Zodiac - Evaporator Z400 MD4/MD5 - R0813200

Zodiac – Evaporator Z400 MD4/MD5 – R0813200

The Zodiac R0813200 is a genuine OEM replacement evaporator designed specifically for the Zodiac Z400 heat pump series, compatible with the MD4 and MD5 models. The evaporator is a critical heat exchange component within the refrigeration circuit of the heat pump. It absorbs ambient thermal energy from the surrounding air and transfers it into the refrigerant, which is then compressed and used to heat your pool water. Without a properly functioning evaporator, the heat pump cannot extract energy from the air and will fail to deliver efficient or consistent heating performance.

As a factory-original Zodiac spare part, the R0813200 is manufactured to the exact tolerances and specifications of the original component installed in Z400 MD4 and MD5 heat pump units. This ensures a direct fit replacement with no modifications required, preserving the heat pump’s rated efficiency and output performance. The evaporator assembly is engineered to withstand the thermal and mechanical demands of continuous pool heating operation, and its replacement restores the unit to full manufacturer specification.

Technical characteristics and compatibility

The R0813200 evaporator is designed exclusively for the Zodiac Z400 heat pump in the MD4 and MD5 configurations. The Z400 range is a residential pool heat pump series produced by Zodiac (Fluidra), and the MD4 and MD5 variants refer to specific output capacity models within that lineup. Because heat pump evaporators are precision-engineered for their host unit, it is essential to confirm the exact model designation of your heat pump before ordering. Using this part in any other configuration or model variant — including the MD7, TD7, or MD8 — will result in incompatibility. The part numbers R0813300 and R0813400 are listed for those higher-capacity variants.

Installation of the evaporator should be carried out by a qualified refrigeration or pool heating technician, as the component forms part of the sealed refrigerant circuit. Correct handling, vacuuming, and recharging of the refrigerant circuit is required to restore the system to safe and efficient operation after replacement.

Suitability and application

This replacement evaporator is intended for owners and service technicians maintaining Zodiac Z400 MD4 or MD5 residential pool heat pumps. The Z400 series is designed for private swimming pools of small to medium capacity, and these entry-level MD models are suited to pools where a moderate heating output is sufficient. If your Z400 heat pump is producing insufficient heat output, displaying fault codes related to the refrigerant circuit, or has suffered physical damage to the evaporator coil, this genuine Zodiac spare part provides the correct factory replacement. Using an original Zodiac component ensures continued compliance with the manufacturer’s warranty terms where applicable and maintains the long-term reliability of the heating system.