aquatherm Calorex AT500 User manual

© 2004 Aquatherm Heat Pumps
NOTICE:
Specifications may change without notice.
SWIMMING POOL
& SPA HEAT PUMPS
INSTALLATION
& OPERATION MANUAL
2213 Andrea Lane Ft. Myers FL 33912
888-297-3826 239-482-0606
www.aquathermheatpumps.com
INFORMATION
PLACEMENT
PLUMBING
ELECTRICAL
MEMBER
NATIONAL
POOL & SPA
INSTITUTE
HEAT PUMP
OUT IN
FILTER
WATER
PUMP
TO
SPA JETS
TO SPA
SPILLOVER
CHLORINATOR
TO POOL
RETURN
SPA
SPA
POOL
POOL
Jandy™
3-Way Valve VERTICAL
CHLORINATOR
LOOP
FROM
SPA
SUCTION
FROM
POOL
SKIMMER
SUCTION
FROM
POOL
FLOOR
SUCTION
Model AT500
calorex usa, llc
A Division of Aquatherm Heat Pumps

A. Unit Description & Technical Specifications...................................... Page 2
B. Heat Pump Placement & Clearances.................................................. Page 3
C. Plumbing & Water Connections ................................................. Pages 4 - 5
1. Basic Plumbing
2. Chlorinator & Chemical Feeder Requirements
3. Freezing Condition Plumbing Requirements
4. Bypass Requirements Over 70 G.P.M.
5. Multi Unit Water Connections
6. Pool/Spa Combination Plumbing
7. Plumbing with Solar
8. Plumbing Above or Below Water Level
D. Electrical Connections/Data Plate ..................................................... Page 6
E. Control Panel Information.................................................................. Page 6
F. How to Operate Your Heat Pump.................................................Page 7-10
G. Maintenence....................................................................................... Page 10
H. Troubleshooting..................................................................................... 10-11
1. Is it heating?
2. Pool/Spa combo heating
3. Spa heating
H. Troubleshooting Flow Charts ..............................................................12-14
2213 Andrea Lane Ft. Myers FL 33912
888-297-3826 239-482-0606 Fax [phone]
www.aquathermheatpumps.com
TABLE OF CONTENTS
1.
calorex usa, llc
A Division of Aquatherm Heat Pumps

AIR DISCHARGE FAN
WARNING: ROTATING BLADE
KEEP HANDS & HAIR CLEAR!
THERMOSTAT
CONTROLS
WATER OUT
2” MALE THREADED
UNION
WATER IN
2” MALE THREADED
UNION
SERIAL
NUMBER
PLATE
ELECTRICAL
INSTALLATION
PORT(S)
A. UNIT DESCRIPTION
2.
TECHNICAL SPECIFICATIONS
HEAT OUTPUT................................................. 102,000 BTU/HR*
COEFFICIENT OF PERFORMANCE......................................4.6*
VOLTAGE/HZ/PHASE ........................................................... 1 PH
MIN/MAX BREAKER ............................................................50/70
MIN/MAX WATER FLOW .....................................................20/70
DIMENSIONS................................................32”H X 34”W X 33”L
SHIPPING WEIGHT ........................................................ 295 LBS

AIR
COIL
BACK
9"
12"12"
36"
48"
TOP
FRONT
2" 6 FT
1. To allow for proper condensation
drainage, use a level slab to elevate
the heat pump to at least the same
height as the pool filter system slab,
or 2 to 3 inches minimum above
grade.
2. Allow the minimum air flow clear-
ances on top and the sides as shown
here. Do not install indoors or where
the discharge air can accumulate and
be drawn back through the heater.
Make sure the front is accessible
for future service.
3. Keep sprinkler heads at least 6 feet
away from the heat pump. Do not
allow the sprinkler to spray the unit
in any way to prevent damage.
4. If the unit is installed under a roof
overhang or under a roof valley, a
gutter or diverter should be fitted to
prevent excessive water from pour-
ing through the unit.
5. Keep all plants and shrubs trimmed
away from the heater to the mini-
mum clearances shown here to
prevent air coil damage.
BASE
CONCRETE OR
PREFAB
Minimum Air Flow
& Access
Clearances
B. HEAT PUMP PLACEMENT & CLEARANCES
AIR COIL
AIR FLOW IN
ON 3 SIDES
FAN DISCHARGE
AIR FLOW OUT
WATER IN/OUT PORT
INDICATOR LABEL
2”THREADED MALE
PIPING CONNECTIONS
3.
12”

2. CHOLORINATOR. Be sure to install a CHEMICAL TRAP LOOP as shown. The loop should
be at least 6 to 8 inches above the chlorinator/feeder top to prevent chlorine backup into the heater
when the water pump is off. All feeders should be installed at the same or below the heater piping
elevation to prevent chemical back up into the heater.
DO NOT install the heater down stream from any chemical feeders.
DO NOT allow chemical feeders on the suction side of the water pump.
DO NOT allow any chemicals or chlorine to be fed through the skimmer.
DO NOT allow the pool water pH to go below 7.4.
DO NOT allow the alkalinity to go below 90 p.p.m.
DO NOT allow the chlorine to go above 5 p.p.m. for extended periods. Chemical damage is not
covered by warranty.
4. BYPASS FOR FLOW RATES OVER 70 G.P.M. Typi-
cally the automatic internal water bypass can handle up to a
1.5 H.P. water pump or 70 G.P.M. If the water pump exceeds
1.5 H.P. then install either of the optional bypasses as shown
below. The installation of a flow meter on the WATER OUT
line is suggested. Adjust the bypass to divert a minimum of
40 to 50 G.P. M. through the heater. Flow meters should be
installed per the manufacturer’s instructions.
1. BASIC PLUMBING. For a pool only or spa only, install the plumbing piping as shown:
Connections from factory are 2” unions (included). Water IN on the RIGHT, Water OUT on
the LEFT.
PLUMB AFTER the FILTER & BEFORE any CHLORINATORS or CHEMICAL FEEDERS
C. PLUMBING & WATER CONNECTIONS
3. FREEZING CONDITION PLUMBING. In areas where extended
freezing conditions exist, the heater must be plumbed as shown so it
can be winterized. Water left inside the heater will freeze and cause
damage. Plumb in a union, shut off valve, a boiler drain and a air petcock
valve on the water in and water out lines as shown here. Isolate the
heater with the shut off valves and use pressurized air to clear the heat
exchanger of all water. In areas where freezing conditions are temporary,
the water pump should be set to run 24 hours to prevent freezing. Freeze
damage will void warranty.
5. MULTI UNIT WATER CONNECTIONS
Plumb multiple units as shown below. Use flow meters on each
WATER OUT line if two or more units are plumbed together.
Use ball valves to balance the water flow through each unit.
Using T’s, caps and a minimum 6 inch pipe extension on the
plumbing manifold will help equalize the water flow better than
90˚’s. Flow meters should be installed per the manufacturer’s
instructions.
CHEMICAL FEEDER
TRAP LOOP
TO
POOL
CHLORINATOR PUMPS OVER 70 GPM
6" TO 8"
HEAT
PUMP
FILTER
FROM
POOL
WATER
PUMP
OUT IN
OUT IN
BOILER
DRAIN
AIR
PETCOCK
FROM
FILTER
TO
POOL
SHUT
OFF
VALVE
UNIONS
OUT OUT
IN IN
FLOW
METER
TO
POOL TO
POOL
FROM
FILTER
FROM
FILTER
FLOW
METER
TOP VIEW
TOP VIEW
OUT OUT IN IN
BALL
VALVE
FLOW
METER
TO POOL
FROM
FILTER CAP
& 6" OF PIPE
4.

C. PLUMBING & WATER CONNECTIONS
6. POOL/SPA COMBINATIONS W/SPILL-OVER
Use this diagram for a connected pool and spa, where the spa has a spill-over type waterfall into
the pool. Where
one pump and
one heater are
used for both
the pool and
spa. If the water
pump exceeds
1.5 H.P. then in-
stall a external
bypass as shown
on page 5.
HEAT PUMP
OUT IN
FILTER
WATER
PUMP
TO
SPA JETS
TO SPA
SPILLOVER
CHLORINATOR
TO POOL
RETURN
SPA
SPA
POOL
POOL
Jandy™
3-Way Valve VERTICAL
CHLORINATOR
LOOP
FROM
SPA
SUCTION
FROM
POOL
SKIMMER
SUCTION
FROM
POOL
FLOOR
SUCTION
OFF
OFF
JANDY ™
HEAT PUMP
INOUT
CHLORINATOR
TO POOL
RETURN
FROM
POOL
SKIMMER
SUCTION
FROM
POOL
FLOOR
SUCTION
VERTICAL
CHLORINATOR
LOOP
MOTORIZED
SOLAR
VALVE
FROM
SOLAR
TO
SOLAR AUTOMATIC
SOLAR
CONTROL
DEVICE
WATER
PUMP
FILTER
7. PLUMBING WITH SOLAR.
Plumbing for a system where a solar pool
heater is installed. It is strongly advised
that an automatic solar
control device be used
when used with the
heat pump. If the water
pump exceeds 1.5 H.P.
then install either of
the optional bypasses
as shown on page 5.
The heat pump and
solar can be operated
together. The heat
pump will share the heating load with the solar.
If the solar is operated on cloudy days, while rain-
ing, at night or at low air temperatures, it may cool
the pool or spa. An automatic solar control will shut
the solar off when there is no solar heat gain, otherwise
it should be shut off manually during these times.
To use the heat pump as a backup to the solar, set the heat pump thermostat 2 to 4 degrees below
the solar’s target temperature setting. Therefore, if the solar is not maintaining water temperature,
the heat pump will come on to assist the solar. Some thermostat fine tuning may be required by the
user.
8. PLUMBING ABOVE OR BELOW POOL WATER LEVEL
5.
SEE CHLORINATOR LOOP & CHECK
VALVE REQUIREMENT ON PAGE 5.

(Refer to wiring schematic on inside of access panel.)
E. BASIC HEAT PUMP OPERATION
D. ELECTRICAL CONNECTIONS
1. ON/OFF TOGGLE SWITCH
In the OFF (O) position, the heater will be prevented from operating; however, there
is power to the unit. With the switch in the ON (I) position, the unit will run anytime
the water temperature drops below the thermostat setting and the pool or spa pump is
circulating.
NOTE: If the thermostat is turned all the way down and the ON/OFF switch is in the ON
position, the heater will run anytime water temperatures drop below 60° F. You must
position the toggle switch in the middle (OFF) position to keep the unit from operat-
ing when water temperatures fall below 60° and heating is not desired.
2. STANDBY LIGHT ON:
This indicates that there is power to the unit. The heat pump will turn on if the the
toggle on/off switch is on, the thermostat calls for heat and there is proper water flow
to the heater.
3. STANDBY LIGHT OFF:
This indicates power is not getting to the unit. Check any disconnect switches or
circuit breakers.
E. CONTROL PANEL INFORMATION
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AT500
CONTROL
PANEL
6.

Consult the diagrams on page 6 for the control panel on your heat pump.
1. Turn both the thermostat knobs counterclockwise to their lowest settings. Using the
thermostat selector switch, select either the pool or spa thermostat.
2. Next, position the ON/OFF switch to the ON position.
3. Make sure that your pool or spa pump is running for a few minutes to clear any air
that might be in the lines. The heat pump will not start without water flowing through
it. The power light should be on.
4. Turn the selected pool or spa thermostat dial clockwise to its highest setting. As soon
as the thermostat setting is above the temperature of the water, the heat pump will
begin to run.
NOTE: If you do not have a spa, this switch gives you a backup thermostat. This sec-
ondary thermostat can be used as a fall back setting for short periods when you
don’t want to maintain full temperature. For example, if you like to swim at 82° on
weekends, you may opt to keep the pool temperature at 78° during the week. This
will significantly reduce your heating bills. On Friday, simply flip the switch to the
higher setting and your pool should be ready for you on Saturday. (You may have to
increase the filter run time on Friday).
If you turn the thermostat back and below the water temperature, the heat pump will
shut off. It will not start for approximately five (5) minutes, no matter how far you
turn the thermostat up. The time delay prevents damage to the compressor if the heat
pump was to repeatedly cycle on and off.
5. Allow your pool or spa filter pump to run continuously until the desired temperature
is reached. (This may take several days.) This may require resetting (or removing
completely) the trippers on the time clock to allow it to run continuously.
6. To set the thermostat, allow the heat pump to heat the water until it reaches the tem-
perature you desire. Then, turn the thermostat slowly counterclockwise until the unit
shuts off. The heater will maintain your pool or spa at this temperature automati-
cally.
7. CONDENSATE DRAINAGE
Condensation is a very normal function of your heat pump. When warm,
moisture laden air passes over the cooler evaporator coil (finned air coil), the
temperature is lowered and moisture is condensed from the air. A typical heat
pump can produce 6 to 8 gallons of condensate per hour.
If you are not sure whether the water draining from your heat pump is condensation
or a water leak, you can easily test for the presence of a sanitizer with your pool test
kit. If you detect chlorine or bromine in the water draining from your heat pump, it is
not condensation. In this case, call Aquatherm for service. If no chlorine or bromine
is detected, the water draining from your heat pump is condensate. If a water sample
cannot be obtained from the heat pump, there is another quick test you can perform.
Simply turn the heat pump off, still allowing the pool or spa pump to circulate water
through the heater. With the heater off and the pump continuing to circulate, allow the
F. HOW TO OPERATE YOUR HEAT PUMP
7.

heater to remain off for a few hours. If the water draining from the heater has slowed
considerably, this would indicate that the water present was from normal condensa-
tion. If the water has not slowed, this would indicate a leak.
It is important to keep the drain holes located around the bottom of the unit clean and
free of debris that might accumulate. Keep plants from growing near or next to your
heater. Shrubs, especially, block air from entering the machine and reduce the effi-
ciency of the heater. Eventually, this can cause damage to the unit if left uncorrected,
Keep all shrubs at least 1 foot away from the outer coil of the heater.
8. SURROUNDINGS
While the heat pumps are made for an outdoor environment, they are not designed
to have sprinkler water constantly spraying them. Water used to irrigate can contain
iron and other minerals that can coat the heat collectors, causing poor heat transfer or
eventually damaging the air coils and other internal components. Premature rusting
of components is a frequent symptom of the sprinkler system striking the unit and is
not covered by the warranty.
9. POOL BLANKETS
A pool blanket will significantly reduce your heating bills. You should check with
the installing dealer to see if your heat pump was sized to be used in conjunction with
a solar blanket or without one. Blanketed pools will typically lose only 2-4° of heat
per night versus 8 - 10° overnight in unblanketed pools. Reductions of 40-60% on
heating bills can be achieved by using solar blankets.
10. SEASONAL SHUT DOWNS
During the swim season, even if the pool or spa is not in use, allow water to flow
through the unit. This eliminates the possibility of chlorine gas from your chlorinator
accumulating inside the heat exchanger.
See page 4 - C3
11. WATER TREATMENT
AT500 Aquatherm Heat Pump is equipped with an internal bypass that allows only
the proper amount of water to flow through the heat exchanger. A Hartford Loop
MUST be installed between any chlorinator and the heat pump (see drawing on page
4).
Chlorinators must be installed downstream of the heat pump. The proper sequence
of installation is: pool pump - filter - heat pump - chlorinator (or other chemical
feeder device). Locating a chlorinator in any other manner may compromise the
warranty of your heat pump. Adding chemicals such as sanitizers or pH controllers
through the skimmer of your pool should be avoided. Not only can they damage the
heat pump, but other pool or spa equipment such as pumps and filters as well.
Suction type sanitizers that utilize the vacuum created in the pool pump strainer to
pull chemicals into the water are safe to use when installed in accordance with the
manufacturer’s instructions. The chemicals injected into the pool water before the
pool pump are well dispersed by the time they go through the heat pump and will not
cause harm when operated as per the manufacturer’s instructions.
8.

Skimmer feeding of sanitizers and pH adjusting chemicals
should always be avoided, and will your warranty.
The acceptable water chemical levels are outlined on page 4 - C2. If you have ques-
tions concerning how to check for these levels, consult your installer for instructions.
Pool and spa water should be checked at least once a week andmeet NSPI/ANSI
Standard 5 Appendix A specifications. A few key levels are outlined below. For
additional information, contact the National Pool and Spa Institute (NSPI) at 703-
838-0083.
CHEMICAL LEVELS (PPM)
MINIMUM IDEAL MAXIMUM
Free Chlorine 1.0 1.0-3.0 3.0
Bromine 2.0 2.0-4.0 4.0
pH 7.2 7.4-7.6 7.8
Total Alkalinity 60 80-100 100-180*
*Recommended maximum levels will vary with the tye of pool surface.
Check with builder, installer or manufacturer. Fiberglas pools, for
example, require slightly different chemical levels than those listed.
Failure to maintain your pool or spa water chemistry within the above specifications
will shorten the life of your heat pump and may void the warranty. Chemical damage
to the heat exchanger is detectable and preventable. The heat exhcanger has been
designed for many years of continual use providing its integrity has not been compro-
mised by improper water chemistry.
L. MAINTENANCE OF AREA
12. MAINTENANCE OF AREA
It is important to keep the surrounding area adjacent to your heat pump clear of items
such as shrubs and bushes, lawn furniture, chemicals, stc. These items can prevent
air from circulating properly and result in in inefficient operation or damge to com-
ponents inside the heat pump. Do not place ojects on top of the heat pump that will
block air from exiting the heater, Damage to the compressor and fan motor may oc-
cur. OF FILTER
13. BACKWASHING OF FILTER
It is important to keep your filter within the manufacturer’s operating specifications.
As a filter gets dirty, the flow to the heat pump is reduced. The higher the pressure on
the filter gauge, the lower the flow rate. If left long enough, the flow can be reduced
to such an extent that the heta pump will cycle on and off every five minutes. Before
calling your dealer or Aquatherm for service, backwash or clean the filter. Finally,
check for improper valve settings. A partially closed valve after the filter will cause
the same conditions to occur. If the problem persists, call for service.
Note: During pool refinishing or acid washing, the pool heater must be bypassed until
the process is completed and the pool chemistry is balanced once again.
9.

14. DEFROST CYCLE
When air temperatures are below 50° F, your pool may go into a defrost cycle. The
defrost cycle is initiated by a sensor on the evaporator (air coil). When the evapora-
tor temperatures fall to a point where they start to form ice on the fins, the heat pump
will shut down. The heat pump will remain in the defrost mode until the evaporator
coil temperature rises above 40° F. In the event the air temperature is below 40° F,
the heat pump will remain in the defrost mode until the temperature rises above 40°
F. The lenght of time the heat pump is in the defrost mode is dependent on the air
temperature. The warmer the air temperature, the shorter the defrost cycle; the colder
the air, the longer the defrost cycle. This is another reason why you should operate
your heat pump only during the warmest part of the day. Late night and early morn-
ing is usually the coolest time of the day and least efficient for heat pumps.
G. MAINTENANCE
All Aquatherm heat pumps are designed for outdoor use, but some maintenance is
required to maintain your warranty. In coastal areas where salt-laden air or salt water
spray can come in contact with the heat pump, or where blowing sand can accu-
mulate inside a heat pump, regularly scheduled planned maintenance by a certified
Aquatherm technician is required. If your heat pump is situated where falling leaves
can accumulate on the inside of the machine, annual maintenance is recommended.
It is recommended that annual planned maintenance be performed on your heat pump
by a certified Aquatherm Service Contractor. Call Aquatherm at 888-297-3826 to
schedule service.
H. TROUBLESHOOTING
2. IS MY HEAT PUMP HEATING?
After the heater has been running for a few minutes, you can do a simple test
to see if it is heating.
a. Feel the air exiting the top of the cabinet. It should be 8-12° cooler than the surround-
ing air.
b. Place your hand, or better yet, a thermometer in the pool water away from the pool
returns. Leave your hand or thermometer there for at least one minute, then move
your hand slowly towards one of the returns. You should be able to detect a slight rise
in temperature, or see a 2-4° rise on your thermometer.
c. When the heat pump has been running for approximately 15 minutes, you should be
able to see water starting to drain around the base of the unit. This is not water from
your pool or spa. This is condensation, which is produced naturally by removing
heat from the air. The cool air cannot hold as much moisture as the warm air and
condensate is produced. A heat pump can produce 6 - 8 gallons of water per hour,
depending on the outside humidity. The higher the humidity, the greater the amount
of condensate produced. Running the heat pump during periods of low humidity may
produce little or no condensate.
2. POOL AND SPA COMBINATION HEATING
Everything stated for pool heating applies to heating a spa; only the volume of water
10.

being heated is less. The AT500 Aquatherm heat pump comes equipped with two ther-
mostats. One thermostat is for the pool and the other one is for the spa. Select the
appropriate thermostat (pool or spa), whichever you are heating, using the Pool/Spa
selctor switch on your heater control panel. Set your valves in the appropriate posi-
tion.
Your sytem can be automated with the addition of an Automatic Thermostat Mod-
ule. This will save you from having to change the thermostat switch each time you
change from pool to spa and back again. You can also automate your pool and spa
isolation valves with a motorized valve module. For details, contact your installing
dealer.
3. SPA HEATING TIPS
When heating a spa, be sure to turn off the air blower. Air induced through spa jets
should also be eliminated, if possible. Air blowing into your spa while it is being
heated will very often neutralize or reduce the heat being put into the spa by the
heater, which means increased run time to heat your spa.
11.

H. TROUBLE SHOOTING
)STHETHERMOSTAT
TURNEDUPANDTHETOGGLE
SWITCHINTHEONPOSITION
#HECKTOBESURETHE
POWERLIGHTISON
)FTHEPOWERLIGHTIS
OFFCHECKFORATRIPPED
CIRCUITBREAKER2ESET
THECIRCUITBREAKERIF
NECESSARY
0LACETHETOGGLE
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POSITIONANDROTATE
BOTHTHERMOSTATSTO
THEMAXIMUMSETTING
)STHEUNIT
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CORRECTLY
)STHEUNIT
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CORRECTLY
#HECKTOSEEIFTHE
POOLPUMPIS
OPERATINGANDTHE
FLOWLIGHTISON-AKESURE
ALLISOLATIONVALVESARE
INTHECORRECTPOSITION
ANDTHEFILTERANDPUMP
BASKETARECLEAN
4HEHEATERIS
EQUIPPEDWITHA
FIVEMINUTEDELAY
7AITATLEASTFIVE
MINUTESTOALLOW
THETIMERTORESET
#ALL

FORSERVICE

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12.

H. TROUBLE SHOOTING
)STHEAIRBEINGDISCHARGED
OUTOFTHETOPOFTHEUNIT
DEGREESCOOLERTHAN
THEOUTSIDEAIR
4HEDEFROSTLIGHT
INDICATESAIR
TEMPERATURESARETOO
LOWTOSUPPORTTHE
HEATERSOPERATION
)STHE
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)STHE
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PERFORMING
PROPERLY
)STHEPOOL
PUMPTIMER
SETTOALLOW
EXTENDED
OPERATIONOF
THEHEATER
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HOURSOFOPERATIONTO
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INCOOLERCONDITIONS
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
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
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
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CORRECTLY
)FTHEHEATERHASNOT
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CONFIRMWHETHERTHE
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USEACHLORINETESTSTRIP
TODETERMINEIFTHEWATER
AROUNDTHEUNITCONTAINS
CHLORINE
$IDTHE
TESTRESULTS
INDICATE
THEPRESENCE
OFCHLORINE
INTHE
WATER
)FTHEHEATERISOPERATIONALIT
ISNORMALTOPRODUCEUPTO
GALLONSOFCONDENSATION
WATERPERHOUR
)FTHEWATERAROUNDTHE
HEATERSEEMSINEXCESSOFGALLONS
PERHOURUSEACHLORINETESTSTRIP
TODETERMINEWHETHERTHEWATER
ISFROMTHEPOOLORIS
NORMALCONDENSATION
!NALTERNATIVEMETHODOF
DETERMININGAPOOLWATERLEAK
INTHEHEATERISTOTURNTHE
MACHINEOFFFORAFEWHOURS
ANDSEEIFWATERCONTINUES
TODRAINFROMTHEUNIT
4HISWOULDINDICATETHE
WATERPRESENTAROUNDTHE
UNITISFROMNORMAL
CONDENSATION
#ALL

FORSERVICE

9%3
9%3
./
./
8"5&3-&",03$0/%&/4"5*0/
./4%4HEMETHODOFTESTINGABOVEISVALIDONLYFORPOOLSUSINGCHLORINEASTHESANITIZINGAGENT
&ORPOOLSUSINGASANITIZINGMETHODOTHERTHANCHLORINEREFERTOTHEFOLLOWINGPROCEDUREFOR
DETERMININGAPOOLWATERLEAK4URNTHEHEATEROFFWITHTHEPOOLPUMPSTILLCIRCULATING)FAFTER
AFEWHOURSTHEWATERDRAININGFROMTHEHEATERHASNOTSLOWEDDOWNTHISWOULDINDICATEAPOOL
WATERLEAK&ORSERVICECALL!QUATHERMAT
H. TROUBLE SHOOTING
14.

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