If the installation requires draining the condensate water away
from the unit, install a field-supplied 2 -in. trap at the condensate
connection to ensure proper drainage. Condensate trap is available
as an accessory or is field-supplied. Make sure that the outlet of the
trap is at least 1 in. lower than the unit drain-pan condensate
connection to prevent the pan from overflowing. Connect a drain
trough using a minimum of field-supplied 3/4-in. PVC or field-
supplied 3/4-in. copper pipe at outlet end of the 2-in. trap. (See Fig.
12) Do not undersize the tube. Pitch the drain trough downward at
a slope of at least 1 in. every 10 ft. of horizontal run. Be sure to
check the drain trough for leaks. Prime the trap at the beginning of
the cooling season start-up.
Step 7—Install Electrical Connections
The unit cabinet must have an uninterrupted, unbroken
electrical ground to minimize the possibility of personal
injury if an electrical fault should occur. This ground may
consist of an electrical wire connected to the unit ground lug
in the control compartment, or conduit approved for electrical
ground when installed in accordance with NEC, ANSI/NFPA
American National Standards Institute/National Fire Protec-
tion Association (latest edition) (in Canada, Canadian Elec-
trical Code CSA C22.1) and local electrical codes. Failure to
adhere to this warning could result in serious injury or death.
Failure to follow these precautions could result in damage to
the unit being installed:
1. Make all electrical connections in accordance with NEC
ANSI/NFPA (latest edition) and local electrical codes
governing such wiring. In Canada, all electrical connec-
tions must be in accordance with CSA standard C22.1
Canadian Electrical Code Part 1 and applicable local
codes. Refer to unit wiring diagram.
2. Use only copper conductor for connections between
field-supplied electrical disconnect switch and unit. DO
NOT USE ALUMINUM WIRE.
3. Be sure that high-voltage power to unit is within operating
voltage range indicated on unit rating plate. On 3-phase
units, ensure phases are balanced within 2 percent. Consult
local power company for correction of improper voltage
and/or phase imbalance.
4. Insulate low-voltage wires for highest voltage contained
within conduit when low-voltage control wires are in same
conduit as high-voltage wires.
5. Do not damage internal components when drilling through
any panel to mount electrical hardware, conduit, etc.
HIGH-VOLTAGE CONNECTIONS
The unit must have a separate electrical service with a field-
supplied, waterproof disconnect switch mounted at, or within sight
from the unit. Refer to the unit rating plate, NEC and local codes
Fig. 9—Suggested Rigging
UNIT MAXIMUM SHIPPING WEIGHT A B
Size lb kg in. mm. in. mm.
50XZ024 372 169 19.0 482.6 18.25 463.6
50XZ030
Not
Yet
Available
“ ““““
50XZ036 395 179 20.0 508 19.0 482.6
50XZ042
Not
Yet
Available
“ ““““
50XZ048 485 220 20.0 508 21.25 539.8
50XZ060 521 236 21.0 533.4 20.0 508.0
C99075
PLACE RIGGING BRACKET ASSEMBLY IN 4
RIGGING HOLES AND INSTALL TIE DOWN STRAP
AROUND PERIMETER OF UNIT AND THROUGH
SPACE IN BRACKET ASSEMBLY
INSTALL SAFETY STRAPS TO
RIGGING CLEVIS AT 4 RIGGING BRACKETS
TIGHTEN STRAPPING SECURELY
WITH TENSION BUCKLE
SEE DETAIL A
DETAIL A
SCALE 0.250
914-137"
(36"-54")
“A”
“B”
8
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