Zodiac - Evaporator Z400 MD8/TD8/MD9/TD9 - R0813400

Zodiac – Evaporator Z400 MD8/TD8/MD9/TD9 – R0813400

The Zodiac R0813400 is a genuine OEM replacement evaporator designed specifically for the Zodiac Z400 series heat pump range, covering the MD8, TD8, MD9, and TD9 models. The evaporator is one of the most critical components in any air-source heat pump system: it is the large coil assembly through which outdoor air passes, allowing the refrigerant inside to absorb ambient heat energy. This absorbed heat is then transferred to the pool water via the refrigeration cycle, providing efficient and consistent pool heating even in cooler ambient temperatures. Using a genuine Zodiac replacement evaporator ensures the thermal exchange efficiency of your heat pump is fully restored to factory specification.

Technical characteristics and compatibility

As a core heat exchange component, the evaporator in the Z400 series heat pump is engineered to precise refrigerant flow and airflow specifications to match the thermal output requirements of the MD8, TD8, MD9, and TD9 units. The evaporator assembly integrates directly into the Z400 chassis and is matched to the unit’s fan, compressor, and refrigerant circuit. Because heat pump evaporators are designed to exact tolerances for refrigerant type, charge pressure, and airflow volume, only a model-specific replacement guarantees correct operation. This part is exclusively compatible with the Z400 series MD8, TD8, MD9, and TD9 variants and is not interchangeable with other Z400 sub-models such as the MD4, MD5, MD7, or TD7, which use a different evaporator (R0817200). Installation of this component should be performed by a qualified refrigeration or pool heating technician, as it involves the refrigerant circuit.

Suitability and application

This replacement evaporator is intended for owners and service technicians maintaining Zodiac Z400 series heat pumps in the MD8, TD8, MD9, and TD9 configuration. The Z400 heat pump series is a residential pool heating solution designed for above-ground and in-ground pool installations. If your heat pump is showing reduced heating output, frost build-up that does not defrost correctly, or visible physical damage to the evaporator fins or coil, replacing the evaporator with this genuine Zodiac part is the correct course of action to restore full heating performance. Always verify your exact heat pump model number before ordering to confirm compatibility.