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38MGRBQ: Service Manual
Long Line Applications:
1. No change in line sizing is required.
2. Add refrigerant.
Unit Size
No. of Zones
18
24
30
36
48
NOTE: If the calculation results in a negative number no additional refrigerant is required. Electronic expansion valves in the outdoor unit
are used as metering devices.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 14 — Additional Charge Table Per Zone
Charge oz. (kg.)
2
70.55 (2.0)
3
98.76 (2.8)
4
105.82 (3.0)
4
162.26 (4.6)
5
162.26 (4.6)
Additional Charge
Additional Charge
Required After ft. (m)
49 (15)
74 (22.5)
98 (30)
123 (37.5)
123 (37.5)
18
Total Maximum
oz./ft. (g/m)
Piping Length ft. (m.)
0.16 (15)
131 (40)
0.16 (15)
197 (60)
0.16 (15)
263 (80)
0.16 (15)
328 (100)
0.16 (15)
328 (100)
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