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580J*08--14D,F (2--COMPRESSOR)
NOMINAL 7.5 to 12.5 TONS
WITH PURONR (R--410A) REFRIGERANT
Service and Maintenance Instructions
TABLE OF CO NTENTS
SAFETY CONSIDERAT IONS 1....................
UNIT ARRANGEMENT AND ACCESS 2...........
SUPPLY FAN (BLOWER ) SECTION 4..............
COOLIN G 6....................................
PURONR (R--410A) REFRIGERANT 8..............
COOLIN G CHARGING CHARTS 10................
CONVENIENCE OUTLETS 16....................
SMOKE DETECTORS 17.........................
PROTECTIVE DEVI CES 24.......................
GAS HEATING SYSTEM 25......................
CONDENSER COIL SERVICE 35..................
RTU--MP CONTROL SYSTEM 35..................
ECONOMI$ER SYSTEMS 50......................
WIRING DIAGRAMS 59.........................
PRE--STA RT--UP 62..............................
START--U P, GENERAL 62........................
START--U P, RTU--MP CONTROL 64................
OPERATING SEQUENCES 67.....................
FASTENER TORQUE VALUES 71.................
APPENDIX I. MODEL NUMBER SIGNIFICANCE 72.
APPENDIX II. PHYSICAL DATA 73................
APPENDIX III. FAN PERFORMANCE 75...........
APPENDIX IV. WIR ING DIAGR AM LIST 82........
APPENDIX V. MOTORMASTER SENSOR
LOCATIONS 83.................................
UNIT START-UP CHECKLIST 85..................
SAFETY CONSIDERATIONS
Installation and servicing of a ir-conditioning equipment
can be hazardous due to system pressure and electrical
compone nts. Only trained and qualified service personnel
should install, repair, or service air-conditioning
equipment. Untrained pe rsonnel can perform the basic
maintenance functions of replacing filters. Trained service
personnel should perform all other operations.
When working on air-conditioning equipment, observe
precautions in the literature, tags and labels attached to
the unit, and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for unbrazing operations.
Have fire extinguishers available for all brazing
operations.
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have
fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions attached to
the unit. Consult local building codes and National
Electrical Code (NEC) for special requirements.
Recognize safety information. This is the safety--alert
symbol
. When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for
personal injury.
Understand the signal wor ds DANGER , WARNING, and
CAUTION. These words are used with the safety--alert
symbol. DANGER identifies the most serious hazards
which will result in severe personal injury or death.
WARNING signifies a hazard which could result in
personal injury or dea th. CAUTION is used to identify
unsafe practices which may result in m inor personal
injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced
installation, reliability, or operation.