Carrier 58MVC User Manual download pdf (Page 5)

BEFORE STARTING YOUR

FURNACE

Examine the furnace installation monthly to determine that:

1. All flue gas carrying areas external to the furnace (i.e.

chimney, vent connector) are clear and free of obstructions.

2. The vent connector is in place, slopes upward and is

physically sound without holes or excessive corrosion.

3. The return-- air duct connection(s) is physically sound, is

sealed to the furnace casing, and terminates outside the space

containing the furnace.

4. Thephysicalsupportofthefurnace issound withoutsagging

cracks, gaps, etc. around the base.

5. There are no obvious signs of deterioration of the furnace.

A92330

Fig. 5 -- Burner Flame

6. The burner flames are in good adjustment. (See Fig. 5.)

STARTING AND SHUTTING DOWN

YOUR FURNACE

Instead of a continuously burning pilot flame which wastes

valuable energy, your furnace uses an automatic, hot surface

ignition system to light the burners each time the thermostat starts

your furnace. Follow these important safeguards:

S Never attempt to manually light the burners with a

match or other source of flame.

A92319

Fig. 6 -- Do Not Light Burner with Match

S Read and follow the operating instructions on inside of

main furnace door, especially the item that reads as

follows:

Wait 5 minutes to clear out any gas. Then smell for gas,

including near the floor. If you smell gas, STOP!

Follow “B” in the safety information above on this

furnace label. If you don’t smell gas, go to the next

step.

S If a suspected malfunction occurs with your gas control

system, such as the burners do not light when they

should, refer to the shutdown procedures on inside of

main furnace door, or in the “Shutting Down Your

Furnace” section and call your dealer as soon as

possible.

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury/death or property damage.

Should the gas supply fail to shut off or if overheating

occurs, turn off the manual gas valve to the furnace

BEFORE turning off the electrical supply. (See Fig. 8.)

WARNING

S CHECK AIR FILTER: Before attempting to start

your furnace, be sure the furnace filter is clean and in

place. See “Performing Routine Maintenance” section

in this manual. Then proceed as follows:

Steps For Starting Your Furnace

1. Set your room thermostat to the lowest temperature setting.

(See Fig. 7.)

2. Close the external manual gas valve. (See Fig. 8.)

A08013

Fig. 7 -- Lowest Temperature Setting

A06188

Fig. 8 -- Close Valve

3. Turn OFF electrical supply to the furnace. (See Fig. 9.)

4. Remove main furnace door. (See Fig. 10.)

5. The gas valve will have a control switch to turn off and on.

Turn the control switch on the gas control to the OFF

position and wait 5 minutes. (See Fig. 11.) Then smell for

gas,including nearthe floor. Ifyou smell gas,STOP! Follow

“B” on furnace label. If you don’t smell gas, go to next step.

6. After waiting 5 minutes, turn the control switch on the gas

control to the ON position. (See Fig. 12.)

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Carrier 58MVC User Manual Page 5

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