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46

CARE AND MAINTENANCE

FIRE OR EXPLOSION HAZARD

Failure to follow this warning could result in personal

injury, death and/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.

!

WARNING

For continuing high performance and to minimize possible
equipment failure, periodic maintenance must be performed on

this equipment. Consult your local dealer about proper frequency

of maintenance and the availability of a maintenance contract.

ELECTRICAL SHOCK AND FIRE HAZARD

Failure to follow this warning could result in personal

injury, death or property damage.
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.

!

WARNING

CARBON MONOXIDE POISONING AND

FIRE HAZARD

Failure to follow this warning could result in personal

injury, death and/or property damage.
Never operate unit without a filter or with filter access door

removed.

!

WARNING

CUT HAZARD

Failure to follow this caution may result in personal injury.
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.

CAUTION

!

The minimum maintenance on this furnace is as follows:

1. Check and clean/replace air filter each month or more

frequently if required. Replace if torn.

2. Check blower motor and wheel for cleanliness each

heating and cooling season. Clean as necessary.

3. Check electrical connections for tightness and controls for

proper operation each heating season. Service as
necessary.

4. Inspect burner compartment before each heating season

for rust, corrosion, soot or excessive dust. If necessary,

have furnace and burner serviced by a qualified service
agency.

5. Inspect the vent pipe/vent system before each heating

season for rust, corrosion, water leakage, sagging pipes or
broken fittings. Have vent pipes/vent system serviced by a

qualified service agency.

6. Inspect any accessories attached to the furnace such as a

humidifier or electronic air cleaner. Perform any service or

maintenance to the accessories as recommended in the
accessory instructions.

CLEANING AND/OR REPLACING AIR FILTER

The air filter arrangement will vary depending on the application.

The filter is exterior to the furnace casing.

NOTE

: If the filter has an airflow direction arrow, the arrow

must point towards the blower.

Table 15 – Filter Size Information (In. / mm)

FURNACE

CASING

WIDTH

In. (mm)

FILTER SIZE (In. / mm)

FILTER TYPE

Side Return

Bottom Return

14---1/2

(368)

16 x 25 x 3/4

(406 x 635 x 19)

14 x 25 x 3/4

(356 x 635 x 19)

Washable*

17---1/2

(445)

16 X 25 X 3/4

(406 x 635 x 19)

16 X 25 X 3/4

(406 x 635 x 19)

Washable*

21 (533)

16 x 25 x 3/4

(406 x 635 x 19)

20 X 25 X 3/4

(508 x 635 x 19)

Washable*

24 (610)

16 x 25 x 3/4

(406 x 635 x 19)

24 X 25 X 3/4

(610 x 635 x 19)

Washable*

* Recommended

Media cabinet filter procedures :

NOTE

: Media cabinet is included with single--stage deluxe

furnace.

1. Turn off electrical supply to furnace before removing filter

access door.

2. Remove filter cabinet door.
3. Slide filter out of cabinet.
4. If equipped with permanent, washable 3/4--in. (19 mm) fil-

ter, 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. See

Table 15 for size information.

5. If equipped with factory--specified disposable media filter,

replace only with media filter having the same part

number and size. For expandable replacement media, refer
to the instructions included with the replacement media. If

equipped with accessory KGAFR0301ALL external filter
rack, See Table 15.

6. Slide filter into cabinet.
7. Replace filter cabinet door.
8. Turn on electrical supply to furnace.

BLOWER MOTOR AND WHEEL

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury

or death.
Blower access door switch opens 115--v power to control.

No component operation can occur unless switch is closed.

Caution must be taken when manually closing this switch

for service purposes.

!

WARNING

313A

Summary of Contents for 313AAV

Page 1: ...lter Arrangement 14 Air Ducts 14 Gas Piping 17 115 V Wiring 22 START UP ADJUSTMENT AND SAFETY CHECK 36 General 36 Start up Procedures 36 Adjustments 36 Check Safety Controls 39 Checklist 40 SERVICE AN...

Page 2: ...11 16 322 9 5 16 237 4 102 114 52 16 406 070 16 048070 17 1 2 445 15 7 8 403 16 406 11 9 16 294 4 102 136 62 16 406 090 16 048090 21 533 19 3 8 492 19 1 2 495 13 5 16 338 4 102 150 68 20 508 110 20 0...

Page 3: ...e space containing the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating outside the space containing the furnace See Air Ducts section 8 A gas fired...

Page 4: ...local codes the installation must comply with the national codes listed below and all authorities having jurisdiction In the United States and Canada follow all codes and standards for the following...

Page 5: ...Z223 1 2006 Chapters 12 and 13 S CANADA CAN CSA B149 1 05 Part 8 and Appendix C ELECTROSTATIC DISCHARGE ESD PRECAUTIONS PROCEDURE FURNACE RELIABILITY HAZARD Improper installation or service of furnace...

Page 6: ...eaning Always comply with minimum fire protection clearances shown on the furnace clearance to combustible label The following types of furnace installations may require OUTDOOR AIR for combustion due...

Page 7: ...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 5...

Page 8: ...h means to prevent operation of either unit unless the damper is in the full heat or full cool position AIR FOR COMBUSTION AND VENTILATION Provisions for adequate combustion ventilation and dilution a...

Page 9: ...ilation and dilution of flue gases The furnace combustion air supply must be provided in accordance with this instruction manual WARNING The Standard Method 1 The space has no less volume than 50 cubi...

Page 10: ...ly 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 A02098 Fig 9 Removing Bottom Clos...

Page 11: ...commended 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 ai...

Page 12: ...12 APPROVED COIL ASSEMBLY OR COIL BOX FURNACE SHEET METAL PLENUM FLOOR OPENING COMBUSTIBLE FLOORING A08556 Fig 13 Furnace Plenum and Coil Assembly or Coil Box Installed on a Combustible Floor 313A...

Page 13: ...y 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...

Page 14: ...d and sealed to enhance system performance When air conditioning is used a vapor barrier is recommended Maintain a 1 in 25 mm clearance from combustible materials to supply air ductwork for a distance...

Page 15: ...THREADED ROD 4 REQ SECURE ANGLE IRON TO BOTTOM OF FURNACE WITH 3 8 x3 4 19mm SCREWS TYPICAL FOR 2 SUPPORTS 1 25mm SQUARE 1 1 4 x1 1 4 x1 8 32x32x3mm ANGLE IRON OR UNI STRUT MAY BE USED 2 HEX NUTS 2 WA...

Page 16: ...Suspension with Straps 30 IN 762mm MIN WORK AREA 6 MIN TYPE B VENT 17 3 4 22 SHEET METAL SEDIMENT TRAP EQUIPMENT MANUAL SHUT OFF GAS VALVE LINE CONTACT ONLY PERMISSIBLE BETWEEN LINES FORMED BY INTERSE...

Page 17: ...xtend a minimum of 2 in 51 mm outside the furnace WARNING Gas piping must be installed in accordance with national and local codes Refer to current edition of NFGC in the U S the CAN CSA B149 1 05 in...

Page 18: ...ded 3 4 in 19 mm washable filter media such as contained in factory authorized accessory filter rack To determine airflow performance without this filter assume an additional 0 1 in wc available exter...

Page 19: ...19 A02075 Fig 18 Upflow Return Air Configurations and Restrictions A02163 Fig 19 Downflow Return Air Configurations and Restrictions 313A...

Page 20: ...20 A02162 Fig 20 Horizontal Return Air Configurations and Restrictions 2 51mm Street Elbow A08551 Fig 21 Burner and Manifold 313A...

Page 21: ...nt ELECTRICAL CONNECTIONS 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 control No component oper...

Page 22: ...Step 1 5 Route J Box wires within furnace away from sharp edges rotating parts and hot surfaces ELECTRICAL CONNECTION TO J BOX Field Supplied Electrical Box on Furnace J Box Bracket See Fig 23 1 Remov...

Page 23: ...t is required use ONLY a 3 amp fuse of identical size ACCESSORIES 1 Electronic Air Cleaner EAC Connect an accessory Electronic Air Cleaner if used using 1 4 in female quick connect terminals to the tw...

Page 24: ...AUXILIARY J BOX 24 V TERMINAL BLOCK THREE WIRE HEATING ONLY FIVE WIRE NOTE 1 NOTE 2 FIELD SUPPLIED DISCONNECT CONDENSING UNIT TWO WIRE FURNACE C O N T R O L R G COM W C R G Y GND GND FIELD 24 V WIRING...

Page 25: ...nce with ANSI Z21 47 2006 CSA 2 3 2006 and operate with a non positive vent static pressure to minimize the potential for vent gas leakage Category I furnaces operate with a flue loss not less than 17...

Page 26: ...wing these figures A04216 Fig 27 Single Stage Furnace with Two Speed Air Condi tioner See notes 1 2 4 6 7 9 10 and 12 on the page following these figures A04217 Fig 28 Single Stage Furnace with Single...

Page 27: ...installations This is factory default 5 Dip switch No 1 on Thermidistat should be set in ON position for heat pump installations 6 Dip switch No 2 on Thermidistat should be set in OFF position for sin...

Page 28: ...erior Masonry Chimney FAN NAT Installations with Type B Double Wall Vent Connectors NFPA AGA Table 8 Combined Appliance Maximum Input Rating in Thousands of BTUH per Hour VENT HEIGHT FT M INTERNAL ARE...

Page 29: ...n cleanout Mortar tile metal vent fuel oil residue Is liner and top seal in good condition Is chimney property lined with clay tile liner Crown condition Missing mortar or brick Rebuild crown Yes Yes...

Page 30: ...sing If flue extension is used fasten the flue extension to the vent elbow with at least two field supplied corrosion resistant sheet metal screws located 180_ apart Fasten the vent connector to the f...

Page 31: ...8 9 on the pages following these figures A03209 Fig 35 Upflow Application Vent Elbow Right SEE NOTES 1 2 3 4 5 7 8 9 on the page following these figures A03210 Fig 36 Downflow Application Vent Elbow...

Page 32: ...9 on the page following these figures A03212 Fig 39 Downflow Application Vent Elbow Up then Right SEE NOTES 1 2 4 7 8 9 on the page following these figures A03213 Fig 40 Horizontal Left Application V...

Page 33: ...15 Fig 43 Horizontal Left Application Vent Elbow Up SEE NOTES 1 2 4 5 7 8 9 on the page following these figures A03219 Fig 44 Horizontal Right Application Vent Elbow Left then Up SEE NOTES 1 2 4 5 7 8...

Page 34: ...min vent must be used inside furnace casing and when the KGAVG0101DFG Downflow Vent Guard Kit is used external to the furnace 6 Accessory Downflow Vent Guard Kit KGAVG0101DFG required in downflow ins...

Page 35: ...35 A04128 Fig 48 Rounded End of Knockout A04129 Fig 49 Knockout Pulled Loose A04130 Fig 50 Hammer and Screwdriver Used for Knockout A04131 Fig 51 Remove Knockout with Hammer 313A...

Page 36: ...rned on See Fig 24 ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Blower access door switch opens 115 v power to control No component operation can occ...

Page 37: ...right then up Fig 41 132 000 5 127 7 2 Horizontal Left Vent elbow right Fig 42 132 000 5 127 7 2 NOTE All vent configurations must also meet National Fuel Gas Code venting requirements NFGC 4 in 102 m...

Page 38: ...rmometer readings stabilize subtract return air temperaturefromsupply air temperatureto determineair temperature rise NOTE Blower access door must be installed for proper temperature rise measurement...

Page 39: ...ion during this test cause must be determined and corrected a Run furnace for at least 5 minutes b Gradually block off return air with a piece of cardboard or sheet metal until the limit trips c Unblo...

Page 40: ...8 621 78 46 92 231 30 120 240 600 80 45 90 225 31 116 232 581 82 44 88 220 32 113 225 563 84 43 86 214 33 109 218 545 86 42 84 209 34 106 212 529 88 41 82 205 35 103 206 514 90 40 80 200 36 100 200 50...

Page 41: ...41 Table 13 Orifice Size and Manifold Pressure In wc for Gas Input Rate A08220 313A...

Page 42: ...42 Table 13 Orifice Size and Manifold Pressure In wc for Gas Input Rate CONT A08220A 313A...

Page 43: ...he furnace from heating The control system also requires an earth ground for proper operation of the control and flame sensing electrode The 24 v circuit contains an automotive type 3 amp fuse located...

Page 44: ...44 Table 14 Orifice Size And Manifold Pressure In wc For Gas Input Rate A08221 313A...

Page 45: ...or before initiating status code recall After status code recall is completed component test will occur 327596 101 REV B 31 PRESSURE SWITCH DID NOT CLOSE OR REOPENED If open longer than five minutes i...

Page 46: ...service agency 5 Inspect the vent pipe vent system before each heating season for rust corrosion water leakage sagging pipes or broken fittings Have vent pipes vent system serviced by a qualified serv...

Page 47: ...er housing and set screw contacts the flat portion of the motor shaft Loosen set screw on blower wheel and reposition if necessary 14 Spin the blower wheel by hand to verify that the wheel does not ru...

Page 48: ...rifle cleaning brush 36 in 914 mm long 1 4 6 mm diameter steel spring cable a variable speed reversible electric drill and vacuum cleaner clean cells as follows a Remove metal screw fitting from wire...

Page 49: ...ormer TRAN inducer motor IDM blower motor BLWM hot surface igniter HSI and gas valve GV 1 Heating See Fig 25 for thermostat connections The wall thermostat calls for heat closing the R to W circuit Th...

Page 50: ...R to G and Y Y2 circuit is closed and there is a demand for dehumidification the furnace blower motor BLWM will drop the blower speed from COOL to HEAT for a maximum of 10 minutes before reverting bac...

Page 51: ...d Y Y2 and G R to W and Y1 and Y Y2 or R to W and Y1 and Y Y2 and G circuits are energized the furnace control CPU will switch to or turn on the blower motor BLWM at HEAT speed and begin a heating cyc...

Page 52: ...52 A08176 Fig 59 Wiring Diagram 313A...

Page 53: ...t sequence The inducer will start and run for the entire component test The HSI blower motor FAN speed AMBER LED boards only HEAT speed and COOL speed will run for 10 15 seconds each Gas valve and hum...

Page 54: ...the trial for ignition period the control will repeat the ignition sequence 3 more times before lockout 14 occurs If flame signal is lost during the blower on delay period blower will come on for the...

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