Water-cooled Heat Recovery DC Inverter VRF
41
(Operation details can be found in relevant instruction manuals).
Debugging through operation on main board of outdoor units.
In this debugging mode, following debugging functions are included on the main board:
Step 1:
Water pipe should be installed and water flow should be within 2.0~9.5m³/h
(8.8~41.8gpm). Open the debugging window of each basic module;
Step 2:
Power off all outdoor units and set one module as master. Setting methods is shown in
Master Unit Setup SA8_MASTER_S.
Step 3:
Power on all indoor units, then all outdoor modules will display “Debugging not enabled”.
Step 4:
Find out the module with “01” module address, which means master module. Press SW3
button on the master module for at least 5s and release to enable debugging.
Step 5:
System will start progress 01 and 02; in progress 01, if master unit is not set correctly,
progress 01 shows the following errors.
-
Debugging
Code
Progress Code
Status Code
Meaning
Progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
01_01 Set
up master
unit:
db
ON
01
ON
CC
ON
No master unit.
db
ON
01
ON
CF
ON
More than 2 master units are set.
db
ON
01
ON
OC
ON
Master unit setting success. Go to next
progress.
According to the above errors, reset the master unit as instructed in Master Unit Setup
SA8_MASTER_S. After reset is finished, start debugging again.
Step 6:
in progress 03, the quantity of modules should be confirmed manually. Main board of
each module displays.
-
Debugging code
Progress code
State code
Progress
LED1
LED2
LED3
Code
Display state
Code
Display state
Code
Display state
03_Quantity of
modules
db
ON
03
ON
Quantity of
modules
blink
If the displayed quantity is the same as actual quantity, then press SW3 button on the master unit
to confirm it. System will go to next progress.
-
Debugging code
Progress code
Status code
Progress
LED1
LED2
LED3
Code
Display state
Code
Display state
Code
Display state
03_Confirm
the quantity of
modules
db
ON
03
ON
OC
ON
If the displayed quantity is different from actual quantity, power off the whole system and check
whether connection of communication wire among each module is correct. After checking, start
debugging again.
Step 7:
in progress 04, the quantity of IDUs should be confirmed manually. Main board of each
module displays.
Содержание GMV-WQ120WM/A-F
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