Carrier OBMAAB User manual

Owner's Manual

A07162

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury

or death.

Do not use this furnace if any part has been under water. A

flood-damaged furnace is extremely dangerous. Attempts to

use the furnace can result in fire or explosion. A qualified

service agency should be contacted to inspect the furnace and

to replace all oil controls, control system parts, electrical parts

that have been wet or the furnace if deemed necessary.

NOTE TO INSTALLER:

This manual must be left with the equipment user:

USER: Please read all instructions in the manual and retain all

manuals for future reference.

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings could result in injury, death,

or property damage.

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.

-Leave the building immediately.

-Immediately call your fuel supplier from a neighbor's

phone. Follow the gas supplier's instructions.

-If you cannot reach your gas supplier, call the fire

department.

Installation and service must be performed by a qualified

installer, service agency or the gas supplier.

TABLE OF CONTENTS

WELCOME TO A NEW GENERATION OF COMFORT .... 2

FURNACE COMPONENTS ........................... 2

SAFETY CONSIDERATIONS ......................... 3

BEFORE STARTING YOUR FURNACE ................. 3

SHUTTING DOWN YOUR FURNACE .................. 4

PERFORMING ROUTINE MAINTENANCE ............. 5

A CHECK-UP CHECKLIST ........................... 5

BEFORE YOU REQUEST A SERVICE CALL ............ 6

INSTALLATION DATA .............................. 6

Fig.1- OBMAA Furnace Components

A07888

FURNACE COMPONENTS

1. Heavy-duty blower circulates air across the heat exchanger

to transfer heat into the home.

2. Stainless steel combustion chamber/primary heat exchanger.

3. Heat exchanger designed and shaped to efficiently transfer

heat from furnace into the home.

4. Fully insulated internal walls to minimize heat loss.

5. Supply-air plenum.

6. High limit control to prevent overtemperature operation.

7. High-performance oil burner.

8. Manual switch to allow user control of constant low-speed

blower operation.

9. Adjustable electronic fan timer control (inside) with low-

voltage electrical terminal strip for easy connection of ther-

mostat, cooling control, electronic air cleaner & humidifier.

10. Return-air plenum.

WELCOME TO A NEW GENERATION OF

COMFORT

Congratulations! In light of rising energy costs, the OBMAA

Multipoise Oil Furnace is among the soundest investments today's

homeowner can make.

Your new furnace is truly a triumph of technology in home

heating. Its 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 enjoyment. 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 operating at peak efficiency year after year.

A07162

Fig. 2- Model OBMAA Multipoise Furnace

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:

HAZARD

Failure to follow this warning could result in personal injury

or death.

Do not store or use gasoline or other flammable vapors and

liquids in the vicinity of this or any other appliance.

A92182

• 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 softener 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 remodeling be sure the

combustion air is fresh and uncontaminated, 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 technician 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 accessories 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 periodically 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 an 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 Z_.

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. DANGER identifies the most serious 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

personal injury or product and property damage. NOTE is used to

highlight suggestions which will result in enhanced installation,

reliability or operation.

OPERATION HAZARD

Failure to follow this warning could result in personal injury

or death.

For use with Grade 2 Fuel Oil maximum. Do not use gasoline,

crankcase oil. or any oil containing gasoline!

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury

or death.

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:

PERSONAL INJURY HAZARD

Failure to follow this caution may result in personal injury.

This furnace is equipped with a constant type primary ignition

system. DO NOT ATTEMPT TO LIGHT WITH A MATCH.

A92319

ELECTRICAL OPERATION HAZARD

Failure to follow this warning could result in personal injury

or death.

HIGH VOLTAGE AT IGNITER. Severe electrical shock,

could result.

•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 Filter: Before attempting to start your furnace, be

sure the furnace air filter is 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 water

supply valve.

3. Make sure blower access door is secured in place.

4. Set your room thermostat to lowest temperature setting.

5. Turn on electric power to furnace.

A92185

6. Open oil supply valve.

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.

A96363

9. When the thermostat calls for heat, power from the trans-

former energizes the fan control board. The fan control en-

ergizes the ignition control. The ignition control will auto-

matically light the burner.

The electronic fan control automatically turns on the

blower. 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 seconds from the

call for heat, the control will lock out. The red button on

top of the control must be depressed for three (3) seconds 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: Setting the ther-

mostat back a few degrees and compensating for the differ-

ence 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 the thermostat, the

furnace will be switched off automatically.

Some thermostats have a FAN mode with two (2) selections,

AUTO and ON. When thermostat is set to AUTO. the furnace

blower cycles on and off, controlled by the thermostat. In ON

mode. the furnace blower runs continuously. This keeps the

temperature level in your home more evenly balanced. It also

continuously filters indoor air.

NOTE: Constant low-speed blower operation can also be

achieved by turning on the constant blower rocker switch located

on the front right side of the furnace. Regardless of room

thermostat setting, blower will run continuously in low speed to

provide constant air circulation. This keeps the temperature level

in your home more evenly balanced. It also continuously filters

indoor air. 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 thermostat to lowest setting.

2. Turn off all electrical power to the furnace.

3. Close oil supply valve.

UNITDAMAGEHAZARD

Failuretofnllowthiscautionmayresultinunitdamage.

Neveroperateyourfurnacewithouttheairfiltersinplace.

Doingsomaydamagethefurnaceblowermotor.An

accumulationofdustandlintoninternalpartsofyourfurnace

cancausealossofefficiency.

A96364

4. If applicable, turn off water supply to humidifier.

5. If furnace blower will be necessary for cooling system, re-

member to turn electric power back on when needed for air

conditioning.

6. If furnace is being shut down because of malfunction, 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 beginning maintenance, follow these

safety precautions.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury/death.

Turn off electrical power supply to your furnace before

performing any maintenance or service on unit.

CUT HAZARD

Failure to fnllow this caution may result in personal injury.

Although special care has been taken to minimize sharp

edges, be extremely careful when handling parts or reaching

into the furnace.

Air Filter

A dirty air filter will cause a loss of airflow in your duct system.

When excessive loss of airflow occurs, the furnace 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 filter(s)

be checked every 3 or 4 weeks and cleaned or replaced at least

once a year. Very dusty conditions, the presence of animal hair and

the like will require more frequent changing or cleaning.

The air filter is installed in an external filter rack which is provided

as standard equipment with furnace.

To inspect, clean, and/or replace the air filter(s), 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 the EAC Owner's Manual for maintenance

information.

4. If filter is dirt3,, 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.

If you have replaced a disposable filter with a permanent 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 detergent 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.

A CHECK-UP CHECKLIST

Your furnace represents an important investment in your family's

comfort and your home's value. Preventive maintenance is the best

way m avoid unnecessary expense and inconvenience. To keep it

performing properly and to prevent future problems, have a trained

service specialist give your furnace a professional check-up

annually. The following 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.

• The tank filter should be replaced as required. The secondary,

10 micron or finer, filter cartridge should be replaced annually.

• Change nozzle.

• Check and adjust combustion and draft.

• 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(s), if necessary.

• Inspect all supply- and return-air ducts for obstructions, air

leaks, and insulation. Remedy any problem when necessary.

• Inspect the return-air duct connections(s) 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 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 fnr 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 aservice call by checking a few things

yourself before calling for service.

For Insufficient Airflow:

• Check for dirty air filter(s).

• 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.

FIRE EXPLOSION HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.

Do not attempt to start the burner when excess oil has

accumulated, when furnace is full of vapor, or when the

combustion chamber is hot.

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 thermostat set above

room tenlperature?

•Is thermostat set on HEAT?

• Check fuses and circuit breakers. Is electrical supply on'?

• Check if main disconnect switch is on.

• Check oil tank gauge and assure that valve is open.

• Is the ignition control on the burner not in lockout? The red

button on top of the control must be depressed for 3 seconds in

order to reset control.

• Check for obstructions around the vent termination outside the

structure.

If the furnace still fails to operate, call your service representative.

Do not attempt to repair the furnace or its controls.

For your convenience, record the furnace product and serial

numbers on back page. Should you ever require service, you will

have ready access to the information needed by your service

representative.

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.

Product No.

Model No.

Serial No.

Product No.

Model No.

Serial No.

Product No.

Model No.

Serial No.

ACCESSORIES

Manufacturer reserves the right to change_ at any time_ specifications and designs without notice and without obligations.

Catalog No: OG-098OBM-01

Replaces: NEW

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