Page 8
Safety Operation of Flammable Refrigerant
Qualification requirement for installation and maintenance
Contact the authorized service technician for repair or maintenance of this unit.
For any service technical support, call the customer center.
Installation Notes
The air conditioner is not allowed to use in a room that has running fire such as fire source, working coal gas ware,
operating heater.
Leak test must be performed after installation.
Maintenance Notes
1. Check whether the maintenance area or the room area meet the requirement of the nameplate.
It is only allowed to be operated in the rooms that meet the requirement of the nameplate.
2. Check whether the maintenance area is well ventilated.
The continuous ventilation status should be kept during the operation process.
3. Check whether there is fire source or potential fire source in the maintenance area.
The naked flame is prohibited in the maintenance area and the
“No Smoking” warning should be hanged.
4. Check whether the appliance mark is in good condition.
Replace the vague or damaged warning label.
Welding
1. If you have to cut or welding the refrigerant system pipes in the process of maintaining, please follow the below
steps:
•
Shut down the unit and cut power supply.
•
Safely remove the refrigerant.
•
Vacuuming.
•
Clean it with N
2
gas.
•
Cutting or welding
•
Carry back to the service spot for welding
2. The refrigerant should be recycled into the specialized storage tank.
3. M
ake sure that there isn’t any open flame near the outlet of the vacuum pump and it is well ventilated.
Filling the refrigerant
1. Use the refrigerant filling equipment specialized for R32. Make sure that different kinds of refrigerant won
’t
contaminate with each other.
2. The refrigerant tank should be kept upright at the time of filling refrigerant.
3. Stick the label on the system after filling is finished.
4. D
on’t overcharge. Charge only with amount specified on nameplate.
5. After filling is finished, please test for leakage before starting unit. This should be done prior to when the
refrigerant is removed.
6. The filling work must be performed by certificated technician.
Safety instruction for transportation and storge
1. Pease use the flammable gas detector to check before unload and open the container.
2. No fire source and smoking.
3. Follow the local rules and laws.
Storage after moving the unit
1. Do not puncture or light the unit.
2. The unit shall be stored in a room without continuous fire source such as naked fire, litten gas appliance,
operating electric heater.
3. The unit shall be stored in a ventilated place. The ventilation device shall operate normally and ventilation port
should be clear of any blockages.
4. Check the unit periodically to see if there is collision mark and if the appearance is good.
5. Check the electronic components (eg: cable) periodically to see there is breakage.
6. Do not impact or collapse the unit to avoid leakage of refrigerant. If leakage is found, please arrange
ventilation immediately and ask the professionals for maintenance in order to avoid a fire hazard.
Summary of Contents for U-SHAPE Series
Page 6: ...Page 6 ...
Page 27: ...Page 27 Function Buttons ...
