Honeywell SV9520M2536 24V 1/2" X 1/2" Direct Hot Surface Ignition

Honeywell SV9520M2536 24V 1/2" X 1/2" Direct Hot Surface Ignition
Item# HONSV9520M2536

Product Description


The SV9520 SmartValve® System Controls, combine gas flow control and electronic direct main burner ignition sequencing functions into a single unit and provide all gas ignition safety functions by controlling gas flow, ignition source and air blower.


  • The control communicates directly with the ST9160 Electronic Fan Timer (EFT) in typical forced warm air furnace applications.
  • It will also interface 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.
  • This 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 appliances.

Product Specifications

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.
LP Conversion Kit
0 to 90 degrees in any direction from the upright position of the gas control knob, including vertically.
Electrical Ratings
24 Vac
50 Hz; 60 Hz
Tradeline Value
Super Tradeline
Call for heat--24 Vac, 60 Hz
Flame Failure Response Time (sec)
2 sec @ 5 µA
15 seconds
Ambient Temperature Range (F)
-40 F to +175 F
Ambient Temperature Range (C)
-40 C to +79 C
Ignition System Type
Direct Hot Surface Ignition
Ignition Sequence
7/12 sec
Type of Gas
Flame Sense
Two Rod
Ignition Trials To Lockout
4 trials
Ignition Trial Time (sec)
7 sec
Body Pattern
Opening Characteristics
Standard Opening
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.)
1/2 in. NPT x 1/2 in. NPT
Capacity (ft³/hr)
Maximum at 1 in. P.D.--150 ft³/hr; Maximum--200 ft³/hr; Minimum--20 ft³/hr
Capacity (m³/hr)
Maximum at 1 in. P.D.--4.2 m³/hr; Maximum--5.7 m³/hr; Minimum--0.6 m³/hr
Pressure Tapping
1/8 in. - NPT