ICP 40VA Transformer for WPG3602090RKB1 — 208/230V to 24V | Ships Today
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Overview
This OEM control transformer (part number 1173691) steps the 208/230V line voltage down to the 24V control voltage that powers the thermostat, contactor coil, gas valve, and control board on the ICP / Heil / Tempstar WPG3602090RKB1 packaged unit. Rated at 40VA, it supplies enough current for the full low-voltage control circuit. The listing includes the matching 24V terminal barrier (part 1176032) used to land the secondary control wiring. A failed transformer is a common cause of a completely dead system: no thermostat display, no contactor pull-in, and no response on either a heat or cool call. Transformers fail from voltage spikes, a shorted 24V circuit, or simply age and overheating.
Specifications
| Spec | Value |
|---|---|
| OEM Part Number | 1173691 (transformer), 1176032 (24V barrier) |
| Type | Control / Step-Down Transformer |
| Rating | 40 VA |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
| Fits Model | WPG3602090RKB1 |
| Fitment | OEM direct replacement |
Compatibility
Designed for the ICP / Heil / Tempstar / Comfortmaker WPG3602090RKB1 packaged gas-electric system and other International Comfort Products units using a 40VA 208/230-to-24V control transformer. Verify your primary voltage tap (208 vs 230) and OEM part 1173691 before installing.
Installation Guide
- Safety First — Disconnect power at the unit and verify zero voltage with a multimeter on both line and 24V circuits.
- Access — Remove the control/electrical access panel.
- Document — Photograph every primary and secondary wire, including the barrier terminals, before disconnecting.
- Remove — Disconnect the primary leads and 24V secondary wires, then unbolt the old transformer and barrier.
- Install — Mount the new transformer, land the primary on the correct voltage tap, and reconnect the 24V secondary to the barrier per your photo.
- Test — Restore power and confirm 24V at the secondary and normal thermostat, contactor, and gas-valve operation.
Signs You Need a Replacement
- No power to the thermostat or control board.
- Contactor will not pull in on a cooling call.
- No 24V measured at the transformer secondary.
- Burned, swollen, or overheated transformer body or melted insulation.
Shipping & Returns
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days