11
Zone 2 is wired in by jumpering from Sig 1, Sig 2, B- and R+
on Zone 1 box to Zone 2 box. Zone 3 is wired in by
jumpering from Sig 1, Sig 2, B- and R+ on Zone 2 box to
Zone 3 box. Zone 4 is wired in by jumpering from Sig 1, Sig
2, B- and R+ on Zone 3 box to Zone 4 box (See Figure 5).
Connect the roof unit 115 volt electrical conduit to the
wirebox 9 pin receptacle and verify that the plugs are properly
aligned and have snapped together securely.
Position the control box over the screws and use the wing nuts
to fasten the control box to the upper unit enclosure. For
47000 series units, refer to Figure 9 on page 13. Note that the
box is installed with the wiring exiting upwards.
Insert the evaporator freeze sensor between evaporator fins
near the bottom center of the evaporator and between the
bottom two tubes (See Figure 2). Insert straight in until
contacting the staggered tube directly in back of the insertion
point. When contact has been made, elevate the exposed end
of the sensor approximately 45 degrees, then continue
insertion at a 45 degree angle until the sensor is completely
embedded into the evaporator.
Complying with the warnings listed below, connect the 115
VAC supply wiring to its power source. Be sure all power
remains off until beginning checkout procedure.
DANGER
TO PREVENT THE POSSIBILITY OF
SHOCK INJURY FROM APPLIANCE
OPERATION:
THE WHITE WIRE MUST BE
CONNECTED TO NEUTRAL IN THE
SERVICE BOX ENTRANCE AND THE
MECHANICAL GROUND MUST BE
CONNECTED TO A GROUNDING
LUG IN THE SERVICE BOX OR THE
MOTOR GENERATOR
COMPARTMENT.
15. INSTALLING THE HEATER ASSEMBLY
NOTE
The optional Electric Heating Element is intended to take the
chill out of the indoor air when the air is a few degrees too
cool for comfort. The Electric Heating Element is an effective
“chill chaser”.
It is not a substitute for a furnace.
A.
If adding the electric heater to 48000 and 49000
series units, position the assembly in the upper unit
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.
47000 series units will mount as shown in Figure 10
(see page 13) using wing nuts.
FIGURE 6
B.
Insert the two-pin connector of the heater umbilical
into the receptacle on the control box. Insure that the
connector snap-locks into position.
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.
FIGURE 7
Summary of Contents for 8330-752
Page 10: ...10 FIGURE 5 ...
Page 13: ...13 FIGURE 9 FIGURE 10 Ş ...
