Connect Condensate Drain; Install Duct Connections - Carrier SINGLE PACKAGED ELECTRIC COOLING UNITS 50GS Installation And Operating Instructions Manual

SIZE
lb.
018 276
024 282
030 280
036 290
042 316
048 346
060 411
024 292
030 313
036 321
042 343
048 348
060 421
Lifting point should be directly over the center of gravity for
the unit.
Step 6—Connect Condensate Drain
NOTE: When installing condensate drain connection be sure to
comply with local codes and restrictions.
Models 50GS and 50GX dispose of condensate water through a
3/4 in. NPT fitting which exits through the base on the evaporator
coil access side. See Fig. 2 & 3 for location.
Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground-
level installations. Install a field-supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1 in. lower than the drainpan
condensate connection to prevent the pan from overflowing (See
Fig. 7). When using a gravel apron, make sure it slopes away from
the unit.
Connect a drain tube using a minimum of 3/4 -in. PVC or 3/4 -in.
copper pipe (all field-supplied) at the outlet end of the 2-in. trap.
"A"
"B"
PLACE RIGGING BRACKET ASSEMBLY IN 4
RIGGING HOLES AND INSTALL TIE DOWN STRAP
AROUND PERIMETER OF UNIT AND THROUGH
SPACE IN BRACKET ASSEMBLY
SEE DETAIL A
MAXIMUM WEIGHT
kg
125.2
127.9
127.0
131.5
143.3
156.9
186.4
132.5
142.5
145.6
155.6
157.9
191.0
Fig. 6—Suggested Rigging
914-137"
(36"-54")
TIGHTEN STRAPPING SECURELY
WITH TENSION BUCKLE
INSTALL SAFETY STRAPS TO
RIGGING CLEVIS AT 4 RIGGING BRACKETS
A
in. mm.
UNIT 50GS
20 508.0
19 482.6
19 482.6
20 508.0
19 482.6
20 508
19 482.6
UNIT 50GX
18.5 469.9
19.5 495.3
19.5 495.3
20.5 520.7
19.5 495.3
20.5 520.7
Do not undersize the tube. Pitch the drain tube downward at a
slope of at least 1-in. for every 10 ft. of horizontal run. Be sure to
check the drain tube for leaks. Prime trap at the beginning of the
cooling season start-up.
Step 7—Install Duct Connections
The unit has duct flanges on the supply- and return-air openings on
the side and bottom of the unit. For downshot applications the
ductwork can be connected to the roof curb. See Fig. 2 & 3 for
connection sizes and locations.
IMPORTANT: Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gaskets to
ensure weathertight and airtight seal. When electric heat is
installed, use fire proof canvas (or similar heat resistant material)
connector between ductwork and unit discharge connection. If
flexible duct is used, insert a sheet metal sleeve inside duct. Heat
resistant duct connector (or sheet metal sleeve) must extend 24-in.
from the unit discharge connection flange into the ductwork.
7
DETAIL A
SCALE 0.250
B
in.
13
13
14
14
14
17
16
14.50
15.50
15.25
16.75
17.62
16.25
C99066
mm.
330.2
330.2
355.6
355.6
355.6
431.8
406.4
368.3
393.7
387.4
425.5
447.6
412.8