Description
International Comfort Products 1173822 Limit Switch
The International Comfort Products (ICP) 1173822 is an OEM replacement limit switch engineered to protect your furnace from overheating conditions. Designed to open at 120°F and automatically reset by closing at 100°F, this limit switch acts as a critical safety device that interrupts burner operation when supply air temperatures exceed safe thresholds — preventing heat exchanger damage and ensuring occupant safety.
How It Works
The limit switch continuously monitors air temperature within the furnace plenum or heat exchanger area. When temperatures rise to the 120°F open setpoint, the switch interrupts the control circuit, shutting down the burner. Once the system cools to the 100°F close setpoint, the switch automatically resets, allowing normal operation to resume.
Key Features
- OEM replacement part for International Comfort Products furnaces
- Opens (trips) at 120°F to protect against overheating
- Automatically closes (resets) at 100°F for reliable auto-reset operation
- Provides critical high-limit safety protection for heat exchanger longevity
- Direct OEM fit ensures proper installation and reliable performance
- Compatible with select ICP, Heil, Tempstar, Arcoaire, and related brand furnace models
Specifications
- SKU / Part Number: 1173822
- Brand: International Comfort Products (ICP)
- Switch Type: High-Limit Safety Switch
- Open (Trip) Temperature: 120°F
- Close (Reset) Temperature: 100°F
- Operation: Automatic Reset
Application
This limit switch is intended for use in residential and light commercial gas furnaces manufactured by International Comfort Products and affiliated brands. Always verify compatibility with your specific furnace model number before installation. Installation should be performed by a qualified HVAC technician in accordance with local codes and manufacturer guidelines.
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