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Title: Chiller High Voltage Motor Terminations Lesson Plan #: NMH30L050303

EO 1.1.2 Install a high voltage chiller motor terminal assembly.

1.1.2.1 Introduction

In this objective the trainee will perform the procedure for installing the motor terminal assembly on 19FA Carrier

Centrifugal Chillers.

1.1.2.2 Methods and Activities

Refer to the applicable vendor documents.

1.1.2.3 Main Idea

Although there are currently three styles of high voltage terminal assemblies used on our 19FA

chillers, the ceramic style is the only one available for replacements.

Before using the replacement kit, check the VTD to ensure you have the correct kit needed for your

application. And to make sure all parts required are included in the kit.

Be sure to carefully read and understand the installation instructions before starting the installation.

1) Installation Instructions for the ceramic terminals.

To ensure a leak tight seal, the motor end terminal board mating surfaces must be clean and

smoothly coated with epoxy paint which has had sufficient time to cure dry.

a) Lightly lubricate quad ring (Parker Super Lube) or approved vendor lube. Install in terminal

board groove. Slide assembly over motor lead.

b) Install terminal board to motor shell with bolts and washers and evenly tighten bolts to

approximately 5 ft lbs.

c) Then torque bolts to 12-15 ft-lbs in a sequence As shown in the VTD or vendor supplied

instructions. Users of M&TE, ensure M&TE calibrations are current as specified on the

calibration label, we are responsible to ensure calibration is current. We are responsible to

ensure M&TE is within its restricted usage criteria.

i) Take note that new bolts are included to accommodate the "thickness of the new

aluminum terminal board compared to the old plastic type terminal board. (the new bolts

are shorter)

d) Install o-ring on ceramic insulator.

e) Lubricate ceramic insulator o-ring and mating surface with o-ring lubricant.

f) Slide terminal stud into ceramic insulator.

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Carrier 19FA Manuale Utente Pagina 10