, water heaters and commercial
cooking appli-ances. The specific application of the
SmartValve System is the responsibility of the appliance
manufacturer. See Table 1 for temperature ranges and
regulator types.
SPECIFICATIONS
CAUTION
The SV9540; SV9640 provide direct replacement
only. Use the Y8610 to convert standing pilot
systems to electronic ignition systems.
Body Pattern:
SV9540: Straight through with 1/2 in. inlet and 1/2 in.
outlet; or 1/2 in. NPT inlet and 1/2 in. inverted flare
outlet.
SV9640: Straight through with 1/2 in. inlet and 1/2 in.
outlet, 1/2 in. inlet and 3/4 in. outlet, or 3/4 in. inlet
and 3/4 in. outlet.
Electrical Ratings:
System Transformer:
SV9540: 40 VA minimum NEMA rated.
SV9640: 40 VA minimum NEMA rated.
NOTE:
Larger system transformer may be required for
specific applications.
Voltage and Frequency:
24 Vac, 60 Hz; 50 Hz models available.
Output Ratings:
Igniter Load: 1.5A maximum.
Induced Draft Motor Load: 2.5A Full Load, 10A
Locked Rotor at 120 Vac; 1.75A Full Load, 5A
Locked Rotor at 240 Vac.
Current at 24 Vac:
24V Thermostat: See Table 2.
Table 1. Model Number Suffix Letter Designation.
Model No.
Suffix
Letter
Ambient
Temperature
Range
Pressure
Regulator Type
H
0°F to 175°F
(-18°C to +79°C)
Slow-opening
M
-40°F to 175°F
(-40°C to +79°C)
Standard
P
40°F to175°F
(-40°C to +79°C)
Step-opening