Step Action YES GO to | Carrier 58MVP specification

28.	Put setup switch SW-1 back in OFF position.	Ð	Ð	29
29.	Jumper R and W/W1 thermostat terminals.	Ð	Ð	30
30.	Does RED LED2 turn back ON?	7	31	Ð
31.	Install isolation relays in the W/W1 and Y/Y2 circuits per Fig. 5 in Appendix B or replace thermostat.	Ð	Ð	8
32.	Was RED LED2 ON before you started Step 1?	34	33	Ð
33.	Solid YELLOW LED3 indicates furnace is in high fire and solid GREEN LED4 indicates furnace is in	Ð	Ð	8
33.	low fire.	Ð	Ð	8
	low fire.
34.	Check outdoor unit contactor. Failure to pull in can cause excessive current draw on low-voltage
34.	circuit. This can be intermittent and may require extended operation to repeat problem. Isolating	Ð	Ð	35
	outdoor unit may solve problem. (See Fig. 6 in Appendix B.)
35.	Check thermostat wire gage between furnace and outdoor unit. It is recommended that AWG No.
35.	18 color-coded copper thermostat wire be used for lengths up to 100 ft. For wire lengths over 100	Ð	Ð	14
	ft, use AWG No. 16 wire.
36.	Observe operation of furnace through a 20 minute heat cycle. Try to pinpoint where in cycle RED	Ð	Ð	37
36.	LED2 turns ON.	Ð	Ð	37
	LED2 turns ON.
	Go to step indicated below if RED LED2 turns ON when 1 of the following events occur:	Ð	Ð	Ð
	· When gas valve is energized.	Ð	Ð	38
37.	· When HSI is energized.	Ð	Ð	39
	· When high-pressure switch HPS makes during transition from low to high fire.	Ð	Ð	38
	· RED LED2 never turns ON.	Ð	Ð	40
38.	Replace gas valve.	Ð	Ð	8
39.	Isolate humidifier with a separate 24-vac supply or replace humidifier solenoid coil.	Ð	Ð	14
40.	Observe operation of furnace through a 4 minute cooling cycle. Does RED LED2 turn ON?	41	47	Ð
41.	Disconnect all thermostat leads from furnace control board.	Ð	Ð	42
42.	Put setup switch SW-1 in ON position and jumper R, W/W1, and Y/Y2 thermostat terminals simulta-	Ð	Ð	43
42.	neously until RED LED2 turns OFF.	Ð	Ð	43
	neously until RED LED2 turns OFF.
43.	Put setup switch SW-1 back in OFF position.	Ð	Ð	44
44.	Reconnect only outdoor unit to Y/Y2 and Com terminals on furnace control board.	Ð	Ð	45
45.	Jumper R and Y/Y2 thermostat terminals.	Ð	Ð	46
46.	Does RED LED2 turn back ON?	34	31	Ð
47.	Go to page number indicated in Index for CLEANUP AND START-UP INSTRUCTIONS. If problem
47.	persists on an intermittent basis, replace furnace control board. If problem still persists on an inter-	Ð	Ð	INDEX
	mittent basis after replacing furnace control board, contact your distributor.

RED LED2 FLASHINGÐIndicates line voltage polarity is reversed.

STEP	ACTION	YES	NO	GO TO
1.	Turn power off, remove blower access panel, and disconnect all thermostat leads from furnace con-	Ð	Ð	2
1.	trol board.	Ð	Ð	2
	trol board.
2.	Turn power on and depress door switch. Use a piece of tape to hold switch closed.	Ð	Ð	3
3.	Is RED LED2 flashing?	6	4	Ð
4.	Replace furnace control board, date code 9405 or later.	Ð	Ð	5
5.	Go to page number indicated in Index for CLEANUP AND START-UP INSTRUCTIONS.	Ð	Ð	INDEX
6.	Do you have 120 vac across L2 and chassis ground?	7	8	Ð
7.	Line voltage polarity is reversed. Fix problem.	Ð	Ð	5
8.	Replace furnace control board.	Ð	Ð	5

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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58MVP specifications