Table 7 — CO2 Sensor* Standard Settings

 

 

 

VENTILATION

ANALOG

CO2 CONTROL

OPTIONAL

RELAY

SETTING

EQUIPMENT

OUTPUT

RATE

RELAY SETPOINT

HYSTERESIS

 

 

 

(cfm/Person)

OUTPUT

RANGE (ppm)

(ppm)

(ppm)

 

 

 

 

 

1

Interface with Standard

Proportional

Any

4-20 mA

0-2000

1000

50

2

Proportional

Any

7-20 mA

0-2000

1000

50

Building Control System

3

Exponential

Any

4-20 mA

0-2000

1100

50

 

4

 

Proportional

15

4-20 mA

0-1100

1100

50

5

Economizer

Proportional

20

4-20 mA

0- 900

900

50

6

Exponential

15

4-20 mA

0-1100

1100

50

 

7

 

Exponential

20

4-20 mA

0- 900

900

50

8

Health & Safety

Proportional

—

4-20 mA

0-9999

5000

500

9

Parking/Air Intakes/ Loading Docks

Proportional

—

4-20 mA

0-2000

700

50

LEGEND

ppm — Parts Per Million

*Available sensor part numbers are listed in Table 4.

IX. STEP 9 — ADJUST EVAPORATOR-FAN SPEED

Adjust evaporator-fan speed to meet jobsite requirement.

Table 8 shows fan rpm at motor pulley settings and Table 9 shows motor efficiencies. Table 10 shows motor performance. Refer to Fan Performance Tables 11-30 to determine fan speed settings. Fan motor pulleys are factory set for speed shown in Tables 1A and 1B.

To change fan speed:

1.Shut off unit power supply and install lockout tag.

2.Loosen belt by loosening fan motor mounting plate nuts (see Fig. 33 and 34).

3.Loosen movable pulley flange setscrew (see Fig. 35).

4.Screw movable flange toward fixed flange to increase fan speed and away from fixed flange to decrease fan speed. Increasing fan speed increases load on motor. Do not exceed maximum speed specified in Tables 1A and 1B.

5.Set movable flange at nearest flat of pulley hub and tighten setscrew (see Tables 1A and 1B for speed change for each full turn of pulley flange).

To align fan and motor pulleys:

1.Loosen fan pulley setscrews.

2.Slide fan pulley along fan shaft.

3.Make angular alignment by loosening motor from mounting plate.

To adjust belt tension (see Fig. 33 and 34):

1.Loosen fan motor mounting plate nuts.

2.Units 090-103 — Slide motor mounting plate away from fan scroll for proper belt tension (1/2-in.

deflection with 5 to 10 lb of force) and tighten mount- ing nuts (see Fig. 33).

Units 120-151 — Slide motor mounting plate down- ward to tighten belt tension. (1/2-in. deflection with 5 to 10 lb of force.) Secure motor mounting plate nuts. See Fig. 34.

3.Adjust bolt and nut on mounting plate to secure motor in fixed position.

Realign fan and motor pulleys:

1.Loosen fan pulley setscrews.

2.Slide fan pulley along fan shaft.

3.Make angular alignment by loosening motor from mounting plate.

MOTOR MOUNTING

PLATE NUTS

Fig. 33 — Typical Belt-Drive Motor Mounting

for Sizes 090-103

—27—

Page 26 Page 28
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Image 27
Bryant 580F installation instructions CO2 Sensor* Standard Settings, IX. Adjust EVAPORATOR-FAN Speed
Page 26 Page 28

580F specifications

The Bryant 580F is a highly regarded gas furnace known for its exceptional heating performance and advanced technology. Designed for residential use, this model stands out for its reliability, efficiency, and user-friendly features that cater to modern heating demands.

One of the most notable features of the Bryant 580F is its efficiency rating. With an AFUE (Annual Fuel Utilization Efficiency) rating of up to 95%, this furnace maximizes heat output while minimizing energy consumption. This high level of efficiency not only results in lower utility bills but also reduces the environmental impact—a critical consideration for today’s eco-conscious homeowners.

The Bryant 580F is equipped with a multi-speed blower that ensures consistent airflow and enhances comfort by maintaining even temperatures throughout the home. This technology allows the furnace to adjust its operation based on the heating needs, leading to quieter operation and increased comfort levels.

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One of the standout technologies integrated into the Bryant 580F is its enhanced control system. The furnace works seamlessly with smart thermostats, allowing homeowners to monitor and adjust heating settings from their mobile devices. This feature not only provides convenience but also allows for energy-saving optimizations based on personal schedules and preferences.

Safety is also a primary concern with the Bryant 580F. It includes robust safety features such as a hot surface ignition system that eliminates the need for a standing pilot light, reducing the risk of gas leaks. Additionally, advanced diagnostics help in troubleshooting and maintenance, ensuring that potential issues can be identified and resolved quickly.

In conclusion, the Bryant 580F gas furnace is a remarkable choice for those seeking a blend of efficiency, comfort, and advanced technology. Its high AFUE rating, multi-speed blower, smart control compatibility, and safety features make it a reliable option for homeowners looking to invest in a dependable heating solution. As the demand for energy-efficient heating continues to grow, the Bryant 580F stands out as a model that meets and exceeds expectations in the modern heating landscape.
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