Bryant 581B installation instructions Outdoor-Air Thermostat/Enthalpy Control Installation

Page 15

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

REV

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

MINIMUM

 

 

 

 

 

 

 

 

 

 

 

B

 

OPEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

POSITION

 

 

 

 

 

 

 

 

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C

1

 

 

 

 

 

 

 

 

 

 

 

 

 

S

O

TR

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D

S

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

 

 

 

T

 

3

 

1

 

 

 

 

 

 

 

 

 

 

P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

T1

 

4

 

2

 

 

5

 

 

 

 

 

 

 

P1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

30

 

 

D

 

AT

CONTACT

OR

CONTACTS

 

TR

 

 

 

 

 

 

 

 

 

 

UH%

 

RUSH

 

 

 

 

 

 

 

 

 

 

 

 

ID IM

90

 

 

UNPOWERED

 

 

 

 

 

 

 

 

 

50

 

 

 

 

C

–

24VAC

 

 

 

 

 

 

 

 

 

 

YT

 

60

70

 

 

 

 

 

 

 

 

ENTHALPY

 

 

 

 

 

60

 

 

 

CW

 

5A

ATE

 

3

 

 

 

 

 

 

 

 

DAMPER

 

 

 

 

2

 

 

 

 

 

OUTDOOR

55

 

 

OPEN

 

B

SETPOINTS

 

RATINGS:

ST

SHOWN

 

24VAC

 

 

 

 

 

 

 

 

 

 

3 .

 

HIGH

 

 

 

 

 

 

 

 

 

 

 

 

 

A

 

 

1

 

IN

 

 

 

 

 

 

 

 

75

 

 

 

CLOSED DAMPER

 

mA

RUN,

 

 

 

TR1

CONTROL

 

 

 

 

F

 

 

 

 

VDC

 

 

1

 

 

 

 

TEMP

65 70

 

 

 

 

 

 

MIN

 

ENTHALPY

 

 

 

 

 

 

 

°

 

 

 

 

 

 

CCW

11

IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

–

.

3

 

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

AT

5A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

 

 

 

80

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

85

 

REV.

97-3672

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 23 Ð Outdoor-Air Thermostat/Enthalpy

Control Installation

LEGEND

OAT Ð Outdoor-Air Thermostat

NOTE: See unit wiring diagram for details.

Fig. 24 Ð Wiring Connections for Outdoor-Air

Thermostat

Fig. 25 Ð Varislide™ Economizer Barometric Relief

Damper Characteristics

Save panels and screws. Remove optional economizer so the outdoor-air damper hood package can be re- moved from the ®lter section. See Fig. 16.

3.Assembly outdoor-air hood top and side plates as shown in Fig. 17. Install seal strips on hoop top and sides. Put aside screen retainer and retainer screw for later assembly. Do not attach hood to unit at this time.

4.Slide economizer into unit and secure with screws. See Fig. 26.

NOTE: Be sure to engage rear economizer ¯ange under tabs in vertical return-air opening.

5.Insert economizer plug into economizer harness. Re- move tape from barometric relief damper. See Fig. 26.

6.If ventilation is not required, proceed to Step 7. If ven- tilation air is required, perform the following:

a.Make sure the factory-installed jumper is in place across terminals P and P1 on the economizer logic module. T and T1 should be disconnected during adjustment.

b.The 2 potentiometers with slots for adjustment are located on the face of the economizer logic module. Turn the lower potentiometer fully clockwise. The dampers should be fully closed. Turn the potenti- ometer gradually counterclockwise until the de- sired position is reached.

c.Connect T and T1 to the 24V power supply.

Ð15Ð

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Contents Important Ð Read Before Installing ContentsSafety Considerations Standard Varislide Corner Unit Economizer Weight Threaded Wire Required Sizes Conduit USE MaximumConnection Sizes Roof Curb Mount InstallationLocate the Unit ClearanceUnit Size AccessoryService Plate Sizes Connector Unit Roof Curb581B 036 Unit MAX Dimensions WeightII. Unit Duct Connections III. RIG and Place UnitBase Unit 581B SpecicationsGas Piping Fig Install Flue HoodIV. Field Connections External Trap Condensate DrainNominal Internal Length of PIPE, FT Iron Pipe Diameter Size Electrical Connections Field Duct ConnectionsIFC CompEquip GNDHacr Power Supply Disconnect Voltage Range FAN MotorNominal Voltage Combustion Minimum Unit Compressor RLA LRA FLA MCA MOCP²Thermostat List Ð Electrical Data Units with Electrical Convenience OutletOptional Varislide Economizer Typical Access Panel Locations Accessory InstallationExample Optional Parablade EconomizerOutdoor-Air Thermostat/Enthalpy Control Installation Parablade Economizer Installed in Unit START-UP Compressor Rotation PRE-START-UPII. Heating Section START-UP and Adjustments Orifices Rated Gas Inputs at Indicated Manifold PressuresAltitude Compensation* Ð Units 581B036-072 PressureRollout Switch Air¯ow and Temperature RiseSafety Check of Limit Control Limit SwitchesUnit Controls III. Cooling Section START-UP and AdjustmentsChecking and Adjusting Refrigerant Charge Checking Cooling Control OperationBelt Drive Motors IV. Indoor Airflow and Airflow AdjustmentsFan Rpm at Motor Pulley Settings Ventilation SequenceEvaporator Fan Motor Data 581B048 Air Delivery Ð Vertical Discharge Units 581B036 Air Delivery Ð Vertical Discharge Units581B072 Air Delivery Ð Vertical Discharge Units 581B060 Air Delivery Ð Vertical Discharge Units581B048 Air Delivery Ð Horizontal Discharge Units 581B036 Air Delivery Ð Horizontal Discharge Units581B072 Air Delivery Ð Horizontal Discharge Units 581B060 Air Delivery Ð Horizontal Discharge UnitsService Cleaning Care and MaintenanmceAIR Filter IV. Economizer Adjustment II. LubricationRefrigerant Charge VI. Main Burners VII. Flue GAS PassagewaysVIII. COMBUSTION-AIR Blower Burner Ignition IX. Limit SwitchLED Error Code Description LED Indication Error Code DescriptionRemoval and Replacement of Gas Train See Cleaning and AdjustmentXI. Replacement Parts Problem Cause Remedy TroubleshootingLED Error Code Service Analysis Heating Service AnalysisCooling Service Analysis Varislide Economizer Troubleshooting OATSAT Or close according to Parablade Economizer TroubleshootingDamper does not open Damper does not closeTypical Wiring Schematic and Component Arrangement Component Arrangement Page III. START-UP Electrical START-UP ChecklistTemperatures Preliminary Information
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581B specifications

The Bryant 581B is an innovative and highly efficient gas furnace that stands out in the HVAC market for its remarkable performance, reliability, and advanced features. Designed to provide optimal heating comfort, the Bryant 581B is perfect for homeowners seeking both quality and energy efficiency.

One of the main features of the Bryant 581B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating. With an AFUE rating of up to 80%, this gas furnace maximizes energy usage, ensuring that a significant portion of the fuel is converted into heat for your home. This efficiency not only translates into lower energy bills but also reduces the carbon footprint, making it an environmentally friendly choice.

The furnace is equipped with a multi-speed blower motor that enhances comfort by providing consistent airflow throughout the home. This technology adjusts to different heating demands, ensuring that every room reaches the desired temperature without the discomfort of hot or cold spots. The quiet operation of the blower motor also adds to the overall comfort, creating a peaceful home environment.

Another notable characteristic of the Bryant 581B is its durable construction. It features a robust heat exchanger built from high-quality materials, designed to withstand the rigors of daily use. The compact design of the furnace allows it to fit seamlessly into various spaces, making it an ideal choice for both new installations and replacement projects.

The Bryant 581B also comes with advanced safety features, including a self-diagnostic control board that monitors the system's performance. This feature allows for easy troubleshooting and maintenance, prolonging the life of the furnace. Additionally, the furnace is equipped with an induced draft blower that enhances venting efficiency and safety by ensuring that combustion gases are safely expelled from the home.

For homeowners looking for enhanced control, the Bryant 581B is compatible with a range of smart thermostats, providing the ability to monitor and adjust heating settings remotely. This integration with smart technology ensures that homeowners can maintain their desired comfort levels while maximizing efficiency.

In conclusion, the Bryant 581B gas furnace is a top-tier option that combines efficiency, durability, and modern technology. With its high AFUE rating, multi-speed blower, and advanced safety features, it promises to deliver unparalleled comfort and peace of mind for years to come. Whether for a new build or an upgrade, the Bryant 581B is an investment that pays off in both comfort and savings.
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