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6/21 57-02611 / 101628 ©2021, Refrigerated Solutions Group™. All rights reserved. 13
NOTE: Install evaporator coil in accordance with the manufacturer's recommendations
from inside wall or obstructions to rear of evaporator.
● Drill holes through the walk-in wall large enough to pass refrigeration lines, electrical line and
drain line.
● Connect liquid and suction lines to the coil and the condensing unit.
● Lubricate rubber seal in male half of coupling with refrigeration oil.
● Thread coupling halves together by hand to ensure proper mating of
threads. Tighten with wrenches until coupling bodies “bottom” or a
definite resistance is felt (See Figure #2.)
Figure #2 Quick-Couple Coupling Detail
● Using a scribe or ink pen, mark a line lengthwise from the coupling hex to the bulkhead. Then tighten
an additional 1/6 to 1/4 turn. The misalignment of the mark will show the degree of tightening for future
reference. This final turn is necessary to ensure that the knife edge metal seal bites into the brass seat of
the coupling halves, forming a leak-proof joint.
● When routing refrigeration lines, special care should be taken not to “kink” the lines and restrict the
flow of refrigerant.
NOTE: Wiring diagrams are located inside the pre-wired electrical panel on
the condensing unit.
CAUTION
Be sure the electrical supply is sufficient for all electrical loads of the Quick-Couple
Remote Refrigeration system.
●
Connect correctly rated over current protection device in the service line to the service line
J-box on the condensing unit.
● After routing condensate line from drain pan of evaporator coil, seal around all refrigeration,
electrical and drain lines with silicone or butyl caulking.
● Start compressor and allow to run at least 24 hours before placing product into the walk-in.
During the testing period you should:
● Check the temperature holding range against the control setting.
● On low temperature units, check the defrost control system to see that all ice is removed from
the coil during each defrosts cycle.
● Perform checks of door operation and all other component operations.
These systems are pre-charged at the factory with proper refrigerant, but should be operationally
checked as per page 11, A.6 and A.7.
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