Raypak RHP115, RHP160, RHP100 User Manual

Raypak® RHP Series
Swimming Pool and
Spa Heat Pump

OWNER and

INSTALLATION MANUAL

Models

L

I

S

E

T

9900276

R

D

RHP 100
RHP 115
RHP 160

This manual should be maintained in legible condition and kept adjacent

to the heat pump or in a safe place for future use.

USC

For additional information call:

The instructions in this manual are for the use of qualified individuals specially
trained and experienced in the installation and maintenance of this type of
equipment a nd related s ystem components. Installation and s ervice personnel
arerequiredbysomestatestobelicensed.

P ers ons not qualified shall not attempt to install, s ervice, or maintain this
equipment.

The Pool

and Spa Heating Experts

[phone]

Manual Effective Date: 3/1/2003

Replaces: All Previous Versions

Developed and printed in U.S.A. Part No. 00-02101D

PRODUCT SAFETY SIGNS AND LABELS

Recognize this symbol in the
manual as an indication of

important safety information!

This manual, as well as the pool/spa heat pump itself, contains ANSI-approved product safety
signs and labels. Please read these signs and labels, as they convey important safety information
about hazards that may be potentially present in and around the heat pump. They are classified
according to relative seriousness of the hazard potential, from DANGER at the most serious, to
WARNING, to CAUTION at the least serious.

An example of a heat pump safety label follows.

CAUTION

Excessive chemical content in a swimming pool or spa can damage the heat pump.

DO NOT skimmer feed - Avoid adding chemicals in this manner.

AUDIENCE

The audience for this manual is twofold:

1. For the installing contractor, to provide information for the proper installation and
adjustment of the heat pump;

2. For the owner-operator, to explain the features, operation, safety precautions, and service/
maintenance of the heat pump. The manual also includes system drawings and illustrated
replacement parts lists.

WARRANTY CLAIMS

(See the enclosed Warranty information)

For the Warranty to apply, proper authorization MUST be obtained PRIOR to making any repairs.
This Warranty is VOID if the product is repaired or altered in any way by ANY persons or
agencies other than those authorized by Raypak.

CONTACT INFORMATION

Raypak, Inc., 2151 Eastman Ave., Oxnard, CA 93030

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RHP Series Swimming Pool and Spa Heat Pump

OWNER and INSTALLATION MANUAL

CONTENTS

Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

I. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

II. Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

III. Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

IV. Controls and Indicator Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

V. Initial Start-Up and Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

VI. Seasonal Start-Up or Annual Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

VII. Heat Pump Running Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

VIII. Summer Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

IX. Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

X. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

XI. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Plumbing Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Heat Pump Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Control Panel Assembly Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Control Panel Cover Assembly Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . 13

Heat Pump Assembly Replacement Parts List - RHP 100 . . . . . . . . . . . . . . . . . . . . . . . . 14

Heat Pump Assembly Replacement Parts List - RHP 115 . . . . . . . . . . . . . . . . . . . . . . . . 15

Heat Pump Assembly Replacement Parts List - RHP 160 . . . . . . . . . . . . . . . . . . . . . . . . 16

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Introduction

WARNING

This pool/spa heat pump is an electromechanical machine that incorporates
a pressurized refrigerant gas in a sealed system. ONLY trained and qualified
service personnel should attempt to install or service this equipment.
Without proper training and knowledge of such equipment, any attempt to
install or service the unit could result in serious injury or even death.

This manual contains important information on the use, maintenance, chemistry requirements and
installation of your new heat pump. Proper installation and operation of the unit will increase the
benefits you receive from the unit.

This heat pump is an extremely efficient, economical machine designed specifically for pool and
spa heating. It is similar in design and operation to a typical residential air conditioning system.
The heat pump employs a hermetic motor/compressor operating in a refrigeration cycle to extract
heat from ambient air and deliver it to the circulating pool water.

As with all pool/spa heat pumps, compared to other types of pool heat pumps such as gas- or oil­fired, this heat pump has lower heating capacity on a BTU/hr basis. As a result, it will be required
to operate longer to accomplish the desired results. It may, at certain times, operate as much as 24
hours per day. However, this should not be of concern to the owner, because the unit is designed
to operate continuously. Even though it may operate continuously for many hours, it will still heat
the pool with greater economy than other types of fossil fuel heaters.

You are advised to put a pool cover over the pool at night and other non-use periods. This will
keep evaporation, the cause of the greatest heat loss, to a minimum, and so greatly reduce overall
pool heating costs. During warmer weather, the pool cover may be required only at night.

I. Installation

• The placement of the pool heat pump is very important to minimize installation costs while
providing maximum efficiency of operation, and to allow adequate service access.

• The unit is designed for outdoor installation and must not be installed in a totally enclosed
area such as a shed or garage, unless ventilation is provided to ensure adequate air exchange
for proper operation. Recirculation of cold discharge air back into the evaporator coil will
greatly reduce the unit’s heating capacity and efficiency.

• When installed in a geographical location where freezing temperatures can be encountered,
the water circuit should be drained to prevent possible freeze-up damage. See Section IX,
Freeze Protection.

• The unit should be located as close as possible to the existing pool pump and filter to
minimize water piping.

• All models feature an "up-flow" discharge for quiet operation. Air is pulled up through the
evaporator coil and discharged through the top grill. Allow at least 8 ft clearance above the
unit for unrestricted air discharge. Do NOT install the unit under a porch or deck.

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• Each side of the unit must be located at least 1 ft from walls, pipes, or other obstructions for
unrestricted air intake and service access.

WARNING

Do not install the unit within 3 ft of fossil fuel burning heaters. Air intake
along the sides of this heat pump could disturb the combustion process
of the unit, and could cause damage or personal injury.

• Mount the unit on a level, sturdy base, preferably a concrete slab or blocks. The size of the
base should be not less than 3 ft by 3 ft.

• Completely isolate the base from the building foundation or wall to prevent sound or
vibration transmission into the building. For this purpose, 4 black rubber sound isolation

pads are included with the unit. These pads must be installed under the corners of the
unit to reduce vibration and sound transmission to the base.

• If the unit is installed in an area known for water accumulation during periods of heavy
rainfall, its supporting base must be high enough to keep it completely free of standing water
at all times.

II. Electrical Connections

The table below lists the typical electrical power requirements for your heat pump.

Table 1: Typical System Electrical Power Requirements

Model VIN - Phase - Hz Min. circuit Ampacity (A) Max. breaker size (A)

RHP 100 208/230 - 1 - 60

208/230 - 3 - 60

RHP 115 208/230 - 1 - 60

208/230 - 3 - 60

RHP 160 208/230 - 1 - 60 46.2 60

31.4

20.5

40.4

27.5

50
30

60
40

Refer to the unit rating plate below the control panel for precise power requirement for each unit,
and for ampacity and over-current protection requirements. All wiring must be in accordance with
the National Electrical Code, NFPA No. 70, latest edition, and all applicable state and local codes.

NOTE: Refer to the National Electrical Code, Article 680, for general requirements
for swimming pools and equipment, and to Article 440 for special considerations
necessary for circuits supplying hermetic refrigeration motor/compressors.

The power supply connections to the unit are located behind the control panel. Remove the
control panel to expose the electrical controls. Line voltage connections are made at the line
voltage terminals of the compressor contactor. Refer to the Heat Pump Schematic (page 11) and
the Control Panel Assembly Replacement Parts List (page 12).

Conduit entrance to the unit is through a hole below the control panel.

NOTE: Make certain all electrical connections to unit terminals are secure.

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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

3. Connect the fitting marked
connection fittings are 2-inch 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 should 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 and/or a Hartford loop will be required.

WATER OUT to the return piping to the pool. Unit inlet/outlet

WATER IN at the bottom front of the unit.

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 5 psi
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
heat 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 42° F).

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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