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Bryant 581A/B manual Heating Capacities and Efficiencies 581B036-150cont

Models: 581A/B

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ARI* CAPACITY RATINGS (cont)

HEATING CAPACITIES AND EFFICIENCIES — 581B036-150(cont)

208/230/460-3-60 — SINGLE-STAGE GAS HEAT — LOW NOx

UNIT		INPUT CAPACITY			OUTPUT CAPACITY				TEMPERATURE					MINIMUM HEATING				EFFICIENCY
581B		INPUT CAPACITY			OUTPUT CAPACITY					RISE (°F)					AIRFLOW (CFM)			AFUE (%)		Steady State (%)
581B										RISE (°F)					AIRFLOW (CFM)			AFUE (%)		Steady State (%)
036060N	60,000					50,000					20-50				930			80.2	81.2
036090N	90,000					74,000					30-60				1150			81.0	81.4
048060N	60,000					50,000					20-50				930			80.2	81.2
048090N	90,000					74,000					30-60				1150			81.0	81.4
048120N	120,000					101,000					40-70				1340			80.7	82.4
060060N	60,000					50,000					20-50				930			80.2	81.2
060090N	90,000					74,000					30-60				1150			81.0	81.4
060120N	120,000					101,000					40-70				1340			80.7	82.4
						208/230/460-3-60 — SINGLE-STAGE GAS HEAT
							(California Compliant Models)

UNIT		INPUT CAPACITY			OUTPUT CAPACITY				TEMPERATURE					MINIMUM HEATING				EFFICIENCY
581B		INPUT CAPACITY			OUTPUT CAPACITY					RISE (°F)					AIRFLOW (CFM)			AFUE (%)		Steady State (%)
581B										RISE (°F)					AIRFLOW (CFM)			AFUE (%)		Steady State (%)
036071	72,000					59,040					25-55				1000			82.0	82.0
036114	115,000					93,150					55-85				1020			80.0	80.0
048071	72,000					59,040					25-55				1000			82.0	82.0
048114	115,000					93,150					30-60				1440			81.0	81.0
048149	150,000					120,000					50-80				1390			80.0	80.0
060071	72,000					59,040					25-55				1220			82.0	82.0
060114	115,000					93,150					35-65				1330			81.0	81.0
060149	150,000					120,000					50-80				1390			80.0	80.0
						208/230/460-3-60 — 2-STAGE GAS HEAT

UNIT		INPUT CAPACITY				OUTPUT CAPACITY						TEMPERATUR				MINIMUM		EFFICIENCY
581B		1st Stage	2nd Stage			1st Stage	2nd Stage					E				HEATING		AFUE (%)		Steady State (%)
581B		1st Stage	2nd Stage			1st Stage	2nd Stage					RISE (°F)				AIRFLOW (CFM)		AFUE (%)		Steady State (%)
												RISE (°F)				AIRFLOW (CFM)
036072		50,000	72,000			41,000		59,040				25-55				1004		82.8		82.0
036115		82,000	115,000			65,600		93,150				55-85				1002		80.0		80.0
048072		50,000	72,000			41,000		59,040				25-55				1004		82.8		82.0
048115		82,000	115,000			66,420		93,150				35-65				1330		81.0		81.0
048150		120,000	150,000			96,000		120,000				50-80				1390		80.4		80.0
060072		50,000	72,000			41,000		59,040				25-55				1004		82.8		82.0
060115		82,000	115,000			66,420		93,150				35-65				1330		81.0		81.0
060150		120,000	150,000			96,000		120,000				50-80				1370		80.4		80.0
072072		50,000	72,000			41,000		59,040				25-55				1220		82.0		82.0
072115		82,000	115,000			66,420		93,150				35-65				1330		81.0		81.0
072150		120,000	150,000			96,000		120,000				50-80				1390		80.0		80.0
090125		90,000	125,000			73,800		102,500				20-50				1900		82.0		82.0
090180		120,000	180,000			98,400		147,600				35-65				1440		82.0		82.0
090224		180,000	224,000			147,600		183,680				45-75				2230		82.0		82.0
102125		90,000	125,000			73,800		102,500				20-50				1900		82.0		82.0
102180		120,000	180,000			98,400		147,600				35-65				1440		82.0		82.0
102224		180,000	224,000			147,600		183,680				45-75				2230		82.0		82.0
120180		120,000	180,000			98,400		147,600				35-65				1440		82.0		82.0
120224		180,000	224,000			147,600		183,680				35-65				2570		82.0		82.0
120250		200,000	250,000			160,000		200,000				40-70				2650		80.0		80.0
150224		180,000	224,000			147,600		183,680				35-65				2570		82.0		82.0
150250		200,000	250,000			160,000		200,000				40-70				2650		80.0		80.0

LEGEND

AFUE — Annual Fuel Utilization Efficiency

NOTE: Capacities for stainless steel heat exchanger units are the same as standard units.

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Bryant 581A/B manual Heating Capacities and Efficiencies 581B036-150cont, Unit Input Capacity Output Capacity Temperatur

581A/B specifications

The Bryant 581A/B is a sophisticated rooftop unit designed for commercial heating and cooling applications, striking a balance between performance, efficiency, and versatility. This unit is engineered to cater to various building sizes and configurations, making it an excellent choice for businesses seeking reliable climate control solutions.

One of the standout features of the Bryant 581A/B is its high efficiency. With SEER ratings reaching up to 14.5, this unit can significantly reduce energy costs while providing optimal performance throughout its operational lifespan. The design incorporates advanced compressor technology, allowing for variable speed operation that not only enhances comfort but also promotes energy savings by adjusting to the real-time demands of the environment.

The Bryant 581A/B also integrates cutting-edge refrigerant technology. Utilizing Puron refrigerant, it adheres to current environmental standards, minimizing its impact on ozone depletion while maximizing cooling performance. This commitment to sustainability is complemented by energy-efficient components, including high-efficiency coils and fan motors, which further optimize energy consumption.

In terms of construction, the Bryant 581A/B is built to withstand the rigors of outdoor installation. The unit features a rugged cabinet design with durable, corrosion-resistant materials, ensuring long-term reliability even in challenging weather conditions. Additionally, the easily accessible components simplify maintenance, reducing downtime for businesses.

The functionality of the Bryant 581A/B extends beyond mere cooling and heating. It is equipped with advanced control systems that can be interfaced with building management systems, allowing for seamless integration and enhanced control over indoor climate. This technology provides operators with the ability to monitor and adjust settings remotely, ensuring a comfortable indoor environment while optimizing energy use.

Noise reduction is another important characteristic of the Bryant 581A/B. The unit is designed with sound-dampening features, making it suitable for applications where low noise levels are a priority, such as retail spaces or office buildings.

Overall, the Bryant 581A/B is a robust solution for businesses seeking efficient, reliable, and flexible climate control. Its combination of advanced technology, durable construction, and user-friendly features make it a leading choice in the commercial HVAC market.

Contents

581A155,180 FEATURES/BENEFITSSizes 579F180-216Table of Contents FEATURES/BENEFITS FEATURES/BENEFITS 580F E V 060 120 N KB Model Number Nomenclature580F036-150 Standard and Medium Efficiency 3 to 121/2 Tons 581B036-150 High Efficiency 3 to 121/2 Tons580F E V 180 275 - C B Model Number Nomenclature 579F180-300580F180-300 579F E V 180 230 - C BA 2 5 0 - a Model Number Nomenclature 581A155, 180, 181 13 to 15 Tons581A210-300 18 to 25 Tons 581A E 180 230 - C BARI* Capacity Ratings 580F036-151 Unit ARI* Capacity RatingsRise F Airflow CFM Capacity Airflow CFMUnit Nominal Cooling Total SEER† Sound Rating Iplv Unit Input Capacity Output Capacity TemperatureARI* Capacity Ratings 581B036-150 Heating Capacities and Efficiencies 581B036-150Heating Heating Capacities and Efficiencies 581B036-150contUnit Input Capacity Output Capacity Temperatur AIR Quantity Limits LOW Outdoor Temperature Operating Limits FARI* Capacity Ratings 579F180-300 Heating Capacities and Efficiencies 579F180-300AIR Quantity Limits Cooling ARI* Capacity Ratings 580F180-300Heating Capacities and Efficiencies 580F180-300 Heating Capacities and Efficiencies 581A155-180 LOW Outdoor AIR Temperature Cooling Operation LimitsARI* Capacity Ratings 581A155,180 Heating Capacities and Efficiencies 581A210-300 ARI* Capacity Ratings 581A210-300Option ACCESSORY† Options and Accessories 581B036-150 and 580F036-151579F180-300, 580F180-300, and 581A155-181 Options and Accessories581A210-300 Options and Accessories Unit Size 580F Physical Data 580F036-073151 Furnace Section Physical Data 580F090,120,150 Units LOSS-OF-CHARGE LOW-PRESSURE Ashrae 90.1 Compliant Units 580F036-151Physical Data 580F091,103,121,151 Units Ashrae 90.1 Compliant Units Base Unit Dimensions 580F036-072 Base Unit Dimensions 580F073 Base Unit Dimensions 580F090,120,150 Base Unit Dimensions 580F091,103,121,151 Roof Curb Accessory Dimensions 580FUnit Size Accessory CRRFCURB001A01 ALT Accessory Drain GAS Power Control PKG. Accy HoleRoof Curb Details Accessory Dimensions 580FDetermine NET Cooling Capacity Selection Procedure with 580F060 exampleII Select Unit Based on Required Cooling Capacity Entering AIR DRY-BULB Temp F Performance DataCooling Capacities SHCCooling Capacities Performance DataFactor Bypass Entering AIR DRY-BULB Temp F580F151 121/ Tons Temp F FAN Performance Vertical Discharge Units 580F048 4 Tons HIGH-STATIC Motor Belt Drive FAN Performance Vertical Discharge Units580F048 4 Tons Standard Motor Direct Drive 580F048 4 Tons Alternate Motor Belt Drive580F060 5 Tons Standard Motor Direct Drive 580F060 5 Tons SINGLE-PHASE, Alternate Motor Belt Drive580F060 5 Tons HIGH-STATIC Motor Belt Drive 580F060 5 Tons THREE-PHASE, Alternate Motor Belt Drive580F072,073 6 Tons HIGH-STATIC Motor Belt Drive 580F072,073 6 Tons Standard Motor Belt Drive584 580F090,091 71/2 Tons Standard Motor Belt Drive505 531580F090,091 71/2 Tons Alternate Motor Belt Drive 580F090,091 71/2 Tons HIGH-STATIC Motor Belt Drive 580F103 81/2 Tons Standard Motor Belt DRIVE* 580F103 81/2 Tons Standard Motor Belt Drive580F103 81/2 Tons HIGH-STATIC Motor Belt DRIVE* 580F103 81/2 Tons HIGH-STATIC Motor Belt Drive958 962978 942580F120 10 Tons Alternate Motor Belt Drive 786 836 847 1016 905 1204 958 726 656 793 822 853 997 910746 713 811 883 870 1062 926 766 773 829 947 887 1131 942580F121 10 Tons Standard Motor Belt Drive 580F121 10 Tons Alternate Motor Belt DRIVE* Airflow 580F121 10 Tons Alternate Motor Belt Drive949 1103 798 961 775828 1030 787804 580F150,151 121/ Tons Standard Motor Belt Drive789 848580F150,151 121/ Tons Alternate Motor Belt Drive FAN Performance Horizontal Discharge Units 1600 1189 1191 1700 1800 1900 2000 Bhp FAN Performance Horizontal Discharge UnitsAirflow Low Speed Medium Speed High Speed 208V 230, 460, 575 Bhp Brake Horsepower Input to Fan Performance Data FAN Performance Horizontal Discharge Units 561 484681 509894 901708 7661488 11191293 13883100 637 1046 2189 17831912 2047580F120,121 10 Tons Standard Motor Belt Drive 580F120,121 10 Tons Alternate Motor Belt Drive 580F120,121 10 Tons HIGH-STATIC Motor Belt Drive 990 835580F150,151 121/ Tons Alternate Motor Belt Drive Airflow Component CFM Outdoor Sound Power Total UnitSound Weighted Octave Bands Unit 580F Rating General Notes for FAN Performance Data TablesAltitude COMPENSATION* 580F036-073 FAN RPM AT Motor Pulley SETTINGS* 580F036-073FAN RPM AT Motor Pulley SETTINGS* 580F090-151 Altitude COMPENSATION* 580F036-073 Standard UnitsEVAPORATOR-FAN Motor Efficiency Optional Power Exhaust580F036 Continuous BHP Operating Watts AMP Draw EVAPORATOR-FAN Motor PerformanceUnit 580F EVAPORATOR-FAN Maximum Acceptable Power Exhaust Options Electrical Data Power Exhaust Electrical Data71/2 Ton Electrical DataUnit Size Nominal IFM Voltage Range 150 580F090, 460-3-60 Shown Typical Wiring Schematics 580F036-151EconoMi$er2 Wiring 580F036-151 Units Typical Wiring Schematics 580F036-151EconoMi$er IV Wiring 580F036-151 Units Non-Fused Disconnect Optional Sizes 580F036-151 Typical Wiring Schematics 580FConvenience Outlet Optional Sizes 580F036-151 Horizontal Discharge Ducting Typical Piping and Wiring 580F036-151Vertical Discharge Ducting Nominal Capacity Physical Data 581B036-072Unit Size 581B 581B036-150 Physical Data 581B090-150 Med 150Base Unit Dimensions 581B036-072 Corner Weight Base Unit Dimensions 581B090-150Accessory Dimensions 581B036-072 Accessory Dimensions 581B090-150 Selection Procedure With 581B048 Example 150 Cooling CAPACITIES, Standard UnitsCooling CAPACITIES, Standard Units 581B120 10 Tons SHC 581B036 3 Tons Subcooling Mode581B036 3 Tons HOT GAS Reheat Mode 581B048 4 Tons HOT GAS Reheat Mode 581B048 4 Tons Subcooling Mode2500/0.13 Condenser Air Entering Evaporator Ewb F Edb 581B060 5 Tons Subcooling Mode581B060 5 Tons HOT GAS Reheat Mode 1500/0.08581B072 6 Tons HOT GAS Reheat Mode 581B072 6 Tons Subcooling ModeCondenser 581B090 71/2 Tons Subcooling Mode581B036 AIR ENT60% Relative Edb 581B102 81/2 Tons Subcooling Mode581B102 81/2 Tons HOT GAS Reheat Mode Wet Bulb CondenserCondenser Air Entering Evaporator Ewb F 581B120 10 Tons Subcooling Mode581B120 10 Tons HOT GAS Reheat Mode 3000/0.03 3200/0.033750 4300 5000 6250 581B150 121/2 Tons Subcooling Mode581B150 121/2 Tons HOT GAS Reheat Mode General Notes for FAN Performance Data Tables 581B036 3 Tons Standard Motor Belt Drive581B048 3 Tons HIGH-STATIC Motor Belt Drive 581B048 4 Tons HIGH-STATIC Motor Belt Drive 581B048 4 Tons Standard Motor Belt Drive581B060 5 Tons Standard Motor Belt DRIVE* THREE-PHASE Units 581B060 5 Tons Standard Motor Belt DRIVE* SINGLE-PHASE Units581B072 6 Tons Standard Motor Belt Drive 581B060 5 Tons HIGH-STATIC Motor Belt Drive581B072 6 Tons HIGH-STATIC Motor Belt Drive 581B090 71/2 Tons Standard Motor Belt Drive 581B090 71/2 Tons HIGH-STATIC Motor Belt Drive 581B102 81/2 Tons Standard Motor Belt Drive 581B102 81/2 Tons HIGH-STATIC Motor Belt Drive 581B120 10 Tons Standard Motor Belt Drive 581B120 10 Tons HIGH-STATIC Motor Belt Drive 581B150 121/2 Tons Standard Motor Belt Drive 581B036 3 Tons HIGH-STATIC Motor Belt Drive 1500 740 382 Rpm Bhp Watts 1200 643 234 7621300 675 277 1400 707 326581B060 5 Tons Standard Motor Belt DRIVE* THREE-PHASE Units 581B072 6 Tons Standard Motor Belt Drive Cfm Rpm Bhp Watts 1800 10741497 2700 1280 1660581B090 71/2 Tons Standard Motor Belt Drive 581B090 71/2 Tons HIGH-STATIC Motor Belt Drive 581B102 81/2 Tons Standard Motor Belt Drive 581B102 81/2 Tons HIGH-STATIC Motor Belt Drive 917 818878 9071239 3900 705 1269 773 1503581B120 10 Tons HIGH-STATIC Motor Belt DRIVE* 1230581B150 121/2 Tons Standard Motor Belt Drive 4600 807 19755900 581B150 121/2 Tons Standard Motor Belt DRIVE*Unit Motor Pulley Turns Open Altitude COMPENSATION* 581B036-072Altitude COMPENSATION* 581B090-150 Component CFM Outdoor Sound Power Total UnitUnit Sound Octave Bands Rating Unit Size 581B EFFICIENCY%129 Performance Data 581B036-150 Power Exhaust Power RequirementsPower Exhaust Amps AT 230 Mocp Size Fans Running 150 581B036Unit Maximum Phase Continuous BHPEVAPORATOR-FAN Motor Performance Standard Motor EVAPORATOR-FAN Motor Performance HIGH-STATIC Motor090-150 036-072FLA MCA Mocp LRA Electrical Data 581B036-150 Units121/2 Tons 581B036-150 UnitsSizes 036-150 581B090, 460-3-60 Shown Typical Wiring Schematics 581BEconoMi$er2 Wiring 581B036-150 Units Typical Wiring Schematics 581BEconoMi$er IV Wiring 581B036-150 Units Non-Fused Disconnect Optional Sizes 581B036-150 Convenience Outlet Optional Sizes 581B036-150Typical Piping and Wiring 581B036-150 Part 2 Products Guide Specifications 580F036-151 and 581B036-150580F036-151 and 581B036-150 Part 1 General580F036-150 and 581B036-150 141 142 143 Unit 579F Physical Data 579F180-300300 579F180-300 Operating and Rigging WeightsOptions and Accessories Weight AddersUnit STD Unit Economizer Corner DIM a DIM B DIM C Weight Base Unit Dimensions 579F180,216300-579F180 Base Unit Dimensions 579F240,300CRRFCURB011A00 Accessory Dimensions 579F180-300Horizontal and Vertical Roof Curbs 579F180-300 PKG. NO. REF Curb Description Height CRRFCURB010A00Accessory Curb Description Package no Height CRRFCURB013A00 Accessory Dimensions 579F180-300Horizontal Supply/Return Adapter Installation 579F180-300 Barometric Relief/Power ExhaustFactory-Installed Non-Fused Disconnect Accessory DimensionsFactory-Installed Convenience Outlet Selection Procedure With 579F180 Example Performance Data 579F Performance Data 579F 154 155 156 157 158 159 FAN Performance 579F180-300 Units FAN Performance 579F180-300 Units 162 Maximum Heating Value Fan Performance Using Accessory Power Exhaust 579F180-300Altitude Compensation Elevation Natural GAS Orifice SIZE†Altitude Compensation 579F180-300 Outdoor Sound PowerACCESSORY/FIOP Static Pressure in. wg* 579F180-300 FAN RPM AT Motor Pulley SettingsContinuous Operating AMP Draw BHP EVAPORATOR-FAN Motor DataMaximum Unit Acceptable MaximumRLA LRA Unit Nominal Voltage Compressor OFM IFM Power Combustion579F180 Range Exhaust FAN Motor Supply167 Typical Wiring Schematics 579F579F240, 208/230 V Shown 300 579F180 IAQ -Indoor Air Quality SAT Supply Air Temperature Typical Wiring Schematics 579FEconoMi$er IV Wiring 579F180-300 Units EconoMi$er2 Wiring 579F180-300 UnitsA48-6005 Non-Fused Disconnect Optional 579F180-300NEC National Electrical Code Typical Piping and Wiring 579F180-300579F180 Shown TXV Physical Data 580F180-300580F180-300 174 Base Unit Dimensions 580F180580F180 Base Unit Dimensions 580F240 176 Base Unit Dimensions 580F300580F180-240 Accessory Dimensions 580F180-240300-580F180 Horizontal and Vertical Roof Curbs178 Accessory Dimensions 580F300Horizontal Supply/Return Adapter Installation 580F180-240 180 Selection Procedure With 580F240 Example 182 183 FAN Performance 580F180-300 Units 7200 7500 580F180360* FAN Performance 580F180-300 Units580F180360 580F180360*186 580F240275 20 TONS* 580F240275 20 TonsCfm Rpm Watts Bhp Bhp Rpm Watts 000000 500 10,000 580F240360 20 Tons580F240360 20 TONS* 580F180 Performance Data cont\Elevation Maximum Heating Value Fan Performance Using Accessory Power Exhaust 580F180-300Unit Sound Weighted Octave Bands Altitude Compensation 580F180-300ACCESSORY/FIOP Static Pressure in. wg* 580F180-300 FLA Exhaust FAN Motor SupplyRLA LRA FLA LRA MCA MocpTypical Wiring Schematic 580F180, 460-3-60 Shown Typical Wiring Schematics 580FIAQ EconoMi$er IV Wiring 580F180-300EconoMi$er2 Wiring 580F180-300 ECBNon-Fused Disconnect Optional 580F180-300 Typical Piping and Wiring 580F180-300 Unit 581A Physical Data 581A155,180Unit 581A Physical Data 581A210-300581A155-300 High Range Physical DataLOW Range Unit Operating and Rigging Weights 581A155,180Options and Accessories 581A155,180 Weight Adders Options and Accessories 581A210-300 Weight Adders300-581A155 Base Unit Dimensions 581A155,180202 Base Unit Dimensions 581A210-300ALL Accessory Dimensions 581A155,180581A155,180 PKG. NO. REF Curb Height Description CRRFCURB010A00Horizontal Supply/Return Adapter Installation 581A155,180 205 206 Accessory Dimensions 581A210-300Determine NET Cooling Capacities Selection ProcedureEntering WET-BULB F CFM Cooling Capacities Standard UnitsCooling Capacities Standard Units 210 211 212 Cooling CAPACITIES, Units with HOT GAS Reheat Option 581A181 15 Tons Unit with HOT GAS Reheat in Cooling ModeCooling CAPACITIES, Units with HOT GAS Reheat Option 581A210 18 Tons Unit with HOT GAS Reheat in Cooling Mode300 581A240 20 Tons Unit with HOT GAS Reheat in Cooling Mode216 581A300 25 Tons Unit with HOT GAS Reheat a in REHEAT, B OFF 581A300 25 Tons Unit with HOT GAS Reheat in Cooling Mode218 219 Available External Static Pressure in. wg Cfm 581A180 15 Tons Low Heat Units Airflow7200 7500 581A180 15 Tons High Heat Units Airflow8500 Rpm Watts Bhp 35007000 581A210 18 Tons Medium Heat Units* 581A210 18 Tons Medium Heat Units224 Rpm Watts Bhp 000 581A240 20 Tons Medium Heat Units* 581A240 20 Tons Medium Heat Units227 11,000 581A300 25 Tons Low Heat UnitsRpm Watts Bhp 500 10,50011,000 11,500 12,000 12,500 581A300 25 Tons Medium Heat Units12,500 581A300 25 Tons Medium Heat Units* 581A300 25 Tons High Heat Units 581A210 18 Tons Low Heat Units* 581A210 18 Tons Low Heat Units581A210 18 Tons Medium Heat Units* 581A210 18 Tons High Heat Units* 581A210 18 Tons High Heat Units581A240 20 Tons Low Heat Units* 581A240 20 Tons Low Heat Units581A240 20 Tons Medium Heat Units* 581A240 20 Tons High Heat Units* 581A240 20 Tons High Heat Units581A300 25 Tons Low Heat Units* 12,000 12,500581A300 25 Tons Medium Heat Units* 581A300 25 Tons Medium Heat Units581A300 25 Tons High Heat Units* Altitude Compensation 581A155,180 Altitude COMPENSATION* 581A155,180Altitude Compensation 581A210-300 Evaporator FAN Motor Performance 581A155,180 ACCESSORY/FIOP Static Pressure in. wg* 581A155,180FAN RPM AT Motor Pulley SETTINGS* 581A155,180 Indoor Sound Data Total Unit 581A155,180Drive Motor Pulley Turns Open FAN RPM AT Motor Pulley SETTINGS* 581A210-300Unit ARI Weighted Octave Bands Rating Watts BHP Evaporator FAN Motor Specifications 581A210-300ACCESSORY/FIOP Static Pressure in. wg 581A210-300 Unit Drive Orientation Motor Nominal Voltage MAX EfficiencyHacr Electrical Data 581AElectrical Data 581A155,180 FLAElectrical Data 581A210-300 Without Convenience Outlet 581A155246 581A155, 460-3-60 Shown Typical Wiring Schematics 581AEconoMi$er2 Wiring 581A155,180 EconoMi$er IV Wiring 581A155,180Typical Piping and Wiring 581A 581A155 Shown 579F/580F/581A155-300 251 252 253 254 581A210-300 Guide Specifications 581A210-300 UnitsGuide Specifications 581A210-300 Units 257 258 Heating, Units With Economizer ControlsOperating SEQUENCE, Size 036-151 Units Controls Heating, Units Without Economizer Operating SEQUENCE, 581A210-300262 Condenser Coil Protection Wiring of Outdoor-Air ThermostatApplication Data Concentric Duct Distribution Concentric Duct Details Application DataConcentric Duct Details Condenser Coil Protection Applications265 Enthalpy Sensor ECONOMI$ER IV Sensor Usage ChartEconomizer Changeover Curves 267 IndexSpecifications Subject to Change Without Notice