this unit requires LTL freight shipping to prevent damage to the internal scroll and discharge housing during transit

a 500 Ohm resistor must be placed in parallel with the input signal

direct spark ignition (DSI)

Common Questions What causes a Trane CNT3785 to trip frequently

Enhanced Reliability: Constructed with high-quality insulation and terminals to prevent oxidation and ensure stable voltage

Heil Quaker ICP 1187153 Limit Switch 320734-701 this unit requires LTL freightThe Heil Quaker ICP 1187153 Limit Switch, factory designated as the L55F 22 Limit Switch, is a critical safety component engineered for precise thermal regulation within Heil Quaker and International Comfort Products (ICP) furnace assemblies. This furnace high limit switch is designed to monitor internal temperatures and interrupt the burner circuit if the heat exchanger exceeds its safe operating ceiling. This helps prevent thermal stress and