ICP 40VA Transformer for WPG3482115RKB1 — 208/230 to 24V | Ships Today

Overview

This OEM control transformer (part #1173691) steps 208/230V line voltage down to the 24V control voltage that powers the thermostat, contactor coil, and control board in your ICP, Tempstar, or Heil WPG3482115RKB1 unit. Rated at 40VA, it supplies the low-voltage circuit that runs the entire control system. A failed transformer means a completely dead control circuit — no thermostat response, no contactor pull-in, no operation at all. This listing includes the matching 24V barrier (#1176032) for a complete OEM replacement.

Specifications

Compatibility

Direct OEM fit for the ICP/Tempstar/Heil WPG3482115RKB1 package unit and other systems specifying a 208/230V-to-24V 40VA control transformer. Verify primary/secondary voltages and VA rating against your existing part before ordering.

Installation Guide

1. Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.
2. Access — Remove the service panel to reach the control box.
3. Document — Photograph the primary (line) and secondary (24V) wiring before disconnecting.
4. Remove — Label and disconnect the leads, then unfasten the old transformer and barrier from the control panel.
5. Install — Mount the new transformer and 24V barrier, then reconnect primary and secondary wires per your photo.
6. Test — Restore power and confirm 24V across the secondary terminals and normal control operation.

Signs You Need a Replacement

• Dead control circuit — thermostat and system unresponsive
• No 24V reading across the secondary terminals
• Burned, melted, or smelling-hot transformer body
• Repeated blown low-voltage fuses indicating a failed transformer

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.