BLOWER OFF DELAY

ADJUSTMENT SWITCH

 

G

24-V THERMOSTAT

 

TERMINALS

 

R

 

 

 

Y

 

TEST/TWIN

W

HUMIDIFIER TERMINAL

Com

 

24V

(24-VAC 0.5 AMP MAX)

 

HUM

LED OPERATION &

 

 

 

 

DIAGNOSTIC LIGHT

 

 

HARNESS CONNECTOR

SEC-1

 

24-V TRANSFORMER SEC-2

 

 

3-AMP FUSE

 

SPARE-1

COOL

 

 

BLOWER SPEED

HEAT

 

 

 

SELECTION TERMINALS

 

 

SPARE-2

 

 

EAC-1 (BLACK)

EAC-ELECTRONIC AIR CLEANER

TERMINALS (115-VAC 1 AMP MAX)

115-VAC (L1)

EAC-2 (WHITE)

POWER SUPPLY

115-VAC (L2) NEUTRAL

 

 

CONNECTION

HOT SURFACE

INDUCER MOTOR

IGNITOR CONNECTOR

CONNECTOR

A00292

Fig. 7ÐFurnace Control

through the sight glass or window on the blower access door. The control indicates status with the LED on continuously, rapid flashing, or a code composed of 2 digits. (The first digit is the number of short flashes, the second is the number of longs flashes.)

For an explanation of status codes, refer to service label (See Fig. 8) located on blower access door or the Troubleshooting Guide.

The control stores 1 status code (the last status code to occur) for a period of 48 hr or until the 115- or 24-v power is interrupted. NOTE: Look into blower access door sight glass for current LED status BEFORE removing the blower access door. Removing blower access door will open blower access door switch and terminate 115-v power to control, and status code will be erased.

1.To retrieve status code, proceed with the following:

NOTE: NO thermostat signal shall be present at control, and all blower off delays must be completed.

a.Leave 115-v power to furnace turned on.

b.Look into blower access door sight glass for current LED status.

NOTE: Leave blower access panel installed to maintain power to control to view current LED status.

c.Remove control access door.

d.BRIEFLY remove either wire from the main limit switch until LED goes out, then reconnect it.

NOTE: If wire to main limit is disconnected longer than 4 sec, main blower starts, and retrieval request is ignored.

2.When above items have been completed, the following will occur:

a.LED flashes a status code 4 times. Record this status code for further troubleshooting.

b. Inducer motor starts and continues to run the entire component test.

c. Hot surface ignitor is energized for 15 sec, then de- energized.

d. Main blower operates at heating speed for 10 sec, then turns off.

e. Main blower operates at cooling speed for 10 sec, then turns off.

f. Inducer motor stops.

Items a through e above will assist in furnace troubleshooting since all components are functionally operated except the gas valve. This procedure is also referred to as Component Test.

3.Operate furnace through 1 heat cycle to test for proper operation and check LED status.

4.If furnace is operating properly and LED indicates proper operation, replace control access door.

5.Component Test can also be initiated by performing the following:

a.Remove control access door.

b.Remove blower access door.

c.Manually close blower access door switch.

7

Page 7
Image 7
Carrier 58YAV instruction manual ÐFurnace Control

58YAV specifications

The Carrier 58YAV is a high-efficiency gas furnace that has gained recognition in the HVAC industry for its performance and advanced technology. Specifically designed to meet the needs of modern homes, the 58YAV integrates various features that enhance comfort, energy efficiency, and reliability.

One of the standout characteristics of the 58YAV is its exceptional AFUE (Annual Fuel Utilization Efficiency) rating, which often reaches up to 96%. This means that the furnace converts a significant portion of fuel into heat, translating into lower energy bills and a reduced carbon footprint. The unit operates using a two-stage heating system which allows for greater temperature consistency and improved energy savings. The ability to operate at a low stage during mild conditions prevents energy wastage while providing adequate heating comfort.

The 58YAV employs advanced modulating technology that provides precise temperature control. This technology enables the furnace to adjust its heating output based on the specific demands of the home, ensuring optimal comfort without unnecessary energy consumption. Additionally, the integrated variable-speed blower motor enhances air circulation and reduces noise during operation, creating a quieter home environment.

Moreover, equipped with a smart thermostat capability, the Carrier 58YAV can be paired with Carrier’s Comfort™ series controls for enhanced programmability and remote access. This feature allows homeowners to conveniently adjust their home’s heating settings from their smartphones or other smart devices, maximizing convenience and control over their indoor environment.

The furnace also features a durable and robust cabinet design that ensures long-lasting performance. With enhanced insulation, the 58YAV minimizes operational noise and provides greater energy efficiency. Safety features, including a pressure switch and flame sensor, are integrated into the system to ensure safe and reliable operation.

In terms of installation, the Carrier 58YAV is designed to offer versatility with multiple venting options, allowing it to fit seamlessly into various home configurations. Its compact design makes it suitable for various spaces, from attics to basements.

Overall, the Carrier 58YAV is a pinnacle of modern heating technology, providing homeowners with efficient, reliable, and smart heating solutions that align with today’s energy standards. Its blend of efficiency, comfort, and innovative features establishes it as a top choice in the gas furnace market.