Final Inspection & Start-up
Before operating the unit
Read and understand the contents of this manual.
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Install the unit per the instructions outlined in this manual and
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all applicable local and national codes.
Ensure the electrical supply matches the electrical requirements
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of the unit, and that the unit is properly grounded.
Examine control box. Ensure all wire connections are secure,
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and that control board jumpers are in the proper positions. See
“” on page 27.
Verify that the chassis is properly fitted to the wall sleeve and
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securely mounted to the surrounding framing.
Make sure the chassis is level:
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Pour water into the drain pan.
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Make certain it flows through the drain hoses to the condenser
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side of the unit.
Verify that indoor blower wheels and outdoor fan blades are
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secured to their motor shafts, and rotate freely.
Ensure all sheet metal panels are in place and secure.
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Attach the front panel to the existing cabinet enclosure.
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Verify that nothing will interfere with the room discharge air or
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the return air of the units. Examples:
Check for curtains or drapes that obstruct the air flow.
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See
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Figure 32 and Figure 33.
Check for plush carpeting that can obstruct the return air.
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Items like these can cause serious damage to the chassis.
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CAUTION
Any obstruction of supply air, including the use of deflector
baffles, may cause condensate to form on the louver or cabinet
(see Figure 32).
Proper air flow diagram
Figure 32
To ensure optimum performance of your PTAC/PTHP, avoid
restricting the air flow. The position of curtains or drapes over
supply air grille may cause air to recirculate without cooling
the room. The unit will short cycle and may cause premature
compressor failure (see Figure 33).
Restricted air flow diagram
Figure 33
Replacement Packaged Terminal Air-Conditioning / Heat Pump
• Installation, Operation, and Maintenance Manual •
The Right Fit for Comfort
26
P/N 240008034, Rev. D [7/29/2011]
