Heil Quaker ICP 1190432 Transformer

The Heil Quaker ICP 1190432 Transformer is a critical step-down component engineered for multi-tap primary inputs of 208/230V and a secondary 24V control voltage output. Rated at 40VA, this Class 2 transformer provides the necessary wattage to power 24-volt thermostats, gas valves, and integrated furnace control boards across a wide range of Heil, Tempstar, and Comfortmaker residential systems. As an OEM replacement part, it ensures exact mounting alignment and electrical compatibility, preventing the common "humming" or secondary voltage drop-off seen with generic alternatives. This unit is specifically designed to handle the inductive loads of contactors and relays without saturating the core, maintaining stable HVAC control circuit performance under peak demand. Techs should verify technical load requirements before installation, as exceeding the 40VA threshold with additional accessories like power-hungry smart thermostats or zoning dampers can lead to premature primary winding failure. Durable construction facilitates reliable high-voltage to low-voltage conversion for long-term field service.

• OEM Precision: Direct replacement for ICP 1190432, ensuring proper fitment in existing blower compartments.
• 40VA Capacity: Sufficient power for standard residential HVAC 24V secondary circuits and ignition systems.
• Voltage Stability: Maintains consistent 24V output from 208V or 230V main power sources to protect sensitive electronics.
• Compact Footprint: Standard mounting bracket allows for quick swapping during furnace transformer replacement.

• Why did my original transformer burn out? Most 40VA transformers fail due to a downstream short in the 24V wiring or a seized contactor coil pulling excessive amperage.
• Can I use this for a 120V system? No, this model is designed for 208/230V primary inputs. Check your incoming line voltage before wiring.
• What happens if I overload the transformer with accessories? Adding bypass humidifiers or complex zoning may exceed 40VA, causing the transformer to overheat or trip the 3-amp or 5-amp fuse on the control board.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.