Spec's and Owner's Manual
Owner's Installation & Operations Manual
For Hydro Royal Heat Pump
Note from Hydro Royal:
This Owner's Manual refers simultaneously to Swimming Pool, Spa, and Aquaculture
tank applications. If you have any questions please contact Hydro Royal at (888)
TABLE OF CONTENTS
Congratulations on purchasing the most advanced
microprocessor-controlled pool , spa and
Aquaculture heat pump available. Your heat pump has been manufactured with the
most state-of-the-art quality control
equipment available today to ensure the highest
quality product delivered to
your door. A heat pump water heater is a highly
efficient, cost effective
method of water heating. Proper operation and
care will result in many years
of worry free heating or cooling depending on the
model you chose .
Your new heat pump is a self-contained unit
designed specifically for
swimming pool and spa heating and can be used for
when installed properly. It utilizes the sun's free energy by
extracting heat from the sun-warmed air and
transferring it efficiently to the
pool/tank water. Because your heat pump moves the
free heat from the
outside air to the pool/tank, rather than create
heat, as a fossil fuel or electric
resistance heater does, it can heat your
pool/spa/tank for up to
80% less cost than these other less efficient
As with all water heating methods, you are advised to utilize a cover at
night. The cover should be used if the night
temperature is 15°F (8°C)
less than the desired water temperature.
This will keep evaporation, the greatest source
of heat loss, to a minimum,
greatly reducing the overall heating costs.
During warmer weather,
the cover may not be required.
Your pool/spa/tank heat pump combines simplicity
performance. As with most appliances, an
understanding of proper
operation of the heat pump is important. Proper
installation and operation
increases efficiency and reduces operating costs.
Your heat pump is
designed with features that make it simple to
operate, maintain and service.
Proper installation enhances these features and
minimizes problems. This
manual will provide you with the information
needed to properly install,
operate and maintain your heat pump.
Please be sure to complete and mail in the
Warranty Registration Card that
is provided in the package with your heater. This
card helps us to notify
you about new information on your heater.
Also, please take a moment and jot down the
following information. If you
should ever need to call us for service or a
question, we will need this
The unit is designed for outdoor installation and
shall not be placed in a
totally enclosed area such as a shed or a garage
unless ventilation is
provided to ensure adequate air exchange for
Recirculation of cold discharge air back into the
evaporator coil will greatly
reduce heating capacity and efficiency of the
unit and void the compressor
The heat pump should be located as close as
practical to the existing pool/tank pump
and filter to minimize water piping length. The
use of 90° bends and short
radius elbows in the water piping should be
limited to keep water pressure
drop to a minimum.
Your heat pump features an up-flow fan for quiet
operation. Air is pulled
through the evaporator coil and discharged
through the top grill. At least 4
feet clearance should be allowed above the unit
for unrestricted air
discharge. The unit must not be installed under a
porch. Any side of the
unit should be located at least 12 inches from a
wall or other obstruction for
unrestricted air intake and service access.
Mount the unit on a flat, level surface,
preferably a concrete or fabricated
slab. The unit should be completely isolated from
the building foundation or
wall to prevent the possibility of sound or
vibration transmission into the
building. The base of the unit may be used to
fasten to if local codes
require securing the unit to the slab.
Make sure that there are no sprinkler heads near
or directly spraying into
the heater. Cap off or redirect heads as needed.
WIND TIE DOWNS
The unit can be strapped down using a strap kit.
strap to each side and anchor to the deck.
The piping sequence: pool/tank pump / filter /
heat pump / chlorinator (if pool) / pool/tank.
Note for Pools:
In-line chlorinators must be down stream of the
heater to minimize harm to the
Rigid PVC piping is recommended and all joints
secured with PVC glue. Make sure that the
direction of the water flow
through the heat pump is correct as indicated by
the labels on the unit. When
the piping installation is complete, operate the
pool pump and check the
system for leaks. Check the filter pressure gauge
to ensure that excessive
pump head pressure is not indicated.
The recommended flow rate is 50 gpm through the
For questions on multiple unit installations,
please contact our
main office. Multiple unit installations should
always be in
ELECTRICAL HOOK UP
CAUTION: The main power disconnect must be off
before opening the
It is required that the wiring of your heat pump
be done by a qualified
electrician in accordance with local code
IMPORTANT: The electrical conduit must be run up
through the base of
the unit and connected at the control box with a
A properly sized breaker and copper wire must be
used. See inside access
panel for wiring diagram.
Because all metals have different electrical
potentials, ALL metal
and electrical components of the pool/tank system
must be bonded
together. This includes the metal framework of
the pool/tank, lights, pump,
filter, heater, any automatic chlorine generator
and any other metal or
electrical equipment. On some older pools, this
substructure bond wire may
not exist. In this case, a 6 to 8 ft. copper rod
must be driven into the
ground near the pool/tank equipment and all
electrical and metal components
must be bonded to the rod. A bonding lug is
furnished on the side of the
control box of the heat pump for the bond wire to
be attached. Warranty will
be void if system is not properly bonded.
WATER CHEMISTRY MAINTENANCE
Not only is the water chemistry of your pool, spa
or tank important to human health
or livestock health, it also directly affects the
life of your heat pump. This is
the most important item in the maintenance of the
heat pump. If the water
chemistry is improperly maintained or if the
chemicals are improperly
introduced into the water, this will damage the
heat pump's internal heat
exchanger and could eventually cause a leak,
rendering the heat pump
CAUTION: Damage to the heat pump due to improper
is not covered under the warranty.*
Following is the table for essential water
quality readings, which must be
constantly maintained for swimming pools and
7.4 to 7.8
1 time per week
1.0 to 3 PPM
1 time every 2 to
80 to 120 PPM
1 time every 2 to
Below 2400 PPM
1 time per month
200 to 300 PPM
1 time per month
The location of the chemicals' introduction to
your system is also critical to
the heat pump's life. If an automatic in-line
chlorinator or brominator is used, it
must be located downstream of the heat pump. A
trap must also be installed
between the chlorinator and the heat pump to
prevent chlorine return into the
Note for Swimming Pools and
IMPORTANT: Never leave any type of solid chlorine
in the pool skimmer.
This will cause a high concentration of Chlorine
to enter the heat pump, causing
premature corrosion. You must divert water flow
directly to the pool/tank before
adding fast dissolving chemicals in skimmer.
* Models with Titanium Tube heat exchangers do
not have a water
chemistry exclusion in their warranty.
HEAT PUMP FEATURES
Your heat pump's cabinet is made from a maintenance-free,
rust-free plastic that is UV resistant. It will
last for years and any dirt or
dust may simply be wiped away with a cloth or
sprayed off with a water
hose. The use of a product such as Armor- All
will restore its natural luster.
DO NOT USE CLEANERS THAT CONTAIN ALCOHOL.
State-of-the-art LCD readout control. Displays mode and
temperature of the water for ease of operation.
No programming to learn.
Dual thermostats allow user to set pool, spa or
tank temperatures. The control
is self-diagnostic and will display a fault if
there is a problem. Other
features include: lockout, spa timer, automatic
low temperature defrost and
remote control capabilities.
The unit is equipped with a low RPM fan motor in
combination with a deep drawn venturi to ensure
whisper quiet operation.
HIGH EFFICIENCY –
The heat pump utilizes the latest in compressor
technology to produce the highest efficiency
available when coupled with
the over-sized enhanced fin evaporator coil.
EASE OF INSTALLATION -
The unit is equipped with easy-to-install,
hand-tightened unions for a quick and
trouble-free installation. The unions
will accept 2" PVC piping. The electrical
connection is made with one entry
directly into the control box for a quick hook-up
and a neat appearance.
EASY ACCESS –
The heat pump was designed for quick and easy access for
installation and diagnosis. The service panel is
removed with two screws
and access to all service connections is right up
front and easy to reach.
This allows the installation and service to be
done quickly and efficiently –
so valuable time is not wasted.
HEAT PUMP OPERATION
When the unit is powered up, but in the OFF mode,
the display will show
"OFF". To turn the unit on, press the Up arrow
button until desired
temperature is reached. To turn the unit off
press and hold the Down arrow
button until the display shows off. This point
will be one level below 50
degrees. This is convenient for shutting the unit
down for short periods of
CAUTION: When the control is in the "OFF" mode,
there is still high
voltage to the unit. If you want to turn the unit
off for long periods of time,
shut the main power off to the unit at the main
or service disconnect.
The control is equipped with two independent
thermostats, one for pool
temperature and one for spa temperature in case
of swimming pool application.
This is to allow the user to preset a temperature of their choice and switch
between the two settings with the POOL/SPA button located on the control.
When power is applied to the control it will turn on in the previous mode,
whether it is Pool Heat or Spa Heat.
When water is flowing through the unit and the water temperature meets
the specified set point condition, the control
will initiate a heat cycle.
If you do not have a spa, you can use the spa
thermostat as a second
temperature setting if you do not want to
maintain full temperature all the
time. For instance, if you swim on the weekends
only, you can set the
temperature back during the week to save costs
but maintain a warmer
temperature for a shorter recovery time for the
There is a 5-minute time delay upon completion of a
heating/cooling cycle. This is to ensure that the critical components do
not fail due to short cycling of the heat pump.
The display on the control will show the
thermostat being used and the
operating mode on the top line and the current
water temperature on the
bottom line. The possible mode displays are:
"POOL – HEAT", "SPA –
CHANGING SET POINT TEMPERATURE
To change the set point temperature, press either
the Up or Down arrow
buttons on the control. The display will then
show "POOL TEMPERATURE"
on the top line and the current set point
temperature in numbers on the
bottom line. After adjusting to the desired
temperature setting, the display
will revert to "POOL – HEAT" (or whichever mode
you are in) on the top line
and the pool temperature in numbers with
"DEGREES" on the bottom line
after 5 seconds of inactivity and the new set
point will be stored in memory.
The default factory setting for Pool temperature
is 85 degrees Fahrenheit.
HEATER RUNNING TIME
The owner is responsible for determining the
necessary length of operating
time for the pump and heat pump based upon their
Most units are sized to operate during the
pool/tank filtering cycle time of 8 to 12
hours daily, providing an even, steady flow of
heat. On warmer days the
heat pump will run less because there will be
less heat loss from your pool/tank. The
heat pump is capable of running 24 hours per day
if necessary. When you first
run your heat pump, it may need to run
continuously for 24 to 48 hours to get
the pool/tank up to the desired temperature.
While in any mode the user can lockout the keypad
by pressing and holding
the POOL/SPA button for 6 seconds. When the
keypad lockout has been
enabled all buttons are disabled and the control
will operate in whatever
mode it was in when the lockout occurred. Any
button push while in lockout
will cause the display to show LOCKOUT for 5
seconds. To unlock the
Keypad, press and hold the POOL/SPA button for 6
seconds. The display will
show UNLOCKED for 5 seconds.
The heat pump is designed to enter the defrost
cycle at ambient air
temperatures below 48° Fahrenheit. During this
cycle, the unit may shut
down and the control will display "Defrosting"
until the ambient air
temperature rises above frosting conditions.
It is normal for water to be draining from your
heat pump. This occurs because
the evaporator coil condenses the water from the
air. The water drains into
the base of the unit and out the holes that are
located on each side of the
heater at the bottom. Your heat pump can produce
1 to 3 gallons of water per
hour. The water created from the condensation
will dry up when the heat pump
CARE & MAINTENANCE
There is not much maintenance that needs to be
done on your heat pump.
Making sure there is good airflow through the
evaporator and proper
drainage are the two main tasks. A garden hose
with low-pressure water
flow can be used to clean the evaporator coil.
Make sure the heat pump has good ventilation to allow sufficient airflow.
CAUTION: Make sure all power is disconnected to
the heat pump prior
Clean the coil as needed. If located near the
ocean, cleaning will need to
be done regularly to remove salt and sand. Use a
very soft brush so as not
to bend the coil fins with soapy water to remove
any build up. Keep the
drain holes in the base free of debris to assure
Your heat pump's cabinet is made from a
maintenance-free, rust-free plastic
that is UV resistant. It will last for years and
any dirt or dust may simply be
wiped away with a cloth or sprayed off with a
water hose. The use of a
product such as Armor- All will restore its
DO NOT USE CLEANERS THAT CONTAIN ALCOHOL.
Alcohol based cleaners may damage the plastic.
In areas where freezing condition is not
prevalent and winterizing of pools is
not common, allow water to flow through the heat
pump even when not in use.
In freezing areas, it is mandatory that the water
drained from the heater and disconnected from the
heat exchanger must be blown out with air to
ensure no water in
the heat exchanger.
A simple test to verify that your heat pump is
functioning is to place your hand
above the unit. There should be cool air blowing
out the top after time
delay has expired. The return water to the
pool/tank should be a few degrees
warmer than water entering the heater. After
about 15 minutes of run
time, there should be water draining out of the
base of the unit.
If you have reason to believe your heater is not
functioning properly, follow
the troubleshooting guide below or call the
factory for service.
No power supply
or blown fuse.
fuse. If problem
call factory for
The pool pump is
on. A valve is
through the heat
filter or pump
Turn pool pump
pump and filter.
water valves. If
Ambient air is
for heat pump to
Unit will turn
back on once
ambient air rises
Call factory for
valve is turned
Clean pump and
valve is turned
Clean pump and
source of heat.
Call factory for
Call factory for
Call factory for
heating or chilling
slowly or not
getting up to
Low or restricted
flow through the
heat pump. Leak
into the water
flow. It is
Pump timer is not set for a long enough run
Pool is not being
Clean or replace
Inspect and clean
Repair air leaks.
Use a pool
pool/tank. Set pool
Water is running
out of the bottom
of the heat pump.
The heat pump
to 3 gallons per
Shut the heat
pump off for
several hours and
running. If the
water is still
call factory for
All service must be handled by an Authorized
Service Center. Warranty may
be void if a non-authorized service
representative does service. Do not
return the heat pump to your dealer, as they do
not provide service.
Before calling for assistance or service, please
check the Troubleshooting
section of this manual or call your dealer. This
may save you the cost of a
service call. If you still need help, follow the
Service can be obtained by calling us at: (888)
205-7766 and we will transfer you to the Authorized Service Center.
When asking for help or service please provide a
detailed description of the
problem, your heat pump's complete model number
and serial number, the
purchase date and dealer purchased from. This
information will help us
respond properly to your request.
Keep a copy of the sales receipt showing the date
Proof of purchase will assure you of in-warranty
G & F MANUFACTURING, INC.
The Hydro Royal Heat pumps can be used for
Aquaculture purposes. Certain installation conditions must be met so that
manufacturer's warranty will not be void for product misuse and/or improper
installation. When installing your unit make sure that you have the adequate
water pump and filter for your application. The risk of clogging your heat
exchanger is higher if you don't have the right filter for your system.
G & F Manufacturing will not be responsible for heat pump damage occurred
because of improper operation and installation.
Please contact us before installation at 1 888
205 7766 for advice.