CellarPro 4000SH HORIZONTAL SPLIT SYSTEM 220V 50/60HZ, 16270 - Manual (Page 20)

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transitions. Transitions should be made as close to the unit as possible.
Suction line routing must be designed to ensure oil return to the Condensing unit.
Split System Line Sizing Chart
Model
Liquid Line
Size ("ODS)
Up to 100
feet
Minimum
Suction Line
Insulation
Thickness
(in)
Up to 25 feet
Over 25 feet
up to 50 feet
Over 50 feet
up to 100 feet
3000S/Sh 1/4 1/2 1/2 1/2 1/2
4000S/Sh 3/8 1/2 1/2 1/2 1/2
6000S 3/8 1/2 1/2 5/8 5/8
8000S 3/8 5/8 5/8 5/8 7/8
Notes:
1) Line lengths are expressed in equivalent feet = actual run length + fitting allowances.
2) Chart includes allowances for Condensing Unit Service Valves, Filter Drier, and Sight Glass.
3) Use only dehydrated refrigeration service tubing and refrigeration grade fittings.
4) Install refrigeration piping in accordance with local codes and ASHRAE guidelines.
Suction Line Size by Length ("ODS)
Vertical Piping Guidelines
Piping runs should be kept as short and compact as possible. Low-lying areas
(oil “traps”) where oil can accumulate should be avoided. Refer to the following
guidelines with regards to the vertical placement of the evaporator and
condensing units: