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15

TABLE 5—AIR DELIVERY -- CFM (WITH FILTER)*

FUR-

NACE

SIZE

RETURN---AIR

INLET

SPEED

EXTERNAL STATIC PRESSURE (IN. WC)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

024045

Bottom or

Side(s)

High

Med---High

Med---Low

1085

920

820

1035

875

775

975

830

730

915

770

680

845

710

620

770

640

555

675

555

470

565

440

360

390

250

190

195

--- ---

--- ---

036045

Bottom or

Side(s)

High

Med---High

Med---Low

1440

1360

1250

1375

1300

1210

1305

1240

1160

1240

1175

1100

1160

1115

1040

1070

1040

965

975

950

885

870

850

790

730

725

670

560

575

520

024070

Bottom or

Side(s)

High

Med---High

Med---Low

1030

835

725

1010

815

700

980

790

675

945

760

645

900

720

600

845

675

555

775

610

475

680

490

390

490

375

300

335

265

--- ---

036070

Bottom or

Side(s)

High

Med---High

Med---Low

1425

1320

1200

1375

1280

1175

1320

1240

1145

1265

1205

1105

1200

1140

1050

1125

1075

990

1035

995

920

940

905

840

830

790

725

655

620

555

048070

Bottom or

Side(s)

High

Med---High

Med---Low

1805

1630

1460

1740

1585

1420

1670

1530

1385

1600

1470

1325

1530

1405

1280

1445

1330

1220

1360

1255

1155

1280

1170

1080

1180

1080

995

1075

990

910

042090

Bottom or

Side(s)

High

Med---High

Med---Low

1650

1515

1385

1600

1485

1360

1535

1440

1320

1465

1380

1260

1385

1300

1195

1285

1220

1120

1175

1115

1025

1055

990

915

895

830

710

645

600

565

048090

Bottom or

Side(s)

High

Med---High

Med---Low

2060

1790

1505

1985

1765

1505

1915

1715

1480

1820

1645

1440

1720

1560

1375

1610

1470

1300

1490

1345

1190

1340

1195

1045

1135

1010

890

925

820

740

060090

Bottom Only

High

Med---High

Med---Low

2405

2225

2020

2310

2155

1955

2220

2080

1880

2130

1995

1805

2025

1895

1730

1920

1785

1630

1790

1675

1535

1660

1565

1420

1530

1420

1275

1350

1260

1135

Both Sides or 1

Side & Bottom

High

Med---High

Med---Low

2530

2285

1995

2450

2215

1945

2365

2150

1900

2270

2075

1840

2165

1985

1770

2065

1890

1685

1940

1780

1600

1805

1660

1480

1670

1525

1350

1505

1360

1180

1Side Only

High

Med---High

Med---Low

2475

2260

1950

2395

2190

1910

2300

2110

1855

2200

2035

1795

2090

1940

1730

1985

1845

1650

1865

1735

1555

1730

1620

1445

1585

1475

1310

1425

1325

1150

036110

Bottom or

Side(s)

High

Med---High

Med---Low

1625

1510

1360

1575

1470

1335

1515

1415

1295

1445

1355

1250

1355

1285

1180

1260

1185

1100

1165

1070

985

990

890

810

785

725

--- ---

--- ---

--- ---

--- ---

048110

Bottom or

Side(s)

High

Med---High

Med---Low

2035

1745

1530

1965

1710

1515

1880

1650

1470

1790

1560

1400

1680

1450

1310

1495

1340

1215

1365

1205

1095

1215

1090

990

1075

955

830

875

750

670

066110

Bottom Only

High

Med---High

Med---Low

2530

2230

1920

2470

2205

1900

2400

2165

1880

2320

2110

1845

2220

2035

1795

2115

1950

1730

2000

1855

1650

1865

1740

1555

1730

1615

1460

1590

1485

1340

Bottom Sides or

1 Side & Bottom

High

Med---High

Med---Low

--- ---

2235

1920

--- ---

220

1900

2415

2155

1880

2350

2100

1845

2250

2040

1795

2145

1955

1730

2015

1850

1650

1875

1740

1555

1715

1595

1460

1560

1470

1340

1Side Only

High

Med---High

Med---Low

2540

2125

--- ---

2495

2120

1795

2430

2105

1790

2355

2060

1765

2265

2010

1720

2175

1940

1650

2065

1840

1585

1935

1730

1500

1785

1615

1390

1650

1485

1280

* A filter is required for each return---air inlet. Airflow performance included 1---in. 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 external static pressure.

--- --- Indicates unstable operating conditions.

PG

8J

/M

Содержание PG8J

Страница 1: ...g 22 J Box Relocation 22 Electrical Connection to J Box 22 Power Cord Install Furnace J Box 23 BX Cable Install Furn J Box 23 24 V Wiring 25 Accessories 25 General Venting Requirements 25 Masonry Chimney Requirements 26 Appliance Application Requirements 28 Additional Venting Requirements 29 Sidewall Venting 30 START UP ADJUSTMENT AND SAFETY CHECK 31 Step 1 General 31 Step 2 Start Up Procedures 31...

Страница 2: ...njury 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 FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury death or property damage Improper installation adjustment alteration service maintenanc...

Страница 3: ... openings for airflow requirements above 1800 CFM A04037 Fig 1 Dimensional Drawing 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 ...

Страница 4: ... plancher combustible seulement quand on utilise la base spéciale pièce nº KGASB0201ALL l ensemble serpentin pièce nº CD5 ou CK5 ou le carter de serpentin pièce nº KCAKC Dans une alcôve on doit maintenir un dégagement à l avant de 18 po 450mm La poistion indiquée concerne le côté d entrée ou de retour quand la fournaise est dans la position horizontale Le contact n est permis qu entre les lignes f...

Страница 5: ...cautions 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 CAUTION 1 Disconnect all power to the furnace Multiple disconnects may be required DO NOT TOUCH THE CONTROL OR ANY W...

Страница 6: ...m Refer to Air Ducts section S be provided ample space for servicing and cleaning Always comply with minimum fire protection clear ances shown on the furnace clearance to combustible label S The following types of furnace installations may re quire OUTDOOR AIR for combustion due to chemical exposures S Commercial buildings S Buildings with indoor pools S Laundry rooms S Hobby or craft rooms and S ...

Страница 7: ...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 nameplat...

Страница 8: ... outdoors a One opening MUST commence within 12 in 300 mm of the ceiling and the second opening MUST commence within 12 in 300 mm of the floor b Size openings and ducts per Fig 7 and Table 2 c TWO HORIZONTAL DUCTS require 1 sq in 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 d TWO OPENINGS OR VERTICAL DUCTS require 1 sq in of f...

Страница 9: ...0 000 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 ACH OTHER THAN FAN ASSISTED TO TAL 1 000 S BTUH GAS INPUT RATE FAN ASSISTED T...

Страница 10: ...BTUH IN DOOR OR WALL 12 MAX Minimum opening size is 100 sq in with minimum dimensions of 3 in Minimum of 3 in when type B1 vent is used UNCONFINED SPACE INTERIOR HEATED SPACE CLEARANCE IN FRONT OF COMBUSTION AIR OPENINGS SHALL BE AT LEAST 3 IN A03175 Fig 8 Air for Combustion Ventilation and Dilution From Indoors b Combining spaces on same floor level Each opening shall have free area of at least 1...

Страница 11: ... 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 NOTE Side return air openings can be used in UPFLOW and most HORIZONTAL configurations Do not use side return air openings in DOWNFLOW configuration In upflow position with side return inlet s leveling legs may be used See Fig 1...

Страница 12: ... 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 HORIZONTAL INSTALLATION FIRE EXPLOSION AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury death or property damage Do not install the furnace on its back or hang...

Страница 13: ...is furnace requires KGAFR030ALL 1 in external filter rack or a suitable field supplied substitute such as the media cabinet Refer to the instructions supplied with 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 Asso...

Страница 14: ... 1 8 19 16 3 4 20 5 8 Downflow Applications on Combustible Flooring with CD5 or CK5 Coil Assembly or KCAKC coil box KGASB subbase not required 15 1 2 19 16 1 2 20 21 Upflow Applications on Combustible or Noncombustible Floor ing KGASB subbase not required 19 1 2 21 5 8 20 1 8 22 1 4 Downflow Applications on Noncombustible Flooring KGASB subbase not required 19 3 8 19 20 19 5 8 Downflow application...

Страница 15: ... 1895 1730 1920 1785 1630 1790 1675 1535 1660 1565 1420 1530 1420 1275 1350 1260 1135 Both Sides or 1 Side Bottom High Med High Med Low 2530 2285 1995 2450 2215 1945 2365 2150 1900 2270 2075 1840 2165 1985 1770 2065 1890 1685 1940 1780 1600 1805 1660 1480 1670 1525 1350 1505 1360 1180 1Side Only High Med High Med Low 2475 2260 1950 2395 2190 1910 2300 2110 1855 2200 2035 1795 2090 1940 1730 1985 1...

Страница 16: ...15 1555 1445 1290 1385 1265 1160 060155 Bottom Only High Med High Med Low 2465 2115 1800 2430 2105 1790 2375 2075 1770 2305 2030 1735 2230 1980 1695 2110 1910 1640 2000 1830 1570 1865 1725 1465 1725 1590 1345 1545 1425 1225 Both Sides Or 1 Side Bottom High Med High Med Low 2155 1800 2135 1790 2375 2095 1770 2285 2040 1735 2200 1975 1695 2105 1895 1640 1995 1790 1570 1870 1685 1465 1730 1550 1345 1...

Страница 17: ... SCREWS TYPICAL FOR 2 SUPPORTS 1 SQUARE 11 4 x 11 4 x 1 8 ANGLE IRON OR UNI STRUT MAY BE USED 2 HEX NUTS 2 WASHERS 2 LOCK WASHERS REQ PER ROD 8 MIN FOR DOOR REMOVAL OUTER DOOR ASSEMBLY A05027 Fig 15 Horizontal Unit Suspension A02014 Fig 16 Horizontal Suspension with Straps PG8J M ...

Страница 18: ...D BY INTERSECTIONS OF THE TOP AND TWO SIDES OF THE FURNACE JACKET AND BUILDING JOISTS STUDS OR FRAMING GAS ENTRY 17 3 4 OVER ALL 4 3 4 UNDER DOOR 1 UNDER FURNACE EXTEND OUT 12 OUT FROM FACE OF DOOR WHEN USED WITH SINGLE WALL VENT CONNECTIONS A02164 Fig 17 Typical Attic Installation A02075 Fig 18 Upflow Return Air configurations and Restrictions PG8J M ...

Страница 19: ... 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 ...

Страница 20: ...ST be performed by a li censed plumber or gas fitter 2 When flexible connectors are used the maximum length shall not exceed 36 inches 915 mm 3 When lever handle type manual equipment shutoff valves are used they shall be T handle valves 4 The use of copper tubing for gas piping is NOT approved by the state of Massachusetts Refer to Table 6 for recommended gas pipe sizing Risers must be used to co...

Страница 21: ...FGC in the United States or NSCNGPIC in Canada local and national plumbing and gas codes before the furnace has been connected After all connections have been made purge lines and check for leakage at furnace prior to operating furnace If pressure exceeds 0 5 psig 14 in wc gas supply pipe must be disconnected from furnace and capped before and during supply pipe pressure test If test pressure is e...

Страница 22: ... warning could result in personal injury death or property damage Do not connect aluminum wire between disconnect switch and furnace Use only copper wire WARNING Use a separate fused branch electrical circuit with a properly sized fuse or circuit breaker for this furnace See Table 7 for wire size and fuse specifications A readily accessible means of electrical disconnect must be located within sig...

Страница 23: ...r wires into electrical box 10 Remove cover from furnace J Box 11 Route and secure field ground wire to green ground screw on J Box bracket 12 Connect line voltage leads as shown in Fig 26 13 Reinstall cover to J Box Do not pinch wires between cover and bracket Electrical Box on Furnace Casing Side See Fig 24 FIRE OR ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal i...

Страница 24: ...ST TERMINAL BLOWER OFF DELAY J2 J2 JUMPER PLT A02100 Fig 25 Furnace Control 115 V FIELD SUPPLIED DISCONNECT 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 FIELD 115 208 230 460 V WIRING FACTORY 24 V WIRING FACTORY 115 V WIRING 208 230 OR 460 V TH...

Страница 25: ...being placed into operation could result in carbon monoxide poisoning or death The following steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances connected to the venting system are not in operation 1 Seal any unused openings in venting system 2 Inspect the venting system for proper size and horizontal pitch as required i...

Страница 26: ...ails Canada and U S A This furnace is permitted to be vented into a clay tile lined masonry chimney that is exposed to the outdoors below the roof line provided 1 Vent connector is Type B double wall and 2 This furnace is common vented with at least 1 draft hood equipped appliance and 3 The combined appliance input rating is less than the max imum capacity given in Table A and 4 The input rating o...

Страница 27: ...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 No No No Reline Yes Repair Yes Yes Yes No No Remove mortar and tile debris Remove metal vent or liner No No No No Yes Yes Suitable Suitable Not Suitable Line chimney with property sized listed flexibl...

Страница 28: ...urnace and or vent ing system Derating is permitted only for altitudes above 2000 ft 3 Adjust the air temperature rise to the midpoint of the rise range or slightly above Low air temperature rise can cause low vent gas temperature and potential for condensation problems 4 Set thermostat heat anticipator or cycle rate to reduce short cycling EXTERIOR MASONRY CHIMNEY FAN NAT INSTALLATIONS WITH TYPE ...

Страница 29: ...The vent connector can exit the door through one of 5 locations on the door 1 Attach the single wall vent connector to the furnace vent elbow and fasten the vent connector to the vent elbow with at least two field supplied corrosion resistant sheet metal screws located 180_ apart NOTE An accessory flue extension KGAFE0112UPH is available to extend from the furnace elbow to outside the furnace casi...

Страница 30: ...ons for complete details The horizontal portion of the venting system shall slope upwards not less than 1 4 in per linear ft 21 mm m from the furnace to the vent and shall be rigidly supported every 5 ft or less with metal hangers or straps to ensure there is no movement after installation SIDEWALL VENTING This furnace is not approved for direct sidewall horizontal venting In the U S Per section 1...

Страница 31: ...p and water solution to check for leakage WARNING 1 Purge gas lines after all connections have been made 2 Check gas lines for leaks 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...

Страница 32: ...e page following these figures A03210 Fig 35 Downflow Application Vent Elbow Up then Left SEE NOTES 1 2 4 5 7 8 9 on the page following these figures A03211 Fig 36 Downflow Application Vent Elbow Up SEE NOTES 1 2 4 5 6 7 8 9 10 on the page following these figures A03207 Fig 37 Downflow Application Vent Elbow Left then Up SEE NOTES 1 2 3 4 5 7 8 9 on the page following these figures A03212 Fig 38 D...

Страница 33: ...plication Vent Elbow Left 1 For common vent vent connector sizing and vent material United States Use the NFGC Canada use the NSCNGPIC 2 Immediately increase to 5 in or 6 in vent connector outside furnace casing when 5 in vent connector is required refer to Note 1 above 3 Side outlet vent for upflow and downflow installations must use Type B vent immediately after exiting the furnace except when K...

Страница 34: ...rnace gas input rate on rating plate is for installations at altitudes up to 2000 ft Furnace input rate must be within 2 percent of furnace rating plate input 1 Determine the correct gas input rate In the U S A The input rating for altitudes above 2 000 ft must be redu ced by 4 percent for each 1 000 ft above sea level For installations below 2000 ft refer to the unit rating plate For installation...

Страница 35: ...lve 5 Set temperature rise The furnace must operate within the temperature rise ranges specified on the furnace rating plate Do not exceed temperature rise range specified on unit rating plate Determine the temperature rise as fol lows NOTE Blower access door must be installed when taking temperature rise reading Leaving blower access door off will result in incorrect temperature measurements a Pl...

Страница 36: ...36 A08411 Fig 46 Wiring Diagram PG8J M ...

Страница 37: ... the midpoint of rise range or slightly above CAUTION 7 Adjust blower off delay The blower off delay has 4 ad justable settings from 90 sec to 180 sec The blower off delay jumpers are located on the furnace control board See Fig 25 To change the blower off delay setting move the jumper from one set of pins on the control to the pins used for the selected blower off delay Factory off delay setting ...

Страница 38: ...minutes determine reason draft safeguard switch did not function properly and correct condition f Remove blockage from furnace vent elbow g Switch will auto reset when it cools h Re install vent connector NOTE Should switch remain open longer than 3 minutes furnace control board will lockout the furnace for 3 hrs To reset furnace control board turn thermostat below room temperature or from HEAT to...

Страница 39: ...50 43 3 7 43 3 8 42 3 2 42 3 3 875 43 3 5 43 3 6 43 3 7 43 3 8 900 43 3 3 43 3 4 43 3 5 43 3 6 925 43 3 1 43 3 2 43 3 3 43 3 4 950 43 2 9 43 3 0 43 3 1 43 3 2 975 43 2 8 43 2 9 43 3 0 43 3 1 1000 43 2 6 43 2 7 43 2 8 43 2 9 ALTITUDE RANGE FT AVG GAS HEAT VALUE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 58 0 60 0 62 0 64 Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold...

Страница 40: ... 43 3 5 725 43 2 9 43 3 0 43 3 1 43 3 2 750 43 2 7 43 2 8 43 2 9 43 3 0 775 43 2 6 43 2 7 43 2 7 43 2 8 800 43 2 4 43 2 5 43 2 6 43 2 7 825 43 2 3 43 2 3 43 2 4 43 2 5 850 43 2 1 43 2 2 43 2 3 43 2 4 ALTITUDE RANGE FT AVG GAS HEAT VALUE AT ALTI TUDE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 58 0 60 0 62 0 64 Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold Pressure O...

Страница 41: ...T ALTITUDE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 58 0 60 0 62 0 64 Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold Pressure U S A Only 9001 to 10 000 600 43 2 7 43 2 8 43 2 9 43 3 0 625 43 2 5 43 2 6 43 2 6 43 2 7 650 43 2 3 43 2 4 43 2 4 43 2 5 675 43 2 1 43 2 2 43 2 3 43 2 3 700 48 3 7 43 2 0 43 2 1 43 2 2 725 48 3 5 48 3 6 48 3 7 ...

Страница 42: ... 3 7 43 3 8 42 3 2 850 43 3 3 43 3 5 43 3 6 43 3 7 875 43 3 2 43 3 3 43 3 4 43 3 5 900 43 3 0 43 3 1 43 3 2 43 3 3 925 43 2 8 43 2 9 43 3 0 43 3 1 950 43 2 7 43 2 8 43 2 9 43 2 9 975 43 2 5 43 2 6 43 2 7 43 2 8 1000 43 2 4 43 2 5 43 2 6 43 2 7 ALTITUDE RANGE FT SPECIFIC GRAVITY OF NATURAL GAS AVG GAS HEAT VALUE BTU CU FT 0 58 0 60 0 62 0 64 Orifice No Manifold Pressure Orifice No Manifold Pressure...

Страница 43: ...1 43 3 2 725 43 2 7 43 2 8 43 2 9 43 2 9 750 43 2 5 43 2 6 43 2 7 43 2 8 775 43 2 3 43 2 4 43 2 5 43 2 6 800 43 2 2 43 2 3 43 2 3 43 2 4 825 43 2 1 43 2 1 43 2 2 43 2 3 850 48 3 7 43 2 0 43 2 1 43 2 1 ALTITUDE RANGE FT AVG GAS HEAT VALUE AT ALTI TUDE BTU CU FT SPECIFIC GRAVITY OF NATURAL GAS 0 58 0 60 0 62 0 64 Orifice No Manifold Pressure Orifice No Manifold Pressure Orifice No Manifold Pressure ...

Страница 44: ...h stuck closed 24 SECONDARY VOLTAGE FUSE IS OPEN Check for Short circuit in secondary voltage 24VAC wiring If status code recall is needed briefly remove then reconnect one main limit wire to display stored status code On REDLEDboards do not remove power or blower door before initiating status code recall After status code recall is completed component test will occur 327596 101 REV B 31 PRESSURE ...

Страница 45: ...hen fuse needs to be replaced Proper instrumentation is required to service electrical controls The control in this furnace is equipped with a Status Code LED Light Emitting Diode to aid in installation servicing and troubleshooting It can be viewed through the sight glass in blower access door The furnace control LED is either ON continuously rapid flashing or a code composed of 2 digits The firs...

Страница 46: ...N Media cabinet filter procedures NOTE Media cabinet or 1 in filter rack are accessories and are not included from the factory with standard furnace model 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 1 inch filter clean filter by spraying cold tap water through filter in o...

Страница 47: ...s shown at the bottom of the SERVICE label located on the front of blower access door d Verify blower is rotating in the correct direction ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Blower access door switch opens 115 v power to furnace control No component operation can occur unless switch is closed Exercise caution to avoid electrical shock fr...

Страница 48: ...ed to clean 2 lower passes of cell in same manner as upper pass 5 Repeat foregoing procedures until each cell in furnace has been cleaned 6 Using vacuum cleaner remove residue from each cell 7 Using vacuum cleaner with soft brush attachment clean burner assembly 8 Clean flame sensor with fine steel wool 9 Install NOx baffles if removed 10 Reinstall burner assembly Center burners in cell openings 1...

Страница 49: ...PU will lock out of Gas Heating mode and operate the inducer motor IDM until flame is no longer proved e Blower On Delay If the burner flame is proven the blower motor is energized on HEAT speed 25 sec after the gas valve GV is energized Simultaneously the electronic air cleaner terminal EAC 1 is energized and remains energized as long as the blower motor BLWM is energized f Blower Off Delay When ...

Страница 50: ...bleshooting Refer to the service label See Fig 50 Service Label The Troubleshooting Guide can be a useful tool in isolating furnace operation problems Beginning with the word Start answer each question and follow the appropriate arrow to the next item The Guide will help to identify the problem or failed component After replacing any component verify correct operation sequence PG8J M ...

Страница 51: ... component test 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 humidifier will not be turned on Was there a previous status code other than 11 Is door switch closed Is there 115V going to switch Replace door switch Replace transformer Does the control ...

Страница 52: ...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 selected blower off delay Check the following items first before proceeding to the next step Gas valve turned off Manual shut off valve Green Yellow wire MUST be connected to furnace sheet metal Flame...

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