Water-cooled Heat Recovery DC Inverter VRF
45
If unit detects that valve state is abnormal, display as below:
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
10_State
judgments of
outdoor valves
before startup
db
ON
10
ON
U6
ON
Outdoor valves are not fully opened.
Check the gas and liquid valves whether they are fully opened. After checking, press SW4 return
button to restart the judgments.
If detects the valve state is normal, display as below and go to next progress.
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
10_State
judgments of
outdoor valves
before startup
db
ON
10
ON
OC
ON
Outdoor valves are opened.
Step 14:
progress 11 is “Calculate refrigerant amount manually”
No need to operate. System goes to next progress.
Step 15:
progress 12 is “Confirm debugging startup”
In order to make sure all preparation work is finish before startup, this step is to confirm the
startup again. Operation is as below.
If master unit displays as below, system is waiting for confirmation signal.
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
12_State
judgments of
outdoor valves
before startup
db
ON
12
ON
AP
Blink
Ready for units to start debugging.
If it’s confirmed, press SW3 button. Unit displays as below and go to next progress.
-
Debugging code
Progress code
State code
Meaning
progress
LED1
LED2
LED3
Code
Display
state
Code
Display
state
Code
Display
state
12_State
judgments of
outdoor valves
before startup
db
ON
12
ON
AE
ON
Manual calculation of refrigerant
amount.
Step 16:
After unit confirm to start debugging, system select cooling/heating mode according to
water inlet temperature.
A If cooling mode is selected, relevant display is as below.
Summary of Contents for GMV-WQ120WM/A-F
Page 58: ......
