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5407934-UIM-C-1119
Thermostat Wiring
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury, death, or
equipment damage. Before installing, modifying, or servicing the sys-
tem, the main electrical disconnect switch must be in the OFF posi-
tion. There may be more than one disconnect switch. Lock out and tag
each switch with a suitable warning label.
1. Turn off all power to the equipment.
2. Remove the thermostat front plate.
3. Match and connect the thermostat wires to the proper terminals on
the thermostat mounting back plate.
4. Push any excess wiring back into the wall.
Plugging the hole in the wall with nonflammable insulation can help
prevent drafts from adversely affecting temperature control.
Outdoor Control Wiring
Figure 7 shows a communicating AC control (see top of figure) and a
communicating heat pump control (see bottom of figure). The communi-
cating terminals shown are in parallel. Connect to either terminal.
Johnson Controls Ducted Systems
WARNING
!
NOTICE
11
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