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Control Wiring
1. Route the gray wire from the power exhaust assembly
through the partition panel and into the main control box.
Connect the gray wire to the yellow wire from PL-1. (See
Fig. 9.)
2. Remove screw from return air base rail halfway
between power exhaust and economizer motor. Install
wire tie under screw and secure gray wire to return-air
base rail.
LEGEND
EMC — Exhaust Motor Contactor
Fig. 9 — Control Wiring Connection Diagram
Fig. 11 — Typical Unit Wiring Schematic
6
3. Insert snap bushing (provided) into
bottom of low-voltage control box. Route brown wire
through partition panel snap bushing and into low-
voltage control box. Connect brown wire to terminal C
on low-voltage terminal strip (see Fig. 9).
4. Replace access panels and return power to unit.
Figure 10 shows the unit with accessory power exhaust
package installed. Figure 11 shows a typical unit wiring sche-
matic with power exhaust wiring.
Fig. 10 — Accessory Power Exhaust Package
Installed on Base Unit
C
— Contactor
CAP — Capacitor
EMC — Exhaust Motor Contactor
EFM — Exhaust Fan Motor
FU
— Fuse
IFC
— Indoor Fan Contactor
QT
— Quadruple Terminal
TB
— Terminal Block
NOTES: Fan motor thermally protected.
5
/
-in. knockout in
8
LEGEND
Terminal (Unmarked)
Terminal (Marked)
Terminal Block Connection
Splice
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