VIII. STEP 8 — ADJUST FACTORY-INSTALLED OPTIONS

A. Disconnect Switch

The optional disconnect switch is non-fused. The switch has the capability of being locked in place for safety purposes.

B. Perfect Humidity™ Dehumidification System

Perfect Humidity system operation can be controlled by field installation of a Bryant-approved humidistat device (Fig. 13), or light commercial Thermidistat™ device (Fig. 14). To install the humidistat device:

1.Route humidistat cable through hole provided in unit corner post.

2.Feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required clearance between high-voltage and low- voltage wiring.

3.Use a wire nut to connect humidistat cable into low- voltage wiring as shown in Fig. 15.

To install Thermidistat device:

1.Route Thermidistat cable through hole provided in unit corner post.

2.Feed the wires through the raceway built into the cor- ner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required clearance between high and low voltage wiring.

3.A field-supplied relay must be installed between the Thermidistat device and the Perfect Humidity circuit (recommended relay: HN612KK324). See Fig. 16. The relay coil is connected between the DEHUM output and C (common) of the unit. The relay controls the Perfect Humidity solenoid valve and must be wired between the Perfect Humidity fuse and the low-pres- sure switch. Refer to the installation instructions included with the Bryant Light Commercial Thermi- distat device for more information.

% RELATIVE HUMIDITY

Fig. 13 — Accessory Field-Installed Humidistat Device

Fig. 14 — Light Commercial Thermidistat Device

LEGEND

C

Contactor (Compressor)

LTLO

Low Temperature Lockout

CB

Circuit Breaker

TRAN

Transformer

CR

Cooling Relay

 

 

Terminal (Unmarked)

 

 

DHR

Dehumidify Relay

 

 

 

 

 

DSV

Discharge Solenoid Valve

 

 

Splice

 

 

HU

Humidistat

 

 

Factory Wiring

 

 

LPS

Low Pressure Switch

 

 

LSV

Liquid Line Solenoid Valve

 

 

Accessory or Optional Wiring

 

 

 

 

Fig. 15 — Typical Perfect Humidity Dehumidification System

Humidistat Wiring (208/230-v Unit Shown)

13

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Bryant 581B VIII. Adjust FACTORY-INSTALLED Options, Disconnect Switch, Perfect Humidity Dehumidification System, Lps

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.