III. Water Connections

CAUTION

The heat pump inlet and outlet connections are NOT interchangeable. They must be connected as instructed below.

1.Connect the heat pump in the return water line between the pool filter and the pool. See page 10, Plumbing Diagrams.

2.Connect the filter outlet to the fitting marked WATER IN at the bottom front of the unit.

3.Connect the fitting marked WATER OUT to the return piping to the pool. Unit inlet/outlet connection fittings are 50mm PVC slip couplers.

Water connections from the heat pump to the main return line can be PVC pipe or flexible pipe approved for the purpose and, in either case, should be at least equal in size to the main pool circulation piping.

4.In cold weather (freeze zone) areas, shutoff valves (ball or gate type) must be installed at the heat pump inlet and outlet to facilitate service and cold weather drain-down.

5.When the water connections are complete, operate the pool pump and check the system for leaks.

Automatic chemical feeders must not be installed upstream of the heat pump. Improper installation of erosion-type automatic chemical feeders can result in serious damage to, or premature failure of, the heat pump. A flow check valve will be required.

IV. Controls and Indicator Lamps

Your heat pump incorporates safety controls and indicators to ensure its safe, reliable operation.

Water Pressure Switch: Prevents operation when the pump is OFF. The unit requires 35 Kpa minimum pressure.

Water Temperature Control: Pool/spa water temperature is controlled by the heat pump thermostat on the unit control panel, which contains a switch and 2 thermostats, one for setting a spa temperature and the other for a swimming pool temperature. The switch can operate an optional external control system, or can switch between thermostats for pool or spa.

NOTE: The heat pump will not run when the Remote position is selected and there is no remote control system attached.

Defrost Switch: Prevents heat pump operation if ambient air temperature falls below a predetermined safe minimum (approximately 5.5°C).

Delay Timer: Prevents compressor from short cycling, which could damage or destroy the hermetic motor/compressor. Upon water temperature control satisfaction, or other control circuit interruption, this solid state device will prevent compressor restart for approximately 5 minutes. Upon power failure or interruption, a 6 to 8 minute delay will also be initiated.

Refrigerant Low Pressure Control: Stops the compressor if refrigerant suction (low side) pressure falls too low as a result of a malfunction or loss of charge.

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Raypak RHP 33 installation manual III. Water Connections, IV. Controls and Indicator Lamps
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RHP 33 specifications

The Raypak RHP 33 is a high-performance heater designed to meet the needs of both residential and commercial swimming pools and spas. Known for its reliability and energy efficiency, this unit stands out in the market for several reasons.

One of the main features of the RHP 33 is its high-efficiency design. With an output of 333,000 BTUs, it offers rapid heating capabilities, ensuring that your pool or spa reaches the desired temperature quickly, even in cooler climates. The heater is powered by natural gas or propane, giving users flexibility depending on their fuel preferences.

The Raypak RHP 33 incorporates innovative technology that enhances its durability and performance. One notable feature is its durable titanium heat exchanger, which is known for resisting corrosion and ensuring longevity. This is particularly important for those using saltwater pools, as conventional heaters may degrade more quickly in such environments.

The unit also features a built-in digital thermostat that allows for precise temperature control. Users can easily adjust the temperature settings via a user-friendly interface, making it simple to maintain the perfect warmth for leisure activities. The RHP 33 is equipped with an electronic ignition system that provides reliable starts, eliminating the hassle of pilot lights and enhancing safety.

In terms of installation, the Raypak RHP 33 is designed for outdoor use, with a robust housing that protects against the elements. Its compact size allows for versatility in placement without sacrificing performance. Furthermore, the heater’s low NOx emissions technology ensures compliance with environmental regulations, making it an eco-friendly choice for homeowners who are conscious about their ecological footprint.

The RHP 33 also boasts a self-diagnostic system, which provides real-time feedback on its performance and alerts users to potential issues, thereby minimizing downtime. This feature is coupled with easy access to internal components, ensuring straightforward maintenance and repairs when necessary.

In summary, the Raypak RHP 33 is a cutting-edge pool and spa heater that delivers efficiency, reliability, and user-friendly features. With its advanced technologies, including a titanium heat exchanger, digital controls, and environmental compliance, it is an excellent choice for anyone looking to enjoy their water features year-round.
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