Carrier IDEALCOMFORT 58MVC, Infinity ICS 58MVC Service And Maintenance Procedures Manual

I n f i n i t y I C S --- M o d e l 5 8 M V C , D i r e c t V e n t 4 --- W a y M u l t i p o i s e Condensing Gas Furnace With IdealComfortt IdealHumidit yt

Service and Maintenance Procedures

NOTE: Read the entire instruction manual before starting the installation.

WARNING

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

Failure to follow warnings could result in personal injury, death, or property damage.

Improper servicing could result in dangerous operation, serious injury, death, or property damage.

--Before servicing, disconnect all electrical power to

furnace.

--When servicing controls, label all wires prior to

disconnecting. Reconnect wires correctly.

--Verify proper operation after servicing.

WARNING

ELECTRICAL SHOCK, FIRE OR EXPLOSION HAZARD

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

The ability to properly perform maintenance on this equipment requires certain expertise, mechanical skills, tools, and equipment. If you do not possess these, do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User’s Manual.

As an ENERGY STAR® Pa rtner, Carrier Co rporati on has determined that this product meets the ENERGY STAR® guidelines for energy efficiency.

SAFETY CONSIDERATIONS

Recognize safety information. This is the safety--alert symbol

. When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury. Understand the signal words DANGER, WARNING,

CAUTION, and NOTE. These words are used with the safety--alert symbol. 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.

Untrained personnel can perform basic maintenance functions described in User’s Information Manual such as cleaning and replacing air filters. All other operations must be performed by trained service personnel. When working on heating equipment, observe precautions in the literature, on tags, and on labels attached to or shipped with the unit and other safety precautions that may apply.

ama

CERTIFIED

ISO 9001:2000

REGISTERED

WARNING

FIRE OR EXPLOSION HAZARD

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

Never store anything on, near, or in contact with the furnace, such as:

1. Spray or aerosol cans, rags, brooms, dust mops, vacuum cleaners, or other cleaning tools.

2. Soap powders, bleaches, waxes or other cleaning compounds, plastic or plastic containers, gasoline, kerosene, cigarette lighter fluid, dry cleaning fluids, or other volatile fluids.

3. Paint thinners and other painting compounds, paper bags, or other paper products.

CAUTION

CUT HAZARD

Failure to follow this caution may result in personal injury.

Be careful of sharp metal edges, etc. Use care and wear protective clothing, gloves, and safety glasses when removing parts.

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only trained and qualified service agency personnel should install, repair, or service heating equipment.

Follow all safety codes including the National Fuel Gas Code (NFGC) NFPA 54--2006/ANSI Z223.1 -- 2006 in the USA, CSA B149.1--05 National Standard of Canada, Natural Gas and Propane Installation Codes (NSCNGPIC) in Canada, and the Installation Standards, Warm Air Heating and Air Conditioning Systems (NFPA 90B) ANSI/NFPA 90B. Wear safety glasses and work gloves. Have a fire extinguisher available during start--up and adjustment procedures and service calls.

58MVC

Fig. 1 -- Multipoise Furnace in Upflow Orientation

GENERAL

This furnace can be installed as a direct vent (2--pipe) or an optional ventilated combustion air condensing gas furnace. These instructions are written as if the furnace is installed in an upflow application. An upflow furnace application is where the blower is located below the combustion and controls section of the furnace, and conditioned air is discharged upward. Since this furnace can be installed in any of the 4 positions shown in Fig. 2, you may need to revise your orientation to component location accordingly.

AIRFLOW

UPFLOW

AIRFLOW

HORIZONTAL

LEFT

Fig. 2 -- Multipoise Orientation

DOWNFLOW

AIRFLOW

HORIZONTAL

RIGHT

A05085

AIRFLOW

A93041

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may damage furnace components.

Failure to follow this caution may damage furnace components. Electrostatic discharge can affect electronic components. Take precautions during furnace installation and servicing to protect the furnace electronic control. Precautions will prevent electrostatic discharges from personnel and hand tools which are held during the procedure. These precautions will help to avoid exposing the control to electrostatic discharge by putting the furnace, the control, and the person at the same electrostatic potential.

1. Disconnect all power to the furnace. DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY’S ELECTROSTATIC CHARGE TO GROUND.

2. Firmly touch a clean, unpainted, metal surface of the furnace chassis which is close to the control. Tools held in a person’s hand during grounding will be satisfactorily discharged.

3. After touching the chassis, you may proceed to service the control or connecting wires as long as you do nothing that recharges your body with static electricity (for example; DO NOT move or shuffle your feet, DO NOT touch ungrounded objects, etc.).

4. If you touch ungrounded objects (recharge your body with static electricity), firmly touch furnace again before touching control or wires.

5. Use this procedure for installed and uninstalled (ungrounded) furnaces.

6. Before removing a new control from its container, discharge your body’s electrostatic charge to ground to protect the control from damage. If the control is to be installed in a furnace, follow items 1 through 5 before bringing the control or yourself into contact with the furnace. Put all used AND new controls into containers before touching ungrounded objects.

7. An ESD service kit (available from commercial sources) mayalsobeusedtopreventESDdamage.

CARE AND MAINTENANCE

For continuing high performance and to minimize possible furnace failure, it is essential that maintenance be performed annually. Consult your local dealer for maintenance and maintenance contract availability.

WARNING

ELECTRICAL SHOCK HAZARD

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

Turn off the gas and electrical supplies to the unit before performing any maintenance or service. Follow the operating instructions on the label attached to the furnace.

WASHABLE FILTER

FILTER SUPPORT

FILTER RETAINER

WASHABLE FILTER OR DISPOSABLE MEDIA FILTER IN FILTER CABINET

Fig. 3 -- Bottom Filter Arrangement

A00232

WASHABLE

FILTER

IN FURNACE

WASHABLE FILTER OR DISPOSABLE MEDIA FILTER IN FILTER CABINET

Fig. 4 -- Filter Installed for Side Inlet

FILTER RETAINER

A00233

58MVC

The minimum maintenance that should be performed on this equipment is as follows:

1. Check and clean or replace air filter each month as needed.

2. Check blower motor and wheel for cleanliness annually.

3. Check electrical connections for tightness and controls for proper operation each heating season. Service as necessary.

4. Check for proper condensate drainage. Clean as necessary.

5. Check for blockages in combustion--air and vent pipes annually.

6. Check burners for cleanliness annually.

A. CLEANING AND/OR REPLACING AIR FILTER

The air filter arrangement may vary depending on the application or orientation.

WARNING

CARBON MONOXIDE POISONING HAZARD

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

Never operate unit without a filter or with the blower access panel removed. Operating a unit without a filter or with the blower access door removed could cause damage to the furnace blower motor. Dust and lint on internal parts of furnace can cause a loss of efficiency.

NOTE: If the filter has an airflow direction arrow, the arrow must point toward the blower. To clean or replace filters, proceed as follows: If filter is installed in filter cabinet adjacent to furnace:

1. Turn off electrical supply to furnace.

2. Remove filter cabinet door.

3. Slide filter out of cabinet.

4. If equipped with permanent, washable filter, clean filter by spraying cold tap water through filter in opposite direction of airflow. Rinse filter and let dry. Oiling or coating of the filter is not recommended.

5. If equipped with factory specified disposable media filter, replace only with a factory specified media filter of the same size.

6. Slide filter into cabinet.

7. Replace filter cabinet door.

8. Turn on electrical supply to furnace.

If filter is installed in furnace blower compartment:

1. Turn off electrical supply to furnace.

2. Remove main furnace door and blower access panel.

3. Release filter retainer wire. (See Fig. 3 or 4.)

NOTE: Filters shown in Fig. 3 and 4 can be in furnace blower compartment or in filter cabinet, but not in both.

4. Slide filter out of furnace.

5. Furnaces are equipped with permanent, washable filter(s). Clean filter by spraying cold tap water through filter in opposite direction of airflow.

6. Rinse filter and let dry. Oiling or coating filter is not recommended.

7. Slide filter into furnace.

8. Recapture filter retaining wire.

9. Replace blower access panel and main furnace door.

10. Turn on electrical supply to furnace.

B. BLOWER MOTOR AND WHEEL MAINTENANCE

To ensure long life, economy, and high efficiency, clean accumulated dirt and grease from blower wheel and motor annually.

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.

The following items should be performed by a qualified service technician.

PLUG

COLLECTOR BOX

DRAIN TUBE (BLUE &

WHITE STRIPED)

CAP

COLLECTOR BOX

TUBE (PINK)

INDUCER HOUSING

(MOLDED) DRAIN

UBE (BEHIND

COLLECTOR BOX

DRAIN TUBE)

COLLECTOR BOX

DRAIN TUBE (BLUE)

COLLECTOR BOX

TUBE (GREEN ,

ROUTES BEHIND

INDUCER)

CONDENSATE

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

COUPLING (LEFT

58MVC

DRAIN OPTION)

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

FIELD- INSTALLED

FACTORY- SUPPLIED

½ - IN. CPVC STREET

ELBOWS (2) FOR

LEFT DRAIN OPTION

FIELD- INSTALLED

FACTORY- SUPPLIED

DRAIN TUBE

COUPLING (LEFT

DRAIN OPTION)

A07274

Fig. 5 -- Factory--Shipped Upflow Tube Configuration (Shown with Blower Access Panel Removed)

Clean blower motor and wheel as follows:

1. Turn off electrical supply to furnace.

2. Remove main furnace door and blower access panel.

3. Disconnect wires All factory wires can be left connected, but field thermostat connections may need to be disconnected depending on their length and routing.

4. Position control box, transformer, and door switch assembly to right side of furnace casing.

5. If condensate trap is located in left-- or right--hand side of furnace casing, proceed to item 6. Otherwise remove trap and tubing as described below (See Fig. 5.):

a. Disconnect field drain connection from condensate trap.

b. Disconnect drain and relief port tubes from condensate

trap.

c. Remove condensate trap from blower shelf.

6. Remove screws securing blower assembly to blower shelf and slide blower assembly out of furnace. Detach ground wire and disconnect blower motor harness plugs from blower motor.

NOTE: Blower wheel is fragile. Use care.

7. Clean blower wheel and motor by using a vacuum with soft brush attachment. Be careful not to disturb balance weights (clips) on blower wheel vanes. Do not bend wheel or blades as balance will be affected.

8. If greasy residue is present on blower wheel, remove wheel from the blower housing and wash it with an appropriate degreaser. To remove wheel:

a. Mark blower wheel location on shaft before disassembly

to ensure proper reassembly.

b. Loosen setscrew holding blower wheel on motor shaft.

NOTE: Mark blower mounting arms and blower housing so each arm is positioned at the same hole location during reassembly.

c. Mark blower wheel orientation and cutoff plate location

to ensure proper reassembly.

d. Remove screws securing cutoff plate and remove cutoff

plate from housing.

e. Remove bolts holding motor mounts to blower housing

and slide motor and mounts out of housing.

f. Remove blower wheel from housing.

g. Cleanwheelper instructionson degreaser cleaner.Do not

get degreaser in motor.

9. Reassemble motor and blower wheel by reversing items 8b through 8f. Ensure wheel is positioned for proper rotation.

NOTE: Be sure to attach ground wire and reconnect blower harness plugs to blower motor.

10. Reinstall blower assembly in furnace.

11. Reinstall condensate trap and tubing if previously removed.

a. Reinstall condensate trap in hole in blower shelf.

b. Connect condensate trap drain tubes. See Fig. 5 or tubing

diagram on main furnace door for proper tube location.

(1.) Connect 1 tube (blue or blue and white striped)from

collector box.

(2.) Connect 1 tube (violet or unmarked) from inducer

housing.

(3.) Connect one tube (relief port, green or pink) from

collector box.

c. Connect field drain to condensate trap.

NOTE: Ensure tubes are not kinked or pinched, as this will affect operation.

12. Reinstall control box, transformer, and door switch assembly on blower shelf.

13. Reconnect wires.

a. Refer to furnace wiring diagram and connect thermostat

leads if previously disconnected. (See Fig. 21.)

WARNING

ELECTRICAL SHOCK HAZARD

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

Blower access panel door switch opens 115--v power to furnace control. No component operation can occur. Caution must be taken when manually closing this switch for service purposes.

12. Remove burner assembly from burner box. NOTE: All burners are attached to burner bracket and can be removed as 1 assembly.

13. Clean burners with soft brush and vacuum.

14. Reinstall manifold, orifice, and gas valve assembly in burner box. Ensure manifold seal grommet is installed properly and burners fit over orifices.

15. Reinsert the igniter wires in the slot in the manifold grommet, dressing the wires to ensure there is no tension on the igniter itself. (See Fig. 7.)

14. Turn on electrical supply. Manually close blower access panel door switch. Use a piece of tape to hold switch closed. Check for proper rotation and speed changes between heating and cooling by jumpering R to G and R to Y/Y2 on furnace control thermostat terminals. (See Fig.

15.)

15. If furnace is operating properly, release blower access panel door switch, replace blower access panel, and replace main furnace door.

C. CLEANING BURNERS

The following items should be performed by a qualified service technician. If the burners develop an accumulation of light dirt or dust, they may be cleaned by using the following procedure:

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Remove burner box cover.

4. Using backup wrench, disconnect gas supply pipe from furnace gas control valve.

CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace component damage.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.

WARNING

ELECTRICAL SHOCK HAZARD

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

Igniter wires must be securely placed in slot in manifold grommet or else they could become pinched or severed and electrically shorted.

16. Reconnect wires to gas valve and igniter. Refer to furnace wiring diagram for proper wire location.

17. Reinstall burner box pressure tube to gas valve regulator fitting.

18. Reinstall gas supply pipe to furnace gas control valve using backup wrench on gas valve to prevent rotation and improper orientation.

CELL

PANEL

MANIFOLD MOUNTING SCREWS

58MVC

5. Remove wires from gas valve. Note location for reassembly.

6. Remove burner box pressure tube from gas valve regulator fitting.

7. Unplug igniter from harness.

8. Remove igniter leads from slot in manifold grommet.

9. Remove screws that secure manifold to burner box. (See Fig. 6.)

NOTE: Do not remove burner box from cell panel.

10. Remove manifold, orifices, and gas valve as 1 assembly.

11. Remove screws attaching burner assembly in burner box.

NOTE: Use care when removing and reinstalling burners not to strike the hot surface igniter.

GAS

CONTROL

VALVE

GASKET

MANIFOLD

THROTTLING VALVE

GAS VALVE REGULATOR FITTING

A07562

Fig. 6 -- Burner Box Assembly

PRIMARY HX INLET OPENINGS

58MVC

IGNIT ER WIRES MUST BE PLACED IN THIS SLOT

Fig. 7 -- Igniter Wire Placement

A05074

Fig. 8 -- Cleaning Inlet Openings of

Primary Heat Exchangers

A96305

RTV

PAM

A93087

Fig. 9 -- Combustion--air Intake

Housing Gasket Repair

BURNER FLAME

Fig. 10 -- Furnace Pressure and Drain Tubing Diagram

BURNER

FIRE, EXPLOSION, UNIT DAMAGE HAZARD

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

Gas valve switch MUST be facing forward or tilted slightly.

WARNING

58MVC

A07563

MANIFOLD

Fig. 11 -- Burner Flame

NOTE: Use propane gas resistant pipe dope to prevent gas leaks.

DO NOT use Teflon tape.

A89020

WARNING

FIRE OR EXPLOSION HAZARD

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

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.

19. Replace burner box cover.

20. Turn on gas and electrical supplies to furnace.

21. Check for gas leaks.

22. Replace main furnace door.

D. CLEANING HEAT EXCHANGERS

The following items should be performed by a qualified service technician.

Primary Heat

If the heat exchangers get an accumulation of light dirt or dust on the inside, they may be cleaned by the following procedure:

NOTE: If the heat exchangers get a heavy accumulation of soot and carbon, both the primary and secondary heat exchangers should be replaced rather than trying to clean them thoroughly due to their intricate design. A build--up of soot and carbon indicates that a problem exists which needs to be corrected, such as improper adjustment of manifold pressure, insufficient or poor quality combustion air, improper vent termination, incorrect size or damaged manifold orifice(s), improper gas, or a restricted heat exchanger (primary or secondary). Action must be taken to

58MVC

correct the problem.

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace component damage.

Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and hazardous operation.

3. Disconnect wires or connectors to flame rollout switch,

4. Disconnect combustion--air intake pipe from intake

5. Remove the pressure switch tube from intake housing.

6. Remove screws attaching intake housing to burner box,

7. Using backup wrench, disconnect gas supply pipe from

8. Disconnect pressure tubing from gas valve.

9. Remove two screws attaching top filler panel and rotate

10. Remove screws attaching burner box to cell panel. (See

NOTE: Burner box, cover, manifold, gas valve, and burner assembly should be removed as one assembly.

11. Clean heat exchanger openings with a vacuum and a soft

12. Reverse items 4 through 10 for reassembly.

NOTE: Be sure burner box gasket is installed between burner box and cell panel. (See Fig. 6.) If gasket is damaged, replace it.

NOTE: Inspect combustion--air intake housing. If foamed gasket was removed, check for any damage. If gasket is damaged in any way, it must be repaired. To repair, remove damaged gasket section, apply sealant releasing agent such as PAM cooking spray or equivalent (must not contain corn nor canola oil, halogenated hydrocarbons nor aromatic content, to prevent inadequate seal

Exchangers

CAUTION

gas valve, igniter, and flame sensor.

housing.

and rotate intake housing away from burner box for removal.

furnace gas control valve.

upwards to gain access to screws attaching burner box to cell panel.

Fig. 6.)

brush. (See Fig. 8.) NOTE: After cleaning, inspect the heat exchangers to ensure they are free of all foreign objects that may restrict flow of combustion products.

from occurring) to burner box and apply a small bead of G.E. RTV 162, G.E. RTV 6702, or Dow--Corning RTV 738 sealant to edge of combustion--air intake housing. (See Fig. 9.)

CAUTION

UNIT MAY NOT OPERATE

Failure to follow this caution may result in improper unit operation.

Failure to attach ground wire to an adequate casing ground may cause the furnace control to lock out. The ground wire from the gas valve MUST be attached to the burner box attachment screw.

13. Refer to furnace wiring diagram and reconnect wires to flame rollout switch, gas valve, igniter, and flame sensor.

14. Reconnect pressure switch tubes to gas valve and intake housing. Refer to tube routing label on main furnace door for proper tube location. (See Fig. 10.) Be sure tubes are not kinked.

15. Turn on gas and electrical supplies to furnace.

16. Check furnace operation through 2 complete heat operating cycles. Look through sight glass in burner enclosure to check burners. Burner flames should be clear blue, almost transparent. (See Fig. 11.)

17. Check for gas leaks.

WARNING

FIRE OR EXPLOSION HAZARD

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

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.

18. Replace main furnace door.

E. Secondary Heat Exchangers

NOTE: The condensing side (inside) of the secondary heat

exchangers CANNOT be serviced or inspected. A small number of bottom outlet openings can be inspected by removing the inducer assembly. See Flushing Collector Box and Drainage System section for details on removing inducer assembly.

F. FLUSHING COLLECTOR BOX AND DRAINAGE

SYSTEM

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Disconnect inducer motor and pressure switch wires or connectors.

4. Disconnect pressure switch tubes.

5. Disconnect vent pipe from inducer housing outlet by loosening coupling clamp on inducer outlet.

6. Disconnect drain tube from inducer housing. (See Fig.

10.)

NOTE: Ensure the drain tube disconnected from the inducer housing is higher than the collector box opening or water will flow out of tube.

7. Remove inducer housing assembly by removing 4 bolts attaching assembly to cell panel.

CAUTION

WARNING

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace component damage.

DO NOT use wire brush or other sharp object to inspect or dislodge materials in secondary heat exchangers as cutting of the secondary heat exchanger protective coating may occur. Flush with water only.

8. Flush inside of collector box with water until discharge from condensate trap is clean and runs freely.

9. Inspect inside area of collector box for any pieces of foreign materials and remove them if present.

10. Reassemble inducer assembly by reversing items 5-- 7. Tighten the vent coupling clamp screw(s) to 15 in.--lb of torque.

NOTE: If seal between the inducer housing and the collector box is damaged in any way, it must be repaired. To repair, apply sealant releasing agent such as PAM cooking spray or equivalent (must not contain corn nor canola oil, halogenated hydrocarbons nor aromatic content, to prevent inadequate seal from occurring) to inducer housing. (See Fig. 12.) Apply a small bead of G.E. RTV 162, G.E. RTV 6702, or Dow--Corning RTV 738 sealant to groove in collector box.

11. Refer to furnace wiring diagram and reconnect wires to inducer motor and pressure switches or connectors.

12. Reconnect pressure tubes to pressure switches. See diagram on main furnace door for proper location of tubes. Be sure tubes are not kinked. (See Fig. 10.)

13. Turn on gas and electrical supplies to furnace.

14. Check furnace operation through two complete heat operating cycles. Check area below inducer housing, vent pipe, and condensate trap to ensure no condensate leaks occur. If leaks are found, correct the problem.

15. Check for gas leaks.

16. Replace main furnace door.

PAM

RTV

FIRE AND EXPLOSION HAZARD

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

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections.

G. SERVICING HOT SURFACE IGNITER

CAUTION

BURN HAZARD

Failure to follow this caution may result in personal injury.

Allow igniter to cool before removal. Normal operating temperatures exceed 2000_.

The igniter does NOT require annual inspection. Check igniter resistance before removal.

1. Turn off gas and electrical supplies to furnace.

2. Remove main furnace door.

3. Disconnect igniter wire connection.

4. Check igniter resistance. Igniter resistance is affected by temperature. Only check resistance when the igniter is at room temperature.

a. Using an ohm meter, check resistance across both igniter

leads in connector.

b. Cold reading should be between 40 ohms and 70 ohms.

5. Remove igniter assembly.

a. Remove burner box cover.

b. Remove igniter wires from slot in manifold grommet.

(See Fig. 7.)

c. Using a 1/4--in. driver, remove the single screw securing

theigniter bracketto the burner box bracket (See Fig. 13.) and carefully withdraw the igniter and bracket assembly through the front of the burner box without striking the igniter on surrounding parts. Note that the igniterbracket has a handle that extends to the front of the burner box to aid in handling. (See Fig. 13.)

d. Inspect igniter for signs of damage or failure.

BRACKET

IGNITER

9/16˝

EXTENDED IGNITER BRACKET HANDLE

58MVC

Fig. 12 -- Gasket on Collector Box

A93081

IGNITER BRACKET MOUNTING SCREW

11/16˝

A05075

Fig. 13 -- Igniter Bracket

H. ELECTRICAL CONTROLS AND WIRING

CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in premature failure of the igniter.

The igniter is fragile. DO NOT allow it to hit burner box parts while removing or replacing it.

e. If replacement is required, replace igniter on igniter

bracketand then installassemblyinto burner box toavoid damage to the igniter.

6. To replace igniter and bracket assembly, reverse items 5a through 5d.

7. Reconnect igniter wire connection and insert the igniter wires in the slot in the manifold grommet, dressing the igniter wires to ensure there is no tension on the igniter

58MVC

itself. (See Fig.7.)

WARNING

ELECTRICAL OPERATION HAZARD

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

Igniter wires must be securely placed in slot in manifold grommet or else they could become pinched or severed and electrically shorted.

2-5/32˝

A04181

Fig. 14 -- Igniter

ELECTRICAL SHOCK HAZARD

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

There may be more than 1 electrical supply to the unit. Check accessories and cooling unit for additional electrical supplies.

The electrical ground and polarity for 115--v wiring must be maintained properly. Refer to Fig. 15 for field wiring information and to Fig. 21 for unit wiring information.

NOTE: If the polarity is not correct or furnace is not properly grounded, the STATUS LED on the furnace control will flash rapidly and prevent the furnace from operating. The control system also requires an earth ground for proper operation of the furnace control and flame sensor. The 24--v circuit contains an automotive--type, 3--amp fuse located on the furnace control. (See Fig. 16.) Any direct shorts of the 24--v wiring during installation, service, or maintenance will cause this fuse to blow. If fuse replacement is required, use ONL Y a fuse of identical size. The furnace control LED will flash status code 24 when fuse needs to be replaced. With power to the unit disconnected, check all electrical connections for tightness. Tighten all screws on electrical connections. If any smoky or burned connections are found, disassemble the connection, clean all parts, strip wire, and reassemble properly and securely. Reconnect electrical supply to unit and observe unit through 1 complete operating cycle and check for proper operation.

I. CHECKING HEAT TAPE OPERATION

(IF APPLICABLE)

In applications where the ambient temperature around the furnace is 32_F or lower, freeze protection measures are required. If this application is where heat tape has been applied, check to ensure it will operate when low temperatures are present.

NOTE: Heat tape, when used, should be wrapped around the condensate drain trap and drain line. There is no need to use heat tape within the furnace casing. Most heat tapes are temperature activated, and it is not practical to verify the actual heating of the tape. Check the following:

1. Check for signs of physical damage to heat tape such as nicks, cuts, abrasions, gnawing by animals, etc.

2. Check for discolored heat tape insulation. If any damage or discolored insulation is evident, replace heat tape.

3. Check that heat tape power supply circuit is on.

WARNING

8. Reinstall burner box cover.

9. Turn on gas and electrical supplies to furnace.

10. Verify igniter operation by initiating control board self--test feature or by cycling thermostat.

11. Replace main furnace door.

CAUTION

UNIT AND PROPERTY DAMAGE HAZARD

Failure to follow this caution may result in furnace component failures or water property damage.

If this furnace is to be operated in an unconditioned space where the ambient temperatures may be 32_F(0_C) or lower, freeze protection measures must be taken. See CONDENSATE DRAIN PROTECTION section of Installation, Start--up, and Operating Instructions. (See Fig.

17.)

BLK

WHT

GND

115-VOLT FIELD-

SUPPLIED

FUSED

DISCONNECT

BLK

WHT

JUNCTION BOX

FIVE

WIRE

THREE-WIRE

HEATING-

ONLY

CONTROL

BOX

FURNACE

COM

W/W1

Y/Y2

24-VOLT

TERMINAL

BLOCK

NOTE 2

WC Y RG

NOTE 1

NOTES: 1.

Connect Y/Y2-terminal as shown for proper operation.

Some thermostats require a "C" terminal connection as shown.

If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

Fig. 15 -- Field Wiring

FIELD 24-VOLT WIRING FIELD 115-, 208/230-, 460-VOLT WIRING FACTORY 24-VOLT WIRING FACTORY 115-VOLT WIRING

1-STAGE THERMOSTAT TERMINALS

CONDENSING

UNIT

FIELD-SUPPLIED

FUSED DISCONNECT

GND

A95236

208/230- OR 460-VOLT THREE PHASE

208/230VOLT SINGLE PHASE

58MVC

A95236

J. WINTERIZING

CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in furnace component damage.

Freezing condensate left in the furnace may damage the furnace.

If the furnace will be off for an extended period of time in a structure where the temperature will drop to 32_F(0_C) or below, winterize as follows:

1. Turn off electrical supply to furnace.

2. Remove main furnace door.

3. Disconnect upper inducer housing drain connection cap from inducer housing. (See Fig. 18.)

4. Connect field--supplied 1/2--in. I.D. inducer housing tube to upper inducer housing drain connection.

5. Insert funnel in tube and pour one quart of antifreeze, propylene glycol (RV, swimming pool antifreeze, or equivalent) into funnel/tube until it is visible at point where condensate enters open drain. (See Fig. 19.)

CAUTION

UNIT DAMAGE HAZARD

Failure of plastic components may occur.

Do not use ethylene glycol (Prestone II antifreeze/coolant or equivalent automotive type).

6. Replace drain connection cap and clamp to inducer housing.

7. Replace main furnace door.

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

WIRING DIAGRAMS

See Fig. 15, 16 and 21 for the Deluxe 4-- Way Multipoise Furnace wiring diagrams.

TROUBLESHOOTING

Use the troubleshooting guide, the status code LED on the furnace control and the component test to isolate furnace operation problems.

A more detailed troubleshooting guide is available from your distributor.

For an explanation of status codes, refer to service label located on back of main furnace door (See Fig. 20.)

The furnace control stores all status codes for a period of 72 hours, regardless of 115--v or 24--v power interruption.

NOTE: Removing blower access panel opens blower access panel door switch and terminates 115--v power to furnace control. Before removing blower access panel or turning off 115--v power, look into blower access panel sight glass for current LED status.

1. To retrieve status code, proceed with the following:

NOTE: NO thermostat signal may be present at furnace control and all blower time delay periods must be completed.

a. Leave 115 --v power to furnace turned on.

b. Remove main furnace door.

c. Look into blower access panel sight glass for current LED

status code.

d. Remove blower access panel.

e. Turn setup switch SW1 --1 to ON position. (See Fig. 16

or 21 for location.)

f. Manually close blower access panel door switch. Use a

piece of tape to hold switch closed.

3. The control can also assist in troubleshooting by

WARNING

ELECTRICAL SHOCK, UNIT MAY NOT OPERATE HAZARD

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

Blower access panel door switch opens 115--v power to furnace control. No component operation can occur unless switch is closed. Caution must be taken when manually closing this switch for service purposes.

g. The AMBER LED will flash thestatuscodes in the order

of occurence. Record status codes until status code 11 flashes (1 short and 1 long).

h. After status code #11 flashes, the status codes willrepeat

until setup switch SW1--1 is turned off.

i. Remove tape to release blower access panel door switch

58MVC

and replace blower access panel.

j. Operate furnace through 1 heat cycle to test for proper

operation and check LED status.

k. If furnace is operating properlyand LEDsindicateproper

operation, replace main furnace door.

2. Status codes are erased after 72 hours or they can be manually erased by performing the following procedure:

a. Look into blower access panel sight glass for current LED

status code.

b. Remove blower access panel.

c. Turn setup switch SW1 --1 to ON position. (See Fig. 16

or 21 for location.)

d. Jumper thermostat terminals R, W/W1, and Y/Y2 on

furnace control.

e. Manually close blower access panel door switch. Use a

piece of tape to hold switch closed.

f. After status code 11 flashes for at least 2 times, remove

R, W/W1, and Y/Y2 jumpers. g.TurnsetupswitchSW1--1toOFFposition.

h. Remove tape to release blower access panel door switch

and replace blower access panel.

i. Operate furnace through 1 heat cycle to check for proper

operation and check LED status.

j. Iffurnace is operating properlyand LEDsindicateproper

operation, replace main furnace door.

performing a Component Test. The Component Test will functionally operate all furnace components, except the gas valve.

NOTE: The component test feature will not operate if the furnace control is receiving any thermostat signals or until all time delays have expired.

a. To initiate Component Test proceed with the following:

(1.) Leave 115--v power to furnace turned on.

(2.) Remove main furnace door. (3.) Remove blower access panel.

(4.)TurnsetupswitchSW1--6toONposition.

(5.) Manually close blower access panel door switch.

Use a piece of tape to hold switch closed.

b. When items (1) through (5) above have been completed,

the following will occur:

(1.) Inducer motor operates at medium speed through

step (3), then turns off.

(2.) After waiting for 15 sec, hot surface igniter is

energized for 15 sec, then de--energized.

(3.) Main blower motor operates at midrange airflowfor

15 sec, then turns off.

(4.) After component operation test is completed, 1 or

more fault codes (11, 25, 41, or 42) will flash. See service label on back of main furnace door or Fig. 20 for explanation of codes.

NOTE: To repeat component test, turn setup switch SW1--6 to OFF and then back to ON.

c. After component test, perform the following:

(1.) Remove tape to release blower access panel door

switch and turn setup switch SW1--6 to OFF

position. (2.) Replace blower access panel.

(3.) Operate furnace through 1 heat cycle to check for

proper operation and check LED status. (4.) If furnace is operating properly and LEDs indicate

proper operation, replace main furnace door.

MODEL PLUG CONNECTOR

SW1 SETUP

SWITCHES AND

BLOWER OFF-

DELAY

AIR CONDITIONING

(A/C) AIRFLOW

SETUP SWITCHES

24-V THERMOSTAT

TERMINALS

USER INTERFACE

OR ADVANCED

PRODUCT

MONITOR

CONNECTOR

CONTINUOUS FAN

(CF) AIRFLOW

SETUP SWITCHES

OAT

CONNECTOR

SW4 SETUP

SWIT CHES

HUMIDIFIER

TERMINAL (24-VAC

0.5 AMP MAX.

ACRDJ – AIR

CONDITIONING

RELAY DISABLE

JUMPER

58MVC

FLASH

UPGRADE

CONNECTOR

(FACTORY

ONLY)

STATUS AND COMM

LED LIGHTS

3-AMP FUSE

RANSFORMER 24-VAC

CONNECTIONS

115-VAC (L2) NEUTRAL

CONNECTIONS

PL1 – LOW VOLTAGE MAIN

HARNESS CONNECTOR

Fig. 16 -- Variable Capacity Furnace Control

EAC-1 TERMINAL

(115 -VAC 1.0 AMP MAX.)

V12 HK42FZ022 3407

SOFTWARE

VERSION

EXAMPLE:

PART

NUMBER

VOLTAGE CONNECTIONS

DATE

CODE

115-VAC (L1) LINE

PL3 – ECM BLOWER

HARNESS

CONNECTOR

BOARD SERIAL

NUMBER

PL2 – HOT SURFACE

IGNITER & INDUCER

MOTOR CONNECTOR

A07422

32oF MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED

58MVC

A93058

Fig. 17 -- Freeze Protection

A99118

Fig. 18 -- Inducer Housing Drain Tube

A99119

Fig. 19 -- Funnel in Drain Tube and Antifreeze

Running Through Trap

58MVC

A07564

Fig. 20 -- Service Label

58MVC

A06677

Fig. 21 -- Wiring Diagram

SEY SEY SEY

NONO

Close door switch.

Is door switch closed?

Is circuit breaker closed?

Check for continuity in wire from circuit

breaker to furnace.

Close circuit breaker and go back to

START.

Check room thermostat or

interconnecting cable.

Is 24V present at W/W1, W2, Y1, Y/Y2 or

YES

Is there 115V going to switch?

Replace door switch.

Replace transformer.

Does the control respond to W/W1, W2,

G thermostat terminals on the furnace

Y1, Y/Y2, and G (24V) thermostat

control?

signals?

YES

Disconnect all the thermostat wires from

the furnace control.

YES

Run system through a low-heat, medium-

operation. Status codes are erased after

heat, high-heat, or cooling cycle to check

72 hours or can be manually erased by

putting setup switch SW1-1 in the ON

Y/Y2 simultaneously until status code

position and jumpering R, W/W1, and

The thermostat is not compatible with the

furnace control. Either install a ballast

terminal to the thermostat, or replace the

Does the problem repeat when using a

jumper wire?

resistor, connect the Com24V thermostat

thermostat.

YES

58MVC

Replace furnace control.

Troubleshooting Guide

Is there 115V at L1 and L2?

START

Is AMBER LED stat us light on?

YES

will repeat. Status codes

Is there 24V at SEC-1 and SEC-2?

Replace furnace control.

units are twinned, check for proper low-

Check for correct line voltage polarity. If

voltage (24V) transformer phasing.

YES

light blinking

Is AMBER LED status

rapidly without a pause?

To recall previous status codes disconnect the R

Is AMBER LED status light blinking

thermostat connection, reset power, and put setup

switch SW1-1 in the ON position. The AMBER LED

ON/OFF slowly with a combination of

YES

and jumpering R, W/W1, and Y/Y2 simultaneously

by putting setup switch SW1-1 in the ON position

are erased after 72 hours or can be manually erased

setup switch SW1-1 in the OFF position.

Determine status code. The status code

determined by the number of short

than #11?

Was there a previous status code other

YES

Go to section below for the status code

A07581

LOCKOUT Auto-reset

45 CONTROL CIRCUITRY

open.

after 1 hour lockout due

to:

- Gas valve relay stuck

- Flame circuit failure.

- Software check error.

Reset power to clear

lockout. Replace control

if code repeats.

harness and igniter. Replace

Replace furnace control.

Check for continuity in the

defective component.

Check that all gas valves are

Check connections. If OK,

turned on. Replace valve.

replace control.

or rough ignition.

bracket.

and check manifold pressure.

intermittent operation.

Check connections and retry.

(4.0-6.0 nominal) and burners

in high-heat. If burners will

control. If burners operate in

high-heat then switch to

pressure. If OK, check

Allow unit to drop to low-heat,

Check for:

- Inadequate ame carryover

- Low inlet gas pressure.

- Proper ring rate.

- Air leakage around igniter

Repeat test to check for

If current is near typical value

will not stay on, repeat check

still not stay on replace

sensor location.

medium-heat, check manifold

burner carryover and ame

YES

58MVC

SWITCH IS CLOSED - Check for:

WHILE MEDIUM-HEAT PRESSURE

- Low-heat pressure switch stuck open.

43 LOW-HEAT PRESSURE SWITCH OPEN

NOT CLOSE OR REOPENED – If opens

during blower on-delay period, blower will

come on for the selected blower o-delay.

32 LOW-HEAT PRESSURE SWITCH DID

- Disconnected or obstructed pressure

If opens within 5 minutes after ignition the

tubing.

next heating cycle will be restricted to

- Low inlet gas pressure (if LGPS used).

- Improper pressure switch wiring.

high-heat. Check for:

- Proper vent sizing.

- Plugged condensate drain.

- Low inlet gas pressure (if LGPS used).

pipe.

repeat component test by turning setup

switch SW1-6 OFF and then back ON.

NEUTRAL-L2 on the control. Was 115V

Unplug igniter harness from control and

- Water in vent piping, possible sagging

Check for 115V between pin 3 and

thermostat to call for heat. Connect

present for the 15 second period?

Reconnect the R thermostat lead and set

voltmeter across gas valve connections.

Does gas valve receive 24V?

Does gas valve open and allow gas to

Do the main burners ignite?

ow?

Do the main burners stay on?

period. Is the DC microamps below 0.5?

Repeat call for heat and check ame

sensor current during trial for ignition

Clean ame sensor with ne steel wool

4.0 to 6.0 microamps.

and recheck current. Nominal current is

status code #33

tubing.

- Restricted combustion air supply.

- Disconnected or obstructed pressure

- Defective or miswired pressure switches

setup switch SW1-3 ON.

- Excessive wind. If problem persists turn

- Plugged condensate drain.

- Water in vent piping, possible sagging

furnace is operating in high-heat only

limit or ame rollout switch is open or the

33 LIMIT CIRCUIT FAULT – Indicates the

mode due to 2 successive low- or

medium-heat limit trips. Blower will run for

4 min. or until open switch remakes

Flame rollout switch requires manual

continues to ash until blower shuts o.

whichever is longer. If open longer than 3

reset. Check for:

min., code changes to lockout #13. If

open less than 3 min.

- Loose blower wheel.

- Proper rear air bae.

- Defective switch or connections.

- Improper low- or medium-heat gas input

shield.

adjustment.

- Improper or misaligned limit and/or limit

- Stuck high-heat solenoid in gas valve.

34 IGNITION PROVING FAILURE – If ame is

occurs. If ame signal is lost during the

sequence 3 more times before lockout #14

blower on-delay period, blower will come on

for the selected blower o-delay. Check

the following items rst before proceeding

to the next step.

- Gas valve turned o.

not sensed during the trial for ignition

period, the control will repeat the ignition

- Manual shut-o valve.

Is current near typical value? Replace electrode.

Will main burners ignite and stay on? Replace furnace control.

Fixed.

YES

to furnace sheet metal.

- Green/Yellow wire MUST be connected

To determine whether the problem is in the

thermostat connection from the control,

- Flame sensor must not be grounded.

gas valve, igniter, or ame sensor the

system can be operated in component test

Does the igniter glow orange/white by the

mode. To check the igniter remove the R

reset power, and put setup switch SW1-6 in

the ON position to start the component test.

end of the 15 second warm-up period?

erased after 72 hours or can be manually

#11 is ashed. Run system through a low-

erased by putting setup switch SW1-1 in

and Y/Y2 simultaneously until status code

heat, high-heat, or cooling cycle to check

system.

the ON position and jumpering R, W/W1,

11 NO PREVIOUS CODE – Status codes are

powered up during a call for heat (R-

Blower runs for 90 seconds, if unit is

W/W1 closed) or when (R-W/W1 opens)

(115V OR 24V) – Normal operation.

during the blower on-delay period.

12 BLOWER ON AFTER POWER UP –

13 LIMIT CIRCUIT LOCKOUT – Lockout

ame rollout switch is

open longer than 3 minutes or 10

occurs if the limit or

successive limit trips occurred during high-

the blower failed to reach 250 RPM or the

blower failed to communicate within 30

auto-reset after 3 hours. See code 41.

21 GAS HEATING LOCKOUT – Turn o

power and wait 5 minutes to retry. Check

for:

- Stuck closed gas valve relay on control.

See code 33.

heat. Control will auto-reset after 3 hours.

ignite gas and prove ame in 4 attempts.

status code 34.

Control will auto-reset after 3 hours. See

14 IGNITION LOCKOUT – System failed to

15 BLOWER MOTOR LOCKOUT – Indicates

seconds after being turned ON in two

successive heating cycles. Control will

- Miswire or short to gas valve wire.

22 ABNORMAL FLAME-PROVING SIGNAL

Flame is proved while gas valve is de-

energized. Inducer will run until fault is

cleared. Check for:

- Stuck open or leaky gas valve.

Check for:

- Obstructed pressure tube.

23 PRESSURE SWITCH DID NOT OPEN –

- Pressure switch stuck closed.

Check for:

- Short circuit in secondary voltage (24V)

24 SECONDARY VOLTAGE FUSE IS OPEN

A07582

Disconnect thermostat leads to isolate

wiring including thermostat leads.

short circuit.

You have an open wire or bad

terminal on either the BLACK or

WHITE power leads between

the furnace control and the

power choke disconnect it and

blower motor. If you have a

check continuity.

terminal on either the RED or

GREEN wire between the

You have an open wire or bad

GREEN (-)?

YELLOW (+) and PL3-2

YES

You have an open wire or bad

terminal on the YELLOW wire

between the furnace control and

the blower motor.

motor.

furnace control and the blower

Is there 5-VDC at PL3-3

YES

Turn power back on. Is there 115VAC at

YES

58MVC

Replace the furnace control.

Is there 5-VDC at PL13-2 YELLOW (+)

PL14-5 and PL14-4?

PL13-4 GREEN (-)?

Is there 12-VDC at PL13-1 RED (+) and

Is there 12-VDC at PL3-1 RED (+) and

PL3-2 GREEN (-)?

and PL13-4 GREEN (-)?

The voltage just measured should be

very stable and should not uctuate more

than .02-VDC. If the voltage uctuates

more than this get a dierent voltmeter

before proceeding.

YES

Turn power o, reconnect PL13 and

PL14 to the blower motor, then turn

power back on. Connect a DC voltmeter

YES

across PL3-3 YELLOW (+) and PL3-2

more than it did in the previous step?

GREEN (-). Does the voltage uctuate

Turn power o, disconnect PL13 and

PL14 from the blower motor, then turn

power back on. Connect a DC voltmeter

across PL13-3 BLUE (+) and PL13-4

0-VDC but it will uctuate briey several

several times a second. If you have a

show a large change in magnitude on the

have a standard digital voltmeter it will

show a brief uctuation in voltage and the

GREEN (-). The voltage should be near

times a second. If you have an analog

voltmeter the needle will briey go high

digital voltmeter with a bar graph it will

bar graph several times a second. If you

YES

voltmeter used.

magnitude may vary depending on the

41 BLOWER MOTOR FAULT – Indicates the

25 INVALID MODEL SELECTION OR

blower failed to reach 250 RPM or the

SETUP ERROR – If status code 25 only

blower failed to communicate within the

prescribed time limits. Thirty seconds

ashes 4 times on power-up the control is

missing its model plug PL4 and is

after being turned ON or ten seconds

during steady-state operation. Turn power

o and check the following items rst

continuously it could indicate any of the

memory. If status code 25 ashes

defaulting to the model selection stored in

before proceeding to the next step.

- Rubbing blower wheel.

following:

- Model plug PL4 is missing and there is

motor.

- Wiring from furnace control to blower

- Loose blower wheel.

memory. This will happen if you forget

no valid model stored in permanent

to install the model plug PL4 on a

the furnace control, disconnect both

connectors from the blower motor PL13

Remove the R thermostat connection from

service replacement control.

- Thermostat call with SW1-1 ON.

- Thermostat call with SW1-6 ON.

and PL14. Does the blower wheel turn

freely?

- Two dierent furnace models twinned.

- SW1-1 and SW1-6 both ON.

- Service replacement control does not

Replace the blower control module attached to

the blower motor. Follow the instructions with

Replace the blower control module attached to

the blower control module to make sure the

replaced.

You have an open wire or bad terminal on the

entire blower motor does not need to be

blower motor. NOReplace the furnace control.

BLUE wire between the furnace control and the

(+) and PL3-2 GREEN (-). Does the voltage

Connect a DC voltmeter across PL3-4 BLUE

uctuate as described two steps back?

Does the voltage uctuate as described in the

previous step?

the blower motor. Follow the instructions with

entire blower motor does not need to be

the blower control module to make sure the

replaced.

YES

version V12 or later.

recognize new model plugs HK70EZ017

thru HK70EZ021. Need board software

31 MEDIUM-HEAT PRESSURE SWITCH OR

HPSR RELAY DID NOT CLOSE OR

REOPENED - Check for:

inducer motor has not started within 20

- See status code 32.

- HPSR relay may be defective.

42 INDUCER MOTOR FAULT – Indicates the

seconds after a call for heat, the inducer

motor RPM is outside its valid range of

lost for 5 seconds during operation.

operation, or the inducer RPM signal was

Check for:

- Failed inducer motor.

- Improper motor wiring.

- Proper vent sizing.

- Restricted combustion air supply.

A07583

SERVICE TRAINING

Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including:

• Unit Familiarization • Maintenance

• Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials. All include video and/or slides, plus companion book.

Classroom Service Training plus "hands-on" the products in our labs can mean increased confidence that really pays dividends in faster troubleshooting, fewer

58MVC

callbacks. Course descriptions and schedules are in our catalog.

CALL FOR FREE CATALOG 1-800-644-5544

[ ] Packaged Service Training [ ] Classroom Service Training

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Printed in U.S.A. Edition Date: 07/07

Catalog No: 58MVC ---01SM

Replaces: New

Carrier IDEALCOMFORT 58MVC, Infinity ICS 58MVC Service And Maintenance Procedures Manual

Specifications and Main Features

Frequently Asked Questions

User Manual