S87K1008 | Honeywell Direct Spark Ignition Control W/4 Second Trial

Honeywell · HVAC & Building Controls

Description  The Honeywell S87K1008 is a direct spark ignition control module designed for gas-fired furnaces, boilers, and heating appliances. Operating on 24 VAC, it manages ignition sequencing, flame sensing, and safety lockout for natural or LP gas systems.     Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category HVAC Part Number S87K1008 Subcategory HVAC Control System Board Type Direct Spark Ignition Module Ignition Type Internal High Voltage Spark Power Supply 24 VAC @ 60 Hz Gas Type Natural or LP Flame Sensing Method Two-Rod Ignition Trial to Lockout 1 Trial (4 seconds) Prepurge Time Minimum 30 seconds Flame Failure Response 0.8 seconds Maximum Valve Load 2A @ 24 VAC Operating Temperature Range -40°F to +175°F (-40°C to +79°C) Compatible Gas Controls VR8205, VR8305 Compatible Hardware Q347A Reset Method Thermostat resettable Mounting Surface/Panel Mount Dimensions (H x W x D) 5.25" x 4.06" x 1.94" (13.3 x 10.3 x 4.9 cm) Discontinued Yes Weight 1.01 lbs (approx. 0.46 kg)       Information About S87K1008 The S87K1008 is a low-voltage, solid-state ignition module from Honeywell, engineered to provide electronic control for direct spark ignition systems. It supports both natural and LP gas applications and is compatible with typical Honeywell gas controls like VR8205 and VR8305. The module includes an internal high-voltage spark generator, two-rod flame sense, and a built-in 30-second minimum prepurge. With a single ignition trial followed by lockout on failure, the S87K1008 ensures safe operation in high-demand heating environments. This unit is often used with ignition hardware such as Q347A and is thermostat-resettable after a lockout event. Key Features: Direct Spark Ignition Control: Manages full ignition sequence and flame monitoring for gas-fired systems. 24 VAC Operation: Compatible with low-voltage heating systems operating at 60 Hz. Two-Rod Flame Sensing: Offers reliable flame detection for enhanced safety and response. Built-in Spark Generator: Provides high voltage for main burner ignition without external modules. Flame Failure Timing: Fast 0.8 second response and re-ignition time for critical applications. Ignition Trial and Lockout: Single 4-second ignition attempt followed by system lockout if failed. Prepurge Functionality: 30-second minimum prepurge for combustion chamber clearing before ignition. Thermostat Resettable: Allows reset after lockout via thermostat without manual intervention. Compact Design: Measures 5.25" H x 4.06" W x 1.94" L for simple integration. Compatible Gas Controls: Designed for use with VR8205, VR8305, and other 2A-rated systems. The S87K1008 delivers dependable ignition management and flame supervision for safe and efficient operation in residential and commercial gas heating systems.

Brand: Honeywell · Category: HVAC & Building Controls

Key features

• Direct Spark Ignition Control: Manages full ignition sequence and flame monitoring for gas-fired systems.
• 24 VAC Operation: Compatible with low-voltage heating systems operating at 60 Hz.
• Two-Rod Flame Sensing: Offers reliable flame detection for enhanced safety and response.
• Built-in Spark Generator: Provides high voltage for main burner ignition without external modules.
• Flame Failure Timing: Fast 0.8 second response and re-ignition time for critical applications.
• Ignition Trial and Lockout: Single 4-second ignition attempt followed by system lockout if failed.
• Prepurge Functionality: 30-second minimum prepurge for combustion chamber clearing before ignition.
• Thermostat Resettable: Allows reset after lockout via thermostat without manual intervention.
• Compact Design: Measures 5.25" H x 4.06" W x 1.94" L for simple integration.
• Compatible Gas Controls: Designed for use with VR8205, VR8305, and other 2A-rated systems.

Specifications

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