Compressor
4-way
valve
Accumulator
High pressure
switch
Wide tube
service
valve
Wide tube
Narrow
tube
service
valve
Narrow tube
Heat exchanger
Muffler
Capillary
tube for
split flow
Cooling cycle
(Defrosting cycle)
Heating cycle
Indoor unit
Outdoor unit
Electric
expansion
valve
Strainer
M
O.D.
1/2"
(12.7mm)
O.D.
1/4"
(6.35 mm)
H.P.
Indoor Unit
XHS1872 & PNR-XS1872
Outdoor Unit
CH1872
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
Heat exchanger
Strainer
21
