Bryant 580J D17, Service And Maintenance Instructions

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580J 17 − 30
Gas Heat Packaged Rooftop
Nominal 15 to 27.5 Tons
with Puron (R − 410A) Refreigerant
Service and Maintenance Instructions
TABLE OF CONTENTS
SAFETY CONSIDERATIONS 1 . . . . . . . . . . . . . . . . . . . .
UNIT ARRANGEMENT AND ACCESS 3 . . . . . . . . . . . .
SUPPLY FAN (BLOWER) SECTION 4 . . . . . . . . . . . . . .
2 − SPEED INDOOR FAN MOTOR SYSTEM WITH
VARIABLE FREQUENCY DRIVE (VFD) 6 . . . . . . . . . .
ADDITIONAL VFD INSTALLATION AND
TROUBLESHOOTING 6 . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EVAPORATOR COILS 10 . . . . . . . . . . . . . . . . . . . . . . . . .
PERFECT HUMIDITY
™
DEHUMIDIFICATION SYSTEM 12 . . . . . . . . . . . . . . . . .
THERMOSTATIC EXPANSION VALVE (TXV) 17 . . . . .
PURON (R − 410A) REFRIGERANT 19 . . . . . . . . . . . . .
COOLING CHARGING CHARTS 20 . . . . . . . . . . . . . . . .
COOLING CHARGING CHARTS (CONT) 21 . . . . . . . . .
COOLING CHARGING CHARTS (CONT) 22 . . . . . . . . .
COOLING CHARGING CHARTS (CONT) 23 . . . . . . . . .
COMPRESSORS 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING THE COOLING SYSTEM 26
CONVENIENCE OUTLETS 27 . . . . . . . . . . . . . . . . .
SMOKE DETECTORS 28 . . . . . . . . . . . . . . . . . . . . . .
INDICATORS 34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PROTECTIVE DEVICES 35 . . . . . . . . . . . . . . . . . . . .
RTU − OPEN CONTROL SYSTEM 36 . . . . . . . . . . . . .
GAS HEATING SYSTEM 38 . . . . . . . . . . . . . . . . . . . .
ECONOMI$ER SYSTEMS 49 . . . . . . . . . . . . . . . . . . .
PRE − START − UP/START − UP 57 . . . . . . . . . . . . . . . . .
START − UP, GENERAL 58 . . . . . . . . . . . . . . . . . . . . .
START − UP, RTU − OPEN CONTROLS 60 . . . . . . . . . .
FASTENER TORQUE VALUES 60 . . . . . . . . . . . . . .
APPENDIX I. MODEL NUMBER
NOMENCLATURE − VERTICAL 61 . . . . . . . . . . . . .
APPENDIX I. MODEL NUMBER
NOMENCLATURE − HORIZONTAL 62 . . . . . . . . . .
APPENDIX II. PHYSICAL DATA 63 . . . . . . . . . . . . .
APPENDIX III. FAN PERFORMANCE 73 . . . . . . . . .
APPENDIX IV. WIRING DIAGRAMS 79 . . . . . . . . .
APPENDIX V. MOTORMASTER SENSOR
LOCATIONS 90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNIT START-UP CHECKLIST 91 . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
components. Only trained and qualified service personnel
should install, repair, or service air-conditioning
equipment. Untrained personnel 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 aware of the potential for
physical injury hazards .
Understand the signal words
DANGER
,
WARNING
, and
CAUTION . These words are used with the safety − alert
symbol. DANGER identifies a hazardous situation which,
if not avoided,
will
result in death or severe personal
injury. WARNING indicates a hazardous situation which,
if not avoided, could result in death or personal injury.
CAUTION indicates a hazardous situation which, if not
avoided, could result in minor to moderate injury or
product and property damage. NOTICE is used to address
practices not related to physical injury.
NOTE
is used to
highlight suggestions which will result in enhanced
installation, reliability, or operation.