ICP 40VA Transformer for WPA4244000RKB1 — 208/230V to 24V | Ships Today
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Overview
This genuine OEM control transformer (part number 1173691) steps 208/230V line voltage down to the 24V control voltage that powers the ICP WPA4244000RKB1's low-voltage circuit — the contactor coil, control board, and thermostat. Rated at 40VA, it supplies the steady, clean 24-volt secondary the system needs to switch and sequence reliably. This listing also includes the matching terminal barrier (part number 1176144) that protects and isolates the 24V connections. When a transformer fails — usually from a shorted secondary, an overloaded control circuit, or a surge — the entire low-voltage side goes dead: no thermostat power, no contactor pull-in, and no cooling. Replacing it restores the 24V supply and brings the control circuit back to life.
Specifications
| Spec | Value |
|---|---|
| Part Number | 1173691 (transformer), 1176144 (barrier) |
| Type | Control Transformer |
| Brand | ICP (Heil / Tempstar / Comfortmaker) |
| Rating | 40 VA |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Fitment | OEM Replacement |
Compatibility
A direct OEM replacement for the ICP WPA4244000RKB1 condensing unit. Because ICP manufactures for Heil, Tempstar, and Comfortmaker, this 40VA 208/230-to-24V transformer fits matching units across those brands. Verify your existing transformer's VA rating and primary/secondary voltages before installing.
Installation Guide
- Safety First — Disconnect power at the breaker and disconnect, then verify zero voltage at the transformer leads with a multimeter.
- Access — Remove the service panel to reach the control compartment.
- Document — Photograph the primary (line) and secondary (24V) wiring and the barrier placement before disconnecting.
- Remove — Disconnect the primary and secondary leads and unbolt the old transformer from its bracket.
- Install — Mount the new transformer, land the 208/230V primary and 24V secondary leads per your photo, and seat the terminal barrier.
- Test — Restore power and confirm 24V across the secondary, then verify the contactor pulls in on a cooling call.
Signs You Need a Replacement
- No 24V control voltage and a completely dead thermostat
- Contactor will not pull in even though line voltage is present
- Transformer is hot, buzzing, or has a burnt smell
- Repeated control-fuse blows or a shorted secondary winding
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