Carrier INFINITY ICS 58MVC User Manual

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Owner's Manual

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 exactly 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 GAS

-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 gas 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.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury and/or death.

Carbon Monoxide is invisible, odorless, and toxic! Carrier Heating and Cooling Systems recommends a carbon monoxide alarm in your home, even if you do not own a gas appliance. Locate the carbon monoxide alarm in the living area of your home and away from gas appliances and doorways to attached garages. Follow the alarm

manufacturer's instruction included with the alarm.

Turn to the Expertg

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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 gas controls, control system parts,

electrical parts that have been wet or the furnace if deemed necessary.

TABLE OF CONTENTS

WELCOME TO A NEW GENERATION OF COMFORT ... 2

FURNACE COMPONENTS .......................... 3

SAFETY CONSIDERATIONS ........................ 4

BEFORE STARTING YOUR FURNACE ................ 4

STARTING AND SHUTTING DOWN YOUR FURNACE .. 5

Steps for Starting Your Furnace .................. 5

Shutting Down Your Furnace .................... 7

PERFORMING ROUTINE MAINTENANCE ............ 7

Filtering Out Trouble ............................ 8

COMBUSTION AREA AND VENT SYSTEM .......... 10

Heading South for the Winter ................... 11

A CHECK-UP CHECKLIST ......................... 12

BEFORE YOU REQUEST A SERVICE CALL .......... 13

INSTALLATION DATA ............................ 14

WELCOME TO A NEW GENERATION OF COMFORT

Congratulations! In light of rising energy costs, the Infinity ICS Gas-Fired, Modulating Condensing Furnace is among the wisest

investment today's homeowner can make. Your new furnace is truly a triumph of technology in home

heating. A revolutionary design employs two heat exchangers to maximize the amount of heat from the fuel consumed. In fact, your new furnace is so efficient, up to 95%* of the heat generated

during combustion is captured and delivered inside your home. That is more than a 33%* increase in heating efficiency over

conventional furnaces. These are among the most energy-efficient furnaces you can buy

today. They also are among the safest and most dependable. We are proud of the technological advances incorporated into the

design of these furnaces. 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.

*The output capacity and any representations of efficiency for this furnace

are based on standard U.S. Department of Energy test procedures.

Fig. 1 - Infinity ICS Variable Capacity Furnace

EFFICIENCY RATING CERTIFIED

As an ENERGYSTAR

Partner, Carrier Corp. has determined that this

product meets the ENERGYSTAR®

guidelines for energy

efficiency.

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FURNACE COMPONENTS

Fig. 2 - Model 58MVC Furnace

1. Combustion-air intake connection to ensure contaminant-

free air (right or left side).

2. Burner sight glass for viewing burner flame.

3. Burner assembly (inside). Operates with energy-saving inshot burners and hot surface igniter for safe, dependable heating.

4. Redundant gas valve. Safe and efficient. Features 1 gas control with 2 internal shutoff valves and one throttling

valve.

5. Vent outlet. Uses PVC pipe to carry flue gas from the furnace's combustion system (right or left side).

6. Inducer motor. Pulls hot flue gases through the heat exchangers, maintaining negative pressure for added safety.

7. Blower access panel safety interlock switch.

8. Air filter and retainer (location in furnace may vary).

9. Condensate drain connection. Collects moisture condensed from burned gases for disposal into home drain system.

(Location in furnace varies.)

10. Heavy-duty blower. Circulates air across the heat exchangers to transfer heat into the home.

11.

Everlastic '_ Secondary condensing heat exchanger (inside). Wrings out more heat through condensation. Constructed with polypropylene-laminated steel to ensure durability.

12.

Primary serpentine heat exchanger (inside). Stretches fuel dollars with the S-shaped heat-flow design. Solid

construction of corrosion-resistant aluminized steel means reliability.

13.

Furnace control board.

14.

3-amp fuse provides electrical and component protection.

15.

Light emitting diode (LED) on furnace control board. Status code light is for diagnosing furnace operation and service

requirements.

16.

Pressure switches ensure adequate flow of flue gas through furnace and out vent system.

17.

Rollout switch (manual reset) to prevent overtemperature.

18.

Junction box for 115-v electrical power supply. (May be located on right or left side)

19.

Transformer (24v) behind furnace control board provides low-voltage power to furnace control board and thermostat.

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SAFETY CONSIDERATIONS

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 iniury. Understand the signal words: DANGER, WARNING, and

CAUTION. DANGER identifies the most serious hazards which will result in severe personal iniury or death. WARNING signifies

hazards which could result in personal iniury or death. CAUTION is used to identify unsafe practices which may result

in minor personal iniury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced

installation, reliability or operation. To minimize the possibility of serious personal iniury, fire,

furnace damage, or improper operation; carefully follow these

safety rules:

• Your gas furnace uses air from outside the home for combustion and vents flue gas to the outdoors. It is not

to be installed using indoor air for combustion. The

vent pipe nmst terminate outside the structure and must

not be obstructed in any way. The air-intake pipe must terminate outside the structure or in a well ventilated

area that is isolated from the living space and the garage (e.g. well ventilated attic or crawlspace). Do not block

or obstruct air openings on furnace or spaces around furnace.

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Fig. 4 - Combustible Materials

Do not cover the furnace, store trash or debris near it, or in any way block the flow of fresh air to the unit.

A furnace installed in an attic or other insulated space

must be kept free and clear of insulating material. Examine the furnace area when the furnace is installed

or when insulation is added. Some materials may be combustible.

This furnace contains SAFETY DEVICES 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. See "Before You

Request a Service Call" section in this manual.

\ ;

\ \

\ \ \ \

\ \

Fig. 3 - Venting

Keep the area around your furnace clear and free of combustible materials, gasoline, and other flammable

liquids and vapors.

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal iniury/death or property damage.

Do not keep combustible materials, gasoline, and other flammable liquids or vapors around your furnace.

FIRE AND UNIT OPERATION HAZARD

Failure to follow this warning could result in personal iniury/death or property damage.

For proper and safe operation the furnace needs air for combustion and ventilation. Do not block or obstruct the

openings on the furnace, air openings to the area in which the furnace is installed, and the space around the furnace.

A08617

BEFORE STARTING YOUR FURNACE

Examine the furnace installation monthly to determine that:

1. All flue gas carrying areas external to the furnace (i.e. chinmey, vent connector) are clear and free of obstructions.

2. The vent connector is in place, slopes upward and is physically sound without holes or excessive corrosion.

3. The return-air duct connection(s) is physically sound, is sealed to the furnace casing, and terminates outside the space containing the furnace.

4. The physical support ofthe furnace is sound without sagging cracks, gaps, etc. around the base.

5. There are no obvious signs of deterioration of the furnace.

Fig. 5 - Burner Flame

6. The burner flames are in good adjustment. (See Fig. 5.)

STARTING AND SHUTTING DOWN YOUR FURNACE

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal injury/death or property damage.

Should the gas supply fail to shut off or if overheating occurs, turn off the manual gas valve to the furnace BEFORE turning off the electrical supply. (See Fig. 8.)

• CHECK AIR FILTER: Before attempting to start your furnace, be sure the furnace filter is clean and in

place. See "Performing Routine Maintenance" section in this manual. Then proceed as follows:

Steps For Starting Your Furnace

1. Set your room thermostat to the lowest temperature setting. (See Fig. 7.)

2. Close the external manual gas valve. (See Fig. 8.)

A92330

Instead of a continuously burning pilot flame which wastes valuable energy, your furnace uses an automatic, hot surface ignition system to light the burners each time the thermostat starts

your furnace. Follow these important safeguards:

• Never attempt to manually light the burners with a match or other source of flame.

A92319

Fig. 6 - Do Not Light Burner with Match

• Read and follow the operating instructions on inside of main furnace door, especially the item that reads as

follows: Wait 5 minutes to clear out any gas. Then smell for gas,

including near the floor. If you smell gas, STOP! Follow "B" in the safety information above on this

furnace label. If you don't smell gas, go to the next step.

• If a suspected malfunction occurs with your gas control system, such as the burners do not light when they should, refer to the shutdown procedures on inside of

main furnace door, or in the "Shutting Down Your Furnace" section and call your dealer as soon as

possible.

A08013

Fig. 7 - Lowest Temperature Setting

""1

A06188

Fig. 8 - Close Valve

3. Turn OFF electrical supply to the furnace. (See Fig. 9.)

4. Remove main furnace door. (See Fig. 10.)

5. The gas valve will have a control switch to turn off and on. Turn the control switch on the gas control to the OFF position and wait 5 minutes. (See Fig. 11.) Then smell for

gas, including near the floor. If you smell gas, STOP! Follow "B" on furnace label. If you don't smell gas, go to next step.

6. After waiting 5 minutes, turn the control switch on the gas control to the ON position. (See Fig. 12.)

Fig. 9 - Turn Off Electrical Supply

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Fig. 13 - Furnace Door Replaced

Fig. 10 - Remove Furnace Door

Fig. 11 - Control Switch to OFF

Fig. 12 - Control Switch to ON

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A04150

A04151

A92359

Fig. 14 - Turn On Electrical Supply

A06189

Fig. 15 - Open Valve

7. Replace main furnace door. (See Fig. 13.)

8. Turn ON the electrical supply to the furnace and wait 1 minute. (See Fig. 14.)

9. Open the external manual gas valve. (See Fig. 15.)

10. Set the room thermostat to a temperature slightly above the room temperature. This will automatically signal the furnace

to start.

11. When the furnace receives the start signal, the inducer is started. When the pressure switch senses that there is suf-

ficient combustion air, the hot surface igniter is energized. After the hot surface igniter is heated for 17 seconds, the gas

valve permits gas to flow to the main burners. After ignition and a time delay of about 30 sec, the furnace blower will start. Variable-capacity furnaces start at medium speed until the

control makes the necessary adjustments to operate the blower at either the low-, medium-, or high-heat speed.

NOTE: If the burners fail to ignite after 4 attempts, the furnace control system will lock out. If lockout occurs, main burners fail to light, or blower does not come on, shut down the furnace and call your dealer for service.

12.Setyourthermostat to the temperature that satisfies your

comfort requirements. SUGGESTION: Setting the thermostat back a few degrees

and compensating for the difference with warmer clothing can make a big difference in your fuel consumption. The few

degrees at the top of your thermostat "comfort level" are the most costly degrees to obtain.

When the room temperature drops below the temperature selected on the thermostat, the furnace will switch on automatically.

When the room temperature reaches the temperature selected on the thermostat, the furnace will be switched off automatically. Some thermostats have a FAN mode with 2 selections: AUTO

and ON. When set on AUTO, the furnace blower cycles on and off. In the ON mode, the furnace blower runs continuously.

Continuous fan keeps the temperature level in your home more evenly balanced. It also permits the indoor air to be continuously

filtered. With the unique feature Fan On Plus'_, the blower speed can be increased or decreased if desired due to change of seasons,

large gatherings in your home, etc. Simply change your FAN from ON to OFF for 1 to 3 seconds (or AUTO depending on

your thermostat), and then return to ON. The blower will switch to the next higher speed. There are at least 3 speeds to choose from. If the blower is running on its highest speed, a request to

change will direct the blower to return to its lowest speed. If you own an Evolution Control, simply push the "fan" button

to change the fan speed.

SHUTTING DOWN YOUR FURNACE

ZONEI / _ FAgk AUTO

_EA=

COOL

A08013

Fig. 16 - Lowest Temperature Setting

Should you ever 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 your room thermostat to the lowest temperature setting. (See Fig. 16.)

2. Turn off electrical supply to the furnace. (See Fig. 17.)

3. Remove main furnace door. (See Fig. 10.)

4. Turn the switch on the gas control to the OFF position. (See Fig. 18.)

A92185

Fig. 17 - 1hrn Off Electrical Supply

A04150

Fig. 18 - Control Switch to OFF

5. Replace the main furnace door. (See Fig. 13.)

6. If the furnace is being shut down because of a malflmction,

call your dealer as soon as possible.

UNIT AND PROPERTY DAMAGE

Failure to follow this caution may result in damage to the furnace and other property damage.

Furnace is not to be installed, operated, and then turned off and left turned off in an unoccupied structure during winter. (See "Heading South for the Winter" procedures in maintenance section on page 12).

PERFORMING ROUTINE MAINTENANCE

NOTE: The qualified installer or agency nmst use only factory-authorized replacement parts, kits, and accessories when modifying this product.

Installing and servicing heating equipment can be hazardous due to gas 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 and qualified service agency personnel. Observe safety precautions in this

manual, on tags, and on labels attached to the furnace, and other safety precautions that may apply.

With proper maintenance and care, your furnace will operate economically and dependably. Instructions for basic maintenance

are found on this and the following pages. However, before beginning maintenance, follow these safety precautions:

ELECTRICALSHOCKHAZARD

Failure to follow this warning could result in personal iniury/death.

Turn off electrical power supply to your furnace before removing the access doors to service or perform

maintenance.

CUT HAZARD

Failure to follow this caution may result in nfinor personal iniury.

Although special care has been taken to nfininfize sharp edges, be extremely careful when handling parts or reaching

into the furnace.

Filtering Out Trouble

UNIT PERFORMANCE HAZARD

Failure to follow this caution may result in product damage. Never operate your furnace without a filter in place. Doing

so may damage the furnace blower motor. An accumulation of dust and lint on internal parts of your

furnace can cause a loss of efficiency.

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 be checked every 3 or 4 weeks and cleaned if necessary. If installed with factory-specified disposable media filter, check

or replace filter before each heating and cooling season. Replace disposable media filter at least once a year.

The air filter is normally located in the blower compartment or in the factory-supplied filter cabinet attached to the side or

bottom of the furnace casing. If air filter has been installed in another location, contact your dealer for instructions. To inspect,

clean, and/or replace the air filter(s), follow these steps:

1. Turn off electrical supply to furnace. (See Fig. 17.)

2. Remove door/access panel.

a. Air Filters Located in Blower Compartment

(1.) Remove main furnace door. (See Fig. 19.) (2.) Remove blower access panel. (See Fig. 20.)

NOTE: It will be necessary to remove 2 screws

b. Air Filters Located in Filter Cabinet

Remove filter cabinet door. (See Fig. 21 and 22.)

NOTE: It will be necessary to remove 1 thumbscrew

3. Remove air filter from furnace.

a. Air Filters Located in Blower Compartment Bottom:

(1.) Slide filter retainer sideways until it is free of

latch. (See Fig. 23.)

(2.) Slide air filter out of furnace. (See Fig. 24.)

b. Air Filters Located in Blower Compartment Side:

(1.) Remove filter retainer from latch. (See Fig. 25.)

(2.) Gently remove air filter and carefully turn the

dirty side up (if dirty) to avoid spilling dirt from the filter. (See Fig. 26.)

c. Air Filter Located in Filter Cabinet:

Slide air filter out of furnace. Keep dirty side up (if dirty) to avoid spilling dirt. (See Fig. 27 and 28.)

4. Inspect the filter. If torn, replace it.

NOTE: If washable filter that was shipped with the furnace has been replaced by:

-Factory specified disposable media filter: Do not clean. If dirty, replace only with media filter having the same part number and size. Install with airflow direction arrow pointing towards blower.

-Electronic air cleaner (EAC): Refer to EAC Owner's Manual for maintenance information.

A05099

Fig. 19 - Remove Furnace Door

A93204

Fig. 20 - Removing Blower Access Panel

A06190

Fig. 21 - Removing Side Filter Cabinet Door

Fig. 22 - Removing Bottom Filter Cabinet Door

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A93012

Fig. 25 - Removing Filter Retainer from Latch

Fig. 23 - Sliding Filter Retainer Sideways

Fig. 24 - Slide Air Filter Out of Furnace

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A93011

A93013

Fig. 26 - Removing Air Filter

A00227

Fig. 27 - Slide Side Filter Out of Furnace

Fig. 28 - Slide Bottom Filter Out of Furnace

A00228

A93205

Fig. 29 - Replace Blower Access Panel

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Fig. 30 - Furnace Door Replaced

A06192

Fig. 31 - Replace Side Filter Cabinet Door

5. If washable filter, wash filter (if dirty) in 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.

6. Reinstall clean air filter.

7. Reinstall filter retainer (for blower compartment locations only).

8. Replace blower access panel and main furnace door (Fig. 29 and 30.) or filter cabinet door. (Fig. 31 and 32.)

9. Turn on electrical supply to furnace.

If your furnace air filter needs to be replaced, be sure to use a factory-authorized filter of the same size that was originally

supplied. Use the filter tables and compare your furnace size with the proper filter size.

Fig. 32 - Replace Bottom Filter Cabinet Door

FURNACE AIR FILTER TABLE

AIR FILTER LOCATED IN BLOWER COMPARTMENT

FURNACE

CASING

WIDTH

IN (mm)

17 1/2

(445)

21 (533)

24 1/2 (1or2) 16X25X

(622) (406 X 635 X 19) (610 X 635 X 19)

AIR FILTER LOCATED IN FILTER CABINET

FILTER CABINET FILTER FILTER

HEIGHT SIZE TYPE

IN (mm) IN (mm) 16 (406) (1) 16 x 25 x 3/4"

20 (508) or

24 (610) or

*Factory-provided with the furnace. Filters may be field modified by

cutting filter material and support rods (3) in filters.

1-Upflow only. Alternate sizes and additional filters may be ordered from

your dealer.

FILTER SIZE - IN (mm)

Side Return1-* Bottom Return*

(1) 16X25X3/4 (1) 16X25X3/4 Washable (406 X 635 X 19) (406 X 635 X 19)

(1) 16X25X3/4 1) 20 X 25 X 3/4 Washable (406 X 635 X 19) (508 X 635 X 19)

3/4 (1) 24 X 25 X 3/4 Washable

(406 X 635 X 19) Washable

(1) 20 x 25 x 3/4"

(508 X 635 X 19)

(1) 20 x 25 x 4-5/16

(508 X 635 X 11o)

(1) 24 x 25 x 3/4"

(610 X 635 X 19)

(1) 24 x 25 x 4-5/16

(610 X 635 X 11o)

Washable

PERSONAL INJURY HAZARD Failure to follow this warning could result in personal

iniury. Use care when cutting support rods in filters to protect

against flying pieces and sharp rod ends. Wear safety

glasses, gloves, and appropriate protective clothing.

FILTER

TYPE

A06193

COMBUSTION AREA AND VENT SYSTEM

Visually inspect the combustion area and vent system before each heating season. Make sure that all PVC pipes leading into the

combustion area and vent are free from any cracks and sags.

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal iniury or death.

If holes are found in the pipes or if any portion has become disconnected, toxic fumes can escape into your

home. DO NOT OPERATE YOUR FURNACE. Call your dealer for service.

Check the combustion-air intake and vent pipe on the outside of your home for blockage.

When dirt, soot, scale, or rust is allowed to build up, your furnace can suffer a loss of efficiency and perform improperly. Accunmlations on the main burners can result in firing out of

normal sequence. This delayed ignition creates an alarmingly loud sound.

A00223

Fig. 33 - Remove Burner Enclosure Front

UNIT OPERATION HAZARD

Failure to follow this caution may result in property damage.

If your furnace makes an especially loud noise when the main burners light, shut down your furnace and call your

dealer.

To inspect the combustion area and vent system, you will need a flashlight. Refer to Fig. 3 and proceed as follows:

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal iniury or death.

If dirt, rust, soot, or scale accumulations are found, call your dealer. Do not operate your furnace.

1. Turn off the gas and electrical supplies to the furnace and remove the main furnace door. (See Fig. 8, 9, and 10.)

2. Remove burner enclosure front. (See Fig. 33.)

Inspect the gas burners, igniter area, and remainder of furnace for dirt, rust, soot, or scale.

3. Inspect the combustion-air and vent PVC pipes for sags, holes, cracks, water leaks, blockage or disconnections.

Horizontal portions of pipes must slope downward toward furnace.

Reinstall burner enclosure front.

If your furnace is free of the above conditions, replace main furnace door and turn on electrical and gas supplies to the furnace. (See Fig. 13, 14, and 15.)

Start the furnace and observe its operation. Watch the burner flames to see if they are clear blue, almost transparent. (See Fig. 34.) If you observe a suspected malfunction, or the

burner flames are not clear blue, call your dealer.

A92330

Fig. 34 - Burner Flame

HEADING SOUTH FOR THE WINTER? DON'T FORGET YOUR FURNACE!

[)NIT AND PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in damage to the furnace and other property damage.

If the furnace is installed in an unconditioned space where the ambient temperatures may be 32°F (0°C) or lower, freeze protection measures must be taken to prevent minor property or product damage.

UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the

furnace and other property damage. Do not use ethylene glycol (Prestone II antifreeze coolant or

equivalent). Failure of plastic components may occur.

Since the furnace uses a condensing heat exchanger, some water will accunmlate in the unit as a result of the heat transfer process.

Therefore, once it has been operated, it cannot be turned off and left off for an extended period of time when temperatures will

reach 32°F (0°C) or lower unless winterized. Follow these procedures to winterize your furnace:

1. Obtain propylene glycol (RV/swimming pool antifreeze or equivalent).

2. Turn off electrical supply to the furnace. (See Fig. 170

A06456

Fig. 35 - Upper Inducer Housing Drain

Connection Cap

3. Remove main furnace door. (See Fig. 19.)

4. Remove upper inducer housing drain connection cap. (See Fig. 35.)

5. Connect field-supplied l/2-in. ID tube to upper inducer housing drain connection.

6. Insert field-supplied funnel into tube.

7. Pour 1 quart of antifreeze into funnel/tube. Antifreeze should run through inducer housing, overfill condensate

trap, and flow into open field drain. (See Fig. 36.)

A06457

Fig. 36 - Pour Antifreeze

8. Remove funnel and tube from inducer housing and replace drain connection cap and clamp.

9. Replace main furnace door. (See Fig. 30.)

10. Propylene glycol need not be removed before restarting furnace.

UNIT AND PROPERTY DAMAGE HAZARD

Failure to follow this warning could result in damage to unit components.

This furnace is designed for continuous return-air minimum temperature of 60 °F (15.6 °C) db or intermittent

operation down to 55°F (12.8°C) db, such as when used with a night setback thermostat. Return-air temperature

must not exceed 85°F (29.4°C) db.

If you choose to leave your furnace on during extended absences do not set your thermostat lower than the limits shown in the

Caution box above. To protect your property from damage from potential problems

due to unintended interruptions in utility services or other events, it is recommended that you either winterize your plumbing

system or have someone check on your house regularly while you are away.

Your dealer or a licensed plumber can give you additional advice about winterizing your plumbing system.

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 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:

• Inspect all flue gas passages, burners, heat exchangers, coupling box(es), and inducer assembly.

• Inspect all combustion-air and vent piping inside structure and vent pipe termination outside the

structure.

• Check gas pipes leading to and inside your furnace for leaks.

• Inspect and clean the blower motor and wheel.

NOTE: The inducer and blower motors are pre-lubricated and require no additional lubrication. These motors can be identified by the absence of oil ports on each end of the motor.

• Inspect and change or clean air filters(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.

Perform an operational checkout to determine whether your furnace is working properly and if it requires

adjustments. Inspect all condensate drain tubes and condensate trap

assembly for leaks. The condensate removal system should be cleaned annually by a qualified service

agency. Refer to the Service and Maintenance Instructions for further information.

• 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 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.

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 temperature?

Is thermostat set on HEAT'?

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

• Is manual shutoff valve in gas supply pipe in open position? (Follow start-up procedures if you open gas

valve.)

NOTE: Turn off electrical supply before continuing with checklist.

Is control switch on gas valve in ON position? (Follow startup procedures if you must reset switch to ON

position.) Check manual reset flame rollout switch located on the

burner box. If furnace has experienced high

temperature conditions, this switch will shut off the furnace. Reset it by pushing the button on the switch. If

it trips again, shut down the furnace and call for service. See "Shutting Down Your Furnace" section in this manual.

• Check for obstructions around the vent termination outside the structure.

If the furnace still fails to operate, call your service representative. 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. This furnace has a light-emitting-diode (LED) status code

display to aid the installer, service technician, or homeowner while installing or servicing the unit. The LED code can be seen

by removing the main furnace door and viewing the LED through the view port in the blower access panel. (See Fig. 2.)

NOTE TO EQUIPMENT OWNER:

For your convenience, please record the model and serial numbers of your new equipment in the spaces provided. This information, along with the installation data and dealer contact information will be helpful should your system require maintenance or service.

FURNACE Model #

Serial #

AIR CONDITIONER OR HEAT PUMP

Model # Serial #

INDOOR COIL (Furnace Coil or Fan Coil) Model # Serial #

This manual must be left with the equipment owner.

INSTALLATION INFORMATION:

Date Installed DEALERSHIP CONTACT INFORMATION:

Company Name

Address

Phone Number

Technician Name

NOTE TO INSTALLER:

Turn to the Expertg:

TO OBTAIN INFORMATION ON PARTS: Consult your installing dealer or classified section of your local telephone directory under the

"Heating Equipment" or "Air Conditioning Contractors & Sys'tems" heading %r dealer listing by brand name.

Have available the Model No.. Seri_:s Letter, & Serial No. of your equipment to ensure correct replacement part.

Manufacturer reserves the right to change, at any time, specifications and design without notice and without obligation.

Catalo_ No: 0M58-128

Replaces: 0M58-124

Carrier INFINITY ICS 58MVC User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual