Permanent Connection, For 230/208V Units, Preparation

US STW PTAC 8/8/01 5:34 PM Page 8

4. PERMANENT CONNECTION

4-1. For 230/208V Units

The 230/208V model is equipped for connection with a power cord according to the unit capacity at the time of shipment.

Should local codes or special requirements speci- fy permanent connection of this unit, use optional adapter kit (Cover plate and Bottom plate)

STK02JB.

A power cord is supplied with 230/208V units. For direct-connect applications, the power cord is cut and a wire nut connection is made to the building power supply. The cover plate and bottom plate are the junction box kit. The conduit and wire nuts are supplied by the installer.

4-1-1. Preparation

1)The electrical rating marked on the previously installed air conditioner must be the same as the supply branch circuit.

2)The modification kit provides for connection of 1/2" trade size electrical conduit and connection to a wiring system in accordance with the National Electric Code, ANSI/NFPA No. 70-1999.

4-1-2. Installation

1)Remove the Front Grille from the chassis by lift- ing out and up.

2)Cut the power cord approximately 6" from the Electrical Junction Box.

Cut

Approx. 6"

Power plug

3)Split and strip the wires as shown above.

4)Install the Bottom Plate using the provided field supplied conduit and power supply conductors to the unit with screw “B”.

5)Connect Power Supply wires to the stripped inner wires with the wire nuts.

6)Dress the wiring inside the compartment and attach the cover plate with screw “A”.

7)Reinstall the Front Grille.

Screw A

Electrical junction box

Power cord

Screw B

Bottom plate

Conduit

Cover plate

4-2. For 265V Units

All 265V units are direct connected and come with the cover plate (junction box) and bottom plate. The conduit is field-supplied by the installer.

4-2-1. Preparation

1)The electrical rating marked on the previously installed air conditioner must be the same as the supply branch circuit.

2)The unit provides for connection of 1/2 trade size electrical conduit and provision for connection to a wiring system in accordance with the National Electrical Code ANSI/NFPA No. 70-1993.

4-2-2. Installation

1)Remove the front grille from the chassis by lifting out and up to clear mounting brackets. (See “Front Grille” on page 3.)

2)Remove the “A” screw and cover plate from the mounting plate.