18585-UAI-C-0708
2
Johnson Controls Unitary Products
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9.
Reinstall furnace blower by reconnecting motor wires to
motor and capacitor, then secure wires with wire strap and
wire clamp, as originally installed. (Refer to Figure 1 & 2).
10. Secure blower with screws previously removed.
INSTALLATION OF COIL SUPPORT
Place coil support in casing with coil support flange up. Be sure
to note that there are two sets of pre-punched holes in casing
sides. Use upper set of holes for mounting coil shelf. Secure
coil shelf to casing sides with screws provided. See Figure 4.
Holes in the back of the coil shelf are optional.
If our “Standard” or “Deluxe” Blend Air Control box is mounted
on the blower, follow the blend air instructions below:
Furnaces manufactured before July 2000
- thermostat wire
hole on the side of the casing may have to be moved back to
clear the coil shelf panels.
Blend Air Instructions
If our “Standard” or “Deluxe” Blend Air systems are installed on
this furnace then you should have a Blend Air Control Box
mounted on the furnace blower. See Figure 2.
Disconnect the thermostat wires, remove the control box from
the blower and install it on the right coil shelf panel using the
same screws. Pierce a small hole through the bushing in the
insulation of the coil shelf panel to route the thermostat wires.
See Figure 3. Reconnect the wiring of thermostat wires in the
blower compartment. Proceed with the coil shelf panel installa-
tion.
Coil Shelf Panel Installation
Loosen the screws on the two EB electric control box panels in
the furnace. See Figure 6. Place the slotted ends of the two coil
shelf panels (provided) on the loosened screws behind the con-
trol box panels. See Figure 6. Line up the holes in the coil shelf
panels with the holes in the coil shelf and secure with the
screws provided. See Figure 4 & 5. Make sure that the insu-
lated sides of the panels are towards the blower compartment.
The A/C evaporator coil or indoor heat pump coil can now be
installed according to the instructions packed with the coil.
If electric furnace is EB**A or 3500 series then select the appli-
cable A/C or heat pump control package. Install it in the furnace
per the instructions furnished with the control package.
FIGURE 2
INSULATION TABS
(FOLDED OVER)
INSULATION
(BACK & SIDES)
MOUNTING
SCREWS x5
BREAKERS
(DISCONNECT
BLOCK ON
3500 SERIES)
EB ELECTRIC
CONTROL BOX
PANELS
BLEND AIR
CONTROL BOX
FIGURE 3
FIGURE 4
BLEND AIR
CONTROL BOX
EB ELECTRIC
CONTROL BOX
PANELS
EB COIL
SHELF PANELS