22
Installation and Maintenance
Service Manual
indoor unit and the refrigerant pipe.
②
.
The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid refrigerant pipe which is decided by
the actual yield installation requirement.
③
.
Record the additional refrigerant charge for future maintenance.
b. Calculation of the Additional Refrigerant Charge
Additional Refrigerant Charge=
(
ΣLength of Liquid Pipe Φ9.52X54+ΣLength of Liquid PipeΦ6.35X22)-880
The biggest additional refrigerant charge value is 800g. It means that if the calculated value exceed 800g, the additional refrigerant charge
takes 800g, while the calculated value less than 800g, the additional refrigerant charge takes the calculated value.
8.2.4 Electric Wiring
1) Wiring precautions
● The installation must be done in accordance with the national wiring regulations.
● Only the power cord with the rated voltage and exclusive circuit for the air conditioning can be used.
● Do not pull the power cord by force.
● The electric installation should be carried out by the technician as instructed by the loc al laws, regulations and also this manual.
● The diameter of the power cord should be large enough and once it is damaged it must be replaced by the dedicated one.
● The earthing should be reliable and the earth wire should be connected to the dedicated device of the building by the technician. Besides,
the air switch coupled with the leakage current protection switch must be equipped, which is of enough capacity and of both magnetic and
thermal tripping functions in case of the short circuit and overload.
C
HML-U
36R
K4
32
32
Models
C
HML-U
36R
K4
Power Supply
220-240V~,50Hz
Capacity of the air Switch(A)
Recommended Cord(piecesx
sectional area)
220-240V~,50Hz
CHML-U
42R
K5
3x4mm
2
3x4mm
2
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C
HML-U
42R
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