Aquacal TropiCool TC500 Installation Manual page 35

Chiller Is Running, Not Cooling (Reversing Models)
1. If the chiller is using an external controller, confirm the chiller is programmed properly to allow for cooling. See
"Operating Chiller (With an External Controller)" on page 1.
2. Confirm the chiller mode is set to COO operating mode.
3. Confirm the thermostat is set below the current water temperature.
4. Confirm valves are correctly positioned to cool the correct body of water (either the pool or the spa). If cooling a
spa that overflows into a pool, confirm the spa is isolated when being cooled (not flowing into the pool).
5. If an error code is displayed, determine and correct the condition causing the code. See "Fault Codes" on page
28.
6. Confirm chiller is transferring heat out of the water.
Measure the temperature of air discharge coming out of chiller's fan. If the air is between 8° to 10° warmer
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than the outside ambient air, the chiller is moving heat out of the water.
7. Confirm that filter pump has a sufficient run-time. The chiller will not run (or cool the water) without water flow.
Chiller equipment will generally be set to run 24 hours a day in commercial applications.
Ice Forming on the Chiller
When conditions are too cold for proper operation, the heat pump will enter a defrost mode. This
prevents ice from building up on the evaporator coil.
Cool Only Units
The heat pump may enter defrost mode if the water flow rate falls below the acceptable range.
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If the ambient air temperature will be falling below 32° F for more than 8 hours, winterize equipment.
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Water Coming From Chiller
The water may be normal condensation produced as a by-product of the chiller's refrigeration process. The
chiller can produce 8 to 10 gallons of condensation per day depending on the humidity of the ambient air.
Determine if the water is condensation or a possible leak.
1. Deactivate chiller, leaving the filter pump on. After several hours, determine if water is still coming from the
chiller.
2. If using chlorine or bromine as a pool / spa sanitizer, test the water around the chiller using a test strip. If the test
strip indicates that chlorine or bromine is present, a leak may exist.
PLEASE NOTE -
If desired, a kit is available to re-direct condensation water away from the chiller. See
"Condensation Drain Kit (# STK0202)" on page 26.
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