Carrier 58ZAV User's Information Manual page 4

operations lnUSt beperformed bytrained service p erson-
nel.Observe s afety p recautions in thislnanual, ontags, a nd
onlabels a ttached tothe fllrnace, and other s afety p recautions
thatmayapply.
Recognize safety i nformation. Thisis thesafety-alert sym-
bolz_x. W hen yousee thissymbol onthefurnace a ndin
instructions orlnanuals, bealert t othe potential forpersonal
injury.
Understand thesignal words DANGER, WARNING, and
CAUTION. These words areused withthesafety-alert sym-
bol.DANGER identifies t helnOSt serious h azards which
will result i n severe personal injuryor death. WARNING
signifies h azards which couldresult i npersonal injuryor
death. CAUTION isused toidentify unsafe p ractices which
wouldresult i n minor p ersonal injuryorproduct andprop-
ertydamage. NOTE isused tohighlight s uggestions which
will result i nenhanced installation, reliability, oroperation.
STARTING YOUR FURNACE
Instead of a continuously burning pilot flame, your furnace
uses an amomatic hot surface ignition system to light the
burners each time the thermostat signals the furnace to start.
Follow these important safeguards:
• Never attempt to lnanually light the burners with a match
or other source of flame.
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• Read and follow the operating instructions on the fllrnace,
especially the item that reads as follows:
Wait 5 minutes to clear out any gas. Then smell f\_r gas,
including near the floor. If you smell gas, STOP! Follow "B"
in the safety inforlnation above on this label. If you don't
smell gas, go to the next step.
• If a suspected malfunction occurs with your gas control
system, such as the burners do not light when they should,
refer to the shmdown procedures on the furnace, or in the
next section, to turn off your system, then call your dealer as
soon as possible.
Should overheating occur or the gas valves fail to
shut off the gas supply, turn off the manual gas
valve (See Fig. 8.) to the furnace BEFORE turning
off the electrical supply. A failure to follow this
warning could result in a fire or explosion, and
personal injury or death.
CheckAir Filter: Before attempting to start your furnace,
be sure the furnace filter is clean and in place. (See the main-
tenance section of this lnanual.) Then proceed as follows:
STEPS FOR STARTING YOUR
FURNACE
1. Set your room thermostat to the lowest temperature set-
ring. (See Fig. 7.)
2. Close the external lnantml gas valve. (See Fig. 8.)
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3. Turn OFF electrical supply to the fltrnace. (See Fig. 9.)
4. Remove the flmmce access door(s).
a. Downflow/Horizonta_Remove blower door after
removing 2 screws first, then relnove the control
door. (See Fig. 10.)
b. Upflow Remove control door. (See Fig. 11.)
10 11
5. The gas valve will have EITHER a control knob or con-
trol switch to turn offand on. Turn the control knob or
switch on the gas valve to the OFF position and wait
5 lninmes. (See Fig. 12 or 13.)
6. After waiting 5 lninutes, turn the control knob or switch
on the gas valve to the ON position. (See Fig. 14 or 15.)
7. Replace the access door(s). See Fig. 16 for upflow and
Fig. 17 for downflow. Replace control door first on
downflow fllrnaces. Then replace blower door (secure
with 2 screws).
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