Figure 11: Outdoor unit swing away control box
Check the electrical supply to ensure 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 must be sized following NEC
requirements.
CAUTION
All field wiring must only use copper conductors and
be in accordance with Local, National, Fire, Safety
and Electrical Codes. This unit must be grounded with
a separate ground wire in accordance with the above
codes.
The complete connection diagram and schematic wiring
label is located on the inside surface of the unit service
access panel.
Field connections power wiring
1. Install the correct size weatherproof disconnect
switch outdoors and within sight of the unit.
2. Remove the screws at the top and sides of the
corner cover. Slide the control box cover down and
remove from unit.
3. Run power wiring from the disconnect switch to the
unit.
4. Route wires from disconnect through power wiring
exit provided and into the unit control box as
shown in Figure 11, Figure 12, and Figure 13.
5. Install the correct size time-delay fuses or circuit
breaker, and make the power supply connections.
Figure 12: Outdoor unit control box (single phase -
smaller base)
Figure 13: Outdoor unit control box (single phase -
larger base)
Field connections control wiring
1. Route low voltage wiring into bottom of control
box as shown in Figure 12 or Figure 13. Make low
voltage wiring connections inside the low voltage
box as shown in Figure 14.
2. The complete connection diagram and schematic
wiring label is located on the inside surface of the
unit service access panel.
3. Replace the control box cover removed in Step 2 of
the Field connections power wiring procedures.
4. All field wiring to be in accordance with national
electrical codes (NEC) or local city codes.
R-410A Outdoor Split-System Air Conditioning 17
Johnson Controls Ducted Systems
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