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5. Refrigerating Cycle Block Diagram
Refrigerating cycle temperature and pressure
STD Pressure Piping Temp.(°F) Temp. Condition (°F)
Operating Condition (psi)
T1 T2
Indoor Outdoor
3-WAY V/V DB WB DB WB
Standard 57-71 50-54 50-54 80 67 95 75
Cooling Max over load - 61-64 61-64 80 67 115 75
Low temp. - 34-39 34-39 67 57 67 57
Standard 242-284 90-97 140-158 70 60 47 43
Heating Max over load - 97-104 149-167 80 - 75 65
Deice - 82-90 104-113 70 60 35 33
INDOOR UNIT OUTDOOR UNIT
Capillary tube
Capillary tube
Heat
exchanger
(Condenser)
4Way valve
3Way valve
2Way valve
Compressor-B
Compressor-A
Gas side
Liquid side
Cross fan
Cross fan
Propeller fan
T2
T1
(A)
(B)
Check valve
Heat
exchanger
(Evaporator)
DB98-05645A(1)-2 5/30/02 7:06 PM Page 31
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