9
Tranquility
®
Digital Air Handler (TAH)
Rev.: 11 Feb., 2013
Horizontal Left Installation
1. For maximum effi ciency and customer ease of fi lter
maintenance, it is recommended that a properly sized
remote fi lter grille be installed for horizontal applications.
Airfl ow should not exceed the face velocity of the fi lter being
used. The factory installed fi lter should then be removed
from the unit.
2. Unit is shipped from the factory in the upfl ow or horizontal
left confi guration. Unit conversion is not required.
Conversion is required: Rotate motor to ensure connection
at the 4 to 8 o’clock position.
3. If the unit is suspended, it must be supported from the
bottom near both ends as well as the middle to prevent
sagging. The service access must remain unobstructed. If
the unit is supported along the length of the front and back,
the air handler only needs to be suspended at both ends.
See Figure 1.
4. If the unit is not suspended it must be supported as
mentioned above and isolated carefully to prevent sound
transmission. Vibration isolators (purchased locally) must
be placed under the unit.
5. It is always recommended that an auxiliary drain pan be
installed under a horizontal air handler (See Condensate
Drain Piping) to prevent possible damage to ceilings.
6. Isolate the auxiliary drain pan from the unit or from the
structure.
7. Connect the auxiliary drain line to a separate drain line
(no trap is needed in this line) and terminate according to
national and local codes.
8. If a return duct is connected to the air handler, it must be
the same dimensions as the return opening shown in the
outline drawing on Figure 2.
9. Openings where fi eld wiring enters the cabinet must be
completely sealed. Location of power entry is shown on
the outline drawing.
10. After ductwork connections are made, seal airtight and per
local codes.
Duct Connections
The supply and return air ducts should be connected to the
unit with fl ame retardant duct connectors.
NOTE: No sheetmetal screws may be used to
attach return ductwork on the side.
NOTE: Any duct board return connection can be
made to the sides of the unit using tape or mastic.
Installation
Rail
Auxiliary
Drain Pan
Tranquility
EarthPu
re
®
27
Tranquility
EarthPure
®
27
Tranquility
EarthPure
®
27
Figure 1: Mounting Installation Options
Figure 2: Flange Attachment
Tranquility
EarthPure
®
27
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