Carrier 48DJE - Manual

HEATING & COOLING
48DJD,LJD005-014
48DJE,LJE004-012
Single-Package Rooftop Heating/Cooling Units
User’s Information Manual
NOTE TO INSTALLER
This manual should be left with the equipment owner.
FOR YOUR SAFETY
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appiiance.
A WARNING
Improper installation, adjustment, alteration, ser­
vice or maintenance can cause injury or prop­
erty damage. Refer to this manual. For assis­
tance or additional information consult a qualified
installer, service agency or the gas supplier.
FOR YOUR SAFETY
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 suppli­
er’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
A WARNING
Before performing recommended maintenance, be sure
main power switch to unit is turned off. Electrical shock
could cause personal injury.
Your rooftop combination heating/cooling unit is equipped
with an automatic direct spark ignition and induced draft
combustion blower.
A WARNING
Do not attempt to light by hand; personal injury may
result.
TO LIGHT UNIT
A DANGER
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,
familiarize yourself with all the procedures that must
be followed.
If you do not follow these instructions exactly, a fire
or explosion may result, causing property damage, in­
jury or loss of life.
INTAKE
LOUVERS BURNER ACCESS PANEL
Fig. 1 — Gas Valve Location
See Fig. 1 for location of gas valve. Refer to Fig. 2 while
proceeding with the following steps.
Step 1 -
setting and
Step 2 -
Step 3 —
Step 4 —
Step 5 —
wise
Step 6 —
wise'
Set room thermostat to the lowest temperature
set SYSTEM switch to HEAT position.
Close the manual gas valve.
Turn off the electrical supply to the unit.
Remove the burner compartment access panel.
Turn the control dial on the gas valve clock-
to the OFF position and wait 5 minutes.
Turn control dial on gas valve counterclock-
to the ON position.
Step 7 — Replace the burner compartment 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 4 seconds. If the burners do not light,
there is a 60 second delay before another 4 second try. If
the burner still does not light, the time delay is repeated. If
the burner does not light on the 11th attempt, there is a
lockout. Repeat Steps 1 - 10. If burners still do not light,
call for service.
Step 11 — Set the temperature selector on room thermo­
stat to desired setting.
A WARNING
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.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book|1 |4 PC 111 Catalog No 564-906 Printed in U.S A Form 48D,L-2SO Pg 1 10-91 Replaces: 48D,L-1 SO
Tab la 6a