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INSTALLATION-ELECTRICAL
Provide strain relief where field wiring passes
through cabinet. Wiring within the cabinet has
been positively located and supported so that it
does not pass over sharp metal edges or come in
contact with moving parts. After servicing, position
wiring properly in the original supports.
All field-installed wiring, including the electrical
ground, MUST comply with the National Electrical
Code (NEC) as well as applicable local codes. In
addition, all field wiring must conform to the Class
II temperature limitations described in the NEC.
Refer to factory wiring diagrams installed in the
unit. Use the MCA and MOPD from the nameplate
or electric heat nameplate or Electrical Ratings
(page 30) to size power supply wiring and overcur-
rent protection device. Installation must comply
with NEC and local codes.
For communicating controls, refer to electrical spe-
cific instructions, page 33-41. Refer to the con-
densing unit operation manual for more details.
COMM WIR-
ING IN
THROUGH
CABINET
SIDE, INTO
CONTROL
BOX
COMM
WIRING
OUT TO
TERMINAL
STRIP
Figure 9c
Communications Wiring
035-000051-001
WARNING: Hazardous voltage. Only qualified
personnel must install the electrical service. Dis-
connect and Lock Out all incoming power sources
before connecting to electrical service.
WARNING: This appliance must be permanently
grounded in accordance with the National Electrical
Code and local code requirements.
WARNING: For use with copper conductors only.
Loose wiring may cause the terminal to overheat
or result in unit malfunction or cause a fire hazard.
Insure that all wiring is tightly connected!
FIELD POWER
WIRES IN
THROUGH
CABINET SIDE
FIELD POWER
WIRES IN
THROUGH
CABINET SIDE
Unit with Electric Heat
Page 18 of 60
DANGER
CAUTION
EARTH
GROUND
WIRE
POWER
TERMINALS
Figure 9a
Unit without
Electric Heat
POWER
SWITCH
Figure 9b
MMD IOM 1.2 11-10-2020
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