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12
FIGURE 6
VERTICAL DOWNFLOW & HORIZONTAL RIGHT APPLICATIONS
RAILS
RAILS
FIGURE 7
INDOOR COIL AND DRAIN PAN SET-UP
HORIZONTAL ADAPTER
VAPOR LINE
CONNECTION
AUXILIARY
HORIZONTAL
CONNECTION
PRIMARY
CONNECTION
UPFLOW/DOWNFLOW
CAUTION
Horizontal units must be configured for right hand air supply or left hand air
supply. Horizontal drain pan must be located under indoor coil. Failure to use
the drain pan can result in property damage.
Conversion in Horizontal Direction: Horizontal left-hand supply can be changed to hori-
zontal right-hand supply by removing the indoor coil and reinstalling 180° from original.
(See Figure 5.)
3.3 INSTALLATION IN AN UNCONDITIONED SPACE
The exterior cabinet of an air handler has a greater risk of sweating when installed in an
unconditioned space than when it is installed in the conditioned space. This is primarily
DETAIL A
ENSURE THE RETAIN-
ING CHANNEL IS FULLY
ENGAGED WITH THE
COIL RAIL.
STRAPS
KIT
DRAIN
DRAIN
AUXILIARY
LIQUID LINE
DRAIN CONNECTION
CONNECTION
ST-A1213-02
TOP AIR STOP
VERTICAL
DRAIN PAN
ST-A1213-01
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