Carrier 58MVP instruction manual ÐAir Conditioning A/C Airflow Setup Switch Position

Page 10

NOT ENOUGH COOLING AIRFLOWÐGenerally, this indicates the Y/Y2 thermostat lead is not properly connected.

STEP

ACTION

YES

NO

GO TO

1.

Remove blower access panel and depress door switch. Use a piece of tape to hold switch closed.

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Ð

2

Wait a few sec for self test before proceeding to next step.

 

 

 

 

2.

Make sure thermostat is calling for cooling. If thermostat lead G is not connected, jumper across

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3

thermostat terminals R and G.

 

 

 

 

3.

Make sure thermostat fan control is in AUTO position if equipped.

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4

4.

Do you have 24v across Y/Y2 and Com on furnace control board?

8

5

Ð

5.

You have a defective thermostat, or a break in wiring between thermostat and furnace, or the Y/Y2

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Ð

6

thermostat terminal is not wired to thermostat.

 

 

 

 

6.

Fix problem.

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7

7.

Go to page number indicated in Index for CLEANUP AND START-UP INSTRUCTIONS.

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INDEX

8.

Are air conditioning select switches A/C set to proper tonnage as required by condensing unit? (See

10

9

Ð

Table 1.)

 

 

 

 

9.

Set air conditioning select switches A/C for proper tonnage as required by condensing unit. (See

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7

Table 1.)

 

 

 

 

10.

Disconnect the G thermostat lead or jumper if used.

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11

11.

Does blower motor turn off in 90 sec when G thermostat lead is disconnected?

12

13

Ð

12.

Replace furnace control board.

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7

13.

Observe operation of furnace in cooling mode for 8 minutes.

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14

14.

Does furnace operate properly in cooling mode?

15

16

Ð

 

Make sure outdoor unit is properly charged. If it is, go to page number indicated in Index for

 

 

 

15.

CLEANUP AND START-UP INSTRUCTIONS. If problem persists on an intermittent basis, replace

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INDEX

furnace control board. If problem still persists after replacing furnace control board, contact your dis-

 

 

 

 

 

tributor.

 

 

 

 

 

 

 

 

16.

Does furnace abruptly go through a self-test sequence as blower comes up to speed?

17

24

Ð

17.

Do you have less than 17 vac between R and Com on furnace control board?

18

24

Ð

18.

Do you have less than 90 vac between P1 and P2 on furnace control board?

19

20

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19.

Make sure the wire gage between main fuse box and furnace complies with wire size specification

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6

in Installation, Start-Up, and Operating Instructions.

 

 

 

 

 

 

 

 

 

20.

Disconnect the R thermostat lead.

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21

 

 

 

 

 

21.

Do you have less than 17 vac between R and Com on furnace control board?

22

23

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22.

Replace transformer.

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7

23.

Check the thermostat wire gage between furnace and thermostat, and furnace and outdoor unit. It is

 

 

 

recommended that AWG No. 18 color-coded copper thermostat wire be used for lengths up to 100

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6

 

ft. For wire lengths over 100 ft, use AWG No. 16 wire.

 

 

 

24.

Press down on microprocessor chip and make sure it is properly seated to furnace control board. If

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6

it is, replace furnace control board.

 

 

 

 

 

 

 

 

 

Table 1ÐAir Conditioning (A/C) Airflow Setup Switch Position

AIR CONDITIONER

AIRFLOW

A/C SWITCH POSITION

 

ALLOWABLE FURNACE MODEL SETUP

 

 

(TONS)

(CFM)

A/C-1

A/C-2

A/C-3

040

060

080

 

080

 

100

 

120

Default

1200 or

OFF

OFF

OFF

3 Tons

3 Tons

3 Tons

5

Tons

5

Tons

5

Tons

2000

1200 CFM

1200 CFM

1200 CFM

2000 CFM

2000 CFM

2000 CFM

 

 

 

 

1-1/2

600

ON

OFF

OFF

X

X

X

 

Ð

 

Ð

Ð

 

2

800

OFF

ON

OFF

X

X

X

 

X

 

X

 

X

2-1/2

1000

ON

ON

OFF

X

X

X

 

X

 

X

 

X

3

1200

OFF

OFF

ON

X

X

X

 

X

 

X

 

X

3-1/2

1400

ON

OFF

ON

X

X

X

 

X

 

X

 

X

4

1600

OFF

ON

ON

Ð

Ð

Ð

X

 

X

 

X

 

5

2000

ON

ON

ON

Ð

Ð

Ð

X

 

X

 

X

 

XÐIndicates allowable selection.

10

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Contents Troubleshooting Guide Example Start Here SectionÐCooling Mode ÐVariable Speed Furnace Control ÐWith DE Connection Lowed by the lowest number fault code. Example 13, 13 Service → ÐService Label/Fault Code Instructions Status Code ExampleStep Action YES GO to ÐAir Conditioning A/C Airflow Setup Switch Position LEDs 1, 2, 3, or 4 on Solid Solid means on continuously Step Action YES GO to Fault Code Motor MTR2 →44 Page Lowed by the lowest number fault code. Example 14, 14 Fault Code ÐContinuous Fan CF Airflow Setup Switch Position ÐTwo-Speed AC/HP Airflow Requirements CFMPage · LOW Heat Page →18 →40 Utes 14ÐIGNITION Lockout Ber indicated in Index for Fault Code →26 Turn power off Is inducer blower wheel okay? 55 ¬ Rpmrpm highlow ¬ →20 Index for Fault Code Cleanup and START-UP Instructions Appendix a Board Layout and SchematicControl Center Wiring Schematic Schematic DiagramAppendix C Pressure Check DiagramAppendix B Isolation CircuitsQuick Motor Test Procedure Appendix D→33 →59 Appendix E Example AIR Delivery Curve ÐAir Delivery CurveÐ100-20 Air Delivery CurvesAir Delivery Curve Ð Air Delivery CurveÐ120-20Upflow Total Static Pressure Reading Locations Static Pressure Reading Location DiagramsBasement Ð Upflow Application Closet Ð Downflow ApplicationAttic Ð Horizontal Application Duct Static Check Sheet Appendix F Quick Reference InformationAppendix G Thermostat Staging AlgorithmVariable Speed Condensing Furnace Algorithm Service Training
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58MVP specifications

The Carrier 58MVP is a high-efficiency gas furnace designed for optimal performance and energy savings. This model represents Carrier's commitment to innovative engineering and advanced technology, making it a preferred choice for homeowners seeking reliable heating solutions.

One of the standout features of the 58MVP is its impressive Annual Fuel Utilization Efficiency (AFUE) rating, which can reach up to 96 percent. This high AFUE rating indicates that the furnace uses less energy to produce heat, leading to lower utility bills and a reduced carbon footprint. The furnace is equipped with a two-stage gas valve that allows it to operate on a low setting during mild weather, providing increased efficiency and comfort.

The 58MVP also features Carrier's Infinity Control system, an advanced programmable thermostat that enables homeowners to customize their heating preferences. This system allows for precise temperature control and scheduling, ensuring that the home remains at a comfortable temperature while minimizing energy consumption.

In addition to its efficiency, the 58MVP is designed with noise reduction technology, including a quiet operating blower and insulated cabinet. This reduces operational sound, allowing for a more peaceful home environment. The model's multi-speed blower motor enhances comfort by providing consistent airflow and further optimizing efficiency.

Durability is a key characteristic of the Carrier 58MVP. It has a stainless-steel heat exchanger that promotes longevity and performance. The furnace is also equipped with a galvanized steel cabinet featuring a powder-coated finish, which protects against rust and corrosion.

The 58MVP is compatible with Carrier's advanced air purification systems, optimizing indoor air quality while heating. With features designed for efficiency, comfort, and durability, the Carrier 58MVP is an exceptional choice for homeowners looking to enhance their heating systems. The combination of advanced technologies, such as the two-stage operation and Infinity Control, positions this furnace as a leader in the market, meeting the needs of today's energy-conscious consumers. Ideal for both new constructions and retrofits, the Carrier 58MVP continues to set the standard for residential heating solutions.
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