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Environmental & Combustion Controls
SV9541Q2561
1/2 in. NPT x 1/2 in. NPT Two-stage Intermittent Hot Surface Pilot Ignition SmartValve™ Control with standard opening and 1.7 in. wc low / 3.2 in. wc high pressure regulator setting

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Overview
The TRADELINE® SV9541 SmartValve™ System Controls combine gas flow control and electronic intermittent pilot sequencing functions into a single unit. The Q3450 or Q3480 Pilot hardware supplies the low voltage igniter, flame sensor and pilot burner. These ignition system controls provide all gas ignition safety functions by controlling gas flow, ignition source, and a 120 Vac or 240 Vac combustion air blower. The controls also monitor the appliance airflow proving switch and limit string to assure proper appliance operation, and provide prepurge, postpurge, and timed trial for pilot ignition with 100 percent shutoff and continuous retry. A diagnostic LED indicates system status.

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Features

• These controls communicate directly with an electronic fan timer (ST9160 Electronic Fan Timer for single stage applications; ST9162 Electronic Fan Timer for two-stage applications) in typical forced warm air furnace applications.
• They also interface with the 208907 Terminal Board, providing compatibility with power stealing thermostats. Or, they directly interface with the appropriate power supplies and a system thermostat for additional appliance applications.
• When controlled directly by a thermostat, these controls do not provide a postpurge function, because power to the control is removed when the thermostat call for heat ends.
• The SV9541 Systems are 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 appliances.
Product Specifications  Back To Top
Description 1/2 in. NPT x 1/2 in. NPT Two-stage Intermittent Hot Surface Pilot Ignition SmartValve™ Control with standard opening and 1.7 in. wc low / 3.2 in. wc high pressure regulator setting
Flame Sense Two Rod
Type of Gas Natural
Ignition System Type Intermittent Hot Surface Pilot Ignition
Ignition Sequence Intermittent Pilot
Ignition Source Pilot
Ignition Trials To Lockout continuous retry
PrePurge 15 seconds
Body Pattern Straight-through
Opening Characteristics (standard, step) Standard Opening 2-stage
Control Voltage (Thermostat or other call for heat) 24 Vac, 60 Hz.
Ignition Trial Time (sec) 90 sec
Electrical Ratings 24 Vac
Frequency 60 Hz
Frequency 50 Hz
Flame Failure Response Time (sec) 1.6 sec @ 3 µA
Ambient Temperature Range (F) -40 F to +175 F
Ambient Temperature Range (C) -40 C to +79 C
Dimensions (in.) 3.2 in. wide x 4.9 in. high x 4.1 in.long
Dimensions (mm) 81 mm wide x124 mm high x 104 mm long.
Pressure Regulator Setting (psi) 1.7 in. wc low; 3.2 in. wc high
Pressure Regulator Setting (kPa) 0.42 kPa low; 0.80 kPa high
Pressure Ratings (psi) 1/2 psi
Pressure Ratings (kPa) 3.5 kPa
Inlet/Outlet Size (in.) 1/2 in. NPT x 1/2 in. NPT
Maximum Capacity (ft³/hr) 200 ft³/hr
Maximum Capacity (m³/hr) 5.7 m³/hr
Minimum Capacity (ft³/hr) 20 ft³/hr
Minimum Capacity (m³/hr) 0.6 m³/hr
Maximum Capacity at 1 in. P.D. (ft³/hr) 150 ft³/hr
Maximum Capacity at 1 in. P.D. (m³/hr) 4.2 m³/hr
Pressure Tapping 1/8 in. - NPT
Mounting 0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.
Pilot Gas Outlet Yes
Approvals, Canadian Standards Association CSA-International, Design Certified
Includes LP Conversion Kit
Tradeline Value Super Tradeline

Literature and other Resources Download Back To Top
Installation Instructions - (SV9540 SmartValveT System Controls)
Installation Instructions - (SV9540 SmartValve System Controls)
Gas Control Valve Multiple Parts(LineArt)
Gas Control Valve Multiple Parts(LineArt - Web Quality Image)
Gas Control Knob Callouts(LineArt)
Gas Control Knob Callouts(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
Smart Valve System Controls Chart(LineArt)
Smart Valve System Controls Chart(LineArt - Web Quality Image)
SmartValve Installation(LineArt)
SmartValve Installation(LineArt - Web Quality Image)
SmarValve Wiring(LineArt)
SmarValve Wiring(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
SmartValve Wiring(LineArt)
SmartValve Wiring(LineArt - Web Quality Image)
Gas Valve Callouts(LineArt)
Gas Valve Callouts(LineArt - Web Quality Image)
Gas Valve Ad Slick(LineArt)
Gas Valve Ad Slick(LineArt - Web Quality Image)
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