Sequence of Operation
The control system includes
a time delay to accurately check the pool water temperature, and
an anti-cycle timer to protect the compressor.
The time delay allows the control to get an accurate reading of the pool water temperature.
The water in the heater may be hotter or colder than the water in the pool depending on weather
conditions. To measure pool water temperature accurately, the time delay allows the pool pump to
run for 4 minutes before it measures temperature.
If there is a call for heat, the control will check to see if the compressor has been running during the
last 4 minutes. If the heater has been off for more than 4 minutes, the heater will start immediately.
If the heater has been either on during the last 4 minutes, or if power has been interrupted during the
last 4 minutes, the heater will not be allowed to start for an additional 4 minutes.
In most cases, the heater will not start until at least 8 minutes has passed without
resetting the on/off switch or the breakers.
The heater will continue to heat the pool until the temperature setpoint has been satisfied.
PLEASE NOTE:
1. It is important to remember that the pool heater will not run unless the pool pump is running.
2. Water vapor will condense on the outside of the unit and drain during normal operation.
3. There is up to an
8 minute start delay
built into the controls to prevent the compressor short
cycling, and to assure that the temperature control is reading the pool water temperature
accurately.
4. Raising the temperature control set point above the pool water temperature will not cause the
heat pump to start up until the delay has been satisfied.
5. The digital temperature control will read the current pool water temperature whenever there is
power to the heat pump. The temperature reading is not necessarily accurate unless the pool
pump is moving water through the Pool Heater.
