Fluidra - Electronic Expansion Valve for Zodiac Z400 IQ R32 Heat Pump

Fluidra – Electronic Expansion Valve for Zodiac Z400 IQ R32 Heat Pump

This is the genuine Fluidra replacement electronic expansion valve (EEV) designed specifically for the Zodiac Z400 IQ R32 swimming pool heat pump. The electronic expansion valve precisely meters the flow of R32 refrigerant through the heat pump’s refrigerant circuit, playing a critical role in maintaining optimal heating efficiency and system performance. Replacing a faulty or failed EEV with a genuine OEM part restores the heat pump to its original operating specification.

Compatibility

This electronic expansion valve is a genuine spare part for the Zodiac Z400 IQ R32 heat pump range — including models such as the WH000382, WH000383, WH000390, WH000391, WH000398, and WH000399. It is designed exclusively for R32 refrigerant variants of the Z400 IQ and is not interchangeable with earlier R410A models. Always verify your heat pump’s model number and refrigerant type before ordering.

Why Genuine Matters

As a safety-critical component within a pressurised R32 refrigerant circuit, the expansion valve must meet the precise tolerances required by the original system design. A genuine Fluidra part ensures correct fitment, reliable refrigerant metering, and compliance with the manufacturer’s specifications — protecting both the heat pump’s warranty and the integrity of the sealed refrigerant circuit.

Installation

Replacement of the electronic expansion valve involves working within the sealed R32 refrigerant circuit of the heat pump. R32 is a mildly flammable refrigerant, and all work on the refrigerant system must be carried out by a qualified technician holding the appropriate F-gas certification. Refer to the official Zodiac Z400 IQ installation and service manual for full procedures before beginning any repair.