Hayward Aqua Solar® Aqua Solar - Page 8

Sensor Mounting and Wiring Most installations use a Hayward "PC" type sensor for both the "SOLAR" sensor and the "POOL" sensor. If optional recirculate freeze protection will be enabled, an additional "AUX" sensor is required (see description of this function on page 9). Otherwise, an "AUX" sensor can used to display the ambient air temperature or not used at all. Solar Sensor: Use a screw or silicone adhesive to attach the solar sensor near the solar collector array. The sensor does not have to be attached to the collectors. It is only important that the sensor be exposed to the same sunlight as the collectors. Additionally, the underside of the sensing element may be covered with silicon to minimize wind cooling. Pool Sensor: The pool sensor should be mounted in the filtration plumbing after the filter, but before any conventionally fueled heaters. If a PC sensor is used, drill a 3/8" (10mm) hole in the PVC pipe. Remove burrs around the hole. Insert the PC sensor until the O-ring collar sits flush on the hole. Position the hose clamp over the sensor and gently tighten until the O-ring makes an adequate seal. DO NOT OVERTIGHTEN. Optional Aux Sensor: This sensor should be mounted in a location that will accurately reflect the outdoor ambient air temperature (not in direct sunlight, away from heat or cooling sources, etc.). Other 10K ohm Hayward sensors may be substituted. Wire should be twisted pair 20AWG. Sensor wiring run outdoors must be rated for outdoor use and ensure that the wire connectors are protected from the weather. For long runs or runs near other electrical wiring use shielded cable (Belden 8428 for outdoor use). Ground the shields to the Aqua Solar's ground screw. High Voltage Relay Output Wiring A maximum of two high voltage relays (industry standard) may be added to the AQSOL-LV. The AQ-SOL-LV-TC model comes with one relay for the filter pump control already installed and one additional relay may be added. Order additional relays separately (Hayward p/n AQ-RELAY). The relays are industry standard and are double pole, single throw meaning that they can make/break both legs of a 240VAC circuit. Screw the relays into the mounting bracket and connect the coil to the proper connector for these desired functions: BOOST: This relay controls a booster pump for systems where the main filter pump does not have enough power to pump water through the collector array. The boost pump turns on 30 seconds after solar heating/cooling turns on. AQ-SOL-LV: For most systems, simply connect the Aqua Solar power to the LOAD side of the filter pump timer. If the Aqua Solar is connected to LINE power (typically when "Recirculate Freeze" or "Solar Override" features are also being used), then the input power to the boost pump relay should be connected to the LOAD side of the filter pump timer. See wiring diagram on page 6 (bottom). 5 AQ-SOL-LV Pool Sweep with Solar Override & Pool Sweep Interlock Pump 120/240 VAC Contactor (240 VAC Coil) Aqua Solar (AQ-SOL-LV) Pool Sweep Timer Booster Pump Pool Sweep Filter Pump 240 VAC Ground 240 VAC Filter Pump Timer Pool Filter Pump Be careful not to cross phases on filter pump wiring AQ-SOL-LV with Solar Override & Boost Pump Boost relay power connected to LOAD side of Filter Pump Timer to ensure that boost pump only runs when filter pump is runnning Boost Pump Aqua Solar (AQ-SOL-LV) Booster Pump Pool Sweep Filter Pump 240 VAC Ground 240 VAC Filter Pump Timer Be careful not to cross phases on filter pump wiring Pool Filter Pump 6