FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD-SUPPLIED TIME CLOCK

LEGEND

Potentiometer Defaults Settings:

DCV — Demand Controlled Ventilation

Power Exhaust

Middle

Minimum Pos.

Fully Closed

IAQ — Indoor Air Quality

DCV Max.

Middle

LA — Low Ambient Lockout Device

DCV Set

Middle

OAT — Outdoor-Air Temperature

Enthalpy

C Setting

POT — Potentiometer

 

 

RAT — Return-Air Temperature

NOTES:

1.620 ohm, 1 watt 5% resistor should be removed only when using differential enthalpy or dry bulb.

2.If a separate field-supplied 24 v transformer is used for the IAQ sensor power supply, it cannot have the secondary of the transformer grounded.

3.For field-installed remote minimum position POT, remove black wire jumper between P and P1 and set control minimum position POT to the minimum position.

Fig. 23 — EconoMi$er IV Wiring

(cfm)

2500

 

 

 

 

 

 

 

 

 

 

 

MINUTE

2000

 

 

 

 

 

 

 

 

 

 

 

PER

1500

 

 

 

 

 

 

 

 

 

 

 

FEET

 

 

 

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

CUBICIN

 

 

 

 

 

 

 

 

 

 

 

500

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW

0

 

 

 

 

 

 

 

 

 

 

 

 

 

0.05

 

 

0.15

 

 

0.25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STATIC PRESSURE (in. wg)

 

 

 

 

 

 

Fig. 24 — Barometric Flow Capacity

 

 

(cfm)

30

 

 

 

 

 

 

 

 

 

 

 

 

 

MINUTE

 

 

 

 

 

 

 

 

 

 

 

 

 

25

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER

20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

 

 

 

 

 

 

 

FEET

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUBICIN

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

FLOW

0.13

0.20

0.22

0.25

0.30

0.35

0.40

0.45

0.50

 

 

 

 

 

 

 

STATIC PRESSURE (in. wg)

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 25 — Outdoor-Air Damper Leakage

(cfm)

6000

 

 

 

 

 

 

 

 

MINUTE

5000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PER

4000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3000

 

 

 

 

 

 

 

 

FEET

 

 

 

 

 

 

 

 

2000

 

 

 

 

 

 

 

 

CUBIC

 

 

 

 

 

 

 

 

1000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN

 

 

 

 

 

 

 

 

 

FLOW

0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.05

0.10

0.15

0.20

0.25

0.30

0.35

STATIC PRESSURE (in. wg)

Fig. 26 — Return-Air Pressure Drop

D. EconoMi$er IV Standard Sensors

Outdoor Air Temperature (OAT) Sensor

The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA device used to measure the outdoor-air temperature. The outdoor-air temperature is used to determine when the EconoMi$er IV can be used for free cooling. The sensor is factory-installed on the EconoMi$er IV in the outdoor airstream. See Fig. 17. The operating range of temperature measurement is 40 to 100 F.

Supply Air Temperature (SAT) Sensor

The supply air temperature sensor is a 3 K thermistor located at the inlet of the indoor fan. See Fig. 27. This sensor is factory installed. The operating range of temperature mea- surement is 0° to 158 F. See Table 3 for sensor temperature/ resistance values.

25

Page 25
Image 25
Bryant 558F installation instructions Barometric Flow Capacity

558F specifications

The Bryant 558F is a highly efficient and versatile gas furnace designed to provide reliable heating for residential spaces. Known for its exceptional performance and advanced technology, the 558F caters to homeowners looking for comfort, efficiency, and sustainability in their heating solutions.

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The furnace is also equipped with aVariable Speed ECM blower motor. This feature provides enhanced air distribution and comfort by allowing for more precise control over airflow. The variable speed operation ensures that the furnace can adjust to the heating needs of the space without the constant on-off cycling, promoting quieter operation and better efficiency.

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In summary, the Bryant 558F gas furnace combines efficiency, advanced technology, and reliability to provide exceptional indoor comfort. With its two-stage heating, variable speed blower motor, and high AFUE rating, the 558F stands out as an optimal heating solution for modern homes seeking both performance and sustainability.