4
INSTALLER’S GUIDE
Return Air Damper
1.) Swing
Down
Return Air
Damper
Economizer
2.) Insert Assembly
Screw
Figure 5. Swing Down and Set Economizer Return Damper
Figure 4. Insert Economizer in Shipping Position
4WCZ6, 4YCZ6, or 4DCZ6 Unit
Dry bulb outside air
temperature sensor
Economizer
actuator and
Logic Module
Insert economizer
in folded shipping
position
