Bosch LM024 Operating Instructions Manual page 11

LM CS Series Heat
Figure 10: Refrigerant Charge, Line Sizing and Capacity Multiplier Chart
SYSTEM Factory
R410A
MODEL
Charge
(Oz)*
LM024 80
LM036 86
LM048 93
LM060 115
LM070 127
CAPACITY MULTIPLIER
Example 1:
Model LM036 with 45ft of equivalent length of 3/8" O.D Liquid
Line. Total system charge= Factory charge + (45ft - 25 ft) x .60
oz/ft Total System Charge = 93 oz + (20ft x .60 oz/ft) = 105 oz.
Additional 12 oz of R410A refrigerant required.
Figure 11: Liquid Line Charge Per Linear Foot
R410A oz per foot
Revised 01-14
Refrigerant Line O.D. Size (Based on Equivalent Line Length)
25 FT. 35 FT.
LIQ. SUC. LIQ.
3/8 3/4 3/8
3/8 3/4 3/8
3/8 7/8 3/8
3/8 1-1/8 3/8
3/8 1-1/8 3/8
1.00 .995
Liquid Line Size, O.D.
1/4 5/16 3/8
.25 .44 .60
45 FT. 50 FT.
SUC. LIQ. SUC. LIQ.
3/4 3/8 3/4 3/8
3/4 3/8 3/4 3/8
7/8 3/8 7/8 3/8
1-1/8 3/8 1-1/8 3/8
1-1/8 3/8 1-1/8 3/8
0.990 0.990
Example 2:
Model LM060 with 10ft of equivalent length of 3/8" O.D
Liquid Line. Total system charge= Factory charge + (25ft -
10ft) x .60 oz/ft Total System Charge = 150 oz + (15ft x .60
oz/ft) = 141 oz. Additional 12 oz of R410A refrigerant
required.
1/2 5/8
1.15 1.95
Comfort Alert Module | 11
Suct. Line
Riser Max.
75 FT
SUC. LIQ. SUC.
3/4 3/8 7/8
7/8 3/8 7/8
7/8 3/8 7/8
1-1/8 3/8 1-1/8
1-1/8 3/8 1-1/8
0.980
8 733 920 847 (2014/01)
3/4
3/4
7/8
7/8
7/8