Aquacal GBB, Installation Manual

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1.6.b Connecting External Controllers to Heat Pump
To support a direct connection to an external controller, AquaCal ® heat pumps are equipped with optional
removable terminal blocks on the microprocessor. The microprocessor is located on the low-voltage side of
the electrical enclosure.
DANGER
Failure to heed the following will result in injury or death.
l
Deactivate power while routing wiring to control board.
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Follow all National Electric Codes (NEC) and/or State and Local guidelines.
WARNING
Failure to heed the following may result in injury or death.
l
This section is only for qualified installers who are familiar with the swimming pool and spa safety standards.
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The installer must be familiar with service industry techniques.
NOTICE
Failure to heed the following may result in damage to equipment.
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Do not use an electric heater connection on external controllers for
heat pump wiring.
This can cause damage to external controllers, heat
pumps, and pad equipment. This damage is NOT covered by warranty.
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The wire size connecting the external controller to the heat pump must be 22-
gauge, 2-conductor, low-voltage wire.
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Use the two middle data lines on the external controller's standard communication port (RS-485). Do not use the
outside power or ground connection on the port.
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