Raypak RHP 33 User Manual
Raypak® RHP Series
Swimming Pool and
Spa Heat Pump
OWNER and
INSTALLATION MANUAL
This manual should be maintained in legible condition and kept adjacent
to the heat pump or in a safe place for future use.
For additional information call:
(03) 9757 3333
Effective Date: Dec 2004
Replaces: All Previous Versions
Part No.
Model RHP 33
USC
L
I
S
T
E
D
R
9900276
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 and related system components. Installation and service personnel
are required by some states to be licensed.
Persons not qualified must not attempt to install, service, or maintain this
equipment.
The Pool and Spa Heating Experts
PRODUCT SAFETY SIGNS AND LABELS
This manual, as well as the pool/spa heat pump itself, contains 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
WA RNING, or CAUTION at the least serious.
An example of a heat pump safety label follows.
Excessive chemical content in a swimming pool or spa will 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 authorisation 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 authorised by Raypak or Rheem Service.
The heat pump Warranty will be VOID if chemical levels are not maintained within the limits
stated in the Warranty Information - Warranty Exclusions section of this manual.
CONTACT INFORMATION
Sales : RAYPAK Australia (a division of Rheem Australia)
39 Koornang Road, Scoresby Victoria 3179
Phone: 1300 725 729
Service: 131 031
www.raypak.com.au
Recognize this symbol in the
manual as an indication of
important safety information!
CAUTION
i
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 33 . . . . . . . . . . . . . . . . . . . . . . . . . 14
Limited Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
EXCLUSIVE WARRANTY - LIMITATION OF LIABILITY. . . . . . . . . . . . . . . . . . . . 16
ii
Introduction
This pool/spa heat pump is an electromechanical machine that incorporates
a pressurised 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,
this heat pump has lower heating capacity on a KW/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
p
ool 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 2.5m clearance above the
unit for unrestricted air discharge. Do NOT install the unit under a porch or deck.
WARNING
1
• Each side of the unit must be located at least 300mm from walls, pipes, or other obstructions
for unrestricted air intake and service access.
Do not install the unit within 1m 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 1m by 1m.
•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.
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 AS3000 Wiring Rules Section 7.2 Swimming Pools, latest edition, and all applicable state
and local codes.
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.
Table 1 : Typical System Electrical Power Requirements
Model V
IN -
Phase - Hz Min. circuit Ampacity (A) Max. breaker size (A)
RHP 33 240 - 1 - 50 42.2 60
WARNING
2
III. Water Connections
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
p
remature 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
p
redetermined 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)
p
ressure falls too low as a result of a malfunction or loss of charge.
CAUTION
3
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