Quick Start Manual

10
Installation, Operation & Maintenance WDG AIR HANDLER SERIES Heat Controller, LLC
Applications
Air Handlers can be applied in upfl ow, downfl ow, horizontal
right and horizontal left applications without modifi cations. For
horizontal applications, installation of an auxiliary/secondary
drain pan is required.
 CAUTION! 
CAUTION! For horizontal applications, the horizontal drain pan
must be located under the indoor coil. Failure to place the pan
under the coil can result in property damage.
Installation
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TOP
DISCHARGE
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1” to 2” Filter Rack Conversion
The unit is shipped with1” fi lter rack from the factory. The conversion
process is assumed that the unit is in upfl ow confi guration.
1. Place unit on a fl at surface. Remove 2 knurled thumb knobs that
secure the fi lter rack door at the bottom of the unit.
2. Remove 3 screws that secure the lower fi lter tracks on each side
of the unit.
3. Lift and rotate the fi lter tracks upside down and reinstall fi lter
tracks and screws back.
4. Replace the fi lter rack door and the 2 knurled thumb knobs.
LEFT
DISCHARGE
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'L
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RIGHT
DISCHARGE
BOTTOM
DISCHARGE
5
'LV
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