7-2. Refrigerant Cycle Diagram
RAS-B18UFV-E / RAS-18SAV-E
NOTE :
• The maximum pipe length of this air conditioner is 20m. When the pipe length exceeds 15m, the additional
charging of refrigerant, 20g per 1m for the part of pipe exceeded 15m is required. (Max. 100g)
Max. : 20m
Min. : 2m
Chargeless : 15m
Charge : 20g/m
(16 to 20m)
Deoxidized copper pipe
Outer dia. : 12.7mm
Thickness : 0.8mm
NOTE:
Gas leak check position
Refrigerant flow (Cooling)
Refrigerant flow (Heating)
INDOOR UNIT
T1 Temp. measurement
Indoor heat
exchanger
Turbo fan
Sectional shape
of heat insulator
Allowable height
difference: 10m
Allowable pipe length
P
Pressure measurement
Gauge attaching port
Vacuum pump connecting port
Strainer
Pulse Modulating valve
at liquid side
(CAM-B22YGTF-3)
TD
4-way valve
(STF-0108Z)
Compressor
DA130A1F-27F
Propeller fan
Refrigerant amount: 1.40kg
OUTDOOR UNIT
TC
TA
Outdoor heat
exchanger
Split capillary
2-dia. 1.2 × 80
TE
Muffler
Muffler
Accumulater tank
Deoxidized copper pipe
Outer dia. : 6.35mm
Thickness : 0.8mm
TS
TO
Distributor
T2
Temp. measurement
– 24 –
RAS-B18UFV-E / RAS-18SAV2-E
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