Assessments - 2, GPA: 3.5
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70, latest edition, and all applicable state and local codes. NOTE: Refer to the National Electrical Code, Article 680, for general requirements for swimming pools and equipment, and to Article 440 for special considerations necessary for circuits supplying hermetic refrigeration motor/compressors. This unit is pre-wired to work with external control systems, heat-on-demand options and other external time clock overrides. Refer to the external control system’s instructions for installation information. 2 III. Water Connections CAUTION The heat pump inlet and outlet connections are NOT interchangeable. They must be connected as instructed below. 1. Connect the heat pump in the return water line between the filter and the pool/spa. See page 10, Plumbing Diagrams. 2. Connect the filter outlet to the fitting marked WATER IN at the bottom front of the unit. 3. Connect the fitting marked WATER OUT to the return piping to the pool/spa. Unit inlet/outlet connection fittings are 2-inch PVC unions. Water connections from the heat pump to the main return line can be PVC pipe or flexible pipe approved for the purpose and, in either case, should be at least equal in size to the main pool/spa circulation piping. 4. In cold weather (freeze zone) areas, shutoff valves (ball or gate type) must be installed at the heat pump inlet and outlet to facilitate service and cold weather drain-down. 5. Operate the pump and check the system for leaks. WARNING Install a check valve and/or a Hartford loop AFTER the heat pump and BEFORE any chlorinating devices. Install any automatic chemical feeders AFTER the heat pump. Improper installation of erosion-type automatic chemical feeders can result in serious damage to, or premature failure of, the heat pump and will void the heat pump warranty. IV. Controls and Indicator Lamps Your heat pump incorporates safety controls and indicators to ensure its safe, reliable operation. Water Pressure Switch: Prevents operation when the pump is OFF. The unit requires 5 psi minimum pressure. Water Temperature Control: Pool/spa water temperature is controlled by the heat pump thermostat on the unit control panel, which contains a switch and 2 thermostats, one for setting a heat spa temperature and the other for a swimming pool temperature. The switch can operate an optional external control system, or can switch between thermostats for pool or spa. NOTE: The heat pump will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control system attached. Defrost Switch: Prevents heat pump operation if ambient air temperature falls below a predetermined safe minimum (approximately 42° F). Delay Timer: Prevents compressor from short cycling, which could damage or destroy the hermetic motor/compressor. Upon water temperature control satisfaction, or other control circuit 3 interruption, this solid state device will prevent compressor restart for approximately 5 minutes. Upon power failure or interruption, a 6 to 8 minute delay will also be initiated. Refrigerant Low Pressure Control: Stops the compressor if refrigerant suction (low side) pressure falls too low as a result of a malfunction, loss of charge or extreme cold conditions. Indicator Lamps: There are 6 indicator lamps located on the unit control panel: Control panel Indicator lamps When this lamp is lit, unit requires service. When any combination of these 5 lamps is lit, operation is normal. • Power (amber lamp): When lit, indicates power is applied to the unit. NOTE: The heat pump will not run when the Remote position is selected on the Pool/Spa selector switch and there is no remote control system attached. • Water Flow (green lamp): When lit, indicates normal water flow. • Heat Demand (green lamp): When lit, indicates the actual water temperature is below the target water temperature. • 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 continue to run but the compressor will stay OFF (not heating) until weather conditions improve. • Low Pressure (red lamp): When lit, indicates failure in the refrigeration circuit. When this lamp is ON, service is required. Call the number shown on the cover of this manual. 4 V. 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-Pool switch is in the Remote (OFF) position; see the figure. 3. Turn the control switch to either Pool or Spa to turn the system ON and raise the thermostat setting above the current water temperature. At this time the 2 green lamps should illuminate. The fan and compressor should start up and run simultaneously. NOTE: The heat pump will not run whe...
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