Pentair Transformer | ThermalFlo HP Titanium Heat Pump / UltraTemp 220 ETi | 473155Z
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- Backordered: contact us for ETA
- SKU:
- 473155Z
-
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About This Item
The Pentair Transformer (473155Z) is the OEM replacement transformer for the ThermalFlo HP Titanium heat pump series and the UltraTemp 220 ETi heater, restoring proper low-voltage control circuit operation when the original component has failed.
⚠️ IMPORTANT: ELECTRICAL COMPONENT — PROFESSIONAL INSTALLATION REQUIRED
This transformer is an internal electrical component of a heat pump or heater control system. Installation or replacement must be performed by a licensed pool professional or qualified HVAC technician. Do not attempt to service high-voltage or control circuit components without proper certification.
The transformer steps down incoming line voltage to the lower control voltage required by the heat pump or heater's control board and operating circuits. A failed transformer will prevent the unit from powering on or responding to thermostat commands. Replacing this component with the correct OEM part restores the original voltage output and ensures compatibility with the unit's control electronics.
Specifications
| Pentair Part Number | 473155Z |
| Legacy Part Number | 473155 |
| Part Name | Transformer |
| Part Category | Electrical Components |
| Quantity Included | Each |
Fits Into
| Brand | Equipment Line | Model / Part Number | Notes |
| Pentair | ThermalFlo HP Titanium | 500 | — |
| Pentair | ThermalFlo HP Titanium | 700 | — |
| Pentair | ThermalFlo HP Titanium | 900 | — |
| Pentair | ThermalFlo HP Titanium | 1200 | — |
| Pentair | ThermalFlo HP Titanium | 1200R | — |
| Pentair | UltraTemp ETi Series | ULTRATEMP 220 ETi | Electrical System |
Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.
Pro Tip
Before ordering, confirm the part number printed on your existing transformer matches 473155Z. Transformers are voltage-specific — installing a transformer with an incorrect output voltage will damage the control board. Have a licensed technician test the transformer output with a multimeter before condemning it; a failed control board or wiring fault can present symptoms identical to a failed transformer. Replacing the transformer will not resolve the fault if the root cause is elsewhere in the control circuit.
