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581A operation manual
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Contents
Main
installation, start-up and service instructions
SINGLE PACKAGE ROOFTOP ELEC TRIC COOLING/GAS HEATING UNITS
581A Dura
Pac
Plus Series
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Fig. 4 Base Unit Dimensions
Table 1 Physical Data
Table 2 Fan Motor and Drive Data Vertical Supply/Return
Table 3 Fan Motor and Drive Data Horizontal Supply/R eturn
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Table 4A Electrical Data Units Without Convenience Outlet
Never operate a motor where a phase imbalance in supply voltage is greater than 2%.
Table 4B Electrical Data Units With Optional Convenience Outlet
Never operate a motor where a phase imbalance in supply voltage is greater than 2%.
NOTE: Units with manual damper only use one filter.
Fig. 18 Outdoor-Air Hood Details
Fig. 20 Manual Damper Details
Fig. 19 Outdoor-Air Hood Assembled
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Table 6 Fan Performance 581A210 Medium Heat Vertical Discharge Units*
Table 7 Fan Performance 581A210 High Heat Vertical Discharge Units*
Table 8 Fan Performance 581A240 Low Heat Vertical Discharge Units*
Table 9 Fan Performance 581A240 Medium Heat Vertical Discharge Units*
Table 10 Fan Performance 581A240 High Heat Vertical Discharge Units*
Table 11 Fan Performance 581A300 Low Heat Vertical Discharge Units*
Table 12 Fan Performance 581A300 Medium Heat Vertical Discharge Units*
Table 13 Fan Performance 581A300 High Heat Vertical Discharge Units*
GENERAL NOTES FOR TABLES 5-22
Table 14 Fan Performance 581A210 Low Heat Horizontal Discharge Units*
Table 15 Fan Performance 581A210 Medium Heat Horizontal Discharge Units*
Table 16 Fan Performance 581A210 High Heat Horizontal Discharge Units*
Table 17 Fan Performance 581A240 Low Heat Horizontal Discharge Units*
Table 18 Fan Performance 581A240 Medium Heat Horizontal Discharge Units*
Table 19 Fan Performance 581A240 High Heat Horizontal Discharge Units*
Table 20 Fan Performance 581A300 Low Heat Horizontal Discharge Units*
Table 21 Fan Performance 581A300 Medium Heat Horizontal Discharge Units*
Table 22 Fan Performance 581A300 High Heat Horizontal Discharge Units*
Table 23 Power Exhaust Fan Performance
Table 24 Operation Air Quantity Limits
*7000 cfm minimum recommended above 1.0 in. wg external static pressure.
300
240
210
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Table 28 EconoMi$er IV Sensor Usage
Fig. 23 EconoMi$er IV Component Locations (Exploded View)
Fig. 24 Supply-Air Temperature Sensor Location
D C B A
Fig. 25 Outdoor-Air Temperature Changeover Set Points
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ENTHALPYBTU PER POUND DRY AIR
APPROXIMATE DRY BULB TEMPERATURE F (C)
A
2345678
Fig. 27 Enthalpy Changeover Set Points
Fig. 29 CO2 Sensor Maximum Range Setting
Fig. 28 EconoMi$er IV Controller Potentiometer and LED Locations
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LEGEND
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LEGEND TXV Thermostatic Expansion Valve
Table 35 Heating Service Analysis
Table 36 IGC Board LED Alarm Codes
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before starting troubleshooting.
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I. PRE-START-UP:
II. START-UP