Honeywell SV9641M4510 3/4" NPT Intermittent Hot Surface Pilot Ignition SmartValve

MSRP: $761.93
Price: $347.29
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3/4" NPT x 3/4" NPT Intermittent Hot Surface Pilot Ignition SmartValve Control with standard opening and 3.5" wc pressure regulator setting

Includes: (2) 3/4" x 1/2" reducer bushings and an LP conversion kit. 


  • 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 and SV9641 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.


  • 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
  • Control Voltage (Thermostat or other call for heat): 24 Vac
  • 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 x 124 mm high x 104 mm long
  • Pressure Regulator Setting (psi): 3.5 in. wc
  • Pressure Regulator Setting (kPa): 0.87 kPa
  • Pressure Ratings (psi): 1/2 psi
  • Pressure Ratings (kPa): 3.5 kPa
  • Inlet/Outlet Size (in.): 3/4 in. NPT x 3/4 in. NPT.
  • Maximum Capacity (ft³/hr): 415 ft³/hr
  • Maximum Capacity (m³/hr): 11.8 m³/hr
  • Minimum Capacity (ft³/hr): 30 ft³/hr
  • Minimum Capacity (m³/hr): 0.8 m³/hr
  • Maximum Capacity at 1 in. P.D. (ft³/hr): 300 ft³/hr
  • Maximum Capacity at 1 in. P.D. (m³/hr): 8.5 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
  • Tradeline Value: Super Tradeline