Carrier 120-60-1 User Manual

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Electronic Air Cleaner

120-60-1Power Supply Kit

Cancels: IIK 901K-12-5

IIK 901K-12-7

 

7-95

Installation Instructions

Part No. 322044-701

NOTE: Read the entire instruction manual before starting the installation.

This symbol indicates a change since the last issue.

SAFETY CONSIDERATIONS

Recognize safety information. This is the safety-alertsymbol. When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAUTION. These words are used with the safety-alertsymbol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNING signifies a hazard whichcould result in personal injury or death. CAUTION is used to identify unsafe practices whichwould result in minor personal injury or product and property damage.

INTRODUCTION

This instruction covers the installation of power supply kit Part No. 322044-701in an electronic air cleaner with a120v-60Hz-1phase power supply.

DESCRIPTION AND USAGE

The kit is designed to replace both current and previous design power supplies for duct-mountedmodels only. See Step 2 for models 31MB and 907A; see Step 3 for models 31MM, 31MP, 901A and B also 907B and C; see Step 4 for models 31SX, 120v 31KAX, 901E and G, 120v 901KAX; see Step 5 for 240v models 31SX, 31KAX, 901E, 901KAX, and 901G.

The kit contains the following items:

Power supply

1

Busbar assembly (2-3/16in.,4-13/16in., and8-1/2in.)

1 each

Wirenut

4

Phillips-headsheet-metalscrew

4

6-32machine screw

2

Hex nut

1

Wire clip

1

Angle bracket

1

Installation Instructions

1

INSTALLATION

Step 1ÐRemove Power Supply

1.Turn off main electrical supply to air cleaner and air handler.

2. Remove power door from air cleaner. Remove inside of door to expose the power supply.

3.Disconnect existing wires from existing power supply.

4.Remove existing power supply from power door.

Use care when attaching wires or bus bar to the new power supply to avoid damaging terminals and/or printed-circuitboard.

Step 2ÐInstall New Power Supply in Model 31MB or 907A

1.Cut terminal ends off wires disconnected from failed power supply and strip 1/2 in. insulation from wires.

2.Using 4 sheet-metalscrews provided in kit, install new power supply.

3.Choose proper length bus bar (2-3/16in.) and assemble angle bracket to bus bar. (See Fig. 1.)

4.Using machine screw and nut, attach existing surge resistor to angle bracket. (See Fig. 1.)

5.Attach bus bar to high-voltageterminal of power supply.

6.Using wire nuts provided in kit, splice wires. Violet wire can attach to either red wire. (See Fig. 1.)

7.Route wires so they will not contact high-voltagecircuit and install wire clip.

8.Reinstall power door in air cleaner.

9.Turn on main electrical supply to the air cleaner and air handler.

10.Check air cleaner for proper operation before leaving job.

Step 3ÐInstall New Power Supply in Models 31MM, 31MP, 901A and B, also 907B and C

1.Using 4 sheet-metalscrews provided in kit, install new power supply.

2.Cut terminal ends off wires disconnected from failed power supply and strip 1/2 in. of insulation from wire. Splice wires to new power supply wires with wire nuts provided in kit. (See Fig. 1.)

3.Remove existing surge resistor, if applicable, and discard. Surge resistor is an integral part of the new power supply.

4.Install proper length bus bar.

5.Route wires so they will not contact high-voltagecircuit and install wire clip.

6.Reinstall power door in air cleaner.

7.Turn on main electrical supply to the air cleaner and air handler.

8.Check air cleaner for proper operation before leaving the job.

Step 4ÐInstall of New Power Supply in 120v Models 31KAX, 31SX, 901E and G, and 901KAX

1.Using 4 sheet-metalscrews provided in kit, install new power supply.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book

1

4

PC 101

Catalog No. 533-104

Printed in U.S.A.

Form 31KAX-11SI

Pg 1

7-95

Replaces: 31KAX-6SI

Tab

7a

9a

 

 

 

 

 

 

 

 

TYPICAL WIRENUT

 

 

 

(WHEN REQUIRED)

WIRE CLIP

 

 

 

 

 

BLK

 

 

 

RED OR

 

 

EXISTING

VIO

 

 

WIRES

WHT

 

 

 

 

 

 

RED

 

 

 

 

RED

 

 

 

WHT

BLK

EXISTING SURGE

 

VIO

 

 

RESISTOR

 

 

 

BUSBAR

 

 

 

GND

A95271

Fig. 1ÐModels 31MB, 31MM, 31MP, 31SX, 907A, 901A/B, 901E/G, 907B/C with 120-60-1Electrical Supply

2.Remove wires from power supply and discard.

3.Connect existing wires and busbar for models 31SX and 901E also G. (See Fig. 1.) Do the same for models 31KAX and 901KAX. (See Fig. 3.)

4.Reinstall power door in air cleaner.

5.Turn on main electrical supply to air cleaner and air handler.

6.Check air cleaner for proper operation before leaving job.

Step 5ÐInstall New Power Supply in 240v Models 31KAX, 31SX, 901E also G, and 901KAX

1.Using 4 sheet-metalscrews provided in kit, install new power supply.

2.Remove and discard wires from power supply.

3.Connect existing wires and bus bar for models 31SX and 901E also G. (See Fig. 2.) Do the same for models 31KAX and 901KAX. (See Fig. 4.)

4.Reinstall power door in air cleaner.

5.Turn on main electrical supply to air cleaner and air handler.

6.Check air cleaner for proper operation before leaving job. If the unit fails to operate, check for faulty transformer.

2

WIRE TIE

BLK

YEL

VIO

RED

BUSBAR

BLK

BLK

 

YEL

YEL

VIO

GND

A95272

Fig. 2ÐModels 31SX, 901E, and 901G with 240-60-1Electrical Supply

BUSBAR

BLUE/SILVER

BLUE/GOLD

BLK

 

WHT

A95273

Fig. 3ÐModels 31KAX/901KAX with 120-60-1Electrical Supply

3

TRANSFORMER

BLK

BLK

"Z" BUSBAR

WHT

 

WHT

BLUE/SILVER

 

WHT

 

 

BLK

 

 

MOUNTING

WIRE CLIP

BLUE/GOLD

 

PLATE

 

 

 

 

SPLICE CONNECTORS

 

Fig. 4ÐModels 31KAX/901KAX with 240-60-1Electrical Supply

Copyright 1995 Carrier Corporation

901k127

 

 

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book

1

4

PC 101

Catalog No. 533-104

Printed in U.S.A.

Form 31KAX-11SI

Pg 4

7-95

Replaces: 31KAX-6SI

 

Tab

7a

9a