Carrier 23XL Dokumentacja Pobierz pdf (Strona 4)

CONTENTS (cont)

Control Test ................................69

Control Modules ............................80

• RED LED

• GREEN LEDs

Notes on Module Operation ..................80

Processor Module (PSIO) ....................81

• INPUTS

• OUTPUTS

Starter Management Module (SMM) ..........81

• INPUTS

• OUTPUTS

Options Modules (8-Input) ...................81

Replacing Defective Processor Modules ......82

• INSTALLATION

Solid-State Starters .........................83

• TESTING SILICON CONTROL RECTIFIERS

IN BENSHAW, INC. SOLID-STATE STARTERS

• TESTING SILICON CONTROL RECTIFIERS (SCRs)

IN CUTLER-HAMMERt SOLID-STATE STARTERS

• ELECTRONIC PROTECTION RELAY (EPR)

Physical Data ...............................89

INDEX ..................................103,104

INTRODUCTION

Everyone involved in the start-up, operation, and main-

tenance of the 23XL machine should be thoroughly familiar

with these instructions and other necessary job data before

initial start-up. This book is outlined so that you may be-

come familiar with the control system before performing start-up

procedures. Procedures are arranged in the sequence re-

quired for proper machine start-up and operation.

This unit uses a microprocessor control system. Do not

short or jumper between terminations on circuit boards

or modules; control or board failure may result.

Be aware of electrostatic discharge (static electricity)

when handling or making contact with circuit boards or

module connections. Always touch a chassis (grounded)

part to dissipate body electrostatic charge before work-

ing inside control center.

Use extreme care when handling tools near boards

and when connecting or disconnecting terminal plugs.

Circuit boards can easily be damaged. Always hold

boards by edges and avoid touching components and

connections.

This equipment uses and can radiate radio frequency

energy and, if not installed and used in accordance with

the instruction manual may cause interference to radio

communications. It has been tested and found to com-

ply with the limits for a Class A computing device pur-

suant to Subpart J of Part 15 of FCC Rules, which are

designed to provide reasonable protection against such

interference when operated in a commercial environ-

ment. Operation of this equipment in a residential area

is likely to cause interference, in which case the user, at

his own expense, will be required to take whatever mea-

sures may be required to correct the interference.

Always store and transport replacement or defective

boards in anti-static shipping bag.

ABBREVIATIONS AND EXPLANATIONS

Frequently used abbreviations in this manual include:

CCN — Carrier Comfort Network

CHWR — Common Chilled Water Return

CHWS — Common Chilled Water Supply

ECDW — Entering Condenser Water

ECW — Entering Chilled Water

HGBP — Hot Gas Bypass

I/O — Input/Output

LCD — Liquid Crystal Display

LCDW — Leaving Condenser Water

LED — Light-Emitting Diode

LID — Local Interface Device

LCW — Leaving Chilled Water

OLTA — Overload Trip Amps

PIC — Product Integrated Control

PSIO — Processor Sensor Input/Output Module

RLA — Rated Load Amps

SCR — Silicon Control Rectiﬁer

SI — International System of Units

SMM — Starter Management Module

The 23XL machines use HCFC-22 and HFC-134a refrig-

erant. When referencing refrigerant charges in this manual,

the HCFC-22 charge will be listed ﬁrst and the HFC-134a

value will be shown next to it in [ ].

Words printed in all capital letters or in italics may be viewed

on the LID.

The front cover of the PSIO shows the software version

it contains.

Factory installed additional components are called op-

tions in this manual. Factory supplied, ﬁeld installed addi-

tional components are referred to as accessories.

23XL MACHINE FAMILIARIZATION

(Fig. 1, 2A, and 2B)

Machine Identiﬁcation Nameplate —

The ma-

chine identiﬁcation nameplate is located on the right side of

the machine control panel center.

System Components — The components include cooler

and condenser, heat exchangers in separate vessels, motor-

compressor, lubrication package, control center, and op-

tional motor starter. All connections from pressure vessels

have external threads to enable each component to be pres-

sure tested with a threaded pipe cap during factory

assembly.

VI — Volumetric Index

SERIAL NUMBER BREAKDOWN

Fig. 1 — 23XL Identiﬁcation

1 2 3 4 5 6 7 8 9 ... 103 104

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