5156631-UIM-G-0417
Johnson Controls Unitary Products
9
SECTION VII: ELECTRICAL
CONNECTIONS
GENERAL INFORMATION & GROUNDING
The control box cover is held in place with 4 screws (one screw near
each lower corner and one screw near each upper corner).
Check the electrical supply to be sure that it meets the values specified
on the unit nameplate and wiring label.
Power wiring, control (low voltage) wiring, disconnect switches and over
current protection must be supplied by the installer. Wire size should be
sized per NEC requirements.
The control box can then swing open from the left by rotating on the
right side pivots for easy service of refrigeration components. If no wir-
ing is in or routed through the control box, it can be removed from the
unit by lifting slightly, tilting the top hinge out, and lifting the bottom
hinge out. During the installation, it is recommended to route the low
voltage wiring for the thermostat along the unit whip to help facilitate the
swing away feature of the control box. Refer to Figure 11.
Check the electrical supply to be sure that it meets the values specified
on the unit nameplate and wiring label.
Power wiring, control (low voltage) wiring, disconnect switches and over
current protection must be supplied by the installer. Wire size should be
sized per NEC requirements.
The complete connection diagram and schematic wiring label is located
on the inside surface of the unit service access panel.
FIGURE 10:
Jumper Location for Charging Mode and Normal Operation Mode
A
0549-001
N
ORMA
L
OPERAT
I
O
N
MODE
- J
UMPER
O
N
“N”
POS
I
T
I
O
N
CHAR
GING
MODE
-
J
UMPER
O
N “
H
”
POS
I
T
I
O
N
NOTICE
A flexible electrical whip must be installed in order to use the swing
away function of the control box. Other type electrical whips require
the wiring to be disconnected in order to swing the control box open.
FIGURE 11:
Outdoor Unit Swing Away Control Box
CAUTION
All field wiring must USE COPPER CONDUCTORS ONLY and be in
accordance with Local, National, Fire, Safety & Electrical Codes. This
unit must be grounded with a separate ground wire in accordance
with the above codes.
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