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SERVICE AND TECHNICAL SUPPORT MANUAL

Gas Furnace: (F/G)9MVE

Specifications  subject to change without notice.

440 04 4801 04

15

Table 5

COOLING

4

 AND HEATING AIR DELIVERY - CFM (Bottom Return

5

 with filter)

(SW1-5 and SW2

2 set to OFF, except as indicated. See notes 

1

 and 

2

)

Unit Size

Cooling Switch Settings

External Static Pressure (ESP)

SW2-8

SW2-7

SW2

6

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

040-10

Clg Default:

OFF

OFF

OFF

1125

1080

1020

970

905

855

805

755

700

635

Cooling  (SW2)

OFF

OFF

ON

615

555

510

475

440

395

355

270

230

note 8

OFF

ON

OFF

785

740

695

665

630

590

565

520

485

450

OFF

ON

ON

990

950

910

875

850

815

770

720

670

615

ON

OFF

OFF

1125

1080

1020

970

905

855

805

755

700

635

ON

OFF

ON

1125

1080

1020

970

905

855

805

755

700

635

ON

ON

OFF

1125

1080

1020

970

905

855

805

755

700

635

ON

ON

ON

1125

1080

1020

970

905

855

805

755

700

635

Clg SW2:

Maximum Clg Airflow 

2

1125

1080

1020

970

905

855

805

755

700

635

Heating

(SW1)

High Heat Airflow 

3

815

770

725

695

660

625

595

550

510

475

Low Heat Airflow 

3

660

605

560

530

495

450

415

340

300

note  7

040-12

Clg Default:

OFF

OFF

ON

575

540

490

435

385

See note  4

Cooling  (SW2)

OFF

ON

OFF

770

725

685

640

600

560

515

480

See note 4

OFF

ON

ON

945

910

875

835

800

770

735

695

665

635

ON

OFF

OFF

1140

1105

1075

1040

1005

970

930

885

835

790

ON

OFF

ON

1250

1210

1165

1115

1065

1015

965

915

860

810

ON

ON

OFF

1250

1210

1165

1115

1065

1015

965

915

860

810

ON

ON

ON

1250

1210

1165

1115

1065

1015

965

915

860

810

Clg SW2:

Maximum Clg Airflow

2

1250

1210

1165

1115

1065

1015

965

915

860

810

Heating

(SW1)

High Heat Airflow

3

860

825

785

745

705

670

630

595

565

525

Low Heat Airflow

3

650

595

545

500

460

415

365

320

275

note  7

060-12

Clg Default:

OFF

OFF

OFF

1250

1210

1165

1115

1065

1015

955

895

815

745

OFF

OFF

ON

605

565

510

455

420

See note  4

OFF

ON

OFF

785

750

705

675

630

585

See note 4

OFF

ON

ON

955

920

895

860

825

785

755

720

685

650

ON

OFF

OFF

1135

1110

1080

1055

1020

990

935

880

825

745

ON

OFF

ON

1250

1210

1165

1115

1065

1015

955

895

815

745

ON

ON

OFF

1250

1210

1165

1115

1065

1015

955

895

815

745

ON

ON

ON

1250

1210

1165

1115

1065

1015

955

895

815

745

Clg SW2:

Maximum Clg Airflow

2

1250

1210

1165

1115

1065

1015

955

895

815

745

Heating

(SW1)

High Heat Airflow

3

1125

1100

1070

1045

1010

980

925

875

820

740

Low Heat Airflow

3

900

865

835

800

760

720

690

650

610

580

060-14

Clg Default:

OFF

OFF

OFF

1330

1295

1260

1220

1190

1150

1110

1075

1045

1005

Cooling  (SW2)

OFF

OFF

ON

725

600

435

280

210

See note 

4

OFF

ON

OFF

780

725

660

615

540

See note 

4

OFF

ON

ON

975

925

875

835

785

750

690

655

610

570

ON

OFF

OFF

1160

1120

1090

1045

1010

970

920

885

840

800

ON

OFF

ON

1330

1295

1260

1220

1190

1150

1110

1075

1045

1005

ON

ON

OFF

1705

1650

1595

1545

1475

1415

1340

1275

1200

1105

ON

ON

ON

1705

1650

1595

1545

1475

1415

1340

1275

1200

1105

Clg SW2:

Maximum Clg Airflow 

2

1705

1650

1595

1545

1475

1415

1340

1275

1200

1105

Heating

(SW1)

High Heat Airflow 

3

1145

1105

1075

1030

995

955

905

870

825

785

Low Heat Airflow 

3

870

820

760

720

655

620

560

525

470

435

080-16

Clg Default:

OFF

OFF

OFF

1805

1765

1720

1665

1610

1540

1475

1400

1315

1235

Cooling  (SW2)

OFF

OFF

ON

775

635

455

230

See note 

8

OFF

ON

OFF

840

740

675

625

555

See note 

4

OFF

ON

ON

995

955

910

860

815

770

720

660

620

585

ON

OFF

OFF

1175

1140

1090

1060

1025

980

940

905

855

815

ON

OFF

ON

1325

1280

1245

1210

1180

1140

1105

1070

1025

990

ON

ON

OFF

1545

1515

1480

1445

1410

1380

1350

1315

1245

1175

ON

ON

ON

1805

1765

1720

1665

1610

1540

1475

1400

1315

1235

Clg SW2:

Maximum Clg Airflow 

2

1805

1765

1720

1665

1610

1540

1475

1400

1315

1235

Heating

(SW1)

High Heat Airflow 

3

1520

1490

1455

1420

1385

1355

1320

1285

1220

1155

Low Heat Airflow 

3

1180

1145

1095

1065

1030

985

945

910

860

820

Summary of Contents for F9MVE Series

Page 1: ...abels The signal word WARNING is used throughout this manual in the following manner Safety alert symbol When you see this symbol on the unit and in instructions or manuals be alert to the potential f...

Page 2: ...l result in enhanced installation reliability or operation FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in dangerous operation perso...

Page 3: ...in Connected Condensate Drain Trapped Manual Gas Shut off Upstream of Furnace Drip Leg Gas Valve turned ON Type of Gas Natural Propane Filter Type and Size Shade in Final Furnace Settings Below O N O...

Page 4: ...l Setup Switches SW1 The furnace control has 8 setup switches that may be set to meet the application requirements To set these setup switches for the appropriate requirement 1 Remove blower door 2 Lo...

Page 5: ...soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life WARNING Adjustments FIRE HAZ...

Page 6: ...0 Btu cu ft Specific gravity 0 62 Therefore Orifice No 44 Furnace is shipped with No 44 orifices In this example all main burner orifices are the correct size and do not need to be changed to obtain p...

Page 7: ...ease input rate Figure 3 Redundant Automatic Gas Control Valve 2 Stage without Tower Pressure Ports ON OFF Switch Regulator Seal Cap RegulatorAdjustment Regulator Seal Cap under Cap 1 2 NPT Outlet 1 8...

Page 8: ...s warning could result in personal injury death and or property damage Manifold pressure tap set screw must be tightened or 1 8 in NPT pipe plug must be installed to prevent gas leaks WARNING c Tighte...

Page 9: ...300 21 171 343 857 62 58 116 290 22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48...

Page 10: ...43 3 8 1 6 42 3 2 1 4 850 44 3 8 1 6 43 3 5 1 5 43 3 6 1 5 43 3 7 1 6 875 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 4000 900 44 3 4 1 4 44 3 5 1 5 44 3 7 1 5 44 3 8 1 6 1219 925 44 3 2 1 4 44 3 4 1...

Page 11: ...re and airflow FURNACE DAMAGE HAZARD Failure to follow this caution may result in S Overheating the heat exchangers or condensing flue gases in heat exchanger areas not designed for condensate S Short...

Page 12: ...r off delay See Table 4 and Figure 4 Figure 5 Table 4 Blower Speed Taps DESIRED HEATING MODE BLOWER OFF DELAY SEC SETUP SWITCH SW1 7 and 8 POSITION 90 OFF OFF 120 ON OFF 150 OFF ON 180 ON ON Adjust Co...

Page 13: ...r refer to unit wiring diagram TWN 1 CFM 2 3 4 5 6 7 8 SW2 CF AC SW2 1 Twining OFF Allows for selection of furnace Main OFF or Secondary ON when Twinned furnace setup is required See kit instructions...

Page 14: ...can be established that limit is functioning properly and will operate if there is a restricted return air supply or motor failure If limit control does not function during this test cause must be de...

Page 15: ...FF OFF ON 605 565 510 455 420 See note 4 OFF ON OFF 785 750 705 675 630 585 See note 4 OFF ON ON 955 920 895 860 825 785 755 720 685 650 ON OFF OFF 1135 1110 1080 1055 1020 990 935 880 825 745 ON OFF...

Page 16: ...0 22 Clg Default OFF OFF OFF 2010 1960 1910 1850 1800 1750 1690 1645 1565 1480 Cooling SW2 OFF OFF ON 1015 805 645 550 480 See note 4 OFF ON OFF 1075 975 915 835 765 See note 4 OFF ON ON 1205 1135 105...

Page 17: ...itioned air is discharged upward Since this furnace can be installed in any of the 4 positions shown in Figure 7 you must revise your orientation to component location accordingly Figure 7 Multipoise...

Page 18: ...isconnecting the limit switch To retrieve Status Codes follow the procedure below 2 Turn Setup Switch SW1 1 ON 3 Manually close blower door switch 4 Control will flash up to 7 Status Codes 5 The last...

Page 19: ...eason 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...

Page 20: ...balance will be affected 7 If greasy residue is present on blower wheel remove wheel from the blower housing and wash it with an appropriate degreaser To remove wheel a Mark blower wheel location on s...

Page 21: ...following items must be performed by a qualified service technician If the burners develop an accumulation of light dirt or dust they may be cleaned by using the following procedure NOTE Use a back up...

Page 22: ...the Hot Surface Igniter NOTE Use propane resistant pipe dope to prevent leaks Do not use Teflon tape 13 Install the gas pipe to the gas valve Figure 12 Igniter Position Side View L12F041 2 in 2 5 mm...

Page 23: ...quired Verify a condensate trap gasket is included in the service kit or obtain one from your local distributor 1 Disconnect power at external disconnect fuse or circuit breaker 2 Turn off gas at exte...

Page 24: ...wiring diagram and reconnect wires to flame rollout switch gas valve igniter and flame sensor 10 Turn on gas and electrical supplies to furnace 11 Check furnace operation through two complete heat op...

Page 25: ...uart of anti freeze solution into the funnel tube Antifreeze should run through the collector box overfill condensate trap and flow to an open drain 8 Replace the rubber plug in the port on the collec...

Page 26: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 440 04 4801 04 26 Figure 15 Service Label 340688 2 REV D...

Page 27: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 27 440 04 4801 04 Figure 16 Wiring Diagram 340688 2 REV D...

Page 28: ...t flashes When done put setup switch SW1 1 in the OFF position Was there a previous status code other than the heartbeat Go to section below for the status code that was flashed Does the control respo...

Page 29: ...t check manifold pressure If OK check burner carryover and flame sensor location Clean flame sensor with fine steel wool and recheck current Nominal current is 4 0 to 6 0 microamps Is current near typ...

Page 30: ...t high speed and the high heat pressure switch relay HPSR is de energized to close the NC contact When sufficient pressure is available the high heat pressure switch HPS closes and the high heat gas v...

Page 31: ...tor BLWM will continue operating at cooling airflow for an additional 90 seconds Jumper Y Y2 to DHUM to reduce the cooling off delay to 5 seconds See Figure 4 b Two Stage Thermostat and Two Speed Cool...

Page 32: ...eat pump the furnace control automatically changes the timing sequence to avoid long blower off times during demand defrost cycles Whenever W W1 is energized along with Y1 or Y Y2 the furnace control...

Page 33: ...801 04 Figure 20 Variable Speed Furnace with Single Stage Heat Pump Dual Fuel L09F026 NOTE 9 Figure 21 Variable Speed Furnace with Two Stage Heat Pump Dual Fuel L09F028 NOTE 9 Figure 22 Variable Speed...

Page 34: ...stallation Instructions for additional information and setup procedure 4 When using a Humidity Sensing Thermostat set DEHUMIDIFY OPTIONS to H DE ENRGZD FOR DEHUM 5 Optional connection If wire is conne...

Page 35: ...ector box Condensate trap Condensate trap elbow Gaskets WARNING FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in dangerous operation...

Page 36: ...ed X ECM S Single stage T Two stage FEATURE B Base AFUE Efficiency E Extra AFUE Efficiency C Communicating D Dual Certified 2 pipe or 1 pipe R 2 pipe only S Single stage T Two stage N Standard L Low N...

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