GM-820A-Dual A/C SYSTEM MAINTENANCE CENTRE-DUAL
9
a) Connect the two
RED
hoses
to the
HP ports
.
b) Connect the two
blue hoses
to the
LP ports
.
c) Connect the
RED
and
BLUE
couplers of R134a to the
RED
and
BLUE
pipes of R134a
respectively.
d) Connect the
RED
and
BLUE
couplers of R1234yf to the
RED
and
BLUE
pipes of R1234yf
respectively.
F.
Initialization
G.
Supply refrigerant to the new equipment (please refer to the SUPPLY FUNCTION section)
Note:
As the new equipment is empty, the Flushing and Recharging functions will not be performed.
In order to ensure all functions normal, about 4kg R134a and 4kg R1234yf refrigerant need to be
filled to the tanks. If it is not necessary to use the Flushing function, replenish at least 2kg.
H.
Please read this user manual carefully before operating.
3) Preparations before Run Flushing function
A. Check the refrigerant type of the automobile air conditioning, and connect the right couplers to the A/C
service ports, and open the couplers on.
B. Start the car, and run the A/C for about 5 minutes.
C. Check whether the high and low pressure of A/C is normal. Check whether there is abnormal noise
when the compressor works. If there is any abnormality, it must be repaired first.
D. Turn off the air conditioner and turn off the engine.
E. Empty the used oil bottle. Add an appropriate amount of new oil into the new oil bottles (Note: PAG and
Poe types).
F. Turn on and prepare for work.
Warning: When the machine is running, never to run the A/C system!
4)
Power On
A. If the equipment detects abnormal information, it will give a prompt, which should be handled in time. If
there is no prompt message, it will go to the next interface directly.
