Refrigeration Cycle Diagram
–9–
Heat Pump
• If 60K Model is installed at a distance of 15m, 525g of refrigerant should be added 
(15-7.5) x 70g = 525g
30K BTU/h
5/8" 3/8" 7.5 15 7.5 12.5 70
36K BTU/h
5/8" 3/8" 7.5 15 7.5 12.5 50
42K BTU/h 3/4'' 3/8" 7.5 15 7.5 12.5 70
48K BTU/h 3/4'' 3/8" 7.5 15 7.5 12.5 70
60K BTU/h 3/4'' 3/8" 7.5 15 7.5 12.5 70
72K BTU/h 1'' 1/2" 7.5 25 7.5 20 70
90K BTU/h 9/8'' 5/8" 7.5 30 7.5 20 90
100K BTU/h 9/8'' 5/8" 7.5 30 7.5 20 100
Capacity
Gas Liquid
Elevation B(m)
Piping Length
A(m)
* Additional
Refrigerant
(g/m)
Pipe Size (Diam-
eter: Ø)
inch
Standard
Standard
Max.
Max.
Capacity Orifice Number
30K 63
36K 62
42K 74
48K 86
60K 86
72K 98
90K 84
100K 104
Orifice Number