2
Installation Instructions
STEP 1
Prepare Installation Area by Removing AZ75/AZ85 Unit
WARNING
Risk of Electrical Shock, can cause injury or death. Before servicing,
switch power off at the service panel and lock the area to prevent power
from being switched on accidentally.
To remove the AZ75/AZ85 series unit:
1.
Disconnect the power coming into the unit from the main breaker or
closet mounted disconnect.
2.
Remove the front case panel.
3.
Unplug the 9-pin yellow connector and disconnect the wall thermostat
connection.
4.
Fully loosen the 4 adjustable screws on the top cover and disconnect
the top duct work from the unit.
5.
Remove the front and or side case-to-unit grounding screws, if present.
6.
Slide the unit out of the case.
7.
Disconnect all of the drains.
8.
Remove the bolts holding the case to the platform (if present).
9.
Remove the 6 screws securing the case to the plenum.
10.
Remove the case.
11.
Remove the platform, if needed.
Inside
Wall
Rigid
Ductwork
Access
Panel or
Closet Door
Existing
Wall Plenum
When complete the closet area
should look like this.
STEP 2
Install and Connect the Transition Plenum to the Existing Wall Plenum
NOTE: The Drain pan must be installed into the transition plenum prior to screwing the transition plenum to the
existing wall plenum.
1.
Before mounting the transitional plenum, install a piece of precut insulation to the bottom of the transitional plenum.
Insulation should be installed flush with the front side of the transitional plenum and overhang slightly on the other
side.
2.
Align drain pan outlet with the cutout in the bottom of the transition plenum. Drop drain pan into place.
3.
Place the transitional plenum in front of the existing wall plenum with the flange side facing away from the wall
plenum.
4.
Align the transitional plenum mounting holes to the mounting holes on the existing wall plenum. The top of the
transitional plenum should be even with the top of the existing wall plenum.
5.
Attach the transitional plenum to the wall plenum with the 6 supplied screws.
6.
Install the 3 remaining pieces of insulation to the top and sides of the transitional plenum.
Align
Mounting
Holes
Align Front
Edges
Drain Pan
Outlet
Inside
Wall
Rigid
Ductwork
Flush with
top of
existing
wall plenum
Flange
Insulation
Overlap
Drain Pan
