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service
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service
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Cooling cycle
Indoor unit Outdoor unit
Electric
expansion
valve
M
*1
*1 O.D.1/2"(12.7mm)
...
1872 class
O.D.5/8"(15.88mm)
...
2472 class
O.D.
1/4"
(6.35 mm)
H.P.
High pressure
switch
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit KS1872
KS2472
Outdoor Unit C1872 C2472
CL1872 CL2472
Insulation of Refrigerant Tubing
Because capillary tubing is used in the outdoor unit, both the
wide and narrow tubes of this air conditioner become cold. To
prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a
proper insulation material. The thickness of the insulation
should be a min. 5/16"(8 mm).
After a tube has been insulated,
never try to bend it into a narrow
curve because it can cause the tube
to break or crack.
Wide tube
Thickness:
Min. 5/16"(8 mm)
Insulation
Narrow tube
Thickness:
Min. 5/16"(8 mm)
IMPORTANT
CAUTION
24