Connecting Two-Wire Controllers (With Internal Thermostat) - Aquacal WATER SOURCE WS03 Installation Manual

10. If after 45 seconds, the heat pump displays a "
A. Confirm dip switches - If external controller uses dip switches, confirm switches are in the correct
position. Otherwise, proceed to confirm wiring.
a. Deactivate power to the external controller.
b. Remove access panel on external controller.
c. Check the external controller manual for proper dip switch positioning and confirm dip switches.
d. Reinstall electrical access panel.
e. Reactivate power to the controller.
f. If the fault persists, proceed to confirm wiring.
B. Confirm wiring - Confirm wires are oriented properly on the heat pump's "Port B" of the
microprocessor.
a. Deactivate power to heat pump and external controller.
b. Remove the access panel on the heat pump.
c. Reverse wires on "Port B".
d. Reinstall electrical access panel.
7. Reactivate power to the controller.
8. Reactivate power to the heat pump.
C. If fault continues to occur, check with the manufacturer of the external controller for additional advice on
using a heat pump with the controller.
11. After establishing a connection from the external controller to the heat pump, further programming will be
required at the external controller.
See external controller manuals or contact installer or manufacturer of that product.
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c.2 Connecting Two-wire Controllers (with internal thermostat)
PLEASE NOTE
2-Wire controllers are not designed to control chiller operation.
For full functionality, the Heat and Cool, and Cool Only heat pumps must use an external
controller that has a SMART bus connection. Check with the external controller
manufacturer for more information.
DANGER
Deactivate power while routing wiring to control board.
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Follow all National Electric Codes (NEC) and/or State and Local guidelines.
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SMART COMM FAULT
Failure to heed the following will result in injury or death.
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