Installation Instructions Suction Line and Service Valve Assemblies
Publication Number: 630460289INS
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© 2005-2014, Cornelius Inc.
17. Remove the bulkhead seals at the front of
the evaporator assembly.
Remove the insulation from the evaporator
inlet and outlet lines (FIGURE 14).
Remove enough insulation to safely
disconnect these lines.
WARNING: All plastic, electrical, or sensing
components, assemblies, or harnesses must
be protected when heating the refrigeration
lines.
Failure to take appropriate actions may
result in damage to the unit.
THE REFRIGERANT IN THE SYSTEM
SHOULD BE RECOVERED AND THE
SYSTEM PURGED WITH NITROGEN PRIOR
TO ANY BRAZING OPERATIONS.
Failure to take appropriate actions may
cause damage to the unit and result in
personal injury or death.
FIGURE 14
18. If the refrigerant in the system has been
fully recovered, open the high side service
valve.
Attach a nitrogen feed (a) to the low side
service valve (5-10 psi) (FIGURE 14).
Open the low side service valve to purge
the system with nitrogen.
As power to the unit has been
disconnected, disassemble the hot gas
valve to allow nitrogen to flow through the
entire system (FIGURE 15).
19. Protecting the water pump and plastic
bulkhead from heat, remove the
evaporator piping at the bulkhead
(FIGURE 14).
FIGURE 15
Ring Seal
a
