GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
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follows:
Step 2: Press "SW7" to send the project number offset command. The master module is displayed as
follows:
After 10 seconds, the system quits this mode and restores the normal operation mode.
Note: This function only needs to be set on the master system, which is the system with the centralized
control address SA2 DIP switch being "00000". For details, see the "Centralized Control Address DIP
Switch (SA2_Addr-CC)" section.
2. Function Query Operations
Step 1: Open the commissioning window of the master unit panel.
Step 2: Power on the entire unit.
Step 3: Press "SW4" on the master unit to enter the query status.
Step 4: Select a function to be queried by pressing "SW1 (UP)" or "SW2 (DOWN)" on the master unit. By
default, the A7 outdoor silent mode is displayed for query.
For example, select the A6 unit cooling/heating function. The display is as follows:
Step 5: If the n8 IDU address query is selected, the display is as follows. Enter the to-be-confirmed
status of IDU project number query.
Press "SW7" and select the IDU project number query on the master unit. The master unit is displayed
as follows. Other modules are displayed in normal status.
Regardless of the current display status of wired controllers or display panels of all IDUs, the current
display status is all switched to the IDU project number. However, it does not influence the settings and
operation status of outdoor and IDUs.
On the master unit, press "SW6" to return to the upper level. The IDU retains the project number display
status.
On the master unit, press and hold "SW6" to quit the address display status for all IDUs and return to the
upper level.
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