Electrical Controls and Wiring, Pilot

(10.) Reinstall cell inlet plates and burner assembly. Care must be exercised to center the burners in the cell openings.

7.After cleaning flue openings, check sealant on flue collector to ensure that it has not been damaged. If new sealant is needed, contact your dealer or distributor.

8.Clean and replace flue collector assembly, making sure all 8 screws are secure.

9.Reinstall 2 screws in relief box.

10.Reconnect wires to the following components:

a.Draft safeguard switch

b.Inducer motor

c.Pressure switch

d.Limit overtemperature switch

e.Gas valve

f.Edge connector leading to control box

11.Replace blower access doors.

12.Turn on electrical power and gas.

13.Set thermostat and check furnace for proper operation.

Never use a match or other open flame to check for gas leaks. Use a soap-and-water solution. A failure to follow this warning could result in fire, personal injury or death.

14.Check for gas leaks.

15.Replace control access door.

ELECTRICAL CONTROLS AND WIRING

NOTE: There may be more than 1 electrical supply to unit.

The electrical ground for 115-v wiring must be maintained properly. Refer to Fig. 5 for field wiring information and to Fig. 6 for unit wiring information.

With power disconnected to unit, check all electrical connections for tightness. Tighten all screws on electrical connections. If any smoky or burned connections are noticed, disassemble the connec- tion, clean all parts and stripped wire, and reassemble properly and

PILOT HEAD V–NOTCH FALLS

DIRECTLY BELOW FRONT EDGE

OF BURNER CARRYOVER.

1/8″

A91249

Fig. 4ÐPosition of Pilot to Burner

securely. Electrical controls are difficult to check without proper instrumentation; therefore, reconnect electrical power to unit and observe unit through 1 complete operating cycle.

The 24-v circuit contains an automotive-type, 3-amp fuse located on the main control board. Any direct shorts during installation, service, or maintenance could cause this fuse to blow. If fuse replacement is required, use ONLY a 3-amp fuse of identical size.

PILOT

Check the pilot and clean if necessary at the beginning of each heating season. The pilot flame should be high enough for proper impingement of the flame sensing element (or thermocouple) and to light the burners. Remove the accumulation of soot and carbon from the flame sensing element (or thermocouple). Refer to Fig. 4 for proper location of pilot on burner assembly.

TROUBLESHOOTING

Page 7 contains a troubleshooting chart. This chart can be a useful tool in isolating furnace operation problems. Beginning with the word "Start," answer each question and follow the appropriate arrow to the next item.

The chart will help identify the problem or failed component. After replacing any component, verify correct operating sequence as indicated by bold arrows.

58GFA specifications

The Carrier 58GFA is a highly regarded gas furnace known for its reliability, energy efficiency, and advanced technology. Designed with the modern homeowner in mind, the 58GFA is engineered to provide effective heating while minimizing energy consumption and operating costs.

One of the standout features of the Carrier 58GFA is its variable-speed blower motor. This technology allows for enhanced airflow control, ensuring consistent temperatures throughout the home. The variable-speed operation enables the furnace to adjust its output based on the heating demands, which not only improves comfort but also increases energy efficiency by running at lower speeds for extended periods.

Another key characteristic of the 58GFA is its two-stage heating system. This dual-stage capability allows the furnace to operate at a lower stage during milder conditions, optimizing energy usage without sacrificing comfort. During peak heating demands, the system can seamlessly transition to full capacity. This feature reduces temperature fluctuations, providing a more stable indoor climate.

The Carrier 58GFA is equipped with high-efficiency burners, achieving impressive Annual Fuel Utilization Efficiency (AFUE) ratings. With an AFUE rating of up to 80%, this furnace competently converts fuel into heat, making it an economical choice for homeowners looking to reduce energy bills. Additionally, the unit complies with environmental standards, contributing to a greener home footprint.

Durability and quiet operation are also notable characteristics of the Carrier 58GFA. The within design includes a robust heat exchanger made of high-quality materials to withstand the rigors of daily use. The noise-reducing technology, including insulated cabinets and quiet motors, ensures that the heating operation remains unobtrusive, maintaining a peaceful home environment.

Moreover, the 58GFA features advanced thermostat compatibility, allowing for integration with smart home systems. This capability allows homeowners to monitor and control their heating system remotely, enhancing convenience and energy management.

In summary, the Carrier 58GFA gas furnace is a leading choice for homeowners seeking energy-efficient heating solutions. With its variable-speed blower, two-stage heating, high AFUE rating, durable construction, and smart compatibility, it stands out as a formidable option in the HVAC market, delivering comfort and performance year after year.