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4.
Determine which of the four positions the duct connector best cen-
ters over the supply duct and insert it through the floor cutout.
5.
Mark cut-out location on the supply duct and remove the duct con-
nector.
6.
Cut out the opening to the supply duct.
7.
Bend tabs down through and back up under the supply duct.
8.
Secure the duct connector to the floor with nails, flat head screws
or staples.
The duct connector is designed for use on ducts down to 12" in width.
When using the connector on smaller width ducts, there will not be suffi-
cient clearance to bend the tabs on two sides of the duct connector.
In such cases the tabs may be attached to the sides of the duct by
using sheet metal screws or other suitable fasteners. Holes for sheet
metal screws are provided in three (3) tabs on each side of the duct
connector. If more than 3 tabs need to be used to provide a more
secure and air tight connection, the remaining tabs can also be fas-
tened to the duct with screws after drilling the required screw holes.
PARALLEL DUCT SYSTEM
The EB Duct Connector Insert 37323716001 may be used on EB
Series Electric Furnaces where the duct system runs parallel to the fur-
nace. See Figure 8. The EB Duct Connector Insert should not be used if
the duct system runs perpendicular to the furnace or if the duct system
extends only one direction from the furnace.
The Duct Connector Insert cannot be used with 1" and 2" Duct Connec-
tors (7990-6011, 7990-6021, 7990-6211, and 7990-6221).
Follow Accessory Kit Installation Instruction 035-20632-001 provided
with the Duct Connector Insert.
FURNACE DOOR
PERPENDICULAR LAYOUT
FIGURE 8: Duct System Configuration
Furnace Seated
Against the
Locator Bracket
FIGURE 9: Installation of Furnace
Johnson Controls Unitary Products
FURNACE DOOR
PARALLEL LAYOUT
Secure Furnace
to Floor with Two
Nails or Screws
INSTALLATION OF THE FURNACE
1.
Remove the front panels and set the furnace onto the duct con-
nector. Slide it back until the rear of the unit engages the locator
bracket.
2.
Secure the front of the furnace with two screws at the mounting
holes provided. See Figure 9.
3.
Secure the top of the furnace to a structural member using screw
through the strap at the top of the furnace. Strap may be moved to
any of the holes located along the top back of the furnace. Installer
may provide an equivalent method, such as screws through the
casing side.
FURNACE CONVERSION TO UPFLOW
APPLICATION
Upflow furnace conversion is easily accomplished by following the
steps listed below:
Provide adequate clearance for servicing:
1.
Before Conversion, locate the furnace conveniently away from
wall facing or partitions to permit easy removal and installation of
components.
2.
Two (2) feet of space must be available in front of furnace for
future servicing (blower or element removal, furnace removal,
etc.).
3500-5451* Adapter Box and/or 3500-7211* Upflow Flange Plate Kit
are needed prior to following steps below:
1.
Assemble the 3500-5451 filter box per instructions provided with
kit.
2.
Remove furnace panel.
3.
Remove air filter.
4.
Remove strap on the top of the unit, saving the screw and strap for
later use.
5.
Turn entire unit upside-down, so the filter box is on the floor.
6.
Remove two (2) screws that are on the front of the unit at the top.
Obtain front panel hanger angle from the upflow kit 3500-7211*.
Secure the hanger angle with two (2) screws removed from the
furnace casing See Figure 10.
Hanger Angle
Screw x 2
FIGURE 10: Hanger Angle Attachment
7.
Attach the strap that was removed in Step 4 to the top, side or
back of the furnace.
8.
Install the duct flange plate on top of the inverted furnace as
shown in Figure 11.
9.
If installing a POS, Standard or Deluxe Air Systems, proceed to
Step 10.
Optional start collar for the Economy POS system shipped with
3500-7211* can be used for blend air flex duct installation. Punch
the lineset knockout out and position the start collar over it. Duct
connector edge can be pushed under the casing flange and
screws provided can be used to capture the other end of duct con-
nector. Secure collar to top of furnace.
266180-BIM-B-0209
Casing
5
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