4. REFRIGERANT FLOW DIAGRAM
9
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.
IMPORTANT
CAUTION
Wide tube
Thickness:
Min. 8 mm
Insulation
Narrow tube
Thickness:
Min. 8 mm
Indoor unit
Service valve
on wide tube
side
Unit: mm
Service
valve on
narrow tube
Compressor
Strainer
Muffler
Muffler
Sub-
accumulator
Four-way valve
When cooling
When heating
When defrosting
Outdoor
heat
exchanger
Solenoid valve
for hot gas bypass
Electric expansion
valve
Electric
expansion
valve
Modulator
Main
accumulator
Outdoor Unit
SAP – CMRV1923GJH
2-Room Multi Refrigerant Tubing System Diagram
