1
1. Installation
1-1 Refrigerant Refill Procedure
• You can install 15m of connecting pipe to the maximum, and you don’t have to charge any
addtional refrigerant.
1. Remove the valve stem cap and service port of 3-way
valve.
3. Operate the unit at the cooling mode.
4. Slowly open the valve of the low pressure side of
Manifold gauge counterclockwise until the low pressure
of manifold gauge indicates 4.8 to 5.5 kg/cm
2
(68 a
78psi) at the high cool operation (1-unit operation) and
the standard temperature.
It is recommend that refrigerant should be slowly put in.
If the refrigerant is put in too quickly, compressor will be
damaged.
5. Stop operation of the air conditioner.
6. Disconnect the charge hose of manifold gauge.
7. Close the cap of each valve.
2. Connect the charging hose of low pressure side of
Manifold gauge to the packed valve having a charging
port(1/2” Packed valve) as shown at the right figure.
• Piping length and the height
INDOOR UNIT
OUTDOOR UNIT
A
B
A-UNIT
15m(49ft 3in)
15m(49ft 3in)
15m(49ft 3in)
7m(23ft)
7m(23ft)
7m(23ft)
Max.piping
length
A
Max
height
B
LIQUID GAS
1/4” 1/2”
1/4” 3/8”
1/4” 3/8”
B-UNIT
C-UNIT
Pipe Size
INDOOR
A-UNIT
INDOOR
B-UNIT
INDOOR
C-UNIT
DB98_05644A(1)_1 5/30/02 6:53 PM Page 1
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