WARNING: Do not permit overhanging structures or shrubs to obstruct air discharge.
Additional height may be required for snow clearance if winter operation is expected.
The return air duct flange is
A supply air plenum (Fig. 4), a base (Fig. 5) and a return air grille (Fig. 6) are available as
FIG. 2 - VERTICAL AND HORIZONTAL APPLICATIONS
VERTICAL / HORIZONTAL INSTALLATION
These indoor units are shipped for vertical installation with ver- tical air discharge as shown in Figure 2(A) but may be con- verted for horizontal installation as shown in Figure 2(B) by interchanging the solid bottom panel and the return air duct flange.
DUCT CONNECTIONS
Design and install all ducts in accordance with all national and/or local codes.
Ducts should be sized no smaller than the duct flanges on the unit or the electric heater (if used). Refer to the unit dimensions (Fig. 12) and the heater detail (Fig. 3) for these sizes. Refer to Form
Use flexible fiber glass or plastic cloth collars or other nonflam- mable material at the unit duct connections to minimize the transmission of noise and vibration.
Insulate all ductwork running through unconditioned areas to prevent moisture condensation and to provide more economi- cal operation.
FIG. 3 - ELECTRIC HEATER ACCESSORY (Vertical Arrangement Shown)
Plenumshouldbefieldmountedhorizontalthesupplyairendofindoor unitsforeitherverticalor application.Forreardischarge,
FIG. 4 - SUPPLY AIR PLENUM ACCESSORY
(Vertical Arrangement Shown)
FIG. 5 - BASE ACCESSORY
(For Vertical Arrangement Shown)
Unitary Products Group | 5 |
