OVERVIEW
This section deals with the information neces-
sary for installing the refrigeration lines for a
Super Plus™ refrigeration system. The Super
Plus™ components are piped as completely as
practical at the factory. Field piping requires
only interconnection of the major components
and to the refrigerators.
REFRIGERATION LINE RUNS
Liquid lines and suction lines must be free to
expand and contract independently of each
o t h e r. Do not clamp or solder them together.
Run supports must allow tubing to expand and
contract freely. Do not exceed 100 feet
without a change of direction or an off s e t .
Plan proper pitching, expansion allowance,
and P-traps at the base of all suction risers.
Use long radius elbows to reduce line resis-
tance and breakage. Avoid completely the use
of 45˚ elbows. Install service valves at several
locations for ease of maintenance and reduced
service costs. These valves must be UL
approved for 450 psig minimum working
pressure.
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA
Revised August 1, 1996 P/N 340272A
3 - 1
COMPONENT PIPING
Always use a Pressure Regulator
on nitrogen tanks.
Use only clean, dehydrated, sealed refriger-
ation grade copper tubing. Use dry nitrogen
in the tubing during brazing to prevent the
formation of copper oxide. All joints should
be made with silver alloy brazing material;
use 35% silver solder for dissimilar metals.
WARNING
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