ICP 40VA Transformer for WPA3362000RKB1 — 208/230V to 24V | Ships Today
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Overview
This genuine OEM 40VA control transformer (OEM part #1173691) steps 208/230-volt line power down to the 24-volt control voltage that runs the contactor coil, relays, and low-voltage circuit on the ICP/Tempstar/Heil WPA3362000RKB1. This listing includes the supporting control-circuit hardware for this model — terminal barrier #1176144 (24V, 24-36) and DPDT relay #1176137 (Honeywell R8222B1232, 24V) — so you can rebuild the low-voltage section in a single order. The transformer is the heart of the 24V system: if it fails, nothing in the control circuit can energize, leaving the unit completely dead even though line voltage is present. A transformer that has shorted from a stuck contactor coil or a pinched thermostat wire is one of the most common no-cooling service calls.
Specifications
| Spec | Value |
|---|---|
| Primary OEM Part Number | 1173691 (Transformer) |
| Included Parts | 1176144 Barrier 24V, 1176137 Relay DPDT R8222B1232 |
| Type | Step-Down Control Transformer |
| VA Rating | 40 VA |
| Primary Voltage | 208/230 VAC |
| Secondary Voltage | 24 VAC |
| Brand | ICP / Tempstar / Heil |
| Fitment | OEM Replacement |
Compatibility
Built as the factory control-circuit replacement set for the ICP/Tempstar/Heil model WPA3362000RKB1. The 40VA 208/230-to-24V transformer is shared across many ICP-family condensing units and air handlers. Verify OEM part numbers 1173691, 1176144, and 1176137 against your unit before ordering, and confirm your primary supply is 208/230V.
Installation Guide
- Safety First — Disconnect power at the disconnect and breaker, then verify zero voltage at the transformer primary leads with a multimeter.
- Access — Remove the unit's electrical service panel to reach the control box.
- Document — Photograph the primary, secondary, relay, and barrier wiring before disconnecting.
- Remove — Tag and disconnect the primary and 24V secondary leads, then unbolt the failed transformer (and relay/barrier if replacing).
- Install — Mount the new transformer, match the 208/230 primary tap to your supply, and reconnect the 24V secondary, relay, and barrier per your photo.
- Test — Restore power and confirm a steady 24VAC at the secondary, then verify the contactor and relay pull in on a cooling call.
Signs You Need a Replacement
- Unit is completely dead with no 24V control voltage present
- No measurable voltage at the transformer secondary terminals
- Burnt smell, scorching, or a melted spot on the transformer body
- Repeated blown control fuse or tripped low-voltage circuit
Shipping & Returns
Ships same day on orders placed before 3 PM CST. 30-day returns on unused parts. 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