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035-16329-002 Rev. B (0304)
GENERAL
INFORMATION FOR
ALL MODELS
GAS SHUTOFF
Should overheating
occur, or the gas supply
fail to shut off, shut off
the manual gas valve to
the furnace and allow
blower to run until fur-
nace cools down and
blower shuts off before
shuttingoff the electrical
supply
The furnace gas valve is equipped
with a manual gas shutoff.To turn
off gas to the furnace, move the
lever on the gas valve to the =OFF"
position.
The furnace installation shouldalso
have a manual shutoffvalve in the
gas pipingto the furnace, similarto
what is shown in Figure 3. To turn
off the gas to the furnace, use a
wrench and turn the knob or lever
so that it is pointing 90 degrees
fromthe gas pipe, as shownin Fig-
ure3.
OFF ON
OFF ON
FIGURE 3:MANUAL GAS
SHUTOFF VALVE
Set the room thermostat at the
desired room temperature. Great-
est comfortwill be achieved when
the setting is not changed fre-
quently.
For energy conservation and econ-
omy it is recommended that the
thermostat be set at 68 ° for heating
and 80° for cooling.
For Heating with Air Condition-
ing Applications - Set heat/cool
switch to =HEAT" position and set
fan switchto"AUTO" position.
OBSERVING BURNER
OPERATION
1. Observe bumer tomake sure it
ignites. Observe colorofflame.
On natural gas the flamewill
burnbluewith appreciablyyel-
low tips.On Propane gas a yel-
low flame may be expected. If
flame is notthe propercolor
cell a qualifiedservicemanfor
service.
2. Letfurnace heat untilblower
cycleson.
3. Turn thermostatdown.
4. Observe burnerto make sure it
shutsoff.
5. Letthe furnace cooland
blowercycle off.
If any abnormalities are observed
when checking for correct opera-
tion, such as burnerfailingto ignite
or to turnoff, sootyflame, etc., cell
your nearest authorized service
technicianas shown in the Service
Center List included in the home
owner envelope.
IF FURNACE FAILS TO
OPERATE PROPERLY
1. Check settingof thermostat-
and positionofheat/cool switch
ifair conditioning isinstalled. If
a set-backtype thermostatis
employed besure that thether-
mostatis inthe correctoperat-
ingmode.
2, Check to see thatelectrical
power is"ON".
3. Check to see that the lever or
switchon the gas control valve
is in the full "ON" position.
4. Make sure filters are clean,
return grilles are not
obstructed, and supply regis-
ters are open.
5. Be sure thatfurnace flue piping
isopen and unobstructed.
If the cause for the failure to
operate is not obvious, do not
attempt to service the furnace
yourself. Call a qualified service
agency or your gas supplier.
PERIODIClNSPECTION
AND MAINTENANCE BY
HOMEOWNER
It is recommended that the home-
owner or user make an inspection
of the furnace at least every 90
days, or more often if desired. It is
also recommended that a qualified
service agency inspectthe furnace
before each operating season the
furnace is used, both heating and
air conditioning, and at any time
that there is an indication of mal-
function. The owner/user should
not attempt to disassemble the fur-
nace unlessexperienced and qual-
ifiedto do so.
CAUTION
FOR SAFETY- Turn off
electrical power to fur-
nace before performing
service such as clean-
ing filters.
Filters
It is very important that filters in
your furnace or air conditioning
system be replaced frequently.
Clean filtersnot onlyprovideadded
comfortand a more healthfulenvi-
ronment,but also allowthe system
to operate more efficiently.Check
filtersevery two or three weeks.
6 Unitary Products Group
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