KeepRite K40-CU-IM-13, Installation And Maintenance Instructions Manual

Page: 22 / 36

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
pressure control)
Typical Air-Cooled Condensing Unit (with Horizontal Airflow Condensers)
Refrigerant Operating Charges (LBS) (Less Evaporator and Liquid Lines)