6052931-UAI-A-0121
Johnson Controls Ducted Systems
7
Line power connections
Power can be brought into the air handler through the outlet air
end of the unit (top left when the unit is vertical) or the left-side
panel. For the residential packaged unit, power can be brought
into the electric/controls area through the power supply provi-
sions in the bottom or right side of the unit. To minimize air leak-
age for any unit, seal the field wiring entry point.
Field wiring connects to electric heat kits with service discon-
nect or terminal block depending on the electric heat kit model.
The multiple circuit, single-phase electric heat kits have options
for a single power supply. For the 3 phase 20 kW and 25 kW
electric heat kits with multiple circuits, a single-point power
accessory kit can be ordered separately. A ground lug is pro-
vided on the kits. Refer to the unit installation instructions for
electrical specifications. See Figure 6 and Figure 7.
Figure 6:
Electric heat kit connection
FACTORY WIRING
Attached to this side -
no need for removal.
TERMINAL BLOCK OR
SERVICE DISCONNECTS
May have 1, 2, or 3 service disconnects.
FIELD SUPPLIED WIRING
Attaches to left side.
A0241-001
Figure 7:
Air handler and residential packaged unit electric heat power
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