Carrier 58CVX13510022, 58CVX15510022, 58CVX110-14120, 58CVX110-16120, 58CVX110-13120 Installation Guide

...

Installation, Start-up, Operating and

Service and Maintenance Instructions

SAFETY CONSIDERATIONS ........................ 2 ACCESSORIES ................................... 22

INTRODUCTION .................................. 4 VENTING ....................................... 22

CODES AND STANDARDS .......................... 4

Safety ........................................... 4

General Installation ................................ 4

Combustion and Ventilation Air ...................... 4

Duct Systems ..................................... 4

Acoustical Lining and Fibrous Glass Duct ............... 4

Gas Piping and Gas Pipe Pressure Testing ............... 4

Electrical Connections .............................. 4

Venting ......................................... 4

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

PROCEDURE ..................................... 4

LOCATION ....................................... 5

AIR FOR COMBUSTION AND VENTILATION ......... 8

Outdoor Combustion Air Method .................... 9

The Standard Method: ............................ 9

Combination of Indoor and Outdoor Air ............. 10

INSTALLATION .................................. 10

Bottom Return Air Inlet .......................... 10

Side Return Air Inlet ............................. 10

Leveling Legs (If Desired) ........................ 11

Bottom Return Air Inlet .......................... 11

Suspended Furnace Support ....................... 11

Platform Furnace Support ......................... 11

Roll-Out Protection ............................. 12

Bottom Return Air Inlet .......................... 12

Side Return Air Inlet ............................. 12

Filter Arrangement .............................. 13

AIR DUCTS ...................................... 13

General Requirements ............................ 13

Ductwork Acoustical Treatment .................... 13

Supply Air Connections .......................... 14

Upflow and Horizontal Furnaces ................... 14

Downflow Furnaces ............................. 15

Return Air Connections .......................... 18

Downflow Furnaces ............................. 18

Upflow and Horizontal Furnaces ................... 18

GAS PIPING ..................................... 19

ELECTRICAL CONNECTION ....................... 20

START-UP, ADJUSTMENT, AND SAFETY CHECK ..... 34

General ........................................ 34

Start-Up Procedures .............................. 37

Adjustments ..................................... 37

Check Safety Controls ............................. 45

Checklist ....................................... 46

SERVICE AND MAINTENANCE PROCEDURES ....... 46

General ........................................ 46

Care and Maintenance ............................. 47

Sequence of Operation ............................. 52

Wiring Diagram .................................. 56

Troubleshooting .................................. 56

Accessory List ................................... 59

PARTS REPLACEMENT INFORMATION GUIDE ....... 60

Always Ask For

Use of tile AIIR[ Cmlified 1-,iMark indicates a manul_lcturer's pallicipation in tile program. ]or verification of cmlificatkln lbr individual products, go to www.ahridireclow.org.

ISO9001

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

Portions of the text and tables are reprinted from NFPA 54/ANSI Z223.1-2009©, with permission of National Fire Protection

Association, Quincy, MA 02269 and American Gas Association, Washington DC 20001. This reprinted material is not the

complete and official position of the NFPA or ANSI on the referenced subject, which is represented only by the standard in

its entirety.

SAFETY CONSIDERATIONS

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in dangerous operation, personal iniury, death, or property damage.

Improper installation, adjustment, alteration, service, maintenance, or use can cause carbon monoxide poisoning, explosion, fire, electrical shock, or other conditions which may cause personal iniury or property damage. Consult a qualified service agency, local gas supplier, or your

distributor or branch for information or assistance. The qualified service agency must use only factory-authorized

and listed kits or accessories when modifying this product.

FURNACE RELIABILITY HAZARD Failure to follow this caution may result in unit component

damage. Application of this furnace should be indoors with special

attention given to vent sizing and material, gas input rate, air temperature rise, unit leveling, and unit sizing.

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 flmctions 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 literature, on tags,

and on labels attached to or shipped with furnace and other safety precautions that may apply.

These instructions cover minimum requirements and conform to existing national standards and safety codes. In some instances,

these instructions exceed certain local codes and ordinances, especially those that may not have kept up with changing residential construction practices. We require these instructions as a minimum for a safe installation.

CUT HAZARD

Failure to follow this caution may result in personal iniury. Sheet metal parts may have sharp edges or burrs. Use care

and wear appropriate protective clothing, safety glasses and gloves when handling parts, and servicing furnaces.

Wear safety glasses, protective clothing and work gloves. Have fire extinguisher available during start-up and adjustment

procedures and service calls. 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. These words are used with the safety-alert symbol.

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

which could result in personal iniury or death. CAUTION is used

to identify hazards 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.

1. Use only with type of gas approved for this furnace. Refer to the furnace rating plate.

2. Install this furnace only in a location and position as spe- cified in the "Location" section of these instructions.

3. Provide adequate combustion and ventilation air to the furnace space as specified in "Air for Combustion and

Ventilation" section.

4. Combustion products must be discharged outdoors. Con- nect this furnace to an approved vent system only, as spe-

cified in the "Venting" section of these instructions.

5. Never test for gas leaks with an open flame. Use a com- mercially available soap solution made specifically for the detection of leaks to check all connections, as specified in

the "Gas Piping" section.

6. Always install furnace to operate within the furnace's in- tended temperature-rise range with a duct system which has an external static pressure within the allowable range,

as specified in the "Start-Up, Adjustments, and Safety Check" section. See furnace rating plate.

7. When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space con-

taining the furnace, the return air shall also be handled by duct(s) sealed to the furnace casing and terminating out-

side the space containing the furnace. See "Air Ducts" sec- tion.

8. A gas-fired furnace for installation in a residential garage must be installed as specified in the warning box in the

"Location" section.

9. The furnace may be used for construction heat provided that the furnace installation and operation complies with

the first CAUTION in the LOCATION section of these in- structions.

10. These Multipoise Gas-Fired Furnaces are CSA (formerly A.G.A. and C.G.A.) design-certified for use with natural

and propane gases (see furnace rating plate) and for install- ation in alcoves, attics, basements, closets, utility rooms, crawlspaces, and garages. The furnace is factory-shipped

for use with natural gas. A CSA (A.G.A. and C.G.A.) lis- ted accessory gas conversion kit is required to convert fur-

nace for use with propane gas.

11. See Fig. 1 for required clearances to combustible construc- tion.

12. Maintain a 1-in. (25 mm) clearance from combustible ma- terials to supply air ductwork for a distance of 36 in. (914

mm) horizontally from the furnace. See NFPA 90B or loc- al code for further requirements.

13. These furnaces SHALL NOT be installed directly on car- peting, tile, or any other combustible material other than

wood flooring. In downflow installations, factory access- ory floor base MUST be used when installed on combust-

ible materials and wood flooring. Special base is not re- quired when this furnace is installed on manufacturer's

Coil Assembly Part No. CNRV, CNPV, CAP, or CAR or when Coil Box Part No. KCAKC is used. See Fig. 1 for

clearance to combustible construction information.

improper adjustment, alteration, service, maintenance, or installation can cause serious injury or death.

Read and follow instructions and precautions in User's Information Manual

provided with this furnace. Installation

and service must be performed by a

qualified service agency or the gas

supplier.

Check entire gas assembly for leaks after lighting this appliance.

iNSTALLATION

1. This furnace must be installed in accordance with the manufacturer's

instructions and local codes. In the absence of local codes, follow the National

Fuel Gas Code ANSI Z223.1 / NFPA54 or CSA B-149. 1 Gas Installation Code.

2. This furnace must be installed so there are provisions for combustion and ventilation

air. See manufacturer's installation information provided with this appliance.

OPERATION

This furnace is equipped with manual reset limit switch(es) in burner compartment to

protect against overheat conditions that can result from inadequate combustion air

supply or blocked vent conditions.

1. Do not bypass limit switches.

2. If a limit opens, call a quallified serviceman to correct the condition

and reset limit switch.

Fig. 1 - Clearances to Combustibles

iNSTALLATION

MiNiMUMiNCHESCLEARANCETO COMBUSTIBLECONSTRUCTION

This forced air furnace is

equipped for use with natural gas at altitudes 0 - 10,000 ft

(0 - 3,050m).

An accessory kit, supplied by

the manufacturer, shall be used to convert to propane gas use or may be required for some

natural gas applications.

This furnace is for indoor

installation in a building constructed on site.

This furnace may be installed

on combustible flooring in alcove or closet at minimum clearance

as indicated by the diagram from combustible material.

This furnace may be used with

a Type B-1 Vent and may be vented in common with other

gas fired appliances.

This furnace is approved for UPFLOW, DOWNFLOW, and

HORIZONTAL installations.

Clearancearrows donotchangewith

furnaceorientation.

Clearancein inches

Vent Clearance to combustibles:

For SingleWallvents6 inches(6 po). ForType B-1venttype I inch (1 po).

MINIMUM INCHES CLEARANCE TO

COMBUSTIBLE CONSTRUCTION

DOWNFLOWPOSiTiONS:

Installation on non-combustible floors only. For Installation on combustible flooring only when installed on special

base, Part No. KGASB0201ALL or NAHA01101SB, Coil Assembly, Part No. CAR, CAP, CNPV, CNRV, END4X, ENW4X, WENC, WTNC,

WENW OR WTNW. 18 inches front clearance required for alcove.

Indicates supply or return sides when furnace is in the horizontal position. Line contact only permissible between lines formed by

intersections of the Top and two Sides of the furnace jacket, and building joists, studs or framing.

IIIIIIIIIIIIIIIIIIIIIIIIIII

336996-161 REV. C

A10269

INTRODUCTION

The Series 160 4-way multipoise Category I fan-assisted furnace is CSA (formerly A.G.A. and C.G.A.) design-certified. A

Category I fan-assisted furnace is an appliance equipped with an integral mechanical means to either draw or force products of

combustion through the combustion chamber and/or heat exchanger. The furnace is factory-shipped for use with natural

gas. This furnace is not approved for installation in mobile homes, recreational vehicles, or outdoors.

'1_1! \ MAX80°F / 27 C

FRONT

MIN60°F / 16 C

only the NFGC, contact the American Gas Association, 400 N. Capitol Street, N.W., Washington, DC 20001 (www.AGA.org.). Combustion and Ventilation Air

Section 9.3 NFPA 54/ANSI Z223.1-2009, Air for Combustion and Ventilation.

Duct Systems Air Conditioning Contractors Association (ACCA) Manual D,

Sheet Metal and Air Conditioning Contractors National Association (SMACNA), or American Society of Heating,

Refrigeration, and Air Conditioning Engineers (ASHRAE) 2001 Fundamentals Handbook Chapter 34 or 2000 HVAC Systems

and Equipment Handbook Chapters 9 and 16. Acoustical Lining and Fibrous Glass Duct

Current edition of SMACNA and NFPA 90B as tested by UL Standard 181 for Class I Rigid Air Ducts

Gas Piping and Gas Pipe Pressure Testing NFPA 54/ANSI Z223.1-2009 ; chapters 5, 6, and 7 and National

Plumbing Codes. Electrical Connections

National Electrical Code (NEC) ANSI/NFPA70-2011 Venting

NFPA 54/ANSI Z223.1-2009; chapters 12 and 13.

A06745

Fig. 2 - Return Air Temperature

This furnace is designed for minimum continuous return-air temperature of 60°F (15 oC) db or intermittent operation down to

55°F (13°C)db such as when used with a night setback thermostat. Return-air temperature must not exceed 80 oF (27 oC) db. Failure to follow these return-air temperature limits may

affect reliability of heat exchangers, motors, and controls. (See Fig. 20

For accessory installation details, refer to the applicable instruction literature.

NOTE: Remove all shipping brackets and materials before operating the furnace.

CODES AND STANDARDS

Follow all national and local codes and standards in addition to these instructions. The installation must comply with regulations of the serving gas supplier, local building, heating,

plumbing, and other codes. In absence of local codes, the installation must comply with the national codes listed below and

all authorities having jurisdiction. In the United States, follow all codes and standards for the

following: Safety NFPA 54/ANSI Z223.1-2009 and the Installation Standards,

Warm Air Heating and Air Conditioning Systems ANSI/NFPA 90B.

General Installation Current edition of the NFGC and the NFPA 90B. For copies,

contact the National Fire Protection Association Inc.,

Batterymarch Park, Quincy, MA 02269; (www.NFPA.org) or for

ELECTROSTATIC DISCHARGE (ESD)

PRECAUTIONS PROCEDURE

FURNACE RELIABILITY HAZARD Failure to follow this caution may result in unit component

damage. 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. Multiple disconnects

may be required. 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 the clean, unpainted, metal surface of the fur- nace chassis which is close to the control. Tools held in a

person's hand during grounding will be satisfactorily dis- charged.

3. After touching the chassis, you may proceed to service the control or connecting wires as long as you do nothing to

recharge your body with static electricity (for example; DO NOT move or shuffle your feet, do not touch un-

grounded objects, etc.).

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BOTTOM_,.ET

NOTES:

1. Two additional 7/8-in. (22 mm) diameter holes are located in the top plate.

2. Minimum return-air openings at furnace, based on metal duct. if flex duct is used, see flex duct manufacturer's recommendations for equivalent diameters. a, For 800 CFM-16-in. (406 mm) round or 14 1/2 x 12-in. (368 x 305 mm) rectangle.

b. For 1200 CFM-20-in. (508 mm) round or 14 1/2 x 19 1/2-in. (368 x 495 mm) rectangle. c. For 1600 CFM-22-in. (559 mm) round or 14 1/2 x 22 1/16-in. (368 x 560mm) rectangle.

d. For airflow requirements above 1800 CFM, see Air Delivery table in Product Data literature for specific use of single side inlets. The use of both side inlets,

a combination of 1 side and the bottom, or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM.

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t_al

A10290

Fig. 3 - Dimensional Drawing

Table 1 - Dimensions - In. (mm)

FURNACE SIZE CABINET OUTLET BOTTOM CONNECTION FILTER MEDIA

070-12/036070 14-3/16 (360) 12-9/16 (319) 9-5/16 (237) 12-11/16 (322) 4 (102) 115 (52) 16 (406) 090-16/048090 17-1/2 (445) 15-7/8 (403) 11-9/16 (294) 16 (406) 4 (102) 130 (59) 16 (406) 110-20/060110 21 (533) 19-3/8 (492) 13-5/16 (338) 19-1/2 (495) 4 (102) 155 (70) 20 (508) 135-22/066135 24-1/2 (622) 22-7/8 (581) 15-1/16 (383) 23 (584) 4 (102)* 166 (75) 24 (610)

155-22/066155 24-1/2 (622) 22-7/8 (581) 15-1/16 (383) 23 (584) 4 (102)* 175 (79) 24 (610)

"135 and 155 size furnaces require a 5 or 6-in. (127 or 152 mm) vent. Use a vent adapter between furnace and vent stack. See Installation Instructions for complete installation requirements.

A B D VENT ACCESSORY

WIDTH WIDTH BOTTOM FLUE INLET WIDTH SIZE LB (KG) CABINET SIZE

4. If you touch ungrounded objects (and recharge your body

with static electricity), firmly touch a clean, unpainted metal surface of the furnace again before touching control

or wires.

5. Use this procedure for installed and uninstalled (ungroun- ded) furnaces.

6. Before removing a new control from its container, dis- charge your body's electrostatic charge to ground to pro-

tect the control from damage. If the control is to be in- stalled in a furnace, follow items 1 through 4 before

bringing the control or yourself in contact with the fur-

TOP AND SHIP WT.

COLLAR

LOCATION

GENERAL This multipoise furnace is shipped in packaged configuration.

Some assembly and modifications are required when used in any of the four applications shown in Fig. 4.

NOTE: For high-altitude installations, the high-altitude conversion kit MUST be installed at or above 5500 ft. (1676 M)

above sea level. Obtain high-altitude conversion kit from your area authorized distributor.

nace. Put all used and new controls into containers before touching ungrounded objects.

7. An ESD service kit (available from commercial sources) may also be used to prevent ESD damage.

AIRFLOW

THE BLOWER iS LOCATED

TOTHE RIGHT OFTHE

BURNER SECTION,AND

AIR CONDiTiONEDAiR iS

DISCHARGEDTOTHE LEFT.

THE BLOWER iS

LOCATEDABOVETHE

BURNERSECTION, AND

CONDiTiONED AIR iS

DISCHARGEDDOWNWARD AIRFLOW

Fig. 4 - Multipoise Orientations

THE BLOWER iS

LOCATEDBELOWTHE

BURNER SECTION,AND

CONDiTiONED AiR iS

DISCHARGED UPWARD.

AIRFLOW

THE BLOWER iS

LOCATED TO THE LEFT

OF THE BURNER SECTION,

AND CONDiTiONED AiR iS

DISCHARGED TO THE RIGHT.

A02097

This furnace must:

• be installed so the electrical components are protected from water.

• not be installed directly on any combustible material other than wood flooring (refer to SAFETY CONSIDERATIONS).

• be located close to the chimney or vent and attached to an air distribution system. Refer to Air Ducts section.

• be provided ample space for servicing and cleaning.

Always comply with minimum fire protection clear-

ances shown on the furnace clearance to combustible construction label.

CARBON MONOXIDE POISONING / COMPONENT

DAMAGE HAZARD

Failure to follow this warning could result in personal injury or death and unit component damage.

Corrosive or contaminated air may cause failure of parts containing flue gas, which could leak into the living space. Air for combustion must not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide. These elements can corrode heat exchangers and

shorten furnace life. Air contaminants are found in aerosol sprays, detergents, bleaches, cleaning solvents, salts, air

fresheners, and other household products. Do not install furnace in a corrosive or contaminated atmosphere. Make sure all combustion and circulating air requirements are met,

in addition to all local codes and ordinances.

The following types of furnace installations may require OUTDOOR AIR for combustion due to chemical exposures:

• Commercial buildings

• Buildings with indoor pools

• Laundry rooms

• Hobby or craft rooms, and

• Chemical storage areas

If air is exposed to the following substances, it should not be used for combustion air, and outdoor air may be required for

combustion:

• Permanent wave solutions

• Chlorinated waxes and cleaners

• Chlorine based swimming pool chemicals

• Water softening chemicals

• De-icing salts or chemicals

• Carbon tetrachloride

• Halogen type refrigerants

• Cleaning solvents (such as perchloroethylene)

• Printing inks, paint removers, varnishes, etc.

• Hydrochloric acid

• Cements and glues

• Antistatic fabric softeners for clothes dryers

• Masonry acid washing materials

All fuel-burning equipment must be supplied with air for fuel combustion. Sufficient air must be provided to avoid negative

pressure in the equipment room or space. A positive seal must be made between the furnace cabinet and the return-air duct to

prevent pulling air from the burner area and from draft safeguard opening.

FIRE, INJURY OR DEATH HAZARD Failure to follow this warning could result in personal

iniury, death and/or property damage. When the furnace is installed in a residential garage, the

burners and ignition sources must be located at least 18 in. (457 mm) above the floor. The furnace must be located or protected to avoid damage by vehicles. When the furnace is installed in a public garage, airplane hangar, or other building having a hazardous atmosphere, the furnace must

be installed in accordance with the NFPA 54/ANSI Z223.1-2009. (See Fig. 5.)

18qN. (457.2 mm)

MINIMUM TO BURNERS

A93044

Fig. 5 - Installation in a Garage

FIRE HAZARD

Failure to follow this warning could result in personal

iniury, death and/or property damage.

Do not install the furnace on its back or hang furnace with

control compartment facing downward. Safety control

operation will be adversely affected. Never connect

return-air ducts to the back of the furnace. (See Fig. 6.)

LOCATION RELATIVE TO COOLING EQUIPMENT The cooling coil must be installed parallel with, or on the

downstream side of the unit to avoid condensation in the heat exchangers. When installed parallel with the furnace, dampers or

other flow control must prevent chilled air from entering the furnace. If the dampers are manually operated, they must be

equipped with means to prevent operation of either unit unless the damper is in the full-heat or full-cool position.

PERSONAL INJURY AND/OR PROPERTY

DAMAGE HAZARD

Improper use or installation of this furnace may result in premature furnace component failure. This gas furnace may be used for heating buildings under construction provided

that:

-The furnace is permanently installed with all electrical wiring, piping, venting and ducting installed according to these installation instructions. A return air duct is provided, sealed to the furnace casing, and terminated outside the space containing the furnace. This prevents a negative pressure condition as created by the circulating air blower, causing a flame rollout and/or drawing combustion products into the structure.

-The furnace is controlled by a thermostat. It may not be "hot wired" to provide heat continuously to the structure

without thermostatic control.

-Clean outside air is provided for combustion. This is to minimize the corrosive effects of adhesives, sealers and other construction materials. It also prevents the entrainment of drywall dust into combustion air, which can cause fouling and plugging of furnace components.

-The temperature of the return air to the furnace is maintained between 55°F (13°C) and 80°F (27°C), with

no evening setback or shutdown. The use of the furnace while the structure is under construction is deemed to be

intermittent operation per our installation instructions.

-The air temperature rise is within the rated rise range on the furnace rating plate, and the gas input rate has been set to the nameplate value. -The filters used to clean the circulating air during the construction process must be either changed or thoroughly cleaned prior to occupancy.

-The furnace, ductwork and filters are cleaned as necessary to remove drywall dust and construction debris from all

HVAC system components after construction is completed.

-Verify proper furnace operating conditions including ignition, gas input rate, air temperature rise, and venting

according to these installation instructions.

BACK

A02054

Fig. 6 - Prohibit Installation on Back

Table 2 - Minimum Free Area Required for Each Combustion Air opening of Duct to Outdoors

TWO HORIZONTAL DUCTS SINGLE DUCT OR OPENING TWO OPENINGS OR VERTICAL DUCTS

FURNACE (1 SQ. IN./2,000 BTUH) (1,100 SQ. MM/KW) (1 SQ. IN./3,000 BTUH) (734 SQ. MM/KW) (1 SQ. IN./4,000 BTUH) (550 SQ. MM/KW)

iNPUT Free Area of Opening Round Duet Free Area of Opening Round Duet Free Area of Opening Round Duet

(BTUH) and Duet Dia. and Duet Dia. and Duet Dia.

Sq. In. (Sq. ram) In. (ram) Sq. In. (Sq. ram) In. (ram) Sq. In. (Sq. ram) In. (ram)

44,000 22 (14194) 6 (152) 14.7 (9484) 5 (127) 11 (7096) 4 (102) 66,000 33 (21290) 7 (178) 22 (14193) 6 (152) 16.5 (10645) 5 (127)

88,000 44 (28387) 8 (203) 29.3 (18903) 7 (178) 22 (14193) 6 (152) 110,000 55 (35484) 9 (229) 36.7 (23677) 7 (178) 27.5 (17742) 6 (152) 132,000 66 (42580) 10 (254) 44 (28387) 8 (203) 33 (21290) 7 (178) 154,000 77 (49677) 10 (254) 51.3 (33096) 9 (229) 38.5 (24839) 8 (203)

E : Determining Free Area

FURNACE WATERHEATER TOTALINPUT

110,000 + 30,000 = (140,000 divided by 4,000) = 35.0 Sq. In. for each two Vertical Ducts or Openings

66,000 + 40,000 = (106,000 divided by 3,000) = 35.3 Sq. In. for a Single Duct or Opening 88,000 + 30,000 = (118,000 divided by 2,000) = 59.0 Sq. In. for each of two Horizontal Ducts

Table 3 - Minimum Space Volumes for 100 % Combustion, Ventilation, and Dilution from Indoors

OTHER THAN FAN-ASSISTED TOTAL FAN-ASSISTED TOTAL

(1,000'S BTUH GAS INPUT RATE) (1,000'S BTUH GAS INPUT RATE)

30 40 50 44 66 88 110 132 154

AOH Space Volume Ft 3 (M 3)

0.60 (29.7) (39.6) (49.5) (31.1) (46.7) (62.2) (77.8) (93.4) (109.0)

0.50 (35.6) (47.5) (59.4) (37.3) (56.0) (74.7) (93.4) (112.1) (130.8)

0.40 (44.5) (59.4) (74.3) (46.7) (70.0) (93.4) (116.8) (140.1) (163.5)

0.30 (59.4) (79.2) (99.1) (62.2) (93.4) (124.5) (155.7) (186.8) (218.0)

0.20 (89.1) (118.9) 5,250 (148.6) (93.4) (140.1) (186.8) (233.6) (280.3) (327.0)

0.10 (178.3) (237.8) (297.3) (186.8) (280.3) (373.7) (467.2) (560.6) (654.1)

0.00 NP NP NP NP NP NP NP NP NP

NP = Not Permitted

1,050 1,400 1,750 1,100 1,650 2,200 2,750 3,300 3,850

1,260 1,680 2,100 1,320 1,980 2,640 3,300 3,960 4,620

1,575 2,100 2,625 1,650 2,475 3,300 4,125 4,950 5,775

2,100 2,800 3,500 2,200 3,300 4,400 5,500 6,600 %700

3,150 4,200 3,300 4,950 6,600 8,250 %900 11,550

6,300 8,400 10,500 6,600 %900 13,200 16,500 1%800 23,100

AIR FOR COMBUSTION AND

VENTILATION

Provisions for adequate combustion, ventilation, and dilution air must be provided in accordance with:

• U.S. Installations: Section 9.3 of the NFPA 54/ANSI Z223.1-2009, Air for Combustion and Ventilation and

applicable provisions of the local building codes.

FURNACE CORROSION HAZARD Failure to follow this caution may result in furnace damage.

Air for combustion nmst not be contaminated by halogen compounds, which include fluoride, chloride, bromide, and iodide. These elements can corrode heat exchangers and

shorten furnace life. Air contaminants are found in aerosol sprays, detergents, bleaches, cleaning solvents, salts, air

fresheners, and other household products.

CARBON MONOXIDE POISONING HAZARD

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

The operation of exhaust fans, kitchen ventilation fans, clothes dryers, attic exhaust fans or fireplaces could create a

NEGATIVE PRESSURE CONDITION at the furnace. Make-up air MUST be provided for the ventilation devices,

in addition to that required by the furnace. Refer to the

Carbon Monoxide Poisoning Hazard warning in the venting

section of these instructions to determine if an adequate

amount of make-up air is available.

The requirements for combustion and ventilation air depend upon whether or not the furnace is located in a space having a volume

of at least 50 cubic feet per 1,000 Btuh input rating for all gas appliances installed in the space.

• Spaces having less than 50 cubic feet per 1,000 Btuh require the OUTDOOR COMBUSTION AIR

METHOD.

CIRCULATING AiR

DUCTS

VENT THROUGH ROOF

OUTDOORS BTUH*

*Minimum dimensions of 3-in. (76 mm).

NOTE: Use any of the following combinations of openings:

A&BC&DD&EF&G

PER 4000

Fig. 7 - Air for Combustion, Ventilation, and Dilution for

Outdoors

A03174

I I

1 1

INTERIOR

HEATED

SPACE

I I I I

I I

F-Z_ ------1SQ IN.

•

PER t000 BTUH* IN DOOR

OR WALL

UNCONFINED

SPACE

6" MIN (152mm)

(FRONT)0

1 SQ IN.

PER t000

BTUH* IN DOOR

-- OR WALL

L 12" MAX (305ram)

(305ram)

I I

CIRCULATING AIR DUCTS

* Minimum opening size is 100 sq in. (64516 sq, mm)with minimum dimensions of 3 in. (76 mm)

1-Minimum of 3 in. (76 mm) when type-B1 vent is used.

Fig. 8 - Air for Combustion, Ventilation, and Dilution from

Indoors

A03175

• Spaces having at least 50 cubic feet per 1,000 Btuh

may use the INDOOR COMBUSTION AIR, STANDARD or KNOWN AIR INFILTRATION

METHOD.

Outdoor Combustion Air Method

1. Provide the space with sufficient air for proper combus- tion, ventilation, and dilution of flue gases using perman-

ent horizontal or vertical duct(s) or opening(s) directly communicating with the outdoors or spaces that freely

communicate with the outdoors.

2. Fig. 7 illustrates how to provide TWO OUTDOOR OPENINGS, one inlet and one outlet combustion and

ventilation air opening, to the outdoors.

e. One opening MUST commence within 12 in. (300

ram) of the ceiling and the second opening MUST commence within 12 in. (300 ram) of the floor.

f. Size openings and ducts per Fig. 7 and Table 2.

g. TWO HORIZONTAL DUCTS require 1 sq. in. (645

sq. ram) of free area per 2,000 Btuh (1,100 mm2/kW) of combined input for all gas appliances in the space

per Fig. 7 and Table 2.

h. TWO OPENINGS OR VERTICAL DUCTS require 1

sq. in. (645 sq. ram) of free area per 4,000 Btuh (550 mm2/kW) for combined input of all gas appliances in the space per Fig. 7 and Table 2.

3. ONE OUTDOOR OPENING requires:

a. 1 sq. in. (645 sq. ram) of free area per 3,000 Btuh

(734 mm2/kW) for combined input of all gas appli- ances in the space per Table 2 and

b. Not less than the sum of the areas of all vent connect-

ors in the space.

The opening shall commence within 12 in. (300 ram) of the ceiling. Appliances in the space shall have clearances of at least 1

in. (25 ram) from the sides and back and 6 in. (150 ram) from the front. The opening shall directly communicate with the outdoors or shall conmmnicate through a vertical or horizontal duct to the

outdoors or spaces (crawl or attic) that freely communicate with the outdoors.

Indoor Combustion Air© NFPA & AGA Standard and Known-Air-Infiltration Rate Methods

Indoor air is pernfitted for combustion, ventilation, and dilution, if the Standard or Known-Air-Infiltration Method is used,

CARBON MONOXIDE POISONING HAZARD

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

Many homes require air to be supplied from outdoors for furnace combustion, ventilation, and dilution of flue gases.

The furnace combustion air supply nmst be provided in

accordance with this instruction manual.

The Standard Method:

1. The space has no less volume than 50 cubic feet per 1,000 Btuh of the maximum input ratings for all gas appliances

installed in the space and

2. The air infiltration rate is not known to be less than 0.40 air changes per hour (ACH).

The Known Air Infiltration Rate Method shall be used, if the infiltration rate is known to be:

1. Less than 0.40 ACH and

2. Equal to or greater than 0.10 ACH

Infiltration rates greater than 0.60 ACH shall not be used. The minimum required volume of the space varies with the number of

ACH and shall be deternfined per Table 3 or Equations 1 and 2. Deternfine the minimum required volume for each appliance in

the space and add the volumes together to get the total minimum required volume for the space.

Table 3 - Minimum Space Volumes were deternfined by using the following equations from the National Fuel Gas Code ANSI

Z223.1-2009/NFPA 54-2009, 9.3.2.2:

1. For other than fan-assisted appliances, such as a draft hood-equipped water heater:

Volume - 21ft3 L_ !other

Other ACH H000 Btu/hr

A04002

2. For fan-assisted appliances such as this furnace:

Volume

Fat?

A04003

If: Iother = combined input of all other than fan-assisted appliances in Btuh/hr

Ifan = combined input of all fan-assisted appliances in Btuh/hr ACH = air changes per hour (ACH shall not exceed 0.60.)

The following requirements apply to the Standard Method and to the Known Air Infiltration Rate Method.

1. Adjoining rooms can be considered part of a space if:

a. There are no closeable doors between rooms.

b. Combining spaces on same floor level. Each opening

shall have free area of at least 1 in.2/1,000 Btuh (2,000 mm2/kW) of the total input rating of all gas appliances

in the space, but not less than 100 in. 2 (0.06 m2). One opening shall commence within 12 in. (300 ram) of

the ceiling and the second opening shall commence within 12 in. (300 ram) of the floor. The minimum

dimension of air openings shall be at least 3 in. (80 ram). (See Fig. 8.)

c. Combining space on different floor levels. The

volumes of spaces on different floor levels shall be considered as conmmnicating spaces if connected by

one or more permanent openings in doors or floors having free area of at least 2 in.2/1,000 Btuh (4,400

mm2/kW) of total input rating of all gas appliances.

2. An attic or crawlspace may be considered a space that freely conmmnicates with the outdoors provided there are

adequate permanent ventilation openings directly to out- doors having free area of at least 1-in.2/4,000 Btuh of total

input rating for all gas appliances in the space.

3. In spaces that use the Indoor Combustion Air Method, infiltration should be adequate to provide air for combus-

tion, permanent ventilation and dilution of flue gases. However, in buildings with unusually tight construction,

additional air MUST be provided using the methods de- scribed in the Outdoor Combustion Air Method section.

4. Unusually tight construction is defined as Construction with:

a. Walls and ceilings exposed to the outdoors have a con-

tinuous, sealed vapor barrier. Openings are gasketed or sealed and

b. Doors and openable windows are weatherstripped and

c. Other openings are caulked or sealed. These include

joints around window and door frames, between sole

plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical

and gas lines, etc.

Combination of Indoor and Outdoor Air

1. Indoor openings shall comply with the Indoor Combus- tion Air Method below and,

2. Outdoor openings shall be located as required in the Out- door Combustion Air Method mentioned previously and,

3. Outdoor openings shall be sized as follows:

a. Calculate the Ratio of all Indoor Space volume divided

by required volume for Indoor Combustion Air Method below.

b. Outdoor opening size reduction Factor is 1 nfinus the

Ratio in a. above.

c. Minimum size of Outdoor openings shall be the size

required in Outdoor Combustion Air Method above nmltiplied by reduction Factor in b. above. The nfin-

imum dimension of air openings shall be not less than 3 in. (80 mm).

INSTALLATION

UPFLOW INSTALLATION Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed in bottom return-air opening. Remove and discard this panel when

bottom return air is used. To remove bottom closure panel, perform the following:

1. Tilt or raise furnace and remove 2 screws holding bottom filler panel. (See Fig. 9.)

2. Rotate bottom filler panel downward to release holding

tabs.

3. Remove bottom closure panel.

4. Reinstall bottom filler panel and screws.

Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in

bottom return-air opening. This panel MUST be in place when only side return air is used.

Bottom Closure Panel

Bottom Filler Panel

A10273

Fig. 9 - Removing Bottom Closure Panel

NOTE: Side return-air openings can be used in UPFLOW and most HORIZONTAL configurations. Do not use side return-air openings in DOWNFLOW configuration,

Levelin_ Le_s (If Desired) In upflow position with side return inlet(s), leveling legs may be

used. (See Fig. 10.) Install field-supplied, 5/16 X 1-1/2 in. (8 X 38 ram) (max) corrosion-resistant machine bolts, washers and

nuts.

(8ram)

(44ram)

1 3/4

(8ram)

5/16"

(44mm) 1 3/4"

(44mm) 1

1 3/4"

(44ram)

(8ram)

NOTE: It is recommended that the perforated supply-air duct flanges be completely folded over or removed from furnace when installing the furnace on a factory-supplied cased coil or coil box. To remove the supply-air duct flange, use wide duct pliers or hand seamers to bend flange back and forth until it breaks off. Be

careful of sharp edges. (See Fig. 14 0 Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed in bottom return-air opening. Remove and discard this panel when bottom return air is used. To remove bottom closure panel,

perform the following:

1. Tilt or raise furnace and remove 2 screws holding bottom filler panel. (See Fig. 90

2. Rotate bottom filler panel downward to release holding

tabs.

3. Remove bottom closure panel.

4. Reinstall bottom filler panel and screws.

HORIZONTAL INSTALLATION

A89014

Fig. 10 - Leveling Legs

NOTE: Bottom closure must be used when leveling legs are used. It may be necessary to remove and reinstall bottom closure panel to install leveling legs. To remove bottom closure panel, see Item 1 in Bottom Return Air Inlet section in Step 1 above.

To install leveling legs:

1. Position furnace on its back. Locate and drill a hole in each bottom corner of furnace. (See Fig. 10.)

2. For each leg, install nut on bolt and then install bolt with nut in hole. (Install flat washer if desired.)

3. Install another nut on other side of furnace base. (Install flat washer if desired.)

4. Adjust outside nut to provide desired height, and tighten inside nut to secure arrangement.

5. Reinstall bottom closure panel if removed.

DOWNFLOW INSTALLATION NOTE: For downflow applications, this furnace is approved for

use on combustible flooring when any one of the following 3 accessories are used:

• Special Base, KGASB

• Cased Coil Assembly Part No. CNPV, CNRV, CAP, or CAR

• Coil Box Part No. KCAKC

1. Deternfine application being installed from Table 4.

2. Construct hole in floor per Table 4 and Fig. 11.

3. Construct plenum to dimensions specified in Table 4 and Fig. 11.

4. If downflow subbase, KGASB is used, install as shown in Fig. 12. If Coil Assembly Part No. CPVP, CAPMP or

CNPVP Coil Box Part No. KCAKC is used, install as shown in Fig. 13.

FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING HAZARD

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

Do not install the furnace on its back or hang furnace with control compartment facing downward. Safety control operation will be adversely affected. Never connect

return-air ducts to the back of the furnace.

The furnace can be installed horizontally in an attic or crawlspace on either the left-hand (LH) or right-hand (RH) side. The furnace

can be hung from floor joists, rafters or trusses or installed on a non-combustible platform, blocks, bricks or pad.

Suspended Furnace Support The furnace may be supported under each end with threaded rod,

angle iron or metal plumber's strap as shown. (See Fig. 15 and

16.) Secure angle iron to bottom of furnace as shown. Heavy-gauge sheet metal straps (plumber's straps) may be used to suspend the furnace from each bottom corner. To prevent screws from pulling out, use 2 #8 x in. screws into the side and 2

#8 x in. screws in the bottom of the furnace casing for each strap. (See Fig. 15 and 16.)

If the screws are attached to ONLY the furnace sides and not the bottom, the straps nmst be vertical against the furnace sides and

not pull away from the furnace sides, so that the strap attachment screws are not in tension (are loaded in shear) for reliable support.

Platform Furnace Support Construct working platform at location where all required furnace

clearances are met. (See Fig. 2 and 170 For furnaces with 1-in. (25 ram) clearance requirement on side, set furnace on non-combustible blocks, bricks or angle iron. For crawlspace

installations, if the furnace is not suspended from the floor joists, the ground underneath furnace must be level and the furnace set

on blocks or bricks.

FURNACE

(OR COIL CASING

WHEN USED)

COMBUSTIBLE

FLOORING

DOWNFLOW

SUBBASE

SHEET METAL

PLENUM

__ FLOOR __

OPENING

A96283

Fig. 11 - Floor and Plenum Opening Dimensions

Roll- Out Protection

Provide a minimum 17-3/4-in. X 22-in. (451 X 559 ram) piece of sheet metal for flame roll-out protection in front of burner area

for furnaces closer than 12-in. (305 ram) above the combustible deck or suspended furnaces closer than 12-in. (305 ram) to joists. The sheet metal MUST extend underneath the furnace casing by

l-in. (25 ram)with the door removed. The bottom closure panel on furnaces of widths 17-1/2-in. (445

ram) and larger may be used for flame roll-out protection when bottom of furnace is used for return air connection. See Fig. 17 for proper orientation of roll-out shield.

Bottom Return Air Inlet These furnaces are shipped with bottom closure panel installed in

bottom return-air opening. Remove and discard this panel when bottom return air is used. To remove bottom closure panel,

perform the following:

1. Tilt or raise furnace and remove two screws holding bot- tom filler panel. (See Fig. 9.)

2. Rotate bottom filler panel downward to release holding

tabs.

3. Remove bottom closure panel.

4. Reinstall bottom filler panel and screws.

Side Return Air Inlet These furnaces are shipped with bottom closure panel installed in

bottom return-air opening. This panel MUST be in place when side return air inlet(s) are used without a bottom return air inlet,

A96285

Fig. 12 - Furnace, Plenum, and Subbase Installed on a

Combustible Floor

FURNACE

APPROVED

COIL ASSEMBLY

COIL BOX

/_ COMBUSTIBLE

Fig. 13 - Furnace, Plenum, and Coil Assembly or Coil Box

Installed on a Combustible Floor

FLOORING _N

SHEET METAL ____

PLENUM

FLOOR

OPENING

A08556

Not all horizontal furnaces are approved for side return air connections (See Fig. 20.)

Table4 - Opening Dimensions - In. (mm)

FURNACE

CASING

WIDTH

APPLICATION

IN.(mm)

Upflow Applications on Combustible or Noncombustible Floor- 12-11/16 21-5/8 13-5/16 22-1/4

Downflow Applications on Noncombustible Flooring (KGASB 12-9/16 19 13-3/16 19-5/8

14-3/16 Downflow applications on combustible flooring (KGASB sub- 11 - 18/16 19 18- 7/16 20- 5/8

(360) base required) (284) (483) (341) (600)

Downflow Applications on Combustible Flooring with CNPV,

CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB

Upflow Applications on Combustible or Noncombustible Floor- 16 21 -5/8 16-5/8 22-1/4

Downflow Applications on Noncombustible Flooring (KGASB 15-7/8 19 16-1/2 19-5/8

17-1/2 Downflow applications on combustible flooring (KGAS B su b- 15-1/8 19 16-3/4 20-5/8

(445) base required) (384) (483) (425) (600)

Downflow Applications on Combustible Flooring with CNPV,

CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB

Upflow Applications on Combustible or Noncombustible Floor- 19-1/2 21-5/8 20-1/8 22-1/4

Downflow Applications on Noncombustible Flooring (KGASB 19-3/8 19 20 19-5/8

21 Downflow applications on combustible flooring (KGASB sub- 18-5/8 19 20-1/4 20-5/8

(533) base required) (473) (483) (514) (600)

Downflow Applications on Combustible Flooring with CNPV,

CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB

Upflow Applications on Combustible or Noncombustible Floor- 23 21 - 1/8 28- 5/8 22-1/4

Downflow Applications on Noncombustible Flooring (KGASB 22-7/8 19 28-1/2 19-5/8

24-1/2 Downflow applications on Combustible flooring (KGAS B su b- 22-1/8 19 28- 3/4 20-5/8

(622) base required) (562) (483) (603) (600)

Downflow Applications on Combustible Flooring with CNPV,

CNRV, CAR or CAP Coil Assembly or KCAKC coil box (KGASB

ing (KGASB subbase not required) (322) (549) (338) (565)

subbase not required) (819) (483) (335) (498)

subbase not required) (819) (483) (338) (508)

ing (KGASB subbase not required) (406) (549) (422) (565)

subbase not required) (403) (483) (419) (498)

subbase not required) (394) (483) (419) (508)

ing (KGASB subbase not required) (495) (549) (511) (565)

subbase not required) (492) (483) (508) (498)

subbase not required) (483) (483) (508) (508)

ing (KGASB subbase not required) (584) (537) (600) (565)

subbase not required) (581) (483) (597) (498)

subbase not required) (572) (483) (597) (508)

PLENUM OPENING FLOOR OPENING

A B C D

12-5/16 19 13-5/16 20

15-1/2 19 16-1/2 20

19 19 20 20

22-1/2 19 23-1/2 20

Filter Arrangement

CARBON MONOXIDE POISONING HAZARD

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

Never operate a furnace without a filter or with filter access door removed.

There are no provisions for an internal filter rack in these furnaces. A field-supplied accessory external filter rack is

required. Refer to the instructions supplied with the external filter rack for

assembly and installation options. AIR DUCTS

General Requirements The duct system should be designed and sized according to

accepted national standards such as those published by: Air Conditioning Contractors Association (ACCA), Sheet Metal and

Air Conditioning Contractors National Association (SMACNA) or American Society of Heating, Refrigerating and Air

Conditioning Engineers (ASHRAE) or consult The Air Systems

Design Guidelines reference tables available from your local

distributor. The duct system should be sized to handle the required system design CFM at the design external static pressure. The furnace airflow rates are provided in Table 5-Air

Delivery-CFM (With Filter). When a furnace is installed so that

the supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also

be handled by duct(s) sealed to the furnace casing and ternfinating outside the space containing the furnace.

Secure ductwork with proper fasteners for type of ductwork used. Seal supply- and return-duct connections to furnace with code approved tape or duct sealer.

NOTE: Flexible connections should be used between ductwork and furnace to prevent transnfission of vibration.

Ductwork passing through unconditioned space should be insulated to enhance system performance. When air conditioning

is used, a vapor barrier is recommended. Maintain a 1-in. (25 ram) clearance from combustible materials

to supply air ductwork for a distance of 36-in. (914 ram) horizontally from the furnace. See NFPA 90B or local code for

further requirements. Ductwork Acoustical Treatment

NOTE: Metal duct systems that do not have a 90 degree elbow and 10 ft. (3 M) of main duct to the first branch take-off may

require internal acoustical lining. As an alternative, fibrous ductwork may be used if constructed and installed in accordance

with the latest edition of SMACNA construction standard on fibrous glass ducts. Both acoustical lining and fibrous ductwork

shall comply with NFPA 90B as tested by UL Standard 181 for Class 1 Rigid air ducts.

Supply Air Connections For a furnace not equipped with a cooling coil, the outlet duct

shall be provided with a removable access panel. This opening shall be accessible when the furnace is installed and shall be of

such a size that the heat exchanger can be viewed for possible openings using light assistance or a probe can be inserted for

sampling the air stream. The cover attachment shall prevent leaks.

Upflow and Horizontal Furnaces

Connect supply-air duct to flanges on furnace supply-air outlet. Bend flange upward to 90 ° with wide duct pliers. (See Fig. 14.)

The supply-air duct must be connected to ONLY the furnace supply-outlet-air duct flanges or air conditioning coil casing (when used). DO NOT cut main furnace casing side to attach

supply air duct, humidifier, or other accessories. All accessories MUST be connected to duct external to furnace main casing.

UPFLOW DOWNFLOW HORIZONTAL

NOTE: For horizontal applications, the top most flange may be bent past 90 ° to allow the evaporator coil to hang on the flange temporarily while the remaining attachment and sealing of the coil are performed.

Downflow Furnaces

Connect supply-air duct to supply-air outlet on furnace. Bend flange inward past 90 ° with wide duct pliers (See Fig. 14.) The supply-air duct must be connected to ONLY the furnace supply

outlet or air conditioning coil casing (when used). When installed on combustible material, supply-air duct must be connected to

ONLY the factory-approved accessory subbase, or a factory-approved air conditioning coil casing. DO NOT cut main furnace casing to attach supply side air duct, humidifier, or other accessories. All accessories MUST be connected to duct external

to furnace casing.

I ......

120°_

MIN

YES

NO NO NO

12oo_

MIN

YES

120°_

MIN

YES

A02020

Fig. 14 - Duct Flanges

UTER DOOF

ASSEMBLY

8" (203mm) MIN FOR DOOR REMOVAL

(2) HEX NUTS, (2) WASHERS & (2) LOCK WASHERS REQ. PER ROD

1/4'1 (6mm) THREADED ROD

4 REQ.

SECURE ANGLE IRON TO BOTTOM OF FURNACE WITH

3 #8 xS/4'' (19ram) SCREWS TYPICAL FOR 2 SUPPORTS

1" (25mm) SQUARE, 1-1/4"xt-1/4"xl/8" (32x32x3mm)

ANGLE IRON OR UNI-STRUT MAY BE USED

OUTER DOOR ASSEMB_

A10130

Fig. 15 - Horizontal Unit Suspension

22 GAUGE GALVANIZED STRAPS TYPICAL

FOR 4 STRAPS

AIR

METHOD 2

BACK OF FURNACE

METHOD 1 FOLD ALL STRAPS UNDER FURNACE AND SECURE WTH

(4) #8 x 3/4 (t9 ram) SHEET METAL SCREWS (2 SCREWS INSIDE AND 2SCREWS

IN BOTTOM).

USE (4) #8 x 3/4 (19 ram) SHEET METAL SCREWS FOR EACH STRAR THE STRAPS

SHOULD BE VERTICAL AGAINST THE FURNACE SIDES AND NOT PULL AWAY FROM THE FURNACE SIDES.

Fig. 16 - Horizontal Suspension with Straps

A10131

LINE CONTACT ONLY PERMISSIBLE BETWEEN

LINES FORMED BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET AND BUILDING JOISTS,

STUDS, OR FRAMING.

ENTRY VENT

17 3/4" (451 mm)OVERALL 4 3/4" (121mm) UNDER DOOR

1" (25mm) UNDER FURNACE

EXTEND OUT 12" (305mm) FROM FACE OF DOOR

EQUIPMENT MANUAL

SHUT-OFF GAS VALVE

SEDIMENT UNION

TRAP

Fig. 17 - Typical Attic Installation

_0-1N.(762mm)

MIN WORK AREA

*WHEN USED WITH

SINGLE WALL VENT CONNECTIONS

A10164

RETURN

AIR

UPFLOW RETURN AIR CONFIGURATIONS AND RESTRICTIONS

AIR FLOW MODELS RETURN AIR RETURN AIR RETURN AIR RETURN AIR

066.060, -22 AND YES YES YES YES

-20 MODELS ALL OTHER MODELS YES YES YES YES

Fig. 18 - Upflow Return Air Configurations and Restrictions

CONNECTION 1 CONNECTmON 2 CONNECTmON 3 COMBINATIONS ONLY ONLY ONLY OF 1,2, AND 3

A02075

Fig. 19 - Downflow Return Air Configurations and Restrictions

REIURN

AIR

@ £q/DTE.........

I 066.060.-22-20

RETURN

AIR

/ ii

NOTPERMITTEDFOR

066.060.-22-20

........................._ .......................... IIORIZONAL

HORIZONALNOIE:RESIRIC11ONLEFTSAMEFOR _ AIR RESTRICTIONS

RETURN RETURNAIR

"% / HORIZONTAL RETURN AIR CONFIGURATIONS AND RESTRICTIONS

AIR FLOW MODELS RETURN AIR RETURN AIR RETURN AIR RETURN AIR

066.060, -22 AND YES NO NO NO

-20 MODELS ALL OTHER MODELS YES YES YES YES

Fig. 20 - Horizontal Return Air Configurations and Restrictions

DOWNFLCAN RETURN AiR CONFIGURAT1ONSAND RESTRICTIONS

AIR FLOW MODELS RETURN AIR RETURN AIR RETURN AIR RETURN AIR

066,060, -22 AND YES NO NO NO

-20 MODELS ALL OTHER MODELS YES NO NO NO

CONNECTION 1 CONNECTION 2 CONNECTION 3 COMBINATIONS ONLY ONLY ONLY OF 1, 2, AND 3

A02163

A02162

Table 5 - Air Delivery - CFM (With Filter)*

Unit Size Operating Mode Airflow Pressure

CFM Static External Static Pressure (ESP) (IN. W.C.)

Setting Range* 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.6 0.9 1

1-1- Low Heat 735 (615)1- 0-0.50 735 735 735 735 725

High Heat 1180 (1060)1- 0-1.0 1160 1165 1175 1180 1180 1180 1180 1180 1180 1175

1-1- 1-1/2-Ton Cooling 525 0-0.505 515 500 500 490 485 1-1- 2-Ton A/C Cooling 700 0-0.505 690 680 675 680 675

2-1/2-Ton A/C Cooling 875 0-1.05 875 875 875 870 865 855 850 835 825 820

3-Ton A/C Cooling 1050 0-1.05 1050 1050 1050 1050 1050 1050 1045 1035 1020 1000

3-1/2-Ton A/C Cooling 1225 0-1.0 1220 1225 1225 1225 1225 1220 1205 1190 1185 1170

Maximum 1400 0-1.0 1395 1400 1400 1400 1395 1385 1370 1340 1300 1245

Low Heat 985 (825)1- 0-1.0 950 970 985 985 985 985 985 985 985 980 High Heat 1210 (1090)1- 0-1.0 1190 1205 1210 1210 1210 1210 1210 1210 1210 1200

1-1- 1-1/2-Ton A/C Cooling 525 0-0.50_: 525 520 525 495 475 1-1- 2-Ton A/C Cooling 700 0-0.505 680 680 680 675 670

2-1/2-Ton A/C Cooling 875 0-1.05 815 845 845 855 850 850 845 835 820 805

3-Ton A/C Cooling 1050 0-1.05 1005 1005 1015 1035 1040 1040 1035 1030 1025 1010

3-1/2-Ton A/C Cooling 1225 0-1.0 1190 1200 1200 1205 1205 1215 1205 1200 1185 1170

4-Ton A/C Cooling 1400 0-1.0 1350 1370 1390 1390 1400 1390 1380 1380 1360 1340

Maximum 1600 0-1.0 1595 1600 1600 1600 1595 1555 1505 1465 1430 1390

Low Heat 1320 (1110)1- 0-1.0 1275 1295 1315 1320 1320 1320 1320 1320 1320 1315 High Heat 1475 (1330)1- 0-1.0 1460 1465 1475 1475 1475 1475 1475 1475 1465 1465

1-1- 2-Ton A/C Cooling 700 0-0.505 700 700 700 700 700 1-1- 2-1/2-Ton A/C Cooling 875 0-0.505 875 875 875 875 875

1-1- 3-Ton A/C Cooling 1050 0-0.505 1050 1050 1050 1050 1050

3-1/2-Ton A/C Cooling 1225 0-1.05 1225 1225 1225 1225 1225 1225 1225 1225 1225 1225

4-Ton A/C Cooling 1400 0-1.05 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 5-Ton A/C Cooling 1750 0-1.05 1750 1750 1750 1750 1750 1750 1750 1750 1740 1725 6-Ton A/C Cooling 2100 0-1.0 2100 2100 2100 2100 2090 2075 2055 2040 2005 1970

Maximum 2200 0-1.0 2200 2190 2190 2180 2155 2145 2125 2100 2080 2020

External

(In. W.C.)

Low Heat 1700 (1430)1- 0-1.0 1700 1700 1700 1700 1700 1695 1700 1695 1685 1670

High Heat 1915 (1725)1- 0-1.0 1900 1905 1915 1915 1915 1915 1915 1915 1915 1915 1-1- 2-Ton A/C Cooling 700 0-0.505 700 700 700 700 665 1-1- 2-1/2-Ton A/C Cooling 875 0-0.505 870 870 865 865 865

1-1- 3-Ton A/C Cooling 1050 0-0.505 1010 1030 1050 1050 1050

3-1/2-Ton A/C Cooling 1225 0-1.05 1155 1180 1200 1210 1220 1225 1225 1225 1225 1225

4-Ton A/C Cooling 1400 0-1.05 1395 1400 1400 1400 1400 1400 1400 1390 1375 1355 5-Ton A/C Cooling 1750 0-1.05 1740 1750 1750 1750 1735 1740 1735 1730 1715 1700 6-Ton A/C Cooling 2100 0-1.0 2075 2085 2090 2100 2100 2100 2090 2080 2055 2025

Maximum 2200 0-1.0 2180 2195 2200 2200 2200 2200 2185 2165 2140 2095

Low Heat 1715 (1440)1- 0-1.0 1715 1715 1715 1715 1715 1705 1710

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High Heat 1970 (1775)1- 0-1.0 1955 1965 1965 1970 1970 1970 1970

2-Ton A/C Cooling 700 0-0.505 700 700 700 700 680

2-1/2-Ton A/C Cooling 875 0-0.505 865 875 875 865 865

3-Ton A/C Cooling 1050 0-0.505 1015 1020 1035 1045 1050

3-1/2-Ton A/C Cooling 1225 0-1.05 1160 1185 1215 1225 1225 1225 1225

4-Ton A/C Cooling 1400 0-1.05 1385 1400 1400 1400 1400 1400 1395 5-Ton A/C Cooling 1750 0-1.05 1745 1750 1750 1750 1745 1740 1745 6-Ton A/C Cooling 2100 0-1.0 2055 2070 2080 2085 2095 2100 2100

Maximum 2200 0-1.0 2175 2190 2200 2200 2200 2200 2200

1705 1705 1695 1970 1970 1960

1225 1225 1225 1395 1380 1360 1745 1740 1735 2100 2090 2065 2200 2180 2160

*Actual external static pressure (ESP) can be determined by using the fan laws (CFM 2 proportional to ESP); such as, a system with 1180 CFM at 0.5 ESP would operate at cooling airflow of 1050 CFM at 0.4 ESP and low-heating airflow of 735 CFM at 0.19 ESP.

1-Comfort airflow values are shown in parenthesis. Comfort airflow is selected when the low-heat rise adjustment switch (SW1-3) is OFF and the comfort/efficiency switch (SW1-4) is ON.

SDuctwork must be sized for high-heating CFM within the operational range of ESP. 1-1-Operation within the blank areas of the chart is not recommended because high-heat operation will be above 1.0 ESP. ***All airflow on 110 size furnace are 5% less on side return only installations.

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