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6. INSPECTIONS BEFORE OPERATION
1. Open the carton
Open it after checking the external carton. Please read the user manual carefully at least one time
and keep the documents and accessories in their proper place.
2. Check work area for unsafe conditions, such as open heat source or fire source in the area.
3. Check oil level and condition in vacuum pump, making sure the oil level is in the middle; otherwise,
change oil as described in the routine maintenance section.
4. Check valves
Verify the high/low-pressure valves and fill valve are closed, and all system switches are OFF.
5. Open the back cover at the rear of the charging machine and take out the wireless electronic scale.
Put it onto flat dry ground and turn on the scale.
6. Verify that refrigerant used in the system is the same as that in the refrigerant cylinder.
7. Take out hoses and power cable from the case at the rear of the charging machine.
8. Verify 115V power source, then tum on power supply switch.
9. Connection
Connect one end of the blue hose to "LP (low pressure)" connection on the charging machine and
the other end with the suction line on the equipment. Connect one end of the red hose with "HP
(high pressure)" connection on the charging machine and the other end with the liquid line
connection on the equipment. Connect one end of another refrigeration hose (yellow) to the valve
on the refrigerant cylinder and the other end to the refrigerant fill port of the equipment.
Note:
The system can be evacuated by a single hose connection. In this case, either red or blue hose
connection will work.
7. OPERATION PROCEDURES
7.1. Main Menu
07
LT mm
I
HT mm
I
R410A
I
Scale mm
Initial Setup
Auto mode: Evac Charging by Weight
Manual mode: Evacuation
Charging by Weight
Charging by SC/SH
System Monitor
Purging
Main Menu
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Initial Setup
Set up the refrigerant, pressure, vacuum, temperature, weight,
target vacuum, sensor zero, bluetooth sync, etc.
Evac Charging
Automatic evacuation, raising test, and charging.
By Weight
Evacuation
Evacuate the system by setting the target vacuum.
Charging By Weight
Set the target weight and charge.
Charging By SH/CH
Manual charge by temperature.
System Monitoring
Display the SH/CH readings.
Purging
Purge the refrigerant within the machine.
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