The S87 is a low voltage, solid state, direct spark ignition control module for gas-fired furnaces, boilers and heating appliances. Models are available with or without a prepurge timer. The S87 controls the gas valve, monitors the main burner flame and generates a high voltage for spark ignition.
The S87 is a low voltage, solid state, direct spark ignition control module for gas-fired furnaces, boilers and heating appliances. Models are available with or without a prepurge timer. The S87 controls the gas valve, monitors the main burner flame and generates a high voltage for spark ignition.
| Weight | 0.9 lbs |
|---|---|
| Dimensions | 5.25 × 4.07 × 1.94 in |
| Manufacturer | Honeywell |
| Brand | Resideo |
| Condition | New |
| Unit of Measurement | PK (Pack) |
| Production Status | Active |
| Weight | 0.9 lbs |
|---|---|
| Dimensions | 5.25 × 4.07 × 1.94 in |
| Manufacturer | Honeywell |
| Brand | Resideo |
| Condition | New |
| Unit of Measurement | PK (Pack) |
| Production Status | Active |
• S87A uses a single electrode for spark ignition and flame sensing. Use only with Resideo gas controls designed for OSI application: V845, V854, VR845, VR854, VR8450 and VR8540.
• S87B uses a single electrode for spark ignition and flame sensing. Use with any gas control designed for OSI application that is rated at 2.0 A or less. Includes optional alarm circuit for use on system safety lockout
• S87C uses separate electrodes for spark ignition and flame sensing. Use only with Resideo gas controls designed for OSI application: V845, V854, VR845, VR854, VR8450 and VR8540. For direct replacement of S825C.
• S87D uses separate electrodes for spark ignition and flame sensing. Use with any gas control designed for OSI application that is rated at 2.0 A or less. Includes optional alarm circuit. For direct replacement of S825D.
• S87J uses a single electrode for spark ignition and flamesensing. Use with any gas control designed for OSI application that is rated at 2.0 A or less. Includes a 30 second (minimum) delay for use with system prepurge.
• S87K uses separate electrodes for spark ignition and flame sensing. Use with any gas control designed for OSI application that is rated at 2.0 A or less. Includes a 30 second (minimum) delay for use with system prepurge.
• External, replaceable fuse protects system transformer and temperature controller.
• Automatic system lockout after trial-for-ignition if malfunction exists or main burner flame fails to ignite. All models available with 4, 6, 11, or 21 second (nominal) lockout time.
• Compact, solid state components for accurate, longlasting performance.
• Convenient remote start procedure; after safety shutdown, control module can be reset from the temperature controller.
• Low voltage control circuit reduces wiring costs.
• Uses flame rectification principle to prove presence of main burner flame; false flame signal resulting from short to ground results in safety shutdown.
