
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53581021-01
Printed in U.S.A.
Form SM581J-17-28-02
Pg 1
12-19
Replaces: SM581J-17-28-01
Service and Maintenance Instructions
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . .1
UNIT ARRANGEMENT AND ACCESS . . . . . . . . . . . . . .2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Routine Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
SUPPLY FAN (BLOWER) SECTION . . . . . . . . . . . . . . . .4
TWO-SPEED INDOOR FAN MOTOR SYSTEM:
2-SPEED FAN WITH VARIABLE FREQUENCY
DRIVE (VFD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Two-Speed Indoor Fan Motor System. . . . . . . . . . . . . . . . .5
Identifying Factory Option . . . . . . . . . . . . . . . . . . . . . . . . . .6
Unit Installation with 2-Speed Indoor Fan Motor Option.6
ADDITIONAL VFD INSTALLATION AND
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . .6
MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Replacing the Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Round Tube Plate Fin (RTPF) Condenser Coil . . . . . . . . .7
Recommended Condenser Coil Maintenance and
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Coil Maintenance and Cleaning Recommendation . . . . . .8
PERFECT HUMIDITY ADAPTIVE DEHUMIDIFICA-
TION SYSTEM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Perfect Humidity Modes . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Perfect Humidity System Components . . . . . . . . . . . . . . .10
Subcooler/Reheat Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Operating Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
THERMOSTATIC EXPANSION VALVE (TXV). . . . . .15
TXV Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
PURON® (R-410A) REFRIGERANT. . . . . . . . . . . . . . . .16
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
COOLING CHARGING CHARTS. . . . . . . . . . . . . . . . . .18
COMPRESSORS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Troubleshooting Cooling System . . . . . . . . . . . . . . . . . . . .22
Unit-Powered Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
GFCI Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Installing a Weatherproof Cover . . . . . . . . . . . . . . . . . . . . 25
Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
FIOP Smoke Detector Wiring and Response . . . . . . . . . . 28
Sensor and Controller Tests . . . . . . . . . . . . . . . . . . . . . . . . 29
Detector Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
INDICATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Supply (Indoor) Fan Motor Protection . . . . . . . . . . . . . . . 31
GAS HEATING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . 32
Flue Gas Passageways. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Combustion-Air Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Burners and Igniters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
ECONOMI$ER SYSTEMS . . . . . . . . . . . . . . . . . . . . . . . . 44
EconoMi$er IV Standard Sensors . . . . . . . . . . . . . . . . . . . 48
EconoMi$er® X (Factory Option). . . . . . . . . . . . . . . . . . . 54
FASTENER TORQUE VALUES . . . . . . . . . . . . . . . . . . . 69
APPENDIX A — MODEL NUMBER
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
APPENDIX B — PHYSICAL DATA . . . . . . . . . . . . . . . . 71
APPENDIX C — FAN PERFORMANCE . . . . . . . . . . . . 75
APPENDIX D — WIRING DIAGRAMS . . . . . . . . . . . . . 83
APPENDIX E — MOTORMASTER SENSOR
LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . . . . CL-1
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 basic maintenance functions of
cleaning coils and filters and replacing filters. All other operations
should be performed by trained service personnel. When working
on air-conditioning equipment, observe precautions in the litera-
Preferred Series™
581J*17-28
Gas Heat/Electric Cooling
with Puron
®
(R-410A) Refrigerant
Содержание 581J 17-28 Series
Страница 18: ...18 COOLING CHARGING CHARTS Fig 21 Cooling Charging Chart 15 Ton ...
Страница 19: ...19 Fig 22 Cooling Charging Chart 17 5 Ton ...
Страница 20: ...20 Fig 23 Cooling Charging Chart 20 Ton ...
Страница 21: ...21 Fig 24 Cooling Charging Chart 25 Ton ...
Страница 36: ...36 Fig 47 Unit Control Box IGC Location IGC Board IGC Board Side view Front view ...
Страница 39: ...39 Fig 50 Integrated Gas Control IGC Board RED LED STATUS ...
Страница 45: ...45 Fig 56 RTU Open Overlay for Economizer Wiring ...
Страница 46: ...46 Fig 57 VFD Overlay for W2770 Controller Wiring ...
Страница 84: ...84 Fig B 581J 17 28 Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 85: ...85 Fig C 581J 17 28 Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 86: ...86 Fig D 581J 17 28 Power Diagram 460 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 87: ...87 Fig E 581J 17 28 Power Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 88: ...88 Fig F 581J 17 28 Control Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 89: ...89 Fig G 581J 17 28 Power Diagram 208 230 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 90: ...90 Fig H 581J 17 28 Power Diagram 460 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 91: ...91 Fig I 581J 17 28 Power Diagram 575 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 92: ...92 Fig J RTU OPEN Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 93: ...93 Fig K RTU OPEN Wiring Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...