Sanyo DC INVERTER SPLIT SYSTEM AIR CONDITIONER C1271 - Manual (Page 29)

Wide tube
Narrow tube
Indoor unit
O.D.
1/2"
(12.7mm)
O.D.
1/4"
(6.35 mm)
Indoor Unit XS1872 & PNR-XS1872 Outdoor Unit C1872
CL1872
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
Compressor
Accumulator
Wide tube
service
valve
Narrow
tube
service
valve
Heat exchanger
Muffler
Cooling cycle
Outdoor unit
Electric
expansion
valve
M
H.P.
High pressure
switch
29