262675-UIM-A-0806

Up Flow

Down Flow

Horizontal Right

Horizontal Left

FIGURE 1: Typical Installation with MC or FC Evaporator Coil

DOWNFLOW AND HORIZONTAL CONVERSION

These air handler units are supplied ready to be installed in a upflow, downflow and left or right hand horizontal position.

If the unit is to be installed with an evaporator coil, refer to Figure 1 for unit positioning information.

TIE PLATE

AIR HANDLER

COIL

COIL

TOP PLATE

UPFLOW & HORIZONTAL

APPLICATIONS

DOWNFLOW

APPLICATION

AIR HANDLER

FIGURE 2: Coil and Air Handler Attachment Details

AIR HANDLER AND COIL UPFLOW AND HORIZONTAL INSTRUCTIONS

1.Apply neoprene gasket to top of coil.

2.Position blower casing over coil opening. NOTE: Tie plate and screws are provided with coils.

3.Attach tie plate to casings of air handler and coil using screws.

4.Remove blower access panel.

5.Fasten duct flanges of coil to duct flanges of air handler with screws. See Figure 2.

6.Secure base of air handler to top of coil using screws.

7.Complete electrical and blower speed connections as outlined in other sections of this document.

8.Reposition and replace blower access panel.

AIR HANDLER AND COIL DOWNFLOW

INSTRUCTIONS

1.Position blower casing over duct connection and secure such that the supply air end of the blower is down.

2.Apply neoprene gasket to return-air side of air handler.

3.Place coil casing over blower return opening.

NOTE: Tie plate and screws are provided with coils.

4.Attach tie plate to casings of air handler and coil using screws.

5.Remove blower access panel and coil filter door.

6.Fasten duct flanges of coil to base of air handler with screws. See Figure 2.

7.Secure base of air handler to base of coil using screws.

8.Complete electrical and blower speed connections as outlined in other sections of this document.

9.Reposition and replace blower access panel.

Blowers with an electric heater kit may require a non-combustible floor base if installing on a combustible floor. See instructions for 1FB1817, 1FB1821, & 1FB1824, and local codes.

Unitary Products Group

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York MA installation manual Downflow and Horizontal Conversion, AIR Handler and Coil Upflow and Horizontal Instructions
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MA specifications

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