GREE Multi Variable Air Conditioners Indoor Unit
67
Union setting of
Fresh Air Indoor
Unit*
00: without union control
01: with union control
After union function is set, Fresh Air Indoor
Unit will be turned on/off following the on/off
status of common indoor unit. Besides,
Fresh Air Indoor Unit can also be turned
on/off manually.
NOTICE! only applicable to Fresh Air Indoor
Unit
Signal type of
access control
01:5-12V DC(including
12V)signal of access
control
02: 12V-24V DC
(excluding 12V)signal of
access control
03: 110V AC signal of
access control
04: 220V AC signal of
access control
Only applicable to wired controller XK79 with
access control
NOTICE! In parameter setting status, "FAN", “TIMER”, "SLEEP", and "SWING" are invalid. By pressing
the “ON/OFF” button, users can return to the main interface but not power on/off the unit.
In parameter setting status, signals of the remote controller are invalid.
4.1.6 Engineering Parameter Query
Engineering parameters can be queried in power-on or power-off status.
Press and hold the “FUNCTION” button for five seconds to enter the engineering parameter query
interface. The temperature area displays “C00” and “View” is on.
(1) Within five seconds after “C00” is displayed, continuously press the “MODE” button for three
times in an interval less than one second to enter engineering parameter query.
(2) Select a parameter code by pressing “ ” or “ ”.
(3) Press the “ENTER/CANCEL” button to return to the upper-level menu till quitting parameter
query.
In the engineering parameter query interface, users can also query user parameters listed in Table
4.3.
The engineering parameter query list is as follows:
Table 4.3 Engineering Parameter Query List
Parameter
setting
ingress
(default)
Display mode:
Timer area: displays the project number of the current IDU.
NOTICE! If the current HBS network consists of multiple IDUs, only the
IDU that has the minimum project number is displayed.
Operation method:
In “C02” status, press the “MODE” button to enter the preferential
operation query interface. Press " " or " " to switch the project
number of IDU.
Display mode:
Temperature area: displays the project number of the current IDU.
Timer area: displays the current IDU capacity/IDU capacity after
adjustment.