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Aqua Solar Digital Solar Control System
The Aqua Solar Digital Solar Control System is a dif ferential temperature control for
solar heating of pools, spas, and hot tubs. The Aqua Solar is available in 3 models;
AQ-SOL-L V, AQ-SOL-L V -TC and AQ-SOL-L V -SP. These models provide differential
temperature control with an adjustable calibrated water temperature high limit. Both
offer a built-in digital display for solar , water, and ambient temperature information as
well as programmable set point temperature. Automatic nocturnal cooling (for pools
that overheat in hot climates) and recirculate freeze protection functions can be enabled/disabled via internal jumpers. The AQ-SOL-L V -TC additionally provides a filter
pump time clock, programmable in 15-minute intervals with multiple ON/OFF times.
The AQ-SOL-LV-SP model provides a solar priority function—one of the optional
high voltage relays can be used to remove power from the conventional heater whenever solar heating is available. This maximizes the heat contribution from solar . Front
panel indicator LED’ s also provide immediate feedback of system state such as heating, cooling, and sensor fault.
Specifications
Power: 105-130VAC, .5A 50/60Hz. or
195-250VAC, .3A 50/60Hz
Valve Output: 24VAC, 20VA, .85A max.
Industry standard 3 pin connector
Relay Outputs: DPST isolated contacts; 3HP@240V, 1.5HP@120V , booster pump,
pool sweep interlock, or filter pump; 1 relay supplied with AQSOL-L V -TC, maximum of 2; order relays separately (part no. AQRELA Y); relays are industry standard
Sensors: 2 required for "SOLAR" and "POOL" temperatures; 3rd sensor
("AUX") is optional—for display and/or recirculate freeze
protection; (all sensors are thermistor type, 10K@25ºC/77ºF ,
additional freeze snap switches may be wired in series with the
"AUX" sensor when used for recirculate freeze protection)
Field Selectable options
C/F T emperature display in Celsius or Fahrenheit (factory default)
Cooling Enables or disables (factory default) operation to cool the pool
Recirc. Frz. Enables or disables (factory default) recirculate freeze protection
Solar Override Enables or disables (factory default) override of the filter pump
relay when solar heat is available.
Control Logic
Heat diff.: 4ºF on, 1.5ºF off
High Limit: 70-104ºF calibrated scale
Recirc. freeze: On when AUX sensor less than or equal to 34ºF
Off when AUX sensor greater than or equal to 36ºF
Cool diff. : -8ºF on, -3ºF off