KeepRite K40-CU-IM-13 - Refrigerant Operating Charges; Air-Cooled Unit Charges; Liquid Line Charge Data

22
For R-134a charges consult factory.
Line Size (inches) R-134a, R-22 R-404A, R-507
3/8 0.4 0.34
1/2 0.74 0.64
5/8 1.19 1.03
7/8 2.47 2.12
1 1/8 4.22 3.61
1 3/8 6.42 5.5
1 5/8 9.1 7.8
Refrigerant Charge (LBS) for
Liquid Lines (per 10 Feet)
Model HP R-22 R-404A / R-507 Model HP R-22 R-404A / R-507
1/2 H, M
2.0 1.7
1/2 H, M
3.3 2.9
1/2 L
2.0 1.7
1/2 L
3.3 2.9
3/4 H, M
2.4 2.1
3/4 H, M
4.2 3.6
3/4 L
2.0 1.7
3/4 L
3.3 2.9
1 H, M & L
3.2 2.8
1 H, M & L
4.9 4.3
1 1/2 H, L
4.2 3.7
1 1/2 H, L
6.1 5.3
1 1/2 M
5.1 4.4
1 1/2 M
7.6 6.6
2 H, M, L
5.1 4.4
2 H, M, L
7.6 6.6
3 H, M, L
6.5 5.7
3 H, M, L
10.2 8.9
3 1/2 M
6.1 5.3
3 1/2 M
9.8 8.5
3 1/2 L
8.3 7.2
3 1/2 L
13.5 11.8
4 H, M
7.7 6.7
4 H, M
13.1 11.4
4 L
8.5 7.4
4 L
13.7 11.9
5 H
7.7 6.7
5 H
13.1 11.4
5 M
13.4 11.7
5 M
22.8 19.8
6 L
11.5 10.0
6 L
19.3 16.8
7 1/2 M †
19.6 17.1
7 1/2 M †
28.5 24.8
7 1/2+M †
25.5 22.2
7 1/2+M †
38.9 33.0
7 1/2 L †
16.3 14.2
7 1/2 L †
22.8 19.8
9 L
19.6 17.1
9 L
28.5 24.8
10 M, L
23.5 20.4
10 M, L
38.0 33.0
15 M, L
32.6 28.3
15 M, L
54.3 47.2
20 M
47.9 41.7
20 M
65.3 56.8
20 L
36.7 31.9
20 L
54.3 47.2
25 M, L
47.9 41.7
25 M, L
72.2 62.8
30 M, L
47.9 41.7
30 M, L
72.2 62.8
* Above conditions are with condenser 40 % full and receiver 10 % full.
** Above conditions are with condenser flooded at between 60 - 80 % full with fan cycling where
available and receiver 10 % full.
H = High temperature M = Medium temperature L = Low temperature
† = on KE 7.5 HP machines, use refrigerant charge indicated for 6 HP
Warm Ambients * (above 50
o
F) ambient
application
Cold Ambients ** (below 50
o
F) (outdoor
winter operation with flooded head
p
ressure control
)
Typical Air-Cooled Condensing Unit (with Horizontal Airflow Condensers)
Refrigerant Operating Charges (LBS) (Less Evaporator and Liquid Lines)