CONTROLS

OPERATING SEQUENCE

Heating — On a call for heating, terminal “W” of the thermostat is energized, starting the induced-draft motor. When the hall- effect sensor on the induced-draft motor senses that it has reached the required speed, the burner sequence begins. This function is performed by the integrated gas control (IGC). The evaporator fan motor is energized 45 seconds after flame is es- tablished. When the thermostat is satisfied and “W” is de- energized, the burners stop firing and the evaporator fan motor shuts off after a 45-second time-off delay.

Cooling — When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat, the thermostat completes the circuit between thermostat terminal R to terminals Y and G. These completed circuits through the ther- mostat connect contactor coil (C) (through unit wire Y) and blow- er relay coil (BR) (through unit wire G) across the 24-v secondary of transformer (TRAN).

The normally open contacts of energized contactor (C) close and complete the circuit through compressor motor (COMP) to con- denser (outdoor) fan motor (OFM). Both motors start instantly.

The set of normally open contacts of energized relay BR close and complete the circuit through evaporator blower (indoor) fan motor (IFM).

NOTE: Once the compressor has started and then has stopped, it should not be started again until 5 minutes have elapsed.

The cooling cycle remains “on” until the room temperature drops to a point that is slightly below the cooling control setting of the room thermostat. At this point, the thermostat “breaks” the circuit between thermostat terminal R to terminals Y and G. These open circuits de-energize contactor coil C and relay coil BR. The condenser and compressor motors stop. After a 30-second de- lay, the blower motor stops. The unit is in a “standby” condition, waiting for the next “call for cooling” from the room thermostat.

The ICM FIOP indoor blower operation with a call for fan oper- ation (G) in cooling mode will perform by the on/off delay profile selected on the Easy Select™ circuit board.

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Bryant 583B manual Controls, Operating Sequence

583B specifications

The Bryant 583B is an advanced, high-efficiency gas furnace designed to provide exceptional heating performance and reliability. With a focus on comfort and energy efficiency, this model stands out in the residential heating market.

One of the main features of the Bryant 583B is its impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 95%. This means that the furnace converts up to 95% of the fuel it consumes into usable heat. As a result, homeowners can expect lower energy bills and reduced environmental impact due to decreased carbon emissions.

The Bryant 583B is equipped with a modulating gas valve that allows for precise control of the heating output. This technology enables the furnace to adjust its running capacity based on the heating demands of your home. Instead of operating at a single, high setting, the furnace runs at the required level to maintain the desired temperature, delivering consistent comfort while maximizing efficiency.

Another noteworthy characteristic of the 583B is its two-stage operation. This feature allows the furnace to operate at a lower stage for mild weather, which reduces energy consumption and minimizes noise levels. During colder conditions, it can switch to a high stage for increased heating capacity. This dual approach not only enhances comfort but also prolongs the lifespan of the unit by reducing wear and tear.

In terms of construction, the Bryant 583B is built with durable materials and a robust cabinet, which ensures longevity and resilience over time. It also comes with a quiet operation feature, minimizing disturbances while maintaining a comfortable indoor environment.

The unit is compatible with Bryant's advanced communication technology, enabling seamless integration with smart thermostats. This addition allows homeowners to monitor and control their furnace remotely, optimizing energy usage even further.

In summary, the Bryant 583B furnishes an outstanding combination of efficiency, reliability, and user-friendly technologies. Its modulating gas valve, two-stage operation, and high AFUE rating collectively ensure that customers enjoy a comfortable home environment while significantly reducing energy costs. As energy-conscious choices become increasingly crucial, the Bryant 583B stands ready to meet the challenges of modern heating needs.