Bryant 581J installation instructions Installation Instructions

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581J

SINGLE PACKAGE ROOFTOP

GAS HEATING/ELECTRIC COOLING UNIT

SIZES 07, 08, 09 & 12 with PURONR (R-410A) REFIRGERANT

Installation Instructions

NOTE: Read the entire instruction manual before starting the installation

TABLE OF CONTENTS

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 2 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Jobsite Survey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Step 1 - Plan for Unit Location . . . . . . . . . . . . . . . . . . 7 Roof Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Step 2 - Plan for Sequence of Unit Installation . . . . . . 8 Curb-Mount Installation . . . . . . . . . . . . . . . . . . . . . 8 Pad-Mount Installation . . . . . . . . . . . . . . . . . . . . . . 8 Frame-Mount Installation . . . . . . . . . . . . . . . . . . . . 8 Step 3 - Inspect Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Step 4 - Provide Unit Support . . . . . . . . . . . . . . . . . . . 8 Roof Curb Mount . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Slab Mount (Horizontal Units Only) . . . . . . . . . . . 8

Alternate Unit Support

(In Lieu of Curb or Slab Mount) . . . . . . . . . . . . . . 8 Step 5 - Field Fabricate Ductwork . . . . . . . . . . . . . . . 11 Step 6 - Rig and Place Unit . . . . . . . . . . . . . . . . . . . . 11 Positioning on Curb . . . . . . . . . . . . . . . . . . . . . . . 12 Step 7 - Convert to Horizontal & Connect Ductwork . . . 12 Step 8 - Install Outside Air Hood . . . . . . . . . . . . . . . 12

Economizer and Two Position Damper Hood

Package Removal and Setup — Factory Option . . 12 Economizer Hood and Two-Position Hood . . . . . 13 Step 9 - Install Flue Hood . . . . . . . . . . . . . . . . . . . . . 13 Step 10 - Install Gas Piping . . . . . . . . . . . . . . . . . . . . 13

Factory-Option Thru-Base Connections

(Gas Connections) . . . . . . . . . . . . . . . . . . . . . . . . . 14 Step 11 - Install External Condensate Trap and Line . . 16 Step 12 - Make Electrical Connections . . . . . . . . . . . 17 Field Power Supply . . . . . . . . . . . . . . . . . . . . . . . . 17 Units with Factory-Installed Disconnect . . . . . . . 17 Units without Factory-Installed Disconnect . . . . 17 All Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Convenience Outlets . . . . . . . . . . . . . . . . . . . . . . . 18

Factory-Option Thru-Base Connections

(Electrical Connections) . . . . . . . . . . . . . . . . . . . . 19

Units without Thru-Base Connections . . . . . . . . . 19 Field Control Wiring . . . . . . . . . . . . . . . . . . . . . . . 19 Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Unit without Thru-Base Connection Kit . . . . . . . 20 Heat Anticipator Settings . . . . . . . . . . . . . . . . . . . 20

Perfect Humidityt Control Connections . . . . . . . . 21 Perfect Humidity - Space RH Controller . . . . . . . 21 RTU Open Control System . . . . . . . . . . . . . . . . . . . 23 Supply Air Temperature (SAT) Sensor . . . . . . . . . 26 Outdoor Air Temperature (OAT) Sensor . . . . . . . 26 EconoMi$er2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Field Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Space Temperature (SPT) Sensors . . . . . . . . . . . . 27 Indoor Air Quality (CO2) Sensor . . . . . . . . . . . . . 28 Outdoor Air Quality Sensor . . . . . . . . . . . . . . . . . 28 Smoke Detector/Fire Shutdown (FSD) . . . . . . . . . 29 Space Humidity Sensor or Humidistat . . . . . . . . . 29 Connecting Discrete Inputs . . . . . . . . . . . . . . . . . . 30 Communication Wiring - Protocols . . . . . . . . . . . . 31 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Local Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 RTU Open Troubleshooting . . . . . . . . . . . . . . . . . 32 Outdoor Air Enthalpy Control . . . . . . . . . . . . . . . . . 33 Differential Enthalpy Control . . . . . . . . . . . . . . . . 33 Return Air Enthalpy Sensor . . . . . . . . . . . . . . . . . 34 Smoke Detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Sensor Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Smoke Detector Locations . . . . . . . . . . . . . . . . . . . . 35 Supply Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Return Air without Economizer . . . . . . . . . . . . . . 35 Return Air with Economizer . . . . . . . . . . . . . . . . . 35 Step 13 - Adjust Factory-Installed Options . . . . . . . . 40 Step 14 - Install Accessories . . . . . . . . . . . . . . . . . . . 40

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Contents Installation Instructions Safety Considerations Unit Dimensional Drawing Sizes Unit Dimensional Drawing Sizes 07-09 Unit Dimensional Drawing Size Unit Dimensional Drawing Size 12 Plan for Unit Location Operating WeightsRoof Mount Units LB KGInspect Unit Plan for Sequence of Unit InstallationProvide Unit Support Roof Curb Details Sizes Roof Curb Details Size Field Fabricate Ductwork MAX Weight Dimensions UnitRig and Place Unit Install Outside Air Hood Ductwork when requiredConvert to Horizontal and Connect Positioning on CurbInstall Gas Piping Install Flue HoodEconomizer Hood and Two-Position Hood Natural Gas Supply Line Pressure Ranges Steel Pipe Spacing of Supports Nominal Diameter DimensionUnit Model Unit Size MIN MAX Gas Line Piping Condensate Drain Pan Side View Install External Condensate Trap and LineUnits Without Factory-Installed Disconnect Field Power SupplyMake Electrical Connections All UnitsConvenience Outlet Location Weatherproof Cover InstallationUnits without Thru-Base Connections Field Control WiringThermostat Unit Connect Primary TransformerField Control Wiring Raceway Heat Anticipator Settings Perfect Humidity Space RH Controller Perfect Humidityt Control ConnectionsTo connect a field-supplied humidistat To connect the Edge Programmable Thermidistat T6-PRH01-AOAT RRS RTU Open Multi-Protocol Control Board RTU Open Control SystemRTU Open System Control Wiring Diagram C11070 RTU Open Controller Inputs and Outputs Supply Air Temperature SAT SensorField Connections Space Temperature SPT SensorsEconoMi$er2 IAQ Sensor SEN J4-2 COM J4-3 24 VAC Relative Humidity Sensors Space or Duct Mounted Space Relative Humidity Sensor Typical WiringConnecting Discrete Inputs Duct Relative Humidity Sensor Typical WiringGeneral Communication Wiring ProtocolsProtocol DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 Baud Rate DS2 DS1RTU Open Troubleshooting Local AccessLEDs Outdoor Air Enthalpy Control PNO 33CSENTHSWLEDs on the RTU Open show the status of certain functions Differential Enthalpy ControlSmoke Detectors WiringReturn Air Enthalpy Sensor SystemSmoke Detector Locations See Completing Installation of Return Air SmokeSupply Air Return Air Detector Shipping Position Unit Wire/Fuse or Hacr Breaker Sizing Data Hacr FLA LRA Brkr Unit NOM IFM Combustion Power No P.EUnbalanced 3-Phase Supply Voltage Install Accessories Adjust Factory-Installed OptionsEconoMi$er IV Occupancy Switch Smoke Detectors
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581J specifications

The Bryant 581J is a high-efficiency gas furnace that exemplifies advanced heating technology and innovative design. Known for its reliability and comfort, the Bryant 581J offers impressive performance features that cater to both residential and commercial heating needs. One of its standout characteristics is the two-stage heating system, which allows the furnace to operate at a lower stage when the heating demand is modest, providing improved comfort and energy efficiency. This feature also minimizes temperature fluctuations, ensuring a more consistent and comfortable indoor environment.

Energy efficiency is a critical aspect of the Bryant 581J. With an annual fuel utilization efficiency (AFUE) rating of up to 96%, this furnace is designed to convert a high percentage of fuel into usable heat, which helps homeowners save on energy bills. The high-efficiency design also contributes to a reduced carbon footprint, aligning with modern environmental concerns.

The Bryant 581J is equipped with technologically advanced features, including the ComfortTech™ control system. This system enables enhanced temperature regulation and integrates easily with smart home systems, allowing homeowners the convenience of remote control through smartphones and tablets. Additionally, the furnace includes an electronically commutated motor (ECM) blower, which optimizes airflow and reduces energy consumption while enhancing the overall comfort level within the space.

Noise reduction is another key characteristic of the Bryant 581J. The furnace is engineered with sound-dampening technology, resulting in quieter operation compared to conventional furnaces. This attention to noise management makes it an appealing choice for residential applications, where peace and tranquility are crucial.

The durable construction of the Bryant 581J ensures longevity and reliability. With a robust cabinet and quality materials, it is built to withstand the rigors of daily operation. Furthermore, the furnace comes with a warranty that provides peace of mind, protecting the investment over the years.

Overall, the Bryant 581J represents a blend of efficiency, advanced technology, and reliable performance. With its high AFUE rating, innovative features, and quiet operation, it stands out in the market as a top choice for anyone seeking a dependable heating solution. Whether for new installations or replacements, the Bryant 581J is designed to meet the heating demands of today's energy-conscious homeowners.
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