Carrier 48TF004-014 User's Information Manual

User's Information Manual
NOTE TO INSTALLER
This manual should be left with the equipment owner.
WARNING: If the information in this manual is
not followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
— Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier from
a neighbor's phone. Follow the gas sup-
plier's instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency or the gas supplier.
Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. Refer to this manual. For
assistance or additional information consult a
qualified installer, service agency, or the gas
supplier.
Before performing recommended maintenance, be sure
main power switch to unit is turned off and lockout tag is
installed. Electrical shock could cause personal injury.
Your rooftop combination heating/cooling unit is equipped
with an automatic direct spark ignition and induced draft com-
bustion blower.
Do not attempt to light by hand; personal injury may result.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111
Book 1 4
Tab 1a 6a
Catalog No. 534-80104 Printed in U.S.A.
Single-Package Rooftop Heating/
TO LIGHT UNIT
1. Do not turn off the electrical power to unit without
first turning off the gas supply.
2. Before attempting to start the gas heating section, fa-
miliarize yourself with all the procedures that must be
followed.
3. Never attempt to manually light the main burners on
unit with a match, lighter, or any other flame. If the
electric sparking device fails to light the main burners,
refer to the following shutdown procedures, then call
your dealer as soon as possible.
If you do not follow these instructions exactly, a fire or
explosion may result. Property damage, injury, or loss of
life could occur.
See Fig. 1A and 1B for location of gas valve. Refer to Fig. 2
while proceeding with the following steps.
Step 1 —
Set room thermostat to the lowest temperature
setting and set SYSTEM switch to HEAT or AUTO. position.
Step 2 —
Close the manual gas valve.
Step 3 —
Turn off the electrical supply to the unit and
install lockout tag.
Step 4 —
Remove the burner access panel.
Step 5 —
Move the control on the gas valve to the OFF
position and wait 5 minutes.
Step 6 —
Move control on gas valve to ON position.
Step 7 —
Replace the burner access panel.
Step 8 —
Turn on the electrical supply to unit.
Step 9 —
Open the manual gas valve.
Step 10 —
Set room thermostat selector slightly above
room temperature to start unit. The induced-draft combustion
air fan will start. Main gas valve will open and main burners
should ignite within 5 seconds. If the burners do not light, there
is a 22-second delay before another 5-second try. If the burner
still does not light, the time delay is repeated. If the burner does
not light within 15 minutes, there is a lockout. If burners still do
not light, call for service.
Step 11 —
Set the temperature selector on room thermostat
to desired setting.
If the main burners fail to light, or the blower fails to come
on, shut down gas heating section and call your dealer for
service. Failure to follow these requirements could result in
serious personal injury.
Form 48T-1SO Pg 1 502
48TF004-014
48TM004-014
Cooling Units
3-02 Replaces: 48TF-2SO