Gree GMV-N07G/A3A-D(U), Service Manual

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Multi Variable Air Conditioners Indoor Unit for North America
65
04 Module 4
C11 Indoor unit quantity query in one-to-many control mode
C12 Temperature query for outdoor environment temperature sensor
C13 CAN2 bus line ID query
C14 Inlet-tube temperature query of IDU
C15 Outlet temperature query of IDU
C16 Opening degrees query of electronic expansion valve of IDU
n2 Capacity configuration ratio upper-limit query of outdoor and IDUs
n4 Highest capacity output limitation query
n6 Historical fault query ingress of ODU
01 Fault 1
02 Fault 2
03 Fault 3
04 Fault 4
05 Fault 5
A6 Unit cooling/heating function
A7 Outdoor silent mode
4.4.3 Parameter Settings
For parameter settings, users can set user parameters and engineering parameters of the unit. The
parameter setting method is as follows:
(1) After entering parameter query, switch the query code to "C00". Press and hold "
CLOCK
" for five
seconds to enter the parameter setting status. The setting text is displayed and "P00" blinks in the
temperature area.
(2) Press " " to switch the setting code and select a unit parameter to be set (see Table 2.6 for
parameters that can be set).
(3) Press "
TEMP
" to enter parameter settings. The current parameter value blinks in the timer
area. Press " " to change the parameter value.
(4) Press "
TEMP
" to confirm query and return to step 2.
After entering engineering commissioning, the system automatically quits the engineering
commissioning status if no valid operations are performed within 20 seconds. To directly quit the
engineering commissioning status, press "
CLOCK
".
Table 2.6 Setting Parameters
Setting
Code
Setting Content Setting Value
P00 Invalid
P10 Master IDU settings
00: not changing the current settings
01: setting the corresponding IDU to master IDU
001-255: setting the IDU corresponding to *** to master IDU
P15
Power-down memory mode
settings
00: standby after power-down recovery
01: restoring the original status after power-down recovery
P17 Historical fault clearing
00: not cleared
01: cleared
P20
Indoor environment temperature
value
01: temperature sensor of air return vent
02: temperature sensor of wired controller
03: temperature sensor of air return vent for cooling, dehumidifying,
and air supply; temperature sensor of wired controller for heating
04:
temperature sensor of wired controller for cooling,
dehumidifying, and air supply; temperature sensor of air return vent
for heating and automatic mode