MULTI VRF-Ⅱ  INDOOR UNIT SERVICE MANUAL    EUROPEAN/LATIN AMETICA (R410A) 
53 
and hold the “FUNCTION” button for another five seconds to enter the wired controller parameter 
setting interface. The temperature area displays “P00”. 
(2)  Select a parameter code by pressing “ ” or “ ”. Press the “MODE” button to switch to parameter 
value settings. The parameter value blinks. Adjust the parameter value by pressing “ ” or “ ” and 
then press the “ENTER/CANCEL” button to complete settings. 
(3)  Press the “ENTER/CANCEL” button to return to the upper-level menu till quitting parameter settings. 
(4)  The user parameter setting list is as follows: 
Table 2.2 User Parameter Setting List 
00: does not change the 
master/slave status of 
the current IDU 
01: sets the current IDU 
to master IDU 
After the IDU connected   
with the current wired controller is 
successfully set to master IDU, "MASTER" 
on the wired controller is on. 
Infrared 
connection 
settings of 
wired controller 
This setting can only be enabled through 
the master wired controller. 
When the infrared remote receiving 
function of the wired controller is disabled, 
neither the master nor slave wired 
controller can receive remote signals. The 
wired controllers can only be operated by 
pressing. 
Wired 
controller 
address 
settings 
01: master wired 
controller 
02: slave wired controller 
When two wired controllers simultaneously 
control one or more IDUs, the two wired 
controllers should use different addresses. 
The slave wired controller (address: 02) 
does not have the unit parameter setting 
function except its own address settings. 
Group-
controlled IDU 
quantity 
settings 
01-16: number of indoor 
units 
This value is set based on the number of 
connected IDUs. 
If the current value is inconsistent with the 
actual number of group-controlled IDUs, an 
“L9” fault may occur. 
Static pressure 
settings for 
indoor fan 
Type 2: 
01.02.03.04.05.06.07.08
.09 
After identifying the IDU type, the wired 
controller only displays the available 
static pressure levels. 
1) The static pressure levels fall into five 
levels and nine levels for VRF IDUs. 
The wired controller only displays the 
static pressure levels matched with the 
identified IDU type. 
2) When the HBS network consists of IDUs 
with both five and nine static pressure 
levels, the wired controller displays nine 
adjustable static pressure levels 
according to the maximum control 
principle. If the static pressure levels 
received by the IDU from the wired 
controller, remote controller, or remote 
monitoring system exceed the setting 
range, the limit value prevails. 
3)During power-on and synchronization, 
the setting value of static pressure 
levels is determined by settings of the 
IDU. 
High-ceiling 
installation 
00: standard-ceiling 
installation height 
01: high-ceiling 
installation height