Airxcel 48 Série Instructions D'installation page 8

If the heater option is installed at this time, position
the heater assembly in the air conditioner return air
opening as shown in Figure 6. The heater bracket
must be installed over the metal basepan extrusion
and positioned between the basepan and the plastic
drain pan (See Figure 7). Tighten set screw to
secure the assembly so as to prevent movement.
Plug the heater cord into the 2 position receptacle
(See Figure 8).
TIE ALL WIRING TO INSURE NO CONTACT
WITH THE HEATER OR ANY SHARP EDGES.
KEEP IN MIND THAT HIGH VELOCITY AIR
WILL BE ENCOUNTERED IN THIS AREA.
D. Fasten the duct collar to the basepan of the air
conditioner with three (3) screws (See Figure 10).
E. Plug the roof top air conditioner electrical conduit
into the 9 position receptacle located in the
thermostat side of the ceiling assembly.
F. Insert the supply wiring through the cable clamp and
into the field wiring box so that 4 - 6" of supply
conductor is inside the box. Secure the cable clamp
over the supply wire sheath so that no movement is
possible (See Figure 9).
G. Connect the supply power conductors to the black
and white pigtail wires and the supply ground wire to
the green pigtail wire found in the field wiring box
using the 3 provided wire nuts. IMPORTANT –
Connect the black supply to the black pigtail and the
white supply to the white pigtail. Using a U.L.
approved electrical tape, secure the wire nuts to wires
in a workmanlike manner (See Figure 9).
H. Place the metal control box shield over the thermostat,
switch and field wiring boxes. Make certain that all
wires are pushed into the control boxes or laying in
the wireway between the thermostat and switch
boxes and will not be pinched by the control box
shield. Control box shield is properly installed when
the two holes in the shield are aligned with the two
screw holes in the ceiling assembly chute (See Figure
8).
I. Raise the ceiling assembly and secure to the mounting
frame with 4 provided shoulder screw/spring
assemblies. The front two screws should pass
through the clearance holes in the metal control box
shield (See Figure 10).
J. The ceiling assembly shroud is curved to contour to a
crowned ceiling. If installation is to a flat ceiling and
gaps are present on the sides of the shroud, insert the
four optional 3/4 inch screws (provided) through the
mounting posts and secure them to the mounting
frame above (See Figure 8, 9 & 10 for screw
locations).
K. Pull the fabric duct material through ceiling assembly
discharge opening. Peel the release liner from the
adhesive strip around the discharge opening. Press
the fabric duct material firmly in place around
opening. Cut off excess fabric on inside of ceiling
assembly chute with a box knife taking care not to
tear the fabric beyond the adhesive strip.
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FIGURE 6
FIGURE 7