Aquacal Tropicool TC500 Operation Manual page 26

Chiller Not Running
1. Confirm equipment is receiving power. Is the chiller display illuminated?
If not, confirm the main breaker (located at the power supply panel) and the disconnect switch (located near
l
the chiller) are both turned on.
If the display still does not illuminate, it is recommended that the chiller installer or electrician confirms
l
chiller is receiving power.
2. Confirm correct mode is selected. See "Setting Operating Mode" on page 6.
3. Confirm thermostat is set correctly. See "Setting Thermostats" on page 6.
When cooling the water is desired, the thermostat should be set below the current water temperature.
l
4. If an error code is displayed, diagnose and correct the cause of the code. See "Fault Codes" on page 20.
Chiller's Tripping Breaker
1. Have an electrician confirm breakers are in good condition and properly sized for the chiller.
2. Multiple chillers installed at the same site may benefit from special automatic sequencing controllers to avoid
excessive power drops at start-up. See "Automatic Sequencing Controller" on page 18.
3. If a fault occurs immediately when the compressor starts, a qualified technician should evaluate the system.
Chiller Won't Shut Off
PLEASE NOTE
When chiller is set to " OFF ", the display will show either the water temperature or FLO .
1. Confirm the chiller has reached the desired temperature set on the thermostat. The chiller will continue to run
until the set temperature is reached.
2. If the chiller is incorrectly set to HEA or ACH mode, the unit will not deactivate.
See "Setting Operating Mode" on page 6.
l
3. If the chiller is using an external controller, it may not be set correctly.
See "Operating Chiller (With an External Controller)" on page 9.
l
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 9.
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
20.
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
l
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. See "Cooling
Recommendations" on page 18.
Page - 23