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This is a genuine OEM 40VA control transformer for the ICP/Heil/Tempstar WJH336000KTP0A2. It steps 208/230V line voltage down to the 24V control circuit that powers the thermostat, contactor coil, reversing valve coil, and safety controls. Rated at 40VA, it supplies enough current to energize the reversing-valve solenoid and contactor simultaneously without sagging. When the transformer fails — open primary, shorted winding, or a popped internal fuse — the entire low-voltage system goes dead: no thermostat display, no contactor pull-in, and no heat-pump operation. This combo listing also covers the related 24V reversing-valve coil and barrier hardware (OEM 1176032, 1172619, 1173708) used on the same control assembly.
| Spec | Value |
|---|---|
| Primary OEM Part Number | 1173691 (TRANS 208/230>24 40VA) |
| Related OEM Parts | 1176032 Barrier 24V, 1172619 Coil Rev Vlv 24V, 1173708 Valve Rev w/Coil 24V |
| Type | Step-Down Control Transformer |
| Rating | 40 VA |
| Primary Voltage | 208/230V |
| Secondary Voltage | 24V |
| Brand | ICP / Heil / Tempstar / Comfortmaker |
Direct OEM fit for the ICP/Heil/Tempstar WJH336000KTP0A2 heat-pump platform and related units using the 40VA 208/230-to-24V control transformer. Verify the part number and VA rating on your existing transformer before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.