Carrier A10247 Shutting Down Your Furnace, Turn on the electrical supply to the furnace

/

OR

A02267

Fig. 9 - Control Switch to ON

8. Replace the outer door.

)i

ii

m- -,L-

O

6 ®

A10264

Fig. 10 - Furnace Door Replaced

9. Turn ON the electrical supply to the furnace.

12.After about 17 seconds, the gas valve permits gas to flow to the

main burners where it is ignited. Hot flames begin to warm

the furnace's heat exchanger. After a time delay of approxim- ately 25-45 seconds the furnace blower is switched on.

NOTE:

If

the

main burners

fail to

ignite,

the furnace

control

system

will

go

through

three

more

ignition

cycles. Then

if burners

fail to

ignite,

the

system

will

lockout.

If lockout

occurs

or

the

blower

does

not

come

on, shut down

your

furnace

and

call

your

dealer

for service.

13.Set your thermostat to the temperature that satisfies your

comfort requirements. SUGGESTION: Setting the thermo-

stat back a few degrees--and compensating for the differ-

ence with warmer clothing--can make a big difference in

your fuel consumption on extremely cold days. The few de- grees at the top of your thermostat "comfort level" are the most costly degrees to obtain.

When the room temperature drops below the temperature selected

on the thermostat, the furnace will switch on automatically. When

the room temperature reaches the setting selected on the thermostat,

the furnace will be automatically switched off.

Continuous Fan Operation -Some thermostats have a "FAN"

switch with 2 selections: AUTO and ON. When thermostat is set on AUTO, the furnace blower cycles on and off, controlled by the

thermostat. In ON position, the furnace blower runs continuously

except for a 42-62 sec delay at the "call for heat." Continuous fan

keeps the temperature level in your home more evenly balanced. It

also continuously filters the indoor air.

Comfort Fan '_ -On all bu...._the 58STA or 58STX, the continuous

fan blower speed can be increased or decreased if desired due to

change of seasons, large gatherings in your home, etc. Simply

change your "FAN" switch from "on" to "ofF' (or "auto"

depending on your thermostat), and then return to "on", within 1 to 3 seconds. The blower will switch to the next highest speed. There are at least 3 speeds to choose from. If the blower is running on its highest speed, a request to change will direct the blower to return to its lowest speed.

A92359

Fig. 11 - Turn On Electrical Supply

10. Open the external manual gas valve.

A06189

Fig. 12 - Open Valve

11.Set the room thermostat to a temperature slightly above the

room temperature. This will automatically signal the furnace to start. The inducer motor will start and the hot surface igniter will energize. When hot, the igniter will have an orange glow.

SHUTTING DOWN YOUR FURNACE

Should you ever suspect a malfunction in your furnace, you will

need to turn the furnace off. The following procedures must be followed:

1.Set your room thermostat to the lowest temperature setting. (See Fig. 3.)

2.Close the external manual gas valve (See Fig. 4).

3.Turn off electrical supply to the furnace. (See Fig. 5.)

4.Remove outer furnace door. (See Fig. 6.)

5.Turn the switch on the gas control to the OFF position. (See Fig.7.)

6.Replace the outer furnace door. (See Fig. 9.)

7.If the furnace is being shut down because of a malfunction, call your dealer as soon as possible.