ThermoTec 6330HC Manual

INSTALLATION & OPERATING
INSTRUCTIONS
Catalog No. 6000.551B Effective: 06-19-09 Replaces: 04-10-09 P/N 241363 Rev. 3
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and
liquids or other combustible materials in the vicinity of this or any other appliance. To
do so may result in an explosion or fire.
Model Series
5310, 6310, 6330HC & 8320
Heat Pump
Pool & Spa
Heater
USC
L
I
S
T
E
D
R
NOTE: 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 shall not attempt to install,
service, or maintain this equipment.
This manual should be maintained in legible condition and kept adjacent to the heat pump pool heater or in a
safe place for future use.

2
Rev. 3 reflects the following: Changes to: The warning note at the top of the Installation Considerations section on page
6; the diagram on page 8; Table A and Table B on page 9, The addition of: A note to the bottom of Table B on page 9; the
Heat/Cool Operation (Model 6330HC Only) section on page 12; wiring diagrams for model 6330HC on pages 23 and 24.

3
Water Chemistry
(Corrosive water voids all warranties)
For your health and the protection of your pool equipment, it is essential that your water be chemically
balanced. The following levels must be used as a guide for balanced water.
Recommended Level(s) Fiberglass Pools Fiberglass Spas Other Pool & Spa Types
Water Temp. (Deg. F) 68 to 88 89 to 104 68 to 104
pH 7.3 to 7.4 7.3 to 7.4 7.6 to 7.8
Total Alkalinity (PPM) 120 to 150 120 to 150 80 to 120
Calcium Hardness (PPM) 200 to 300 150 to 200 200 to 400
Salt (PPM) 6000 MAXIMUM 6000 MAXIMUM 6000 MAXIMUM
Free Chlorine (PPM)* 2 to 3 2 to 3 2 to 3
Total Dissolved Solids (PPM) 3000 MAXIMUM 3000 MAXIMUM 3000 MAXIMUM
*Free Chlorine MUST NOT EXCEED 5 PPM!
• Occasional chemical shock dosing of the pool or spa water should not damage the heater providing
the water is balanced.
• Automatic chemical dosing devices and salt chlorinators are usually more efficient in heated water.
Unless controlled, they can lead to excessive chlorine level which can damage your heater.
• Further advice should be obtained from your pool or spa builder, accredited pool shop, or chemical
supplier for the correct levels for your water.

4
Water Chemistry 3
Warnings 5
Pay Attention to These Terms 5
Introduction 6
Installation Considerations 6
Electrical Connections 7
Water Connections 9
Pressure Drop 9
Controls & Indicator Lamps
(Analog Models) 10
System Start-Up 11
Controls (Digital Models) 11
Digital Controls Operating
Instructions 12
To Select Pool or Spa Mode 12
To Increase the Desired Water
Temperature (Pool or Spa Mode) 12
To Lower Desired Water Temperature
(Pool or Spa Mode) 12
To Select Temperature in °C or °F 12
Heat/Cool Operation
(Model 6330HC Only) 12
System Start-Up 13
Seasonal Start-Up or
Annual Check 13
Summer Shutdown 13
Freeze Protection 13
System Drain-Down 13
Continuous Pump Operation 13
Maintenance 14
Air Coil Cleaning 14
Cabinet Care (optional) 14
Unplug Condensation Drain Holes 14
Troubleshooting 14
Service Call Verification 15
Power Supply 15
Water Flow 15
Time Clock Adjustment 15
Plumbing Diagrams 17
Wiring Diagram — 208V/230V
Single-Phase — Analog Models 19
Wiring Diagram — 208V/230V
Single-Phase — Digital Models 20
Wiring Diagram — 208V/230V
3-Phase — Analog Models 21
Wiring Diagram — 208V/230V
3-Phase — Digital Models 22
Wiring Diagram — 208V/230V
Single-Phase — Model 6330HC 23
Wiring Diagram — 208V/230V
3-Phase — Model 6333HC 24
Installing a Remote Control
Device on Analog Heaters 25
Wiring 25
Heater Settings 25
Installing a Remote Control
Device on Digital Heaters 25
Wiring 25
Heater Settings 25
CONTENTS

CAUTION: Improper chemical content in a swim-
ming pool or spa can damage the heat pump pool
heater. DO NOT add pool chemicals to the skimmer.
This will damage the heat pump pool heater and
could void the heat pump pool heater warranty.
ALWAYS follow the product manufacturer’s direc-
tions when adding any chemicals to your pool.
DANGER: Indicates the presence of immediate hazards which will cause severe personal injury, death
or substantial property damage if ignored.
WARNING: Indicates the presence of hazards or unsafe practices which could cause severe personal
injury, death or substantial property damage if ignored.
CAUTION: Indicates the presence of hazards or unsafe practices which could cause minor personal
injury or product or property damage if ignored.
NOTE: Indicates special instructions on installation, operation, or maintenance which are important
but not related to personal injury hazards.
Warnings — Pay Attention to These Terms
This manual, as well as the pool/spa heat pump pool heater 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 pool heater.
CAUTION: Elevated water temperature can be
hazardous. The U.S. Consumer Product Safety
Commission has these guidelines:
1. Spa water temperatures should never exceed
104°F (40°C). A temperature of 100°F (38°C) is
considered safe for a healthy adult. Special cau-
tion is suggested for young children.
2. Drinking of alcoholic beverages before or during
spa or hot tub use can cause drowsiness which
could lead to unconsciousness and subsequently
result in drowning.
3.
Pregnant Women Beware! Soaking in water over
102°F (39°C) can cause fetal damage during the
first three months of pregnancy resulting in the
birth of a brain-damaged or deformed child.
Pregnant women should stick to the 100°F (38°C)
maximum rule.
4. Before entering the spa or hot tub, users should
check the water temperature with an accurate
thermometer; spa or hot tub thermostats may err
in regulating water temperatures by as much as
4°F (2.2°C).
5. Persons with a medical history of heart disease,
circulatory problems, diabetes, or blood pressure
problems should obtain a physician's advice
before using pools or hot tubs.
6. Persons taking medications which induce drowsi-
ness, such as tranquilizers, antihistamines, or
anticoagulants, should not use spas or hot tubs.
5

Introduction
This manual contains important information on the
use, maintenance and troubleshooting of your new
heat pump pool heater. This unit must be properly
installed, maintained and operated for optimal per-
formance.
This heat pump pool heater is an extremely efficient,
economical machine designed specifically for swim-
ming pool heating. It is similar in design and operation
to a typical residential air conditioning system. The unit
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 heat pump pool heaters, compared to other
types of heaters such as gas or oil-fired, this heat
pump pool heater has lower heating capacity on a
BTUH/hr basis. As a result, it will be required to oper-
ate 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.
Place a cover or blanket over the pool at night and
other non-use periods. This will keep evaporation, the
cause of main heat loss, to a minimum, and will great-
ly reduce pool heating costs. During warmer weather,
the cover may be required only at night.
Installation Considerations
Situate the heat pump pool heater carefully to mini-
mize installation costs while providing maximum
efficiency of operation, and to allow adequate service
access, as follows:
• For unrestricted air intake and service access,
position each side of the unit at least 1 ft (30 cm)
from walls, pipes and other obstructions.
• Recirculation of cold discharge air back into the
evaporator coil will greatly reduce the unit’s heat-
ing capacity and efficiency.
• This unit features an ‘up-flow’ discharge for quiet
operation. Air is pulled up through the evaporator
coil and discharged through the top grill. Allow at
least 5 ft (1.5 m) clearance above the unit for unre-
stricted air discharge. DO NOT install the unit
under a porch or deck. Refer to Fig. 1.
• To minimize water piping, locate the unit as close
as possible to the existing pool pump and filter.
WARNING: This pool/spa heat pump pool heater is
an electromechanical machine that incorporates a
pressurized refrigerant gas in a sealed system.
ONLY trained and qualified service personnel are
authorized 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.
WARNING: Do not install the unit within 3 ft of
fossil fuel burning heaters. Air intake along the
sides of this heat pump pool heater 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 at least 3 ft by 3 ft.
• You must install the 4 black rubber sound iso-
lation pads (each 2 inches square) that ship with
the unit. The pads are shipped in a bag with the
unions, gaskets and the I&O manual. Install pads
under the 4 corners of the unit to reduce vibra-
tion and sound transmission to the base.
CAUTION: The unit’s supporting base must be high
enough to keep it completely free of standing water
at all times.
WARNING: This unit is designed for outdoor instal-
lation; DO NOT install it in an enclosed area such as
a shed or garage.
6

7
Fig. 1: Installation Clearances
• When installed in areas where freezing tempera-
tures can be encountered, drain the water circuit
to prevent possible freeze-up damage. See the
Freeze Protection Section.
• For high wind installation requirements, refer to
the diagram on page 8.
Electrical Connections
Refer to the unit rating plate below the control panel for
precise power requirements for your 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. Wiring diagrams are
located on pages 19 through 24.
• Locate the equipment disconnect means within 3
feet of the heater’s electrical enclosure, or as
close to the heater as possible. Always satisfy
applicable codes and standards.
• In sizing power wiring, be especially aware of up-
sizing requirements necessary due to wiring
distances. Always satisfy applicable codes and
standards.
• Electrical installation should be done by a licensed
electrician only.
NOTE: Refer to the National Electrical Code, Article
680, for general requirements for swimming pools
and equipment, and to Article 440 for special consid-
erations necessary for circuits supplying hermetic
refrigeration motor/compressors.

8

9
This unit is pre-wired to work with external control sys-
tems, heat-on-demand options and other external time
clock overrides. Refer to the external control system’s
instructions, and page 22 of this manual, for installa-
tion information.
Water Connections
1. Connect the heat pump pool heater in the return
water line between the filter and the pool/spa. See
the Plumbing Diagrams beginning on page 16.
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/spa. Unit inlet/outlet con-
nection fittings are 2-inch PVC unions.
Water connections from the unit 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/spa circulation pip-
ing.
4. In cold weather (freeze zone) areas, shutoff valves
(ball or gate type) must be installed at the unit inlet
and outlet to facilitate service and cold weather
drain-down.
5. Operate the pump and check the system for leaks.
Pressure Drop
For system pressure drop information, refer to Table B
below.
CAUTION: The heat pump pool heater inlet and
outlet connections are NOT interchangeable. They
must be connected as instructed below.
Fig. 2: Water Connections
WATER IN
WATER OUT
Table B: Pressure Drop Across Heat Pump Pool Heater
Flow
(gpm)
Pressure Drop (psi)
5310 6310/6330HC 8320
30 4 6 9
40 7 9 9
50 10 10 10
60 11 11 11
70 12 12 12
80 13 13 13
Model No. VAC in - Phase - Hz Minimum Circuit
Ampacity (A)
Maximum Breaker
Size (A)
5310 208/230 - 1 - 60 38.2 50
6310/6330HC 208/230 - 1 - 60
208/230 - 3 - 60
33.45
25.45
60
50
8320 208/230 - 1 - 60
208/230 - 3 - 60
37.45
33.3
60
60
Table A: Typical System Electrical Power Requirements
Note: Multiply the pressure drop in psi by 2.3067 to yield the pressure drop in Ft. H2O Head (TDH).

10
Controls & Indicator Lamps
(Analog Models)
Your analog heat pump pool heater incorporates safe-
ty controls and indicators to ensure its safe, reliable
operation (for models with digital controls, see page
11).
Water Pressure Switch: Prevents operation when the
pump is OFF. The unit requires 5 psi minimum pres-
sure.
Water Temperature Control: Pool/spa water temper-
ature is controlled by the heat pump pool heater
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 tem-
perature. The switch can operate an optional external
control system, or can switch between thermostats for
pool or spa.
Defrost Switch: Prevents heat pump pool heater
operation if ambient air temperature falls below a pre-
determined 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 circuit interruptions, this solid
state device will prevent compressor restart for
approximately 5 minutes.
Refrigerant Low Pressure Control: Stops the com-
pressor if refrigerant suction (low side) pressure falls
too low as a result of a malfunction, loss of charge or
extreme cold conditions.
Indicator Lamps: There are 6 indicator lamps located
on the unit control panel (see Fig. 3 below):
• Power (amber lamp): When lit, indicates power is
applied to the unit.
• Water Flow (green lamp): When lit, indicates nor-
mal water flow.
• Heat Demand (green lamp): When lit, indicates
the actual water temperature is below the target
water temperature.
WARNING: Install a check valve and/or a Hartford
loop AFTER the heat pump pool heater and
BEFORE any chlorinating devices. Install any auto-
matic chemical feeders AFTER the heat pump pool
heater. Improper installation of any type of auto-
matic chemical feeders can result in serious
damage to, or premature failure of, the heat
pump pool heater and will void the heat pump
pool heater warranty.
NOTE: The heat pump pool heater will not run when
the Remote position is selected on the Pool/Spa
selector switch and there is no remote control sys-
tem attached.
Fig. 3: Indicator Lamps — Analog Models
NOTE: The heat pump pool heater will not run when
the Remote position is selected on the Pool/Spa
selector switch and there is no remote control sys-
tem attached.

11
• Compressor Delay Active (amber lamp): Under
normal operation, when lit, indicates compressor
anti-short cycle timer is active. The fan will run but
the compressor will be OFF for 6 to 8 minutes.
• Defrost Active (red lamp): When lit, indicates unit
is in defrost mode. Defrost mode occurs when ice
starts to form on the outside coil. The fan will con-
tinue to run but the compressor will stay OFF (not
heating) until weather conditions improve.
• Low Pressure (red lamp): When lit, indicates fail-
ure in the refrigeration circuit. When this lamp is
ON, service is required. Call for service assis-
tance.
System Start-Up
1. Verify that the Power lamp is ON and that the
pool/spa pump is running and circulating properly.
2. Verify that the control panel Spa-Remote-Pool
switch is in the Remote (OFF) position; see Fig. 4
below.
3. Turn the control switch to either Pool or Spa to
turn the system ON and raise the thermostat set-
ting above the current water temperature. At this
time the 2 green lamps should illuminate. The fan
and compressor should start up and run simulta-
neously.
4. Allow the heat pump pool heater to operate for a
few minutes to stabilize operating pressures and to
allow various component temperatures to normal-
ize.
5. Verify that the discharge air temperature is approx-
imately 8°–10° cooler than the air entering the unit.
If not, see the Troubleshooting Section.
Controls (Digital Models)
Your heat pump pool heater incorporates digital safety
controls and indicators to ensure its safe, reliable
operation (for models with analog controls, see page
10).
Water Pressure Switch: Prevents operation when the
pump is OFF. The unit requires 5 psi minimum pres-
sure.
Digital Water Temperature Control: The pool water
temperature is controlled by the heat pump pool
heater’s digital control system, which gives you the
option of two settings: one for the desired spa temper-
ature and the other for the desired pool temperature.
Additionally, as mentioned earlier, the unit is compati-
ble with most ‘2-wire’ and ‘3-wire’ control/automation
systems.
Defrost Sensor: Prevents unit operation if ambient air
temperature falls below a predetermined safe mini-
mum (approximately 42°–48°F, based on humidity).
The compressor will shut OFF but the fan will continue
to run.
Delay Timer: Prevents compressor from short cycling,
which could damage or destroy the hermetic
motor/compressor. Upon water temperature control
satisfaction, or other circuit interruptions, this solid
state device will prevent compressor restart for
approximately 5 minutes.
Fig. 5: Digital Water Temperature Control
Fig. 4: Selector Knobs — Analog Models
NOTE: The heat pump pool heater will not run when
the Remote position is selected on the Pool/Spa
selector switch and there is no remote control sys-
tem attached.

12
Digital Controls Operating
Instructions
The electronic board has the capability of memorizing
two different programmed temperature settings as fol-
lows (refer to Fig. 5):
• For a pool, maximum 95°F (35°C)
• For a spa, maximum 104°F (40°C)
To Select Pool or Spa Mode
To have access to either one of these programs, press
the SET key until you see P _S and by pressing the
UP or DOWN key you can switch to POL or SPA.
To Increase the Desired Water
Temperature (Pool or Spa Mode)
Push the SET key until you see POL or SPA. The pro-
grammed temperature will be displayed. Press the UP
arrow to increase the temperature setting one degree
at a time.
To Lower the Desired Water
Temperature (Pool or Spa Mode)
Push the SET key until you see POL or SPA. The pro-
grammed temperature will be displayed. Press the
DOWN arrow to decrease the temperature setting one
degree at a time.
Once the control has been programmed to the desired
pool water temperature, the programmed temperature
will be displayed for approximately 5 seconds. Then
the digital display will display the actual pool water
temperature.
To make the Board a Pool ONLY Board, call 800-
375-7378 for instructions.
To Select Temperature in °C or °F
Press the SET key until you see F _C. By pressing the
UP or DOWN key you can switch to °F or °C. Once the
temperature display mode has been programmed it
will be displayed for approximately 5 seconds, then
the digital display will return to the actual pool water
temperature in the mode that you have chosen.
Heat/Cool Operation (Model
6330HC Only)
The heat/cool model is designed to both heat and cool
the pool. To select heat or cool mode, push the SET
key until H/C is displayed. Press the DOWN arrow key
to select heating (hea), or the UP arrow key to select
cooling (col). Set the desired setpoint temperature as
described earlier in this manual.
When the unit has been operating in the heating mode
for a few minutes, the discharge air temperature
should be 8°–10°F cooler than the air entering the unit.
When the unit has been operating in the cooling mode
for a few minutes, the discharge air temperature
should be 8°–10°F warmer than the air entering the
unit.
NOTE: Once the control has been programmed to
the desired pool water temperature, the pro-
grammed temperature will be displayed for
approximately 5 seconds. The digital display will
then show the actual pool water temperature.
NOTE: Remove the pool/spa blanket and turn on
any fountains, sprays or other water features to
speed cooling.
NOTE: Heating is more efficient during warmer day-
light hours and cooling is more efficient during cooler
night time hours.

13
System Start-Up
1. Verify that the Digital Board is displaying a temper-
ature and the pool pump is running and water is
circulating properly.
2. Verify that the Board is programmed so that the
desired temperature of the Pool and Spa is higher
than the displayed current water temperature.
3. Allow the heat pump pool heater to operate for a
few minutes to stabilize operating pressures and to
allow various component temperatures to normal-
ize.
4. Verify that the discharge air temperature is approx-
imately 8°–10°F cooler than the air entering the
unit. If not, see the Troubleshooting Section.
Seasonal Start-Up or Annual
Check
1. Remove leaves, pine needles, etc., from the evap-
orator coil. Clean the coil by gently applying a mild
solution of household liquid soap and water.
2. Gently rinse the coil with water; DO NOT use high
pressure.
3. Backwash or otherwise clean the pool filter. If nec-
essary, clean the skimmer basket and pump
strainer.
4. Set the valves to ensure proper water flow through
the unit.
NOTE: At the beginning of the heating season, or
whenever the pool water temperature is to be raised
several degrees, the pool pump and heat pump pool
heater may need to operate continuously for several
days. During summer months, only a few hours per
day may be necessary, or none at all.
NOTE: If the pool pump and heat pump pool heater
shut OFF before the water temperature is raised to
the desired level, you must lengthen the running time
of both. To do this, reset the time clock dial for the
longer running time, or manually operate the pump
with the timer override switch. Since the heat pump
pool heater capacity and efficiency are both greater
at higher ambient air temperatures, run time should
be set to take advantage of all daylight hours, when
the air is generally warmer.
Summer Shutdown
If you do not plan to use the heat pump pool heater
during the summer months, secure and protect it as
follows:
1. Turn the unit circuit breaker or disconnect switch to
OFF.
2. Leave the valves set the way they are unless addi-
tional circulation is required. DO NOT stop all flow
through the heat pump pool heater.
3. IMPORTANT: Remember to reset the valves
before the next heating season, or the unit will not
operate properly.
Freeze Protection
If the unit is installed in a location subject to freezing
conditions, it is important to protect the water circuit
from freezing, just as should be done for the pump and
filter.
System Drain-Down
1. Turn the unit circuit breaker or disconnect switch
to OFF.
2. With the pool pump OFF, close the external shut-
off valves and loosen the inlet and outlet water
unions to allow water to drain. Use a Wet/Dry Vac
or air pressure to remove excess water.
3. Loosely re-attach the unions.
4. Cover the unit with a waterproof cover.
Continuous Pump Operation
It is also possible in some areas to prevent unit freeze
damage by operating the pump continuously during
freezing weather. However, this results in significantly
higher pump operating costs. Further, if a sustained
power failure occurs, the unit MUST be drained any-
way, or freeze damage could result.

14
Troubleshooting
If your unit does not operate, or simply does not heat
your pool water, Fault Codes (digital models), or the
indicator lamps (analog models) on the front control
panel, can provide valuable clues as to what is wrong,
and may even indicate precisely what the problem is.
Always observe these codes (or lamps) before calling
a service representative. By reporting on the tele-
phone the Fault Codes (or which lamps are ON or
OFF) that are showing, the service rep may be able to
solve the problem without the expense of a service
call.
A. UNIT IS RUNNING, BUT NOT HEATING
•Is water flow through the unit adequate? Check
the unit for obstructions, such as a clogged filter
pump strainer, a dirty filter, or valves not posi-
tioned correctly.
• Is the ejected air from the unit 8°–10°F cooler than
incoming air? If so, the unit is extracting heat from
the air and transferring it to the pool.
•Is water condensing on the evaporator and inter-
nal copper pipes? This is also evidence of heat
removal from the air. When the air is cool with low
humidity, condensation may not be evident.
• How long has the unit been operating? During ini-
tial pool heating in cold weather, it may require a
week to elevate the water temperature to a com-
fortable level. Normally, it takes about 4 days.
How many hours per day is the unit operating?
Remember that the heat pump pool heater only
operates while the pool pump is running. Set the
time clock to permit 24 hour per day operation. After
the desired temperature is reached, return the unit to
normal operation of 8–10 hours per day.
•Is airflow through the unit being obstructed?
Restrictions such as shrubbery, tall grass, dirty
NOTE: If the pool pump and heat pump pool heater
shut OFF before the water temperature is raised to
the desired level, you must lengthen the running time
of both. To do this, reset the time clock dial for the
longer running time, or manually operate the pump
with the timer override switch. Since the unit capaci-
ty and efficiency are both greater at higher ambient
air temperatures, run time should be set to take
advantage of all daylight hours, when the air is gen-
erally warmer.
Maintenance
The following maintenance procedures are designed
to keep your unit operating at a high level of reliability.
Maintenance must be performed on a periodic
basis to maintain warranty coverage and prevent
system failures and performance degradation.
Air Coil Cleaning
Efficient operation depends on free circulation of air
through the thin and tightly-spaced fins of the evapo-
rator coil(s). The evaporator must be cleaned
whenever it has a buildup of dirt or debris.
Cabinet Care (optional)
The cabinet is designed for outdoor use and requires
little care. However, you can clean it if you wish.
Wash the cabinet with soap and water.
Unplug Condensation Drain Holes
The unit extracts humidity from the air as it passes
through the coil, similar to the way a cold drink outside
“sweats” on a hot day. This condensation drains from
the bottom of the unit.
1. Routinely check to be sure the condensation drain
holes in the base of the unit are not plugged with
dirt or debris.
2. If condensation becomes a problem, optional drain
pans are available from your heat pump pool
heater distributor or pool dealer.
WARNING: Shut OFF electricity to the unit before
cleaning.
NOTE: The heat pump pool heater MANUFACTUR-
ER IS NOT RESPONSIBLE for maintenance
adjustments.
CAUTION: To clean the fins, spray gently with a
garden hose. DO NOT pressure wash. Doing so
will bend the fins and can void the warranty.

15
coils, or any other obstruction to airflow will reduce
performance.
• Is the pool blanket/cover being used?
Unblanketed pools can lose up to 10 degrees per
night compared to 4 degrees or fewer when a
blanket is used. Without a blanket, the total heat
gained during the day can be lost overnight.
•Are rapid heat losses occurring in some other way,
such as high wind, spillage, rainfall, flow through
solar panels at night, or a high water table?
B. UNIT IS NOT RUNNING
•Is the temperature display or control panel Power
lamp ON? If not, the circuit breaker may be shut
OFF or tripped. Reset the breaker by switching it
OFF, and then back ON. Verify that the breaker
is set and operating properly before calling for
service.
•Is the thermostat setting and the Pool/Spa setting
correct? Verify that the temperature has been
properly set on the thermostat, and that it is high-
er than the current water temperature. On analog
units, all 3 lamps should be illuminated and the fan
should begin to run.
•Have you waited approximately 5 minutes for the
time delay? After the unit has been running and
then shut OFF for any reason, there is a delay
before operation can begin again.
•Is the Heat Light or Heat Demand lamp ON? If
not, then the thermostat setting is not higher than
the temperature of the water. Raise the thermostat
setting.
C. CONDENSATION SEEMS EXCESSIVE
Heat pump pool heaters can produce a large amount
of condensation (water) during operation. If you sus-
pect that the unit is leaking:
a. Use a pool chemistry test kit to confirm there is no
chlorine in the condensation. Or,
b. Shut the unit OFF and leave the filter pump run-
ning to see if the water stops dripping. If the water
stops dripping, the unit is not leaking.
NOTE: The heat pump pool heater will not run when
the Remote position is selected on the Pool/Spa
selector switch and there is no remote control sys-
tem attached.
Service Call Verification
Before you make a service call, first determine if the
problem is:
•Warranty Service
•Unit operation (power supply, water flow, or time
clock adjustment)
Power Supply
•Verify that all circuit breakers are reset and work-
ing properly.
•If the temperature display or the Power lamp on
the control panel still does not light, contact the
installing dealer, since it may be a power problem
requiring an electrician.
NOTE: The MANUFACTURER IS NOT RESPON-
SIBLE for these adjustments.
Water Flow
•Verify that the pool filter is clean to provide good
flow.
•Verify that valves are properly positioned to allow
adequate water flow through the unit.
•If the Water Flow lamp (analog models) on the
control panel still does not light, and water is circu-
lating in the pool, verify that all valves are
positioned correctly.
Time Clock Adjustment
Verify that the time clock is set to permit the unit to run
long enough to heat properly.

16
Fault Code Meaning of Code
OFF The desired programmed temperature point is lower than 60°F (15°C).
LP & LP3
Shortage of refrigerant gas in the unit or faulty low pressure control. The unit will show
(LP3) after 3LP faults and shuts down the unit and pool pump for protection. If this occurs,
you should call for service.
HP & HP3 Low water flow in the unit or faulty high pressure control. Check water flow/backwash. The
unit will show (HP3) after 3 HP faults. This will stop the unit for protection.
FLo & FL3
Possible causes:
• The filter is in backwash position.
• The filter pump is stopped.
• The filter is dirty.
• Shortage of water to pool pump.
• FIL parameter must be set to activate pool pump.
• Water pressure switch must be adjusted or it is broken.
• The unit is in the protection mode and will show (FL3), press any key to restart the unit.
FL3 code will stop the unit and pool pump.
FS Unit is in the defrosting cycle.
(The fan works but the compressor is stopped.)
- - Keypad is pressing down on both buttons. Replace keypad.
Table C: Control Board Fault Codes — Digital Models

17
Plumbing Diagrams
Water In
(from pool
or spa)
Water Out
(to pool
or spa)
Filter
Fig. 6: For systems with pumps of less than 2 HP (under 80 gpm), no external
bypass is required. Connections are 2-inch unions. Plumb the heat
pump pool heater AFTER the filter and BEFORE any chlorinators.
Water In
(from pool
or spa)
Water Out
(to pool
or spa)
Filter
Fig. 7: For systems with pumps of 2 HP or greater (over 80 gpm), an external
bypass is required. Adjust the bypass valve to divert a minimum of 40
gpm through the heat pump pool heater. Connections are 2-inch unions. Plumb the
heat pump pool heater AFTER the filter and BEFORE any chlorinators.

18
UNITS UNITS UNITS
Fig. 8: Pool Piping for Heat Pump Pool Heater and Gas Pool Heater
Fig. 9: Pool Piping for Heat Pump Pool Heaters, Multiple, Primary/Secondary

19
FACTORY STANDARD
FIELD INSTALLED
LINE VOLTAGE
LOW VOLTAGE
FACTORY STANDARD
FACTORY OPTION
WIRING INFORMATION
USE TERMINALS 21 & 22 TO ATTACH 2 WIRE CONTROL SYSTEMS THAT HAVE THIER
OWN SENSORS FOR TEMPERATURE CONTROL.
USE TERMINALS 22 , 23 & 24 TO ATTACH 3 WIRE CONTROL SYSTEM THAT
UTILIZE OUR TEMPERATURE SENSOR FOR TEMPERATURE CONTROL.
TO ENGAGE AN EXTERNAL CONTROL SYSTEM PUT THE
POOL-REMOTE-SPA SWITCH IN THE REMOTE POSITION
2. 75º 4.73K
77º 4.25
84º 2.44K
T-STAT RATED @
SENSOR RATED
75º 10.5K
77º 10K
84º 8.50K
1.
@
3. TRANSFORMER WIRED FOR 240V,
MOVE RED WIRE TO 208 TER. FOR
208V
NOTES: HAVE A QUESTION ?
CALL 800-375-7378
DWG NUMBER
REV
BK BLACK
BR
BL
BROWN
BLUE
GGREEN
GY GRAY
OORANGE
PPINK
PR PURPLE
RRED
TTAN
WWHITE
YYELLOW
WIRE COLOR CODE
COMPRESSOR M
Y
R
BL
24 V
C
S
R
FAN
MOTOR
GR
7
9
8
10
11
4
6
5
1
3
2
12
1
5
4
23
POWER SUPPLY
208/230 V - 1 PHASE - 60 HZ
A
B
C
D
11
22
23
24
T
S
C
P
2 amp
FUSE
14 10
75
ED
B
TRANSFORMER
16
AC
R
M
R
T
T
SPA
POOL
15
24 Volts AC
HPS
WPS
21
BK
BK/W
BK
BK BK
BK
O/R
BK
W
OW
BK BK
BK/GY
6
T
T/BK
BK BK
P
P/BK
W
W
W
W
BK/GY
GY
R
R/BL
R/BL
BK/R
W
BK
BK
W
W
PR
BK
BR R
BK
BK
123
12
3
2.
2.
BL
BK
R
R
SWITCH
SPA / REMOTE / POOL
SHOWN IN POOL POSITION
3.
240V 208V
USE COPPER CONDUCTORS ONLY
TORQUE SCREWS : 40 LB - IN
USE 75 ° C 600 V WIRE
LPS
COMPRESSOR
CONTACTOR
M
FAN RELAY
T-STAT
WPS WATER PRESURE SWITCH
CAPACTIOR
LED
TER. STRIP
APOWER
B
C
D
E
F
HEAT
WATER
COMPRESSOR
DEFROST
L/P SWITCH
LEGEND
L E D'S
R
T
HPS
RED
RED
AMBER
GREEN
GREEN
AMBER
REMOTE CONTROL
FIELD CONNECTIONS
USE COPPER CONDUCTORS ONLY
USE 75 ° C 600 V WIRE
LOW PRESURE SWITCH
HIGH PRESURE SWITCH
COIL
[CONTACTOR,FAN RELAY]
DEFROST
SWITCH
3
1
2
Delay Timer
F
LPS
9
BL
BK
8
BK
BK/BL
12
13
BK
GY/BK
SEN
N.C.
SEN
24 VAC
COM
24 VAC
HOT
N.O.
C
POT 1
POT 2
WATER SENSOR
1.
TEMP. CONTROL
BOARD
BL
W
GY
GY
BK/R
BK
POOL HEAT PUMP
5310, 6310, 8320
082708 00-11029
Wiring Diagram — 208V/230V Single-Phase — Analog Models

20
FACTORY STANDARD
FIELD INSTALLED
LINE VOLTAGE
LOW VOLTAGE
FACTORY STANDARD
FACTORY OPTION
WIRING INFORMATION HAVE A QUESTION ?
CALL 800-375-7378
DWG NUMBER
REV
BK BLACK
BR
BL
BROWN
BLUE
G GREEN
GY GRAY
O ORANGE
PPINK
PR PURPLE
RRED
TTAN
WWHITE
YYELLOW
WIRE COLOR CODE
WS DS AS PS
208V240V
TRANSFORMER
13 12 11
10
9
8
7
2
3
1
HPS 6
LPS
WPS
15
16
24 V H. O. D.
21
22
23
24
COMPRESSOR M
Y
R
BL
C
S
R
FAN
MOTOR
GR
NC
NO
COM
FR
1718
19
20
4
5
12V
12V
FR
BK
R
BKR
BK
T
BL
R
BK
O
BK
BK
BK BK BK BK
R
BK
BL
BL
O/BK
O
BL
W
R
BL
R
W
P
BL
BL
O/BK O
P
W
R
1.
12 012
HP SPR1
LP SPR2
REVR
FLO
JANDY
PUMP
AC F1 F2 F3
COMP
POOL HEAT PUMP,SCROLL COMPRESSOR
DIGITAL CONTROL
PR
2 amp
FUSE
M
01-0669
072606
USE COPPER CONDUCTORS ONLY
TORQUE SCREWS : 40 LB - IN
USE 75 ° C 600 V WIRE
POWER SUPPLY
208/230 V - 1 PHASE - 60 HZ
TRANSFORMER WIRED FOR 240V,
BLACK & ORANGE WIRE FOR 240V,
BLACK & RED WWIRE FOR 208V
1.
NOTES:
LEGEND
LPS
HPS
COMPRESSOR
CONTACTOR
M
CAPACTIOR
TER. STRIP
COIL
[CONACTOR, FAN &
POWER DEFROST ]
FR FAN RELAY
WATER PRESURE SWITCHWPS
LOW PRESURE SWITCH
HIGH PRESURE SWITCH
REMOTE CONTROL
FIELD CONNECTIONS
T
C
S
P
~~
USE TERMINALS 21 & 22 TO ATTACH 2 WIRE CONTROL SYSTEMS THAT HAVE THIER
OWN SENSORS FOR TEMPERATURE CONTROL.
SET POOL TEMPERATURE TO OFF AND SET SPA TEMPERATURE TO 104
2 WIRE REMOTE CONTROL
Wiring Diagram
208V/230V
Single-Phase
Digital Models