Specifications

Multiplex Company, Inc.
Component Parts Workbook
29
00218011 Revision B (KAK) 31 July, 2000
5. Be sure to observe proper refrigeration
technique when running the Line Set.
Proper Refrigeration Technique for Running
the Line Set
a. The discharge line should loop down at
the Compressor end to trap liquid from
returning (refer to figure3).
b. The Discharge Line should loop above dis-
charge connector at the Condenser to
resist liquid returning to the Compressor.
Any excess line should be coiled horizon-
tally with line from the Compressor at top
and line to the Condenser at bottom to
keep from trapping oil and returning liq-
uid.
c. Discharge line should be trapped (P Trap)
every 20-25 ft (6.1-7.6 m) of vertical rise,
to allow oil to stair-step up to the Con-
denser and eventually return to the Com-
pressor.
Note: When the connections are made, the seal in
the couplings are broken and if removed for any
reason, the refrigerant charge will be depleted.
Caution: Relays and terminal block are energized
from each remote unit. Turn off switches on
each unit before, opening quick disconnect switch
on condensing unit. On the completion of the wir-
ing of the Remote Condenser make sure the elec-
trician placed the switch lever in the on posi-
tion. This switch must be on before turning
on the refrigeration toggle switch on the unit.
Also, the water bath must be filled with water.
Aeroquip Connection
1. Lubricate male half diaphragm and synthetic
rubber seal with refrigerant oil.
2. Thread male coupling to its proper female half
by hand to insure proper mating of threads.
3. Use proper wrenches (on coupling body hex and
its union nut) and tighten union nut until
coupling bodies bottom.
Note: You must use body wrench to keep body
from turning while tightening nut with the sec-
ond wrench. If body turns excessively, piercing seal
will be damaged.
4. Use proper wrenches to tighten an additional
1
/4 turn (90°). This final
1
/4 turn is necessary to
insure the formation of a leak proof joint.
Alternately use a torque wrench to tighten
1
/2"
Coupling to 40 ft lbs and
3
/8" fitting to 11 ft lbs.
EI216524
Equipment Installation Instructions for Multiplex
Remote Condenser and Pre-charged Refrigeration
Lines
(continued)
To the Condenser
Coil any extra Condensing Lines
in a horizontal plane with
output below input.
3" (7.6 cm) x 6" (15.2 cm)
Maximum Trap Area
Compressor
3 ft (minimum) of Discharge Line
Trap at the Compressor
Discharge Line Trap every 25
vertical ft. (7.62 m)
Discharge Line Condenser
Trap
Figure 3