Samsung AD18A1(B1)E09, Service Manual

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3-12
Samsung Electronics
Operating Instructions and Installation
3-2-2(h) Refrigerant Refill
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.
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 pres-
sure of manifold gauge indicates 4.8 to 5.5 kg/cm2 (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
Additional refrigerant charg e
( 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)
3-2-2(i) Flare unt fixing torque
Torque (kg-cm)
Fixing Torque Final Torque
ø6.35(Liquid Side) 160 200
ø9.52(Gas Side) 300 350
ø12.7(Gas Side) 500 550
15m
15m
15m
15m
3m
3m
3m
3m
M a x . p i p i n g
length
A
Max
height
B LIQUID GAS
1/4” 1/2”
1/4” 1/2”
1/4” 3/8”
1/4” 3/8”
AD24A1(B1)E12
AD19A1(B1)E12
AD18A1(B1)E09
AD19A1(B1)E07
Pipe Size
INDOOR
A-UNIT
INDOOR
B-UNIT
Outter diameter
INDOOR UNIT
OUTDOOR UNIT
A
B