Technibel GRF148MR5I, Техническое и сервисное руководство

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4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Outdoor Unit GRF148MR5I
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
Compressor
4-way
valve
Main
accumulator
Sub
accumulator
Service valve on
narrow tube
Service valve on
wide tube
Wide tube
BN
AN
BW
AW
O.D.9.52mm
O.D.9.52mm
Narrow tube
O.D.6.35mm
O.D.6.35mm
Heat exchanger
Capillary
tube for
split flow
Cooling cycle
Heating cycle
Defrosting cycle
Indoor unit Outdoor unit
Defrost valve
for hot gas bypass
Strainer
S
M
M
Electric
expansion
valve
Muffler
20