S89C1087 | Honeywell Single-Rod Hot Surface Ignition Control 24V

Honeywell · Industrial Automation & Electrical

Description  The Honeywell S89C1087 is a single-rod hot surface ignition (HSI) control module designed for use in gas-fired furnaces, boilers, and heating appliances. Operating at 24 VAC, it manages the entire ignition sequence, providing a 6-second ignition trial followed by automatic lockout if flame is not detected, ensuring safe and reliable burner control.   Technical Specifications  Condition New/Never Used Surplus Brand Honeywell Category Ignition Controls Part Number S89C1087 Subcategory Hot Surface Ignition Module Ignition System Type Direct Hot Surface Ignition (HSI) Ignition Source Line Voltage (120 VAC) Hot Surface Element (Norton 201 or 271 Compatible) Ignition Sequence Single Trial for Main Burner Ignition Ignition Trial Duration 6 Seconds Lockout Type Single Trial Lockout After Ignition Failure Flame Sensing Method Single Rod Flame Rectification Flame Failure Response Time 0.8 Seconds @ 5.0 µA Gas Type Natural Gas or LP Gas Typical Gas Controls Compatible with VR8205, VR8305, and Similar Honeywell Gas Valves Electrical Rating 24 VAC Frequency 60 Hz Power Consumption 0.2 A Maximum Valve Load @ 24 VAC 2 A Temperature Range -40°F to +175°F (-40°C to +79°C) Safety Feature 100% Gas Shutoff on Lockout Prepurge None Reset Method Manual Reset via Thermostat Mounting Orientation Surface Mount Dimensions (H × W × D) 5-1/4 in × 4-1/16 in × 1-15/16 in Housing Material Heat-Resistant Molded Plastic Compatibility Designed for Hot Surface Systems with Combination Igniter-Sensor Certifications CSA and UL Certified for Gas Heating Appliances Weight 1.00 lb (0.45 kg)   Information About S89C1087 The S89C1087 is part of Honeywell’s S89 Series of hot surface ignition control modules engineered for direct control of gas-fired appliances. It performs a fully automatic ignition sequence by energizing the hot surface igniter, verifying flame presence, and controlling the main gas valve accordingly. Compatible with Norton 201 and 271 igniters, it uses a single rod to both ignite the burner and sense flame presence through rectification. If ignition fails during the 6-second trial period, the module performs a complete gas shutoff and enters lockout mode, requiring a thermostat reset for restart. This single-trial safety design provides dependable protection against unburned gas accumulation. The S89C1087 is compact, easily mountable, and ideal for residential and light commercial systems that demand both safety and ignition precision. Key Features: Single-Rod HSI Control: Combines ignition and flame sensing in one electrode for simplified design and installation. 6-Second Ignition Trial: Provides fast burner light-off and immediate safety lockout upon failure to ignite. Automatic Gas Shutoff: Ensures complete gas flow interruption after ignition failure, enhancing system safety. Thermostat Reset Feature: Lockout clears when thermostat calls for heat again, simplifying operation. Flame Rectification Sensing: Utilizes proven electronic detection method for reliable flame verification. Wide Temperature Range: Operates from -40°F to +175°F for reliable use in varied environmental conditions. Broad Compatibility: Works with natural gas or LP systems and integrates with VR8205/VR8305 gas valves. Rugged and Compact Construction: Built for durability and easy installation in confined furnace compartments. High Reliability: Solid-state electronics provide consistent performance with minimal maintenance. Certified Safety Compliance: Meets CSA and UL standards for residential and commercial heating safety. The S89C1087 delivers the reliability and precision required for modern gas-fired systems, combining fast ignition control, automatic safety lockout, and dependable flame supervision in one compact module.

Brand: Honeywell · Category: Industrial Automation & Electrical

Key features

• Single-Rod HSI Control: Combines ignition and flame sensing in one electrode for simplified design and installation.
• 6-Second Ignition Trial: Provides fast burner light-off and immediate safety lockout upon failure to ignite.
• Automatic Gas Shutoff: Ensures complete gas flow interruption after ignition failure, enhancing system safety.
• Thermostat Reset Feature: Lockout clears when thermostat calls for heat again, simplifying operation.
• Flame Rectification Sensing: Utilizes proven electronic detection method for reliable flame verification.
• Wide Temperature Range: Operates from -40°F to +175°F for reliable use in varied environmental conditions.
• Broad Compatibility: Works with natural gas or LP systems and integrates with VR8205/VR8305 gas valves.
• Rugged and Compact Construction: Built for durability and easy installation in confined furnace compartments.
• High Reliability: Solid-state electronics provide consistent performance with minimal maintenance.
• Certified Safety Compliance: Meets CSA and UL standards for residential and commercial heating safety.

Specifications

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