Water-cooled Heat Recovery DC Inverter VRF
29
Connect to
mode exchanger
Fig.4.7.5 One wired controller controls multiple IDUs
Connect to
mode exchanger
Fig.4.7.6 Two wired controllers control multiple IDUs
When two wired controllers control multiple IDUs, the wired controller can be connected to any
one IDU which should be the same series. Meanwhile, only one of the wired controllers should be set
as slave controller. At most 16 IDUs can be controlled by wired controllers and the connected IDUs
shall be within a same IDU network.
No matter unit is turned on or off, slave controller can be set.
How to set a slave controller: hold “function” button on the designated controller for 5s, and
temperature zone displays C00. Continue holding “function” button for 5s and setting screen of
controller parameter will come out. Default temperature zone displays P00.
Press
button or
button to select parameter code to be P13. Press “mode” button to
switch to parameter setting. Then the parameter blinks. Press
button or
button to select
code to be 02. And then press “confirm/cancel” to finish setting.
Press “confirm/cancel” to return to the previous display, press again to quit from the parameter
setting and go back to default display.
User’s parameter settings is shown as below:
Parameter
code
Parameter
name
Parameter scope
Default
value
Remark
P13
Set up address
for wired
controller
01: master wired
controller
02: slave wired
controller
01
When 2 wired controllers control one or more
IDUs, different addresses should be set.
Slave wired controller (02) can’t set units’
parameter but only its own address.
4.7.3 Communication connection between duct type IDU and light board receiver
When the duct type IDU needs to be connected to light board remote receiver, it can be
connected by Dsp1 and Dsp2 on the IDU main board.
IDU type
Connection wire
Main board interface of corresponding IDU
Duct type IDU
Between boards (17-core)
Dsp1 (direct to 8-core interface)
Dsp2 (direct to 9-core interface)
Summary of Contents for GMV-WQ120WM/A-F
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