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OPERATIONAL & MAINTENANCE 

RECOMMENDATIONS

The information in this section is primarily for the Home Owner, but may also 

apply to servicing dealers or HVAC service centers. This section contains infor-

mation concerning planned maintenance, proper water flow, maintaining  proper 

clearances, as well as other vital information. 
Heat pumps should be inspected and maintained on an annual basis by a qualified 

swimming pool heat pump specialist.  Additionally, if the heat pump is located near 

the beach or coastal area, where salt spray and sand can become detrimental fac-

tors, more frequent service may be necessary. For service plan information, please 

see: 

Planned Maintenance Program

, later in this section, or contact Aquatherm 

Customer Support at: 239-482-0606
While annual maintenance is recommended to maintain your warranty, if you 

choose not to participate in the Planned Maintenance Program, rinsing the air coil 

regularly, and keeping the base of the unit clear of leaves and debris is a necessity.

Safety During Cleaning Operations

Do not use a pressure cleaner to wash heat pump . . . .  

Damage to evaporator fins, as well as other components, 

will result.

Failure to heed the following may 

result in damage to equipment.

CAUTION !

POSSIBLE ELECTRIC SHOCK HAZARD . . . Should you decide to wash 

the heat pump via water hose, disconnect all power to the pool equipment 

pad- including, but not limited to:  The heat pump, water pump, and any and 

all other electrical equipment.  Do NOT spray water directly into electrical 

components.  Do NOT restore electrical power until such time as all water 

has dried completely.

Failure to heed the following may 

result in permanent injury or death.

WARNING !

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    temperature and maintained per the  setting determined previously in:    

  “Set  the Heater Controls.”

  D.   In operation, whenever the actual (displayed) water temperature falls    

    below the desired set  point, after an initial time delay of 4-minutes, 

      the unit will begin heating.

THE HEATER CONTROLLER HAS AN ANTI-SHORT CYCLE 

TIME DELAY. IF OPERATION IS  INTERRUPTED, 

COMPRESSOR RESTART WILL BE DELAYED 

BY APPROXIMATELY 4 MINUTES.

4.   Program Filter Pump Run Time:

  Most pool/spa systems utilize a timer or multifunction controller to manage 

filter pump run times.   If your system incorporates such a device, follow the 

instructions below:

A.  It will be necessary to allow the filter pump to run continuously until the 

water has reached the desired temperature. If a timer controls the pool filter 

pump, it will be necessary to override the timer to allow 24-hr. operation.

B.  Once the desired temperature has been obtained (1-4 days), reset the pump 

control   device. Colder months require longer running times - generally 

eight to twelve hours/day.

C.  A heat pump can only operate when the filter pump is running. Therefore, 

it may be necessary –during cooler weather–to extend the water pump’s 

hours of daily operation.   The increased run time is necessary in order 

to keep up with increased, weather-related heat losses.

5.   Continuous Usage and Water Around Heater:
  CONDENSATION

After the heat pump has been operating for some time, water may be observed  

surrounding the heater. The moisture seen is condensation produced as a normal 

by-product of transferring heat from the air into the pool or spa water. 

Quantities 

of 6-8 gallons of water produced per hour are common

 if the air humidity 

is high. Conversely, a low humidity condition may result in no condensation 

being produced. (If water around unit seems excessive, to troubleshoot, see 

page 13, “Water Coming from the Heat Pump.”)

6.  To Stop the Heat Pump:

A.   Select: OFF via the MODE selector. This method of shut down 

preserves the controller settings.

B.   An interruption of water flow–such as when a pump timer is in 

control–will also halt heat  pump operation.

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Summary of Contents for AT115

Page 1: ...______ SERIAL_____________________________________________________ PURCHASE DATE_ ___________________________________________ INSTALLING CONTRACTOR____________________________________ POOL SPA HEAT PU...

Page 2: ......

Page 3: ...erved Except for a few minor owner capable maintenance items explained later in this manual repair and service of your heat pump must be performed only by licensed service personnel If you suspect you...

Page 4: ...e power supply panel and the disconnect switch located near the heat pump are both turned ON Is the code FLO displayed If so check to be sure that the circulating pump is operating and the filter is c...

Page 5: ...he desired water temperature for the POOL and or SPA 3 To Begin Heating A Verify MODE is set to HEAT HEA then depending on which body of water is to be heated use the POOL SPAselector key to select PO...

Page 6: ...operation whenever the actual displayed water temperature falls below the desired set point after an initial time delay of 4 minutes the unit will begin heating THE HEATER CONTROLLER HAS AN ANTI SHOR...

Page 7: ...heated is different Your heat pump comes equipped with two thermo stats One thermostat is for the pool and the other is for the spa Simply position the pool and spa isolation valves as directed by you...

Page 8: ...10 Operational Programming Codes FLO No Water Flow Detected This code appears whenever the circulating pump is off or when the heater is not receiving correct water flow OFF System is Off This code a...

Page 9: ...MENDED WATER CHEMISTRY STANDARDS 9 6 USER LOCK CODE OPTION ULC Heat pumps are shipped from the factory with the ULC option disabled En abling the ULC function permits the heat pump owner to restrict a...

Page 10: ...nu ously until the desired water temperature is attained This may take several hours to several days depending upon the size of the pool or spa and weather conditions If a time clock or similar device...

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