Refrigerant Flow Diagram - Technibel GRF314M35IAA Technical & Service Manual

4. REFRIGERANT FLOW DIAGRAM

Outdoor Unit GRF314MR5IAA
When cooling
When heating
When defrosting
Outdoor
heat
exchanger
Strainer
Insulation of Refrigerant Tubing
IMPORTANT
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.
CAUTION
4-Room Multi-Refrigerant Tubing System Diagram
4-way valve
Solenoid valve
for hot gas bypass
Muffler
Main
accumulator
Compressor
Receiver tank
Electric expansion
valve
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.
Muffler
Sub-
accumulator
Electric
expansion
valve
Thickness:
Min. 8 mm
Wide tube
6
Unit: mm
Service valve on
wide tube side
Indoor unit
Service valve on
narrow tube side
Insulation
Thickness:
Min. 8 mm
Narrow tube