Performing Routine Maintenance | Bryant 340MAV instruction

necessary adjustments to operate the blower at either the low- or high-heat speed.

NOTE: If the burners fail to ignite after 4 attempts, the furnace control system will lock out. If lockout occurs, main burners fail to light, or blower does not come on, shut down the furnace and call your dealer for service.

12.Set your thermostat to the temper- ature that satisﬁes your comfort requirements.

SUGGESTION: Setting the ther- mostat back a few degrees and compensating for the difference with warmer clothing can make a big difference in your fuel con- sumption. The few degrees at the top of your thermostat “comfort level” are the most costly degrees to obtain.

When room temperature drops below the temperature selected on the thermostat, the furnace will be switched on automatically. When room temperature reaches the temperature selected on the thermostat, the furnace will be switched off automatically.

Some thermostats have a FAN mode with 2 selections, AUTO and ON. When thermostat is set to AUTO, the furnace blower cycles on and off. In ON mode, the furnace blower runs continu- ously. Continuous fan keeps the temperature level in your home more evenly balanced. It also per- mits the indoor air to be continu- ously ﬁltered. Fan On Plus™ –On all but the 340MAV, the blower speed can be increased or decreased if desired due to change of seasons, large gatherings in your home, etc. Simply change your FAN from ON to OFF (or AUTO depending on your thermo- stat), and then return to ON. The blower will switch to the next highest speed. There are at least 3 speeds to choose from. If the blower is running on its highest speed, a request to change will direct the blower to return to its lowest speed.

SHUTTING DOWN

YOUR FURNACE

Should you need to shut down your furnace for service or maintenance, you will need to turn the furnace off.

The following procedures must be followed:

1.Set your room thermostat to the lowest temperature setting. (See Fig. 19.)

2.Close the external manual gas valve. (See Fig. 9.)

3.Turn off electrical supply to the furnace. (See Fig. 20.)

4.Remove main furnace door. (See Fig. 11.)

5.Turn switch on the gas valve to OFF position.

(See Fig. 21 or 22.)

For 352MAV and 355MAV

OFF	ON
	or

For 340MAV and 350MAV

6.Replace main furnace door. (See Fig. 16.)

7.If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.

!CAUTION

Furnace is not to be installed, operated, and then turned off and left turned off in an unoc- cupied structure during winter. (See “Heading South for the Winter?” procedures in main- tenance section on page 9.) Freeze damage to furnace would occur.

PERFORMING

ROUTINE

MAINTENANCE

NOTE: The qualiﬁed installer or agency must use only factory- authorized replacement parts, kits, and accessories when modifying this product.

340MAV specifications

The Bryant 340MAV is a standout model in the Bryant lineup, designed to provide exceptional comfort, efficiency, and performance for residential heating and cooling needs. This unit offers a perfect blend of innovative technology and user-friendly features, making it an ideal choice for homeowners seeking reliability and quality.

One of the defining characteristics of the Bryant 340MAV is its impressive efficiency rating. With a SEER (Seasonal Energy Efficiency Ratio) of up to 18, this model ensures that homeowners can enjoy effective cooling during the summer months while minimizing energy consumption. Similarly, the heating efficiency is notable, with a high AFUE (Annual Fuel Utilization Efficiency) rating. This makes the 340MAV an environmentally friendly option that also promotes cost savings on energy bills.

The 340MAV incorporates advanced technologies that enhance its performance. One such technology is the variable-speed compressor, which allows the system to adjust its output based on the demands of the home. This means that the unit operates more quietly and reduces energy usage by matching the cooling or heating output required. Additionally, the two-stage heating capability provides more consistent temperatures and improved comfort throughout the space.

Operating noise is a crucial factor in residential HVAC systems, and the Bryant 340MAV is designed with this in mind. Engineered for quiet operation, the unit features a sound-dampening design, including an insulated cabinet and a specially designed compressor that minimizes noise levels. Homeowners can enjoy a comfortable indoor climate without the disruptive racket often associated with traditional systems.

Furthermore, the Bryant 340MAV is equipped with a durable all-aluminum coil, which improves heat transfer efficiency while also being resistant to corrosion. This characteristic contributes to the longevity of the unit, ensuring that it can withstand various environmental factors without compromising performance.

Another key feature is the advanced control options that the Bryant 340MAV offers. Integration with smart thermostats allows homeowners to monitor and adjust their HVAC system remotely, ensuring optimal comfort at all times. Additionally, the system is compatible with Bryant's Perfect Air™ filtration system, enhancing indoor air quality by reducing pollutants and allergens.

In summary, the Bryant 340MAV is a high-efficiency heating and cooling solution that brings together cutting-edge technology, quiet operation, and user-friendly features. With its focus on comfort and energy savings, it stands out as a prime choice for homeowners looking to invest in a reliable HVAC system.