Gree Ultra Heat GMV-VQ72W/A-F, Service Manual

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Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial COMMISSIONING OPERATION
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3.3.2 Commissioning operations mode
The Ultra Heat GMV provides two commissioning methods. One is direct operation on main board of
outdoor units while the other is PC operation via special software. In PC software debugging,
indoor/outdoor parameters can be displayed and historical data can be recorded and inquired.
(Operation details can be found in relevant instruction manuals)
3.3.2.1 Commissioning through Operation on Main Board of ODU
In this debugging mode, following debugging functions are included on the main board:
Step 1: front panel of the outdoor units must be fully closed. Open the debugging window of each
basic module;
Step 2: disconnect power for outdoor units. According to design requirements of external static
pressure, set up corresponding static pressure mode for the units. Setting methods can be seen in
Outdoor Fan Static Pressure Setup S2 of Technical service manual; Silent mode setting method can
also be seen in silent mode setting S1 of Technical service manual;
Step 3: Disconnect power for outdoor units and set one module as a master unit. Setting methods
can be seen in Master Unit Setup S7 of Technical service manual (Set master unit S7 as
―00‖; Set slave
unit S7 as
―10‖).
Step 4: Connect power for all indoor units. Make sure all IDUs are power on. Then all outdoor
modules
will display ―A0‖.
Step 5:
Find the module with ―00‖ of S7 which is the master module. Hold SW4 button on the master
module for at least 6s to enable debugging. The main board will show:
Debugging code Progress code Status code
LED1 LED2 LED3
Code Display status code Display status Code Display status
A0 Blink
Press SW4 confirmation button on the master unit to confirm it. Unit will start debugging.
Step 6: Wait. Unit will then start progress 01.
If no error is detected, system will display as below and then start next progress.
——
Debugging code Progress code Status code
progress
LED1 LED2 LED3
Code Display status code Display status Code Display status
01_Set up master unit db Light 01 Light oC Light
If unit have some errors, progress 01 will show the following errors:
——
Debugging Code Progress Code Status Code
Meaning
Progress
LED1 LED2 LED3
Code
Display
status
Code
Display
status
Code
Display
status
01_Set up
master unit
CC Light
System doesn‘t have master unit.
Reset master unit.
CF Light
More than 2 master units are set.
Reset master unit.
CJ Light
Address DIP switch code of system is
shocking.