York K5EU090A50A, K4EU120A50A Clearances, Rigging And Handling, Vertical/Horizontal Installation

550.39-N4YI

CLEARANCES

The clearances listed on the unit dimension drawing (Figure 9) are required for the proper service and opera- tion of the unit.

RIGGING AND HANDLING

Be careful when moving the unit. Do not remove any packaging until the unit is near its final location.

The packaging consists of a bottom wooden skid that can be lifted with a fork truck from any direction, a card- board container that covers the entire unit, and strapping that secures the cardboard container to the bottom of the skid.

These units can be rigged with slings under the bottom skid.

CAUTION: Spreader bars should be used to prevent slings from crushing the unit panels and frame.

Before rigging any unit, determine its weight from Ta- ble 2. Before rigging a unit for horizontal installation, make sure that its weight will be distributed equally.

VERTICAL/HORIZONTAL INSTALLATION

The unit is shipped for vertical installation with a vertical air discharge as shown in Figure 2, but may be converted for horizontal installation as shown in Figure 2 by inter- changing the solid bottom panel and the return air duct flange.

DUCT CONNECTIONS

All ducts should be designed and installed in accordance with applicable national and/or local codes.

Refer to Figure 3 for suggested method of connecting supply air ductwork.

FIG. 3 - SUPPLY AIR DUCT CONNECTION

Ducts should be sized no smaller than the duct flanges on the unit or the accessory electric heater (if used). Ref- er to the unit dimensions (Figure 1) and the heater detail (Figure 4) for these sizes.

Use flexible fiber glass or plastic cloth collars or other non-flammable material at the unit duct connections to minimize the transmission of noise and vibration.

Insulate all ductwork running through unconditioned ar- eas to prevent moisture condensation and to provide more economical operation.

The return air duct flange is factory-mounted on the front of the unit, but it can be reversed with the solid bottom panel for hori- zontal applications. When the return air grille is used, the duct connection frame is not used.

NOTE: If return air duct is not used, applicable lnstalltion codes may limit the unit to installation only in a single story residence.

The field installed air plenum and return air grille accessories should be used in place of ductwork only when a free blow/free return application is practical.

(25)

(489)

(565)

FIG. 2 - VERTICAL AND HORIZONTAL APPLICATION FIG. 4 - ELECTRIC HEATER ACCESSORY

4 Unitary Products Group