3-12
Samsung Electronics
Operating Instructions and Installation
3-2-2(h) Refrigerant Refill Procedure
If connecting pipe of more than 10 metres is installed, additional refrigerant should be charged by
extra metre. You don’t have to charge additional refrigerant up to 10 metres of connecting pipe.
1 . Remove the valve stem cap and service
port of 3-way valve.
2 . Connect the charging hose of low pre s s u re
side of Manifold gauge to the packed valve
having a charging port(3/8” Packed valve)
as shown at the right figure .
3 . Operate the unit at the cooling mode.
4 . Slowly open the valve of the low pre s s u re
side of Manifold gauge counterc l o c k w i s e
until the low pre s s u re of manifold gauge
indicates 4.8 to 5.5 kg/cm
2
at the high cool
operation(1-unit operation) and the stan-
d a rd temperature.(for details, see the page
3 - 1 4 )
It is recommend that regrigerant 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
g a u g e .
7 . Close the cap of each valve.
• Formulas
A-unit : 10g x (La - 5) / m
B-unit : 10g x (Lb - 5) / m
( La : the length of A-unit’s pipe)
( Lb : the length of B-unit’s pipe)
• Piping length and the height
Additional refrigerant change
( R 2 2 , g )
• When length of the pipe is
over 5u by the unit, you
should charge
the refrigerant Formulas
A-UNIT : 10gx(L
a
- 1 0 ) / m
B-UNIT : 10gx(L
b
- 1 0 ) / m
( L
a
:the length of A-unit’s
pipe L
b
:the length of
B-unit’s pipe)
3-3-2(i) Flare unt fixing torque
AM18A1(B1)E09
AM18A1(B1)B09
AM19A1(B1)E07
AM19A1(B1)E12
15m
15m
3m
3m
Max.piping
length
A
Max
height
BLIQUID GAS
1/4” 3/8”
1/4” 1/2”
Pipe Size
INDOOR
A-UNIT
INDOOR
B-UNIT
Torque (kg-cm)
Fixing Torque Final Torque
ø 6.35(Liquid Side) 160 200
ø 9.52(Gas Side) 300 350
ø 12.7(Gas Side) 500 550
Outter diameter
INDOOR UNIT
OUTDOOR UNIT
A
B
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