GREE                                                                                          GMV5 INDOOR UNIT SERVICE MANUAL   
 
64 
 
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 
00: disabled 
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 1: 03.04.05.06.07 
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 
00: common timing 
01: time-point timing 
Repeating 
validity for 
time-point 
timing 
00: single timing 
01: repeated everyday 
This setting is valid only when the timer 
function is set to time-point timing.