Carrier 58CLA Guide

—Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL OIL:
— Do not try to light any appliance.
—Do not touch any electrical switch; do not use
any phone in your building.
•Immediately call your fuel supplier from a
neighbor’s phone. Follow the fuel supplier’s
instructions.
•If you cannot reach your fuel supplier, call the
fire department.
—Installation and service must be performed by a
qualified installer, service agency or the fuel
supplier.
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 use this furnace if any part has been under
water. Immediately call a qualified service techni-
cian to inspect the furnace and to replace any part
of the control system and any oil control which
has been under water.
58CLA
OIL FURNACE
USER’S INFORMATION MANUAL FOR THE OPERATION AND
MAINTENANCE OF YOUR NEW OIL-FIRED FURNACE
NOTE TO INSTALLER: THIS MANUAL MUST BE LEFT WITH THE EQUIPMENT USER.

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INSTALLATION DATA
Date Installed
Dealer Name
Address
City
State Zip
Telephone
FURNACE
Product No.
Model No.
Serial No.
SPLIT-SYSTEM
OUTDOOR UNIT:
Product No.
Model No.
Serial No.
INDOOR COIL:
Product No.
Model No.
Serial No.
ACCESSORIES
Product No.
Model No.
Serial No.
Product No.
Model No.
Serial No.
Product No.
Model No.
Serial No.
WELCOME TO A NEW GENERATION
OF COMFORT
Congratulations! In light of rising energy costs, the
58CLA Low-Boy Oil Furnace is among the soundest
investments today’s homeowner can make.
Your new furnace is truly a triumph of technology in
home heating. A unique silencer within the heat
exchanger, insulated cabinet, and rubber blower
mounts make it among the quietest units on the mar-
ket. The combustion chamber is stainless steel for long
life and it heats up quickly resulting in higher energy
efficiency.
With only minimal care, your new furnace will deliver
many years of money-saving home comfort and enjoy-
ment. Spend just a few minutes with this manual to
learn the operation of your new furnace and the small
amount of maintenance it takes to help keep it operat-
ing at peak efficiency year after year.
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MODEL 58CLA LOW-BOY FURNACE

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FURNACE COMPONENTS
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Heavy-duty blower circulates air across the heat
exchanger to transfer heat into the home.
Access door to air filters and blower.
Air filters.
Unique silencer system eliminates combustion
noise.
Return-air plenum.
Stainless steel combustion chamber.
Heat exchanger designed and shaped to efficient-
ly
transfer heat from furnace into the home.
Supply-air plenum.
Fully insulated internal walls minimize heat loss.
High limit control prevents overtemperature.
Manual switch allows user control of constant
low-speed blower operation.
Adjustable electronic fan timer control (inside)
with low voltage electrical terminal strip for easy
connection of thermostat, cooling control, elec-
tronic air cleaner, and humidifier.
Aesthetic removable cabinet hides and protects
burner and controls.
High-performance oil burner.
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IMPORTANT FACTS
Your furnace must have adequate airflow for efficient
combustion and safe ventilation. Do not enclose it in
an airtight room or “seal” it behind solid doors.
To minimize the possibility of serious personal injury,
fire, furnace damage, or improper operation,
carefully
follow these safety rules:
3
• Do not cover the furnace, store trash or debris near
it, or in any way block the flow of fresh air to the unit.
• Combustion air must be clean and not contaminated
with chlorine or fluorine. These compounds are present
in many products around the home, such as: water soft-
ener salts, laundry bleaches, detergents, adhesives,
paints, varnishes, paint strippers, waxes, and plastics.
Make sure the combustion air for your furnace does
not contain any of these compounds. During remodel-
ing be sure the combustion air is fresh and uncontam-
inated. If air with vapors of these compounds is burned
in your furnace, the heat exchangers and metal vent
system may deteriorate.
NOTE: Do not use this furnace if any part has been
under water. Immediately call a qualified service tech-
nician to inspect the furnace and to replace any part of
the control system, electrical components, and any oil
control which has been under water.
NOTE: The qualified installer or agency must use only
factory-authorized replacement parts, kits, and acces-
sories when servicing this product.
The furnace burner control has a safety device which
must be manually reset. If the furnace is left unattended
for an extended period of time, have it checked period-
ically for proper operation. This precaution will prevent
problems associated with no heat, such as frozen water
pipes, etc.
SAFETY CONSIDERATIONS
Installing and servicing of heating equipment can be
hazardous due to oil and electrical components. Only
trained and qualified personnel should install, repair,
or service heating equipment.
Untrained personnel can perform basic maintenance
functions such as cleaning and replacing air filters.All
other operations must be performed by trained service
personnel. Observe safety precautions in this manual,
on tags, and on labels attached to the furnace and other
safety precautions that may apply.
Recognize safety information. This is the safety-alert
symbol . When you see this symbol on the furnace
and in instructions or manuals, be alert to the potential
for personal injury.
Understand the signal words — DANGER, WARN-
ING, and CAUTION. These words are used with the
safety-alert symbol. DANGER identifies the most seri-
ous hazards which
will result in severe personal injury
or death. WARNING signifies hazards which
could
result in personal injury or death. CAUTION is used to
identify unsafe practices which
may result in minor per-
sonal injury or product and property damage. NOTE is
used to highlight suggestions which will result in
enhanced installation, reliability or operation.
STARTING YOUR FURNACE
This appliance is equipped with an ignition device which
automatically lights the burner each time the thermostat
starts your furnace. Follow these important safeguards:
FOR YOUR SAFETY
Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
WARNING
FIRE, EXPLOSION, CARBON MONOXIDE POI-
SONING HAZARD
Failure to follow this warning could lead to
sooting, fire, explosion, and/or severe bodily
harm.
For use with grade 2 Fuel Oil maximum. Do
not use gasoline, crankcase oil, or any oil con-
taining gasoline!
CAUTION
FIRE AND UNIT OVERHEAT HAZARD
Failure to follow this caution may result in mi-
nor personal or property damage.
Never burn garbage or paper in the heating
system and never leave rags, paper, or any
flammable items around the unit.
CAUTION
FIRE AND EXPLOSION HAZARD
Failure to follow this caution may result in mi-
nor personal or property damage.
This furnace is equipped with a constant type
primary ignition system. DO NOT ATTEMPT
TO LIGHT WITH A MATCH.
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!
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•If a suspected malfunction occurs with your oil control
system, such as the burner not lighting when it should,
refer to the “Shutting Down Your Furnace” section and
call your dealer as soon as possible.
CHECK AIR FILTERS: Before attempting to start
your furnace, be sure the furnace air filters are clean
and in place. See “Performing Routine Maintenance”
section in this manual. Then proceed as follows:
STEPS FOR STARTING YOUR
FURNACE
1. Open all warm air registers and make sure that all
return-air grills are unobstructed.
2. If a humidifier is installed with your system, open
the water supply valve.
3. Make sure blower access door is secured in place.
4. Set your room thermostat to the lowest temperature
setting. (See Fig. 5.)
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5. Turn on electric power to the furnace. (See Fig. 6.)
6. Open the oil supply valve. (See Fig. 7.)
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7. Check all connections to ensure there are no leaks.
8. Set room thermostat to a temperature slightly above
room temperature. This will automatically signal
the furnace to start.
9. When the thermostat calls for heat, power from the
transformer energizes the fan control board. The fan
control energizes the ignition control. The ignition
control will automatically light the burner.
The electronic fan control automatically turns on
the blower after 60 sec. Fan on control is not adjust-
able. The air moved over the heat exchanger by the
blower is warmed and passes through the ducts to
the room registers.
This unit is equipped with a continuous ignition
control. If the main burner does not ignite within
30 sec from the call for heat, the control will lock
out. The red button on top of the control must be
depressed for 3 sec in order to reset the control.
The control CANNOT be reset from the room
thermostat.
10. Set your thermostat to the temperature that satisfies
your comfort requirements. SUGGESTION: Set-
ting the thermostat back a few degrees and compen-
sating for the difference with warmer clothing can
make a big difference in your fuel consumption on
extremely cold days. The few degrees at the top of
your thermostat “comfort level” are the most costly
degrees to obtain.
When room temperature drops below the tempera-
ture selected on the thermostat, the furnace will be
switched on automatically. When room temperature
reaches the degree selected on the thermostat, the
furnace will be switched off automatically.
Some thermostats have a FAN mode with 2 selec-
tions, AUTO and ON. When thermostat is set to
AUTO, the furnace blower cycles on and off, con-
trolled by the thermostat. In ON mode, the furnace
blower runs continuously. This keeps the tempera-
DANGER
ELECTRICAL SHOCK HAZARD HIGH VOLT-
AGE AT IGNITER.
Severe electrical shock, personal injury, or
death will result.
!
®

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ture level in your home more evenly balanced. It
also continuously filters the indoor air.
NOTE: Constant low-speed blower operation can also
be achieved by turning on the constant blower rocker
switch located on top of unit. Regardless of room ther-
mostat setting, blower will run continuously in low
speed to provide constant air circulation. If constant
blower rocker switch is turned off, room thermostat
will control blower operation.
SHUTTING DOWN YOUR FURNACE
Should you need to shut down your furnace for service
or maintenance, you will need to turn the furnace off.
The following procedures must be followed:
1. Set the thermostat to the lowest setting.
(See Fig. 8.)
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2. Turn off all electrical power to the appliance.
(See Fig. 9.)
3. Close the oil supply valve. (See Fig. 10.)
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4. If applicable, turn off water supply to humidifier.
5. If furnace blower will be necessary for cooling sys-
tem, remember to turn electric power back on when
needed for air conditioning.
6. If the furnace is being shut down because of a mal-
function, call your dealer as soon as possible.
ALWAYS KEEP MAIN OIL VALVE TURNED OFF
IF BURNER IS SHUT DOWN FORAN EXTENDED
PERIOD OF TIME.
11 12
PERFORMING ROUTINE
MAINTENANCE
With proper maintenance and care, your furnace will
operate economically and dependably. Instructions for
basic maintenance follow. However, before beginning
maintenance, follow these safety precautions:
FILTERING OUT TROUBLE
Dirty air filters will cause a loss of airflow in your duct
system. When excessive loss of airflow occurs, the fur-
nace may cycle on its safety controls. If this condition
is left unattended, the furnace will eventually lock out.
It is recommended that the furnace air filters be checked
every 3 or 4 weeks and cleaned or replaced as necessary.
The air filters are located in the blower compartment
installed in an internal filter rack which is provided as
standard equipment with furnace. (See Fig. 2.) To
®
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in
personal injury due to electrical shock.
Turn off all electrical power to furnace before
performing any maintenance or service on
unit.
CAUTION
CUTS AND ABRASION HAZARD
Failure to follow this caution may result in mi-
nor personal injury.
Although special care has been taken to mini-
mize sharp edges, be extremely careful when
handling parts or reaching into the furnace.
CAUTION
UNIT OVERHEAT HAZARD
Failure to follow this caution may result in
damage to the furnace blower motor, over
heat the heat exchanger and reduce the effi-
ciency.
Never operate your furnace without the air fil-
ters in place.
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inspect, clean, and or replace air filters, follow these
steps:
1. Turn off electrical supply to furnace. (See Fig. 11.)
2. Remove blower access door in rear of furnace. (See
Fig. 13.) Lift door up, then out using handle on
blower access door.
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3. Remove air filters from furnace.
a. Remove filter resting in filter rack at an angle in
front of blower first. Slide filter back to clear filter
rack ends then lift up and out of filter rack and
blower compartment. (See Fig. 14.)
b. Remove second filter lying above blower. Slide
filter toward rear of furnace and out of blower
compartment. (See Fig. 15.)
14 15
4. Inspect the filter. If torn, replace it.
NOTE: If filter that was shipped with furnace has
been replaced with an electronic air cleaner (EAC),
refer to the EAC Owner’s Manual for maintenance
information.
5. The filters shipped with the furnace are disposable.
If they are dirty, they must be replaced. If your fur-
nace air filters need to be replaced, be sure to use the
same size and type of filter that was originally sup-
plied. Use the furnace filter table and compare your
furnace size with the proper filter size.
FURNACE AIR FILTER TABLE
If you have replaced the factory-provided disposable
filters with permanent washable filters, they may be
cleaned if they are dirty. Wash filters in a sink, bathtub,
or outside with a garden hose. Always use cold tap
water. A mild liquid detergent may be used if neces-
sary. Spray water through filter in the opposite direc-
tion of airflow. Allow filter to dry.
6. Reinstall clean air filters by reversing procedure in
item 3 above.
7. Replace blower access door. (See Fig. 16.)
8. Turn on electrical supply to furnace.
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A CHECK-UP CHECKLIST
Your furnace represents an important investment in
your family’s comfort and your home’s value. To keep
it performing properly and as a preventative to future
problems, have a trained service specialist give your
furnace a professional check-up annually. The fol-
lowing checklist can be used as a guideline to proper
service:
•Check flue and secondary tube passage ways including
chimney — clean if necessary.
•Change oil filter.
•Change nozzle.
•Check and adjust combustion and draft.
•Inspect all vent piping inside structure for deterioration
and vent terminations outside the structure for blockage.
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1
1
2
FURNACE
CASING
DEPTH
(IN.)
FILTER
QUANTITY
AND SIZE
(IN.)
FILTER
TYPE
53-3/4 (2) 12 X 20 X 1 Disposable
60-5/32 (2) 16 X 20 X 1 Disposable
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1

TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or the classified section of your local telephone directory under the
“Heating Equipment’’ or “Air Conditioning Contractors & Systems’’ heading for dealer listing by brand name.
Have available the Model No., Series Letter, & Serial No. of your equipment to ensure correct replacement part.
Carrier Corporation Indianapolis, IN 46231
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations .
Copyright 2004 Carrier Corporation Form: OM58-112 Replaces: OM58-86 Printed in the U.S.A. a6-04 PC 101 Catalog No. 535-80134
•Check oil pipes leading to and inside of your furnace
for leaks.
•Inspect and clean the blower motor and wheel.
•Inspect and change or clean air filters if necessary.
•Inspect all supply- and return-air ducts for obstruc-
tions, air leaks, and insulation. Remedy any problem
when necessary.
•Inspect the return-air duct connections at the furnace to
ensure it is physically sound, sealed to the furnace
casing, and terminates outside the space containing the
furnace.
•Inspect electrical wiring, connections, and compo-
nents for loose connections.
•Examine the physical support of the furnace. Support
should be sound with no cracks, sagging, gaps, etc.
around the base.
•Check furnace for any obvious signs of deterioration.
BEFORE YOU REQUEST
A SERVICE CALL
If your furnace is not operating or not performing
properly, you may save the expense of a service call
by checking a few things yourself before calling for
service.
FOR INSUFFICIENT AIRFLOW:
•Check for dirty air filters.
•Check for blocked return-air or supply-air grilles
throughout your home. Ensure they are open and
unobstructed.
If problem still exists, call your dealer for service.
IF FURNACE FAILS TO OPERATE:
Follow this checklist step by step, advancing to the next
step only if furnace fails to start.
•Check thermostat for proper temperature. Is thermo-
stat set above room temperature?
•Is thermostat set on HEAT?
•Check fuses and circuit breakers. Is electrical supply
on?
•Is valve in oil supply pipe in open position?
•Is the ignition control on the burner not in lockout? The
red button on top of the control must be depressed for 3
sec in order to reset the control.
•Check for obstructions around the vent termination.
If the furnace still fails to operate, call your service rep-
resentative. For your convenience, record the furnace
product and serial numbers on page 2. Should you ever
require service, you will have ready access to the infor-
mation needed by your service representative.