Heat Recovery DC Inverter Multi VRF Unit
43
Parameter
code
Parameter
name
Parameter range
Default
value
Remarks
P13
Wired
controller
address
setting
01
：
Primary
wired controller
02
：
Secondary
wired controller
01
When two wired controllers control one (or more) indoor
units, the addresses of the controllers must be different.
Secondary wired controller (address is 02) does not support
unit’s parameter setting except setting of its own address.
4.7.3 Connection between duct type indoor unit and receiver board
If duct type indoor unit needs to be connected with remote-control receiver board, please
connect via Dsp1 and Dsp2 on the main board of indoor unit:
Type of indoor unit
Connection type
Corresponding main board interface of
indoor unit
Duct type indoor unit
Inter-board connection (17 cores)
Dsp1 (interconnecting with the 8-core
interface)
Dsp2 (interconnecting with the 9-core
interface)
Figure 46
Note:
①
Wired controller and remote-control receiver board can be used at the same time.
②
If remote-control receiver board is selected, please select a remote controller.
4.7.4 Communication connection for units with central control
Below is the connection of terminal G1 and G2 on terminal block XT2 of master unit of each multi
VRF system.
When installing long-distance monitor or centralized controller, indoor unit project code offset
operation is required. For detailed operation methods, please refer to
Installation, Commissioning and
Maintenance Manual for Heat Recovery Units
.