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By default, the variable-speed pump control is disabled.
However, when the variable-speed pump option is
enabled and set to operate in the "4-speed control" mode,
the default control mode is set to command the pump
with the Raymote app via Wi-Fi. In this mode, the heater
must be connected to a local Wi-Fi network to manually
command the pump or use online automation routines.
Furthermore, the variable-speed pump can be controlled
by the built-in local schedule with up to four periods of
operation per day, or by the built-in automatic mode
"Heater demand," which commands the pump whenever
the heater requires heat or cool. For more information
on the single-speed pump control modes, please refer to
section 13 of the Installer menu, located on page 21.
1. Follow the general instructions for wiring external
devices and run a 5-conductor cable from the pump
controller or digital interface, to the control box of
the heater. The specific pump controller to be used
is determined by the manufacturer and model of the
pump. Refer to the installer manual of your variable-
speed pump for more details.
Figure 138. Cable Routing to the VS Pump Controller
Figure 139. Cable Routing to a VS Pump Digital Interface
APPROVED
Variable
Speed
Pump Digital
to RS-485
interface
Proprietary
RS-485 Pump
harness
5-conductor
cable
UNCONTROLLED DOCUMENT IF PRINTED
2. Inside the heater's control box, use the harness
adapter labeled "Pump speed selector" that comes
with the accessories bag to connect the 5-conductor
cable to the control board terminal labeled "VAR
PUMP" [P8]. The adapter can supply 4 digital outputs
at 30VDC and a ground signal. Make sure to identify
the wires in both ends of the 5-conductor cable. Refer
to Figure 140 for guidance.
3. Connect the other end of the 5-conductor cable to
the digital input terminals on the variable-speed
pump controller or the digital to RS-485 pump
control interface. Figure 141 through Figure 145,
provide examples of connections for certain variable-
speed pump brands and models. Please refer to
the installation and configuration manual of your
variable-speed pump for more details on connecting
and configuring the digital input speed selector.
4. Once the wiring is complete, make sure to
configure the variable-speed pump controller or
interface adapter according to the manufacturer's
specifications. Follow the instructions provided by
the pump manufacturer to ensure compatibility and
correct operation of the pump.
Identify the wires of the 5
conductor cable in both
end of the cable. The
colors may differ.
To VS pump
controller
Figure 140. 5-Conductor Cable Wiring
SINGLE
VARIABLE
SPEED
SPEED PUMP
PUMP
P20
P19
P8
P5
VALVE2
VALVE1
OUTPUT
OUTPUT
Speed 1
Speed 2
Speed 3
Speed 4
Ground
77
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