V 07/21
36
Filling the refrigerator circuit
Use refrigerant filling appliances specialized for R32. Make sure that different kinds of
refrigerant don’t contaminate one another.
The refrigerant tank should be kept upright when filling with the refrigerant.
Stick the label on the system after filling is finished.
Don’t
overfill.
After filling is finished, please test the unit for leakage detection before the operation test;
another test for leakage detection should be carried out when the refrigerant is removed.
Safety instructions for transportation and storage
Please use a flammable gas detector to check before unloading and opening the container.
No fire source and no-smoking.
According to the local rules and laws
TESTING AND OPERATION
Test operation
Preparation of test operation
- The client approves the air conditioner.
- Specify the important notes for air conditioner to the client.
Method of test operation
- Put through the power, press ON/OFF button on the remote controller to start operation.
- Press MODE button to select AUTO, COOL, DRY, FAN and HEAT to check whether the
operation is normal or not.
- If the ambient temperature is lower than 16
℃
，
the air conditioner can’t start cooling.
APPENDIX
Configuration of connection pipe
1. Standard length of connection pipe: 5m, 7.5m, 8m.
2. Min. length of connection pipe.
For the unit with standard connection pipe of 5m, there is no limitation for the min length of
connection pipe. For the unit with standard connection pipe of 7.5m and 8m, the min length of
connection pipe is 3m.
Max. length of connection pipe is shown as below.
Models 14-18K
21-24K
28K
Max length of connection
pipe
40 60 70
Max length of connection
pipe (simple one indoor
unit)
20 20 20
1. Method to calculate the additional charge amount of oil and refrigerant with the extended
connection pipe: if the length of the connection pipe is increased by 10m compared to the standard
length, add 5ml of refrigerant oil for every 5m of pipe added.
Method for calculating the amount of additional refrigerant charge (liquid pipe):
