Energy Tech Laboratories 5310, 8320, 6310 System Start-Up, Controls Digital Models

•Compressor Delay Active (amber lamp): Under normal operation, when lit, indicates compressor anti-short cycle timer is active. The fan will run but the compressor will be OFF for 6 to 8 minutes.

•Defrost Active (red lamp): When lit, indicates unit is in defrost mode. Defrost mode occurs when ice starts to form on the outside coil. The fan will con- tinue to run but the compressor will stay OFF (not heating) until weather conditions improve.

•Low Pressure (red lamp): When lit, indicates fail- ure in the refrigeration circuit. When this lamp is ON, service is required. Call for service assis- tance.

System Start-Up

1.Verify that the Power lamp is ON and that the pool/spa pump is running and circulating properly.

2.Verify that the control panel Spa-Remote-Poolswitch is in the Remote (OFF) position; see Fig. 4 below.

3.Turn the control switch to either Pool or Spa to turn the system ON and raise the thermostat set- ting above the current water temperature. At this time the 2 green lamps should illuminate. The fan and compressor should start up and run simulta- neously.

4.Allow the heat pump pool heater to operate for a few minutes to stabilize operating pressures and to allow various component temperatures to normal- ize.

5.Verify that the discharge air temperature is approx- imately 8°–10° cooler than the air entering the unit. If not, see the Troubleshooting Section.

Controls (Digital Models)

Your heat pump pool heater incorporates digital safety controls and indicators to ensure its safe, reliable operation (for models with analog controls, see page 10).

Water Pressure Switch: Prevents operation when the pump is OFF. The unit requires 5 psi minimum pres- sure.

Digital Water Temperature Control: The pool water temperature is controlled by the heat pump pool heater’s digital control system, which gives you the option of two settings: one for the desired spa temper- ature and the other for the desired pool temperature. Additionally, as mentioned earlier, the unit is compati- ble with most ‘2-wire’ and ‘3-wire’ control/automation systems.

Fig. 4: Selector Knobs — Analog Models

NOTE: The heat pump pool heater will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control sys- tem attached.

Fig. 5: Digital Water Temperature Control

Defrost Sensor: Prevents unit operation if ambient air temperature falls below a predetermined safe mini- mum (approximately 42°–48°F, based on humidity). The compressor will shut OFF but the fan will continue to run.

Delay Timer: Prevents compressor from short cycling, which could damage or destroy the hermetic motor/compressor. Upon water temperature control satisfaction, or other circuit interruptions, this solid state device will prevent compressor restart for approximately 5 minutes.

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