Bryant 581A operation manual Contents, Safety Considerations, Installation Provide Unit Support

Page 1

installation, start-up and service instructions

581A

Sizes 155-240

SINGLE PACKAGE ROOFTOP

ELECTRIC COOLING/GAS HEATING UNITS

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION

1-14

I. Step 1 — Provide Unit Support

. . . 1

II. Step 2 — Rig and Place Unit

. . . 3

III. Step 3 — Field Fabricate Ductwork

. . . 7

IV. Step 4 — Make Unit Duct Connections . . . .

. . . 7

V. Step 5 — Install Flue Hood and Wind

 

Baffle

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . 7

VI. Step 6 — Trap Condensate Drain

. . . 8

VII. Step 7

— Install Gas Piping

. . . 8

VIII. Step 8

— Make Electrical Connections . . . .

. . . 8

IX. Step 9

— Make Outdoor-Air Inlet

 

Adjustments

. . . 9

X. Step 10 — Install Outdoor-Air Hood

. . 11

XI. Step 11 — Install All Accessories

. . 13

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-25

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-34

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 35-37

START-UP CHECKLIST. . . . . . . . . . . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical compo- nents. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.

Untrained personnel can perform the 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 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.

WARNING: Before performing service or mainte- nance operations on unit, turn off mail power switch to unit. electrical shock could cause personal injury.

Cancels: II 581A-155-2

II 581A-155-3

 

6/15/99

WARNING:

1.Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury, or loss of life. Refer to the User’s Information Manual provided with this unit for more details.

2.Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

What to do if you smell gas:

1.DO NOT try to light any appliance.

2.DO NOT touch any electrical switch, or use any phone in your building.

3.IMMEDIATELY call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

4.If you cannot reach your gas supplier, call the fire department.

WARNING: Disconnect gas piping from unit when pressure testing at pressure greater than 0.5 psig. Pressures greater than 0.5 psig will cause gas valve damage resulting in hazardous condition. If gas valve is subjected to pressure greater than 0.5 psig, it must be replaced before use. When pressure testing field- supplied gas piping at pressures of 0.5 psig or less, a unit connected to such piping must be isolated by clos- ing the manual gas valve(s).

IMPORTANT: Units have high ambient operating limits. If limits are exceeded, the units will automatically lock the compressor out of operation. Manual reset will be required to restart the compressor.

INSTALLATION

I. STEP 1 — PROVIDE UNIT SUPPORT

A. Roof Curb

Assemble or install accessory roof curb or horizontal supply roof curb in accordance with instructions shipped with this accessory. See Fig. 1 and 2. Install insulation, cant strips, roofing, and counter flashing as shown. Ductwork can be installed to roof curb or horizontal supply roof curb before unit is set in place.

(Instructions continued on page 3.)

Page 1 Page 2
Image 1
Page 1 Page 2
Contents Safety Considerations ContentsInstallation Provide Unit Support Roof Curb Details II. RIG and Place Unit Alternate Unit SupportPositioning Roof MountBase Unit Dimensions 581A155 Base Unit Dimensions 581A240 Unit 581A Physical DataIII. Field Fabricate Ductwork Install Flue Hood and Wind BaffleIV. Make Unit Duct Connections 581A180, 240 Unit ShownField Power Supply VII. Install GAS PipingVI. Trap Condensate Drain VIII. Make Electrical ConnectionsMake OUTDOOR-AIR Inlet Adjustments Field Control WiringManual Outdoor-Air Damper Optional EconomizerFLA LRA MCA Mocp Electrical Data25% Outdoor-Air Section Details Install OUTDOOR-AIR HoodSeal Strip Location Enthalpy Control InstallationMotormaster I Control Installation 581A155 and 180 Only XI. Install ALL AccessoriesIV. Refrigerant Service Ports II. Service ValvesSTART-UP Unit PreparationXII. Accessory Economizer Adjustment VI. Internal WiringVII. Crankcase Heaters VIII. Evaporator FANBhp Brake Horsepower Fan Performance 581A180270 Low Heat Units Fan Performance 581A240270 Low Heat Units 753 915 844 1077 949 1287 1047 753 942 844 1101 949 Fan Performance 581A180360 High Heat Units Fan Performance 581A240360 High Heat Units Accessory/FIOP Economizer Static Pressure in. wg Evaporator Fan Motor SpecificationsFan RPM at Motor Pulley Setting Air Quantity LimitsXIV. Base Unit Operation XIII. GAS HeatService Cleaning II. Lubrication IV. Evaporator FAN Service and ReplacementVI. CONDENSER-FAN Adjustment Belt Tension Adjustment581A155 and 180 Units Fig 581A240 Units FigVIII. Power Failure VII. Economizer AdjustmentIX. Refrigerant Charge XI. Main Burners GAS Valve AdjustmentXII. Filter Drier XIII. Protective DevicesXVII. Diagnostic Leds XVI. Replacement PartsXIV. Relief Devices XV. Control CircuitSpark Gap Adjustment Typical Wiring Schematic and Typical Component Arrangement Typical Wiring Schematic 581A180, 208/230 V Unit Shown Typical Component Arrangement 581A180 Shown Cooling Service Analysis TroubleshootingProblem Cause Remedy Burners will not ignite Heating Service AnalysisIGC Control Heating and Cooling Call for Free Catalog Packaged Service TrainingPage Electrical TemperaturesPressures General
Related manuals
Manual 56 pages 3.06 Kb

581A specifications

The Bryant 581A is a pivotal model in the realm of heating, ventilation, and air conditioning (HVAC) systems, known for its robust performance and energy efficiency. As part of the Bryant product lineup, the 581A offers a blend of innovative technologies combined with reliable engineering, making it a suitable choice for both residential and light commercial applications.

One of the standout features of the Bryant 581A is its outstanding energy efficiency. With a Seasonal Energy Efficiency Ratio (SEER) rating of up to 16, this model meets Energy Star qualifications, ensuring that homeowners can enjoy lower utility bills while helping to reduce their environmental footprint. The efficiency is further enhanced by the unit’s environmentally friendly refrigerant, which not only improves performance but also aligns with modern sustainability standards.

Another key characteristic of the Bryant 581A is its durable construction. Designed to withstand various weather conditions, the unit features a robust cabinet that protects internal components. This durability not only prolongs the lifespan of the system but also minimizes the need for frequent maintenance or repairs. The coil design is optimized for heat transfer efficiency, enhancing the unit's overall performance in both cooling and heating modes.

In terms of technology, the Bryant 581A incorporates advanced control systems that enable precise temperature regulation. The multi-stage cooling capabilities ensure that the system can adapt to varying temperature demands, providing comfort in all seasons. Additionally, the model is compatible with smart thermostats, allowing homeowners to control their HVAC system remotely via smartphone or other connected devices.

Noise reduction is another aspect where the Bryant 581A excels. Equipped with a variable-speed compressor and sound-dampening features, this model operates quietly, minimizing disruption in residential or office environments. This focus on acoustic comfort makes it an ideal choice for those who value a peaceful living or working space.

Overall, the Bryant 581A represents an excellent balance of efficiency, durability, and modern technology. With features aimed at enhancing user comfort and reducing operational costs, it stands out as a reliable solution in the competitive HVAC market. Whether for new installations or replacements, the Bryant 581A is a testament to the brand’s commitment to quality and innovation in home climate control.
Top Page Image Contents