Carrier 30RAP010-060 specifications Contents, Safety Considerations

CONTENTS (cont)

Page

Complete Unit Stoppage and Restart . . . . . . . . . . . . . . 64

•GENERAL POWER FAILURE

•UNIT ENABLE-OFF-REMOTE CONTACT SWITCH IS OFF

•CHILLED FLUID PROOF-OF-FLOW SWITCH OPEN

•OPEN 24-V CONTROL CIRCUIT BREAKERS

•COOLING LOAD SATISFIED

•THERMISTOR FAILURE

•LOW SATURATED SUCTION

•COMPRESSOR SAFETIES

Alarms and Alerts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 APPENDIX A — DISPLAY TABLES . . . . . . . . . . . . . . 74-89 APPENDIX B — CCN TABLES . . . . . . . . . . . . . . . . . . 90-100

APPENDIX C — FACTORY SETTINGS FOR

PUMP AND MANUAL STARTERS. . . . . . . . . . . . . . . . 101

APPENDIX D — OPTIONAL BACNET COMMUNICATONS WIRING . . . . . . . . . . . . . . . . . 102-109

APPENDIX E — MAINTENANCE SUMMARY

AND LOG SHEETS . . . . . . . . . . . . . . . . . . . . . . . . . . 110-113

START-UP CHECKLIST FOR 30RAP LIQUID CHILLER. . . . . . . . . . . . . . . . . . . . . . . . . . . . .CL-1 to CL-10

SAFETY CONSIDERATIONS

Installing, starting up, and servicing this equipment can be hazardous due to system pressures, electrical components, and equipment location (roof, elevated structures, mechanical rooms, etc.). Only trained, qualified installers and service mechanics should install, start up, and service this equipment.

When working on this equipment, observe precautions in the literature, and on tags, stickers, and labels attached to the equipment, and any other safety precautions that apply. Follow all safety codes. Wear safety glasses and work gloves. Use care in handling, rigging, and setting this equipment, and in handling all electrical components.

WARNING

Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation. There may be more than one disconnect switch. Tag all discon- nect locations to alert others not to restore power until work is completed.

WARNING

DO NOT VENT refrigerant relief valves within a building. Outlet from relief valves must be vented outdoors in accordance with the latest edition of ANSI/ASHRAE (American National Standards Institute/American Society of Heating, Refrigeration and Air Conditioning Engineers) 15 (Safety Code for Mechanical Refrigeration). The accumulation of refrigerant in an enclosed space can displace oxygen and cause asphyxiation. Provide adequate ventilation in enclosed or low overhead areas. Inhalation of high concentrations of vapor is harmful and may cause heart irregularities, unconsciousness or death. Misuse can be fatal. Vapor is heavier than air and reduces the amount of oxygen available for breathing. Product causes eye and skin irritation. Decomposition products are hazardous.

WARNING

DO NOT attempt to unbraze factory joints when servicing this equipment. Compressor oil is flammable and there is no way to detect how much oil may be in any of the refrigerant lines. Cut lines with a tubing cutter as required when performing service. Use a pan to catch any oil that may come out of the lines and as a gage for how much oil to add to system. DO NOT re-use compressor oil.

CAUTION

This unit uses a microprocessor-based electronic control system. Do not use jumpers or other tools to short out components, or to bypass or otherwise depart from recom- mended procedures. Any short-to-ground of the control board or accompanying wiring may destroy the electronic modules or electrical components.

CAUTION

To prevent potential damage to heat exchanger, always run fluid through heat exchanger when adding or removing refrigerant charge. Use appropriate brine solutions in cooler fluid loop to prevent the freezing of brazed plate heat exchanger, optional hydronic section and/or interconnecting piping when the equipment is exposed to temperatures below 32 F (0 °C). Proof of flow switch and strainer are factory installed on all models. Do NOT remove power from this chiller during winter shutdown periods without taking precaution to remove all water from heat exchanger and optional hydronic system. Failure to properly protect the system from freezing may constitute abuse and may void warranty.

CAUTION

Compressors and optional hydronic system pumps require specific rotation. Test condenser fan(s) first to ensure proper phasing. Swap any two incoming power leads to correct condenser fan rotation before starting any other motors.

CAUTION

Refrigerant charge must be removed slowly to prevent loss of compressor oil that could result in compressor failure.

CAUTION

Puron® refrigerant (R-410A) systems operate at higher pressures than standard R-22 systems. Do not use R-22 ser- vice equipment or components on Puron refrigerant equip- ment. If service equipment is not rated for Puron refrigerant, equipment damage or personal injury may result.

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