Carrier 58CMR Guide

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WARNING: If the information in this manual
is not followed exactly, a fire or explosion may
Iresult causing property damage, personal injury or
[loss of life.
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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.
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.
NOTE TO INSTALLER: THIS MANUAL MUST BE LEFT WITH THE EQUIPMENT USER.

WELCOME TO A NEW GENERATION
OF COMFORT
Congratulations! In light of rising energy costs, the
58CMR Multipoise Oil Furnace is among the soundest
investments today's homeowner can make.
Your new filrnace 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 market.
The combustion chamber is stainless steel for long life
and it heats up quickly resulting in enhanced comfort
and energy efficiency.
With only minimal care, your new furnace will deliver
many years of money-saving home comfort and enioy-
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 58CMR MULTIPOISE FURNACE
Date Installed
Dealer Name
Address
City
State
Telephone
INSTALLATION DATA
Zip
FURNACE
Product No.
Model No.
Serial No.
SPLIT-SYSTEM
OUTDOOR UNIT:
Product No.
Model No.
Serial No.
Product No.
Model No.
Serial No.
Product No.
Model No.
Serial No.
Product No.
Model No.
Serial No.
ACCESSORIES
INDOOR COIL:
Product No.
Model No.
Serial No.

FURNACE COMPONENTS
SEENOTES: 13, 14
Left side, right side, or bottom.
10
11
12
[] Heavy-duty blower circulates air across the heat
exchanger to transfer heat into the home.
Stainless steel combustion chamber/primary heat
exchanger.
_] Unique silencer system reduces combustion
noise.
_] Heat exchanger designed and shaped to effi-
ciently transfer heat from furnace into the home.
_] Fully insulated internal walls minimize heat loss.
Supply-air plenum.
_] High limit control to prevent overtemperature
operation.
_] Reversible door provides easy access to burner
and controls.
[] High-performance oil burner.
[] Manual switch to allow 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.
[_ Access door to blower.
[_ Air filter (field installed).
[_ Return-air plenum.

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:
Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance:
• 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 clue 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 Ax. 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, WARNING,
and CAUTION. These words are used with the safety-
alert symbol. DANGER identifies the most serious haz-
ards which will result in severe personal injury or death.
WARNING signifies hazards which could result in per-
sonal injury or death. CAUTION is used to identify
unsafe practices which would result in minor personal
injury or product and property damage.
For use with grade 2 Fuel Oil maximum. Do
not use Gasoline, Crankcase Oil, or any Oil
containing Gasoline! Failure to follow this
warning could lead to sooting, fire, explosion,
and/or severe bodily harm.
Never burn garbage or paper in the heating
system and never leave rags, paper, or any
flammable items around the unit.
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:
This furnace is equipped with a constant type
primary ignition system. DO NOT ATTEMPT
TO LIGHT WITH A MATCH.
4

HIGH VOLTAGE AT IGNITOR. Severe electrical
shock, personal injury, or death could result.
• Ifa 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 FILTER: Before attempting to start
your furnace, be sure the furnace air filter is clean and
in place. See" Performing Routine Maintenance" sec-
tion 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
water supply valve.
3. Make sure blower access door is secured in place.
4. Set your room thermostat to lowest temperature set-
ting. (See Fig. 5.)
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5. Turn on electric power to furnace. (See Fig. 6.)
6. Open oil supply valve. (See Fig. 7.)
6 7
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.
.When the thermostat calls for heat, power from the
transformer energizes the fan control board. The
Pan control energizes the ignition control. The igni-
tion control will automatically light the burner.
The electronic Ihn 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 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 temperature
selected on the thermostat, the furnace will be
switched on automatically. When room temperature
reaches the degree selected on thermostat, the fur-
nace 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 contilmously. This keeps the tempera-
ture level in your home more evenly balanced. It
also contilmously filters indoor air.
NOTE: Constant low-speed blower operation can also
be achieved by turning on the constant blower rocker
switch located on side of control box. Regardless of
room thermostat setting, blower will run continuously
in low speed to provide constant air circulation. If con-
stant blower rocker switch is turned off, room thermo-
stat 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 thermostat to lowest setting.
(See Fig. 8.)
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2. Turn off all electrical power to furnace.
(See Fig. 9.)
3. Close 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 furnace is being shut down because of a malfunc-
tion, call your dealer as soon as possible.
ALWAYS KEEP MAIN OIL VALVE TURNED OFF
IF BURNER IS SHUT DOWN FOR AN EXTENDED
PERIOD OF TIME.
PERFORMING ROUTINE
MAINTENANCE
With proper maintenance and care, your furnace will
operate economically and dependably. Instructions for
basic maintenance follow. However, before begilming
maintenance, follow these safety precautions:
11
Although special care has been taken to mini-
mize sharp edges, be extremely careful when
handling parts or reaching into the furnace.
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 furnace air filters be checked
every 3 or 4 weeks and cleaned or replaced as necessary.
Never operate your furnace without the air fil-
ters in place. Doing so may damage the fur-
nace blower motor. An accumulation of dust
and lint on internal parts of your furnace can
cause a loss of efficiency.
The air filter is installed in an external filter rack which
is provided as standard equipment with furnace. To
inspect, clean, and/or replace air filter, follow these
steps:
1. Turn off electrical supply to furnace. (See Fig. 11.)
2. Remove filter from external filter rack.
3. Inspect filter. If torn, replace it.
NOTE: If filter has been replaced with an electronic
air cleaner (EAC), refer to EAC Owner's Manual for
maintenance information.
4. If filter is dirty, it must be replaced. If your furnace
air filter needs to be replaced, be sure to use the same
size and type of filter that was originally supplied.
Use furnace filter table for filter size and filter rack
flange dimensions for return air duct.
FURNACE AIR FILTERTABLE
Turn off all electrical power to furnace before
performing any maintenance or service on
unit. Failure to take this precaution may result
in personal injury due to electrical shock.
FLANGE
OPENING FILTER
SIZE SIZE FILTER
(IN.) (IN.) TYPE
15 X 24 16 X 24 25 X 1 Disposable
17 X 30 18 X 30 X 1 Disposable

If you have replaced a disposable filter with a perma-
nent washable filter, it may be cleaned if it is dirty.
Wash filter in a sink, bathtub, or outside with a garden
hose. Always use cold tap water. A mild liquid deter-
gent may be used if necessary. Spray water through
filter in the opposite direction of airflow. Allow filter
to dry.
5. Re-install clean air filter.
6. Turn on electrical supply to furnace.
ACHECK-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 veto piping inside structure for deterioration
and vent terminations outside the structure for blockage.
• 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 filter 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, colmections, and components
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 Pailsto start.
• Check thermostat for proper temperature. Is thermostat
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 furnace still Pails to operate, call your service represen-
tative. For your convenience, record furnace product and
serial numbers on page 2. Should you ever require
service, you will have ready access to the reformation
needed by your service representative.

Carrier
A United Technologies Company
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 2000 Carrier Corporation Form: OM58-99 Replaces: NEW Printed in the U.SA 11-00 PC 101 Catalog No. 535-80014