Carrier 30GN040-420 - Manual

Carrier 30GN040-420

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Table of Contents:

  • Page 2 – Table 1 — Unit Sizes and Modular Combinations; MAJOR SYSTEM COMPONENTS
  • Page 3 – — Terminal Block
  • Page 4 – Switch Positions and Operation
  • Page 5 – Sensors —; Table 3 — Thermistor and Transducer Locations; OPERATION DATA; Fig. 2 — Compressor Protection Control Module
  • Page 24 – DISPLAY; CLOCK ON; ALARMS; Fig. 4 — Keypad and Display Module
  • Page 25 – Table 5 — Condenser Fan Sequence; FAN ARRANGEMENT
  • Page 30 – TEST
  • Page 31 – SCHEDULE
  • Page 32 – SERVICE
  • Page 34 – HISTORY
  • Page 35 – SET POINT
  • Page 37 – Table 10 — Operational and Mode Display Codes
  • Page 38 – Example 3 — Using Test Function; KEYPAD; Chilled Fluid Set Point
  • Page 41 – Fig. 6 — Cooling External Temperature Reset; — Power
  • Page 42 – Example 6 — Changing Reset Type; To change type of reset, first log on as shown in; To use Demand Limit, first enable loadshed, then enter; Table 12 — Service Functions; To view and modify configurations, the password must be; Fig. 8 — 4-20 mA Cooling Temperature Reset
  • Page 46 – CCN — Carrier Comfort Network
  • Page 47 – Example 10 — Holiday Schedule Function; TROUBLESHOOTING; Fig. 10 — Sample Time Schedule
  • Page 48 – Table 15 — Typical Stoppage Faults and Reset Types
  • Page 49 – Table 16 — Alarm and Alert Codes
  • Page 50 – Compressor Alarm/Alert Circuit —
  • Page 56 – EXV — Electronic Expansion Valve; Fig. 13 — EXV Cable Connections to EXV Driver
  • Page 57 – Thermistors —
  • Page 60 – Pressure Transducers —; A single style of pressure; — Thermistor Number; Fig. 14 — Thermistor and Pressure Transducer Locations
  • Page 61 – Fig. 15 — Thermistor Locations; Fig. 16 — Thermistors
  • Page 62 – Fig. 17 — Lead Compressor Transducer and Thermistor Locations
  • Page 63 – Control Modules; Fig. 18 — Module Address
  • Page 64 – ACCESSORY UNLOADER INSTALLATION; Some of the 30G FlotronicTM II units come standard with; Fig. 19 — Sensor Bus Wiring
  • Page 65 – Installation
  • Page 66 – Table 19 — Troubleshooting; Table 20 — Standard and Accessory Unloaders
  • Page 68 – Fig. 23 — Accessory Unloader Control Wiring, All Units
  • Page 69 – FIELD WIRING
  • Page 70 – TB — Terminal Block; Fig. 34 — Remote Alarm; TB
Loading the manual

Controls, Operation, and

Troubleshooting

with Microprocessor Controls and Electronic Expansion Valves

CONTENTS

Page

SAFETY CONSIDERATIONS

. . . . . . . . . . . . . . . . . . 2

GENERAL

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

MAJOR SYSTEM COMPONENTS

. . . . . . . . . . . . 2-5

Processor Module

. . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Low-Voltage Relay Module

. . . . . . . . . . . . . . . . . . . 4

Electronic Expansion Valve Module

. . . . . . . . . . . 4

Options Module

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Keypad and Display Module

(Also Called HSIO or LID)

. . . . . . . . . . . . . . . . . . 4

Control Switch

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Electronic Expansion Valve (EXV)

. . . . . . . . . . . . 4

Thermostatic Expansion Valves (TXV)

. . . . . . . . 4

Sensors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Compressor Protection Control

Module (CPCS)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

OPERATION DATA

. . . . . . . . . . . . . . . . . . . . . . . . . . 5-46

Capacity Control

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Head Pressure Control

. . . . . . . . . . . . . . . . . . . . . . 24

• EXV UNITS
• TXV UNITS

Pumpout

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

• EXV UNITS
• TXV UNITS

Keypad and Display Module

(Also Called HSIO or LID)

. . . . . . . . . . . . . . . . . 24

• ACCESSING FUNCTIONS AND SUBFUNCTIONS
• AUTOMATIC DEFAULT DISPLAY
• AUTOMATIC DISPLAY OPERATION/DEFAULT

DISPLAY

• KEYPAD OPERATING INSTRUCTIONS
• STATUS FUNCTION
• TEST FUNCTION
• HISTORY FUNCTION
• SET POINT FUNCTION
• SERVICE FUNCTION
• SCHEDULE FUNCTION

TROUBLESHOOTING

. . . . . . . . . . . . . . . . . . . . . . 47-64

Checking Display Codes

. . . . . . . . . . . . . . . . . . . . 47

Page

Unit Shutoff

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Complete Unit Stoppage

. . . . . . . . . . . . . . . . . . . . 48

Single Circuit Stoppage

. . . . . . . . . . . . . . . . . . . . . 48

Lag Compressor Stoppage

. . . . . . . . . . . . . . . . . . 48

Restart Procedure

. . . . . . . . . . . . . . . . . . . . . . . . . . 48

• POWER FAILURE EXTERNAL TO THE UNIT

Alarms and Alerts

. . . . . . . . . . . . . . . . . . . . . . . . . . 48

Compressor Alarm/Alert Circuit

. . . . . . . . . . . . . 50

Electronic Expansion Valve (EXV)

. . . . . . . . . . . 55

• EXV OPERATION
• CHECKOUT PROCEDURE

Thermostatic Expansion Valve (TXV)

. . . . . . . . . 57

Thermistors

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

• LOCATION
• THERMISTOR REPLACEMENT (T1, T2, T7, T8)

Pressure Transducers

. . . . . . . . . . . . . . . . . . . . . . 60

• TROUBLESHOOTING
• TRANSDUCER REPLACEMENT

Control Modules

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

• PROCESSOR MODULE (PSIO), 4IN/4OUT

MODULE (SIO), LOW-VOLTAGE RELAY
MODULE (DSIO-LV), AND EXV DRIVER
MODULE (DSIO-EXV)

• RED LED
• GREEN LED
• PROCESSOR MODULE (PSIO)
• LOW-VOLTAGE RELAY MODULE (DSIO)
• 4IN/4OUT MODULE (SIO)

ACCESSORY UNLOADER INSTALLATION

. . . 64-68

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

• 040-110, 130 (60 Hz) UNITS

(And Associated Modular Units)

• 130 (50 Hz), 150-210 UNITS

(And Associated Modular Units)

FIELD WIRING

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69,70

REPLACING DEFECTIVE PROCESSOR

MODULE (PSIO)

. . . . . . . . . . . . . . . . . . . . . . . . . . 70

Installation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

30GN040-420

Flotronic™ II Reciprocating Liquid Chillers

50/60 Hz

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

Book 2
Tab

5c

PC 903

Catalog No. 563-079

Printed in U.S.A.

Form 30GN-3T

Pg 1

7-95

Replaces: 30G-1T

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Summary

Page 2 - Table 1 — Unit Sizes and Modular Combinations; MAJOR SYSTEM COMPONENTS

SAFETY CONSIDERATIONS Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical compo-nents, and equipment location (roof, elevated structures, etc.).Only trained, qualified installers and service mechanics shouldinstall, start up, and service this eq...

Page 3 - — Terminal Block

7 8 9 4 5 6 1 2 3 – 0 • STAT EXPN HIST CLR SCHD SRVC SET TEST ENTR F U S E 1 LO C A L /E N A B L E S W 1 S T O P C C N F U S E 3 F U S E 2 F U S E F U S E FU S E C B 5 C B 6 EQUIP GND 99NA505322 D COMM 1COMM 3 PWR X X S1 S2 X X POINT NUMBER OF FIRST CHANNEL COMM 3 PWR LV EXV STA TUS COMM STA TUS COM...

Page 4 - Switch Positions and Operation

also controls the EXV driver module (as appropriate), com-manding it to open or close each EXV in order to maintainthe proper superheat entering the cylinders of each lead com-pressor. Information is transmitted between the processor mod-ule and relay module, the EXV driver module, and the key-pad a...

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