Unitary products group HF-25 - 25 Ton, Руководство по установке, Страница: 14 / 36

278806-BIM-A-1106
14 Unitary Products Group
TABLE 7: LIQUID LINES
Model Designation
Nominal
Capacity
(Tons)
Refrigerant
Flow Rate
(Lbs./Min.)
Copper Tubing
(Inches, O.D.)
Refrigerant
Liquid Velocity
(Ft./Min.)
Friction Loss
(PSI/100 Ft.)
HF-25 System #1 Full Capacity 25 80
5/8 500 14.2
7/8 265 3.4
1 1/8 156 1.0
HL-30
System #1 Full Capacity 15 47
5/8 330 7.9
7/8 159 1.4
1 1/8 100 0.8
System #2 Full Capacity 15 47
5/8 330 7.9
7/8 159 1.4
1 1/8 100 0.8
HL-40
System #1 Full Capacity 20 64
5/8 440 13.2
7/8 212 2.3
1 1/8 90 0.6
System #2 Full Capacity 20 64
5/8 440 13.2
7/8 212 2.3
1 1/8 90 0.6
HL-50
System #1 Full Capacity 25 76
5/8 400 8.5
7/8 265 3.4
1 1/8 156 1.0
System #2 Full Capacity 25 76
5/8 400 8.5
7/8 265 3.4
1 1/8 156 1.0
TABLE 8: R-22 LINE CHARGE
1
LINE SET, O.D.
2
O.D., (INCHES) REFRIGERANT, LB/FT
LIQUID 7/8 0.236
SUCTION
1 5/8 0.019
2 1/8 0.033
1.
Charges based on 40ºF suction temperature and 105ºF liquid temperature.
2.
Type “L” copper tubing.
NOTE: Add the operating charge of the condensing unit, evaporator coil and 25 feet of interconnecting piping to any additional piping
refrigerant charge required (determined from Table 8) for total system charge.