ICP 40VA Transformer for WPA3602000RKB1 – 208/230V to 24V | Ships Today
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Overview
This is an OEM 40VA control transformer assembly for the ICP / Heil / Tempstar WPA3602000RKB1 heat pump, including the step-down transformer (OEM 1173691), the 24V DPDT relay (OEM 1176137, Honeywell R8222B1232 type), and the 24V terminal barrier (OEM 1176148, 42-60). The transformer steps the 208/230V line voltage down to the 24V control signal that powers the contactor coil, defrost board, relays, and thermostat circuit. When a transformer fails, the entire low-voltage control system goes dead: the contactor won't pull in, the unit won't start on a call for cooling or heating, and you'll often find a blown low-voltage fuse or no 24V reading at the R and C terminals. A buzzing, overheated, or visibly scorched transformer is a clear failure sign. Rated at 40VA, this transformer supplies ample control power for the WPA3602000RKB1 and resists nuisance burnout caused by a sticking contactor.
Specifications
| Spec | Value |
|---|---|
| Part Numbers | 1173691 (Transformer), 1176137 (Relay), 1176148 (Barrier) |
| Type | Control Transformer |
| Brand | ICP / Heil / Tempstar |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Rating | 40 VA |
| Relay | 24V DPDT (R8222B1232) |
Compatibility
Engineered as a direct OEM fit for the ICP / Heil / Tempstar WPA3602000RKB1 condensing unit. Commonly used across ICP-family 208/230V split-system heat pumps and air conditioners that use a 40VA, 24V secondary control transformer.
Installation Guide
- Safety First – Disconnect power at the breaker and pull the outdoor disconnect. Verify zero voltage at the line terminals with a multimeter.
- Access – Remove the control-panel service cover to expose the transformer and low-voltage wiring.
- Document – Photograph all primary and secondary wire connections before disconnecting anything.
- Remove – Disconnect the line-voltage primary leads and the 24V secondary leads, then unbolt the failed transformer from the mounting bracket.
- Install – Mount the new transformer, reconnect the 208/230V primary and 24V secondary leads exactly per your photo, and re-seat the relay and barrier.
- Test – Restore power and confirm 24V across R and C, then verify the contactor pulls in on a thermostat call.
Signs You Need a Replacement
- No 24V at the control terminals and the unit won't start
- Repeatedly blown low-voltage fuse
- Buzzing, humming, or overheated transformer body
- Burnt smell or visible scorching on the transformer windings
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day hassle-free 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