Sanyo 1 852 351 85, Technical & Service Manual

Page: 102 / 164

4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Indoor Unit SAP-K77GHAX
SAP-K97GHAX Outdoor Unit SAP-C77GHAX
SAP-C97GHAX
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. 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. 8 mm
Insulation
Narrow tube
Thickness:
Min. 8 mm
IMPORTANT
CAUTION
19
Compressor
4-way
valve
Accumulator
Wide tube
service
valve
Wide tube
O.D.
9.52 mm
(3/8 ")
Narrow
tube
service
valve
Narrow tube
O.D.
6.35 mm
(1/4")
Heat exchanger
Heat exchanger
Cooling cycle
Heating cycle
t i n u r o o d t u O t i n u r o o d n I
Capillary tube
both for heating
and cooling
( )