Federal EIMSS60 Installation & Operation Manual page 34

Remote Condensing Unit Installation
1. Mount condensing unit as close as possible to the remote display case as practical.
Follow condensing unit manufacturer guidelines for proper piping and distance
requirements.
2. All refrigeration and/or electrical materials between the condensing unit and display
case are to be supplied by installing contractor.
3. Route properly sized and designed refrigeration lines from the condensing unit to the
cabinet.
Horizontal suction lines should be pitched downward towards the condensing unit at
least ½" per 10' run to aid the oil drainage. A "P" trap must be installed in the suction
line at the foot of every riser to insure oil return. Dry nitrogen must be used to flow
through tubing while brazing refrigeration lines.
4. Suction line must be insulated the entire length with Armaflex (or equivalent). Do not
run liquid line inside insulation with suction line.
5. The remote high/low-pressure control must be mounted, wired and set pressures by
the installer.
6. Leak check condensing unit, cabinet, and all connecting tubing. Cabinet and
condensing unit tubing should be checked to insure no leaks occurred during
shipping or from rough handling.
Make certain all refrigeration valves are opened and evacuate system to 500
microns. Charge the system with refrigerant type specified on the data plates.
REMOTE
HIGH LOW
PRESSURE
CONTROL
HOT
FUSED
POWER
SUPPLY
REMOTE
CONDENSING
UNIT
IMSS E3265
AIR TEMP. CONTROL PROBE
EVAPORATOR
COILS
HIGH
FUSED
LOW
CASE
ELECTRONIC
POWER
CONTROL
SUCTION LINE (INSULATED)
LIQUID LINE
DISPLAY CASE
DEFROST
EXPANSION
TERMINATE
VALVE
PROBE
DRIER/FILTER
SIGHT GLASS
LIQUID LINE
SOLENOID VALVE
FIELD CONNECTION
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