Engineering Parameter Query - Gree GMV-ND07PLS/A-T(U) Service Manual

temperature in
automatic
mode
Heating setting
temperature in
P38
automatic
mode
Preferential
P43 operation
settings
Accumulated
time clearing
P46
for air filter
cleaning
Opening angle
P49 of indoor unit
air-return plate*
Air outlet
temperature
setting for
P50
Fresh Air
Indoor Unit in
cooling*
Air outlet
temperature
setting for
P51
Fresh Air
Indoor Unit in
heating*
Union setting of
P54 Fresh Air
Indoor Unit*
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:
Multi Variable Air Conditioners Indoor Unit for North America
16° C -29° C
00: common operation
01: preferential
operation
00: not cleared
01: cleared
01：angle 1(25° /77° F)
02：angle 2(30° /86° F)
03：angle 3(35° /95° F)
16° C~30° C
(61° F~86° F)
16° C~30° C
(61° F~86° F)
00: without union control
01: with union control
49
setting temperature ≥ 1.
NOTICE! The two settings are still valid in
remote shielding status.
20
When power supply is insufficient, users
are allowed to power on/off the IDU set with
preferential operation and other IDUs are
00
forcibly powered off. A fault code is
displayed on the IDU that is forcibly
powered off.
00
01 Only applicable to units with air-return plate
18° C
Only applicable to Fresh Air Indoor Unit
(64° F)
22° C
Only applicable to Fresh Air Indoor Unit
(71° F)
After union function is set, Fresh Air Indoor
Unit will be turned on/off following the
on/off status of common indoor unit.
00 Besides, Fresh Air Indoor Unit can also be
turned on/off manually.
NOTICE! only applicable to Fresh Air
Indoor Unit