Aquacal HeatWave SuperQuiet SQ120R, Installation Manual

Page: 31 / 145

Page - 27
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.
l
The installer must be familiar with service industry techniques.
NOTICE
Failure to heed the following may result in damage to equipment.
l
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.
l
The wire size connecting the external controller to the heat pump must be 22-
gauge, 2-conductor, low-voltage wire.
l
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.
c.1 Connecting Smart Bus Controllers
External Controller
Communication Port
Wire Connections
1. Deactivate power to heat pump and external controller.
2. Remove electrical access panels on the heat pump and external controller.
3. Route 22-gauge, 2-conductor, low-voltage wires from the external controller
communication port (com port) to the low voltage side of the heat pump's electrical
enclosure. Do not use the power or ground wire.
Figure 1
4. Connect control wires to the heat pump's "Port B" of the
microprocessor as indicated. See Figure 1 and Figure 2.
l
It is OK to double up wires at the external controller
connection if necessary.
l
If, for example, the external controller is using the data
port for an indoor controller, add wires to the existing
configuration.
Connectors can be removed from
terminals for ease in connecting wires. See Figure 3
1
-
Ins
ta
lla
tion