13
HORIZONTAL UNITS
1. Position the unit to minimize long runs of duct or runs of
duct with many turns and elbows.
2. Unit can be mounted left or right side airflow configuration.
3. Position the unit on adequate supports or by using support
brackets (see Figure 8) and connect supply plenum.
4. If summer air conditioning is desired, position the indoor coil on
the supply air side of the unit. Insure that no air can bypass
this coil.
5. Secure the four angle brackets to the return air opening. See
Figure 9. Connect the return air ducting to the return air open-
ing at the top of the unit. Make the connection air tight to pre-
vent entraining combustion gases from an adjacent
fuel-burning appliance.
NOTE: Do not block furnace access with support rods. Main-
tain clearances recommended in Figure 8. Allow enough
space for proper service maintenance or replacement of the
heat exchanger and blower assembly.
DUCTING
FOUR ANGLE BRACKETS CAN BE INSTALLED HORIZONTALLY.
THESE BRACKETS MAY BE USED TO SECURE THE RETURN AIR
DUCT TO A HORIZONTAL UNIT.
RETURN
AIRFLOW
REAR VIEW
FIGURE 9
HORIZONTAL RETURN AIR DUCT
(LEFT-HAND AIRFLOW POSITION SHOWN)
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