ICP 40VA Transformer for WPG3422060RKB1 – 208/230V to 24V Control Transformer | Ships Today
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Overview
This OEM control transformer (part 1173691) steps the incoming 208/230V line voltage down to the 24V control voltage that powers the thermostat, gas valve, contactor coil, and control board on the ICP/Tempstar/Heil WPG3422060RKB1 packaged unit. Rated at 40VA, it supplies enough current for the full low-voltage control circuit. This listing includes the matching 24V barrier/cover (part 1176032) that protects and insulates the transformer terminals. When a control transformer fails — from a shorted thermostat wire, a stuck contactor, or simple age — the entire 24V system goes dead: no thermostat display, no call for cooling or heat, and no contactor pull-in. A blown transformer is one of the most common reasons an otherwise healthy unit appears completely unresponsive.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1173691 (Transformer), 1176032 (24V Barrier) |
| Type | Control Transformer |
| Brand | ICP (Tempstar / Heil) |
| Rating | 40 VA |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Fitment | OEM Direct Replacement |
Compatibility
Direct-fit replacement for the ICP/Tempstar/Heil WPG3422060RKB1 packaged unit and related ICP-family equipment that shipped with the 1173691 40VA transformer. Verify your primary voltage taps (208 vs. 230) and existing part number before installing.
Installation Guide
- Safety First – Disconnect power at the unit disconnect and verify zero voltage with a multimeter.
- Access – Remove the control-compartment service panel.
- Document – Photograph every primary and secondary wire and the barrier position before disconnecting.
- Remove – Label and disconnect the primary (line) and secondary (24V) leads, then unbolt the old transformer from the mounting plate.
- Install – Mount the new transformer, install the 24V barrier, and reconnect the primary taps for your supply voltage and the 24V secondary per your photo.
- Test – Restore power and confirm 24V at the secondary and a working thermostat, contactor, and gas valve.
Signs You Need a Replacement
- No power to the thermostat or blank thermostat display
- No 24V output measured at the secondary terminals
- Contactor or gas valve will not energize on a call
- Burnt smell, discoloration, or a tripped/blown low-voltage fuse
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