International comfort products RGS Series User Manual

1
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 2...................
UNIT ARRANGEMENT AND ACCESS 3...........
SUPPLY FAN (BLOWER) SECTION 5.............
COOLING 6....................................
R−410A REFRIGERANT 8.......................
COOLING CHARGING CHARTS 10...............
CONVENIENCE OUTLETS 14....................
SMOKE DETECTORS 16........................
SENSOR AND CONTROLLER 16.................
INDICATORS 21................................
TROUBLESHOOTING 21........................
PROTECTIVE DEVICES 22......................
GAS HEATING SYSTEM 23......................
ECONOMIZER SYSTEMS 33....................
WIRING DIAGRAMS 42.........................
PRE START−UP 44.............................
START−UP, GENERAL 44.......................
OPERATING SEQUENCES 46...................
FASTENER TORQUE VALUES 47................
APPENDIX I. MODEL NUMBER SIGNIFICANCE 48
APPENDIX II. PHYSICAL DATA 49...............
APPENDIX III. FAN PERFORMANCE 51..........
APPENDIX IV. ELECTRICAL DATA 55............
APPENDIX V. MOTORMASTER SENSOR
LOCATIONS 57.................................
UNIT START-UP CHECKLIST 58.................
RGS Series
7.5 to 12.5 Ton
Package Gas/Electric Cooling Units
With R−410A Refrigerant
And Micro−channel Condenser Coils
Service and Maintenance Instructions
509 08 3601 00
06/14/10

International comfort products RGS Series Specifications

General

Brand	International comfort products
Model	RGS Series
Category	Air Conditioner
Language	English

Summary

Safety Considerations

Supply Fan (Blower) Section

Belt Inspection and Adjustment

Adjustable-Pitch Pulley on Motor

Cooling System Operation and Maintenance

R-410A Refrigerant Handling

Details R-410A refrigerant properties and handling precautions.

Cooling Charging Charts

Compressor Service

Compressor Lubrication and Replacement

Describes compressor oil, replacement, and rotation checks.

Smoke Detectors

Troubleshooting and Testing Procedures

Diagnosing detector issues and performing tests.

Protective Devices

Compressor Protection Systems

Details overcurrent, overtemp, and pressure protection.

Supply Fan Motor Protection

Gas Heating System

Heating System General Overview

Fuel Types and Pressure Requirements

Information on natural gas and propane fuel.

Burner Ignition System

Information on the direct spark ignition system.

Operating Sequences

Cooling Operation Without Economizer

Heating Operation Without Economizer

Cooling Operation With Economizer

Describes cooling operation with economizer.

Heating Operation With Economizer

Describes heating operation with economizer.

Demand Controlled Ventilation with Economizer

Appendix I. Model Number Significance

Unit Start-Up Checklist

Pre-Start-Up Checks

Pre-operational checks before unit startup.

Start-Up Procedures

Electrical, temperature, and pressure checks during startup.