Nordyne MB7BM Series Installation Instructions Manual Download

Page: 17 / 32

table 5. airflow data for MB7eM air Handlers

B7eM

a-cabinet

Switch Settings

0 = oFF, 1 = on

cooling or Heating airflow (cFM)

dry coil eSP

1/5 2/6 3/7 4/8

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

585

550

520

460

420

405

710

670

650

610

560

530

475

440

845

790

765

715

680

655

625

580

890

865

840

785

760

710

680

655

955

925

900

850

825

790

770

720

1030

995

975

940

910

870

840

815

1115

1085

1060

1020

995

965

925

905

1155

1130

1095

1070

1040

1010

985

950

1200

1175

1145

1110

1085

1060

1025

1000

1240

1215

1195

1170

1140

1110

1080

1060

1320

1290

1265

1240

1215

1185

1160

1130

1355

1330

1305

1280

1255

1220

1200

1175

1405

1375

1345

1325

1295

1275

1250

1210

1440

1415

1385

1355

1325

1290

1255

1215

1465

1425

1390

1355

1320

1290

1260

1215

1465

1425

1390

1355

1320

1290

1260

1215

B7eM

B-cabinet

Switch Settings

0 = oFF, 1 = on

cooling or Heating airflow (cFM)

dry coil eSP

1/5 2/6 3/7 4/8

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

600

550

430

390

660

610

540

460

425

830

750

695

640

580

520

860

825

765

690

630

600

525

485

935

895

835

790

710

655

620

585

1045

975

920

875

830

795

720

685

1095

1040

995

950

900

850

805

750

1155

1105

1060

1010

965

920

870

825

1230

1185

1140

1090

1045

1010

965

920

1285

1260

1210

1165

1125

1080

1040

1010

1330

1290

1245

1205

1170

1125

1085

1045

1395

1365

1315

1275

1235

1205

1160

1130

1450

1405

1375

1335

1295

1260

1220

1180

1490

1450

1410

1385

1340

1300

1270

1230

1530

1485

1460

1425

1380

1350

1310

1280

1530

1490

1465

1425

1390

1350

1310

1285

B7eM

c-cabinet

Switch Settings

0 = oFF, 1 = on

cooling or Heating airflow (cFM)

dry coil eSP

1/5 2/6 3/7 4/8

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

710

580

395

830

690

675

530

505

930

875

710

665

560

530

1065

1015

900

840

800

705

665

635

1185

1115

1010

960

925

875

830

745

1275

1220

1175

1120

1060

970

930

890

1365

1350

1255

1200

1150

1105

1060

1025

1480

1430

1370

1325

1265

1225

1185

1140

1560

1535

1485

1430

1375

1335

1285

1240

1650

1600

1545

1500

1450

1405

1360

1305

1730

1685

1660

1610

1570

1520

1470

1420

1785

1740

1695

1645

1615

1545

1510

1470

1865

1820

1785

1750

1695

1655

1605

1560

1920

1890

1850

1805

1765

1715

1675

1640

2010

1965

1960

1900

1850

1810

1775

1730

2065

2020

1985

1955

1915

1880

1840

1810

note: When matched with two-stage outdoor units, the airflow on low (Y1 or W1) input will be 70% of the values shown in this table.

Summary of Contents for MB7BM Series

Page 1: ...nt role as well Pay attention to all safety warnings and any other special notes highlighted in the manual Improper installation of the furnace or failure to follow safety warnings could result in ser...

Page 2: ...ing 11 Turning the Blower Off 11 Blower Configurations 11 Selecting minimum Electric Heat Airflow 11 Determining Nominal System Capacity 11 3 speed Units 11 High Efficiency Units 12 Selecting Basic He...

Page 3: ...ment Do not store any of the following on or in contact with the unit Rags brooms vacuum cleaners or other cleaning tools spray or aerosol cans soap powders bleaches waxes cleaning compounds plastics...

Page 4: ...dbesetintopositionbeforerouting the refrigerant tubing Operation of an Air Handler During Construction CAUTION Failure to follow these instructions will void the factory warranty and may significantly...

Page 5: ...tments must be constructed and installed in accordance with NFPA and SMACNA construction standards Consult with local codes for special requirements For best sound performance be sure to install all t...

Page 6: ...nts air handler INSTALLATION The MB7 Series air handler is shipped ready for vertical upflow installation and is approved for attic basement alcove closetorcrawlspaceinstallationwithzeroclearance to c...

Page 7: ...ne gasket tape to the top of the air handler NOTE The blowers flanged surface is now beneath the air handler and will connect with the supply air duct 4 Carefully place the cased coil on top of the mo...

Page 8: ...ion of the unit in a suspended horizontal application is shown in Figure 5 When mating the blower and coil for horizontal left or right applications reference the upflow instructions on page 6 Make su...

Page 9: ...gures 14 16 Use only copper wire for the line voltage power supply to this unit Use proper code agency listed conduit and a conduit connector for connecting the supply wires to the unit Aluminum suppl...

Page 10: ...erkitforyour unit by referring to the list below or the units rating label A Size Cabinet 15Kw max B Size Cabinet 20Kw max C Size Cabinet 20Kw max 1 Connect the 2 wire plug of the air handler to the m...

Page 11: ...Disconnect all electrical power to the unit and remove the upper door 2 Remove the black and red wires from the blower motor jumping terminal Discard the blower motor jumping terminal Startup Adjustme...

Page 12: ...ch nominal system capacity When operating in the heat pump mode a higher basic airflow setting will increase the energy efficiency and capacitybutwillalsodecreasethesupplyairtemperature For maximum ca...

Page 13: ...eate excessive loads on the motor resulting in higher than normal operating temperatures and shortened service life It is recommended that the blower compartment be cleaned of dirt or lint that may ha...

Page 14: ...mension B Dimension C A 12 3 4 24 3 4 14 1 4 B 12 3 4 24 3 4 17 1 2 C 18 1 4 27 1 2 21 B A 12 7 8 3 4 TYP 1 3 4 1 7 8 K O 3 1 4 1 1 4 C 22 1 1 7 8 3 1 2 5 1 2 2 5 8 1 1 8 K O TYP 1 1 4 2 7 8 TOP VIEW...

Page 15: ...ount Kit Blower Motor Blower Wheel Blower Housing Transformer Control Board Coil Assembly Outlet Heater Box Lower Front Bracket Blower Door Motor Control Board Rear Bracket Front Joining Bracket Figur...

Page 16: ...0 845 780 705 610 530 Corrected ESP1 0 08 0 19 0 31 0 42 0 54 0 65 0 76 Med 1335 1290 1235 1175 1100 1015 925 805 Corrected ESP1 0 10 0 22 0 34 0 46 0 59 0 71 High 1470 1425 1360 1300 1225 1135 1050 9...

Page 17: ...685 0 1 1 0 1095 1040 995 950 900 850 805 750 1 1 1 0 1155 1105 1060 1010 965 920 870 825 0 0 0 1 1230 1185 1140 1090 1045 1010 965 920 1 0 0 1 1285 1260 1210 1165 1125 1080 1040 1010 0 1 0 1 1330 12...

Page 18: ...0 1 0 650 0 0 1 1 2 TON 1300 0 0 1 1 4 TON 700 0 1 0 0 1350 0 1 0 0 750 0 1 0 1 1400 0 1 0 1 800 0 1 1 0 2 5 TON 1450 0 1 1 0 850 0 1 1 1 1500 0 1 1 1 875 1 0 0 0 1550 1 0 0 0 950 1 0 0 1 1600 1 0 0 1...

Page 19: ...0 1 0 0 700 1 15 1300 1 0 1 0 1 750 1 20 1500 1 0 1 1 0 800 1 25 N A 1 0 1 1 1 850 1 30 N A 1 1 0 0 0 875 1 1 0 0 1 950 1 1 0 1 0 1050 1 1 0 1 1 1150 1 1 1 0 0 1250 1 1 1 0 1 1350 1 1 1 1 0 1400 1 1 1...

Page 20: ...1 7 68 1 50 25 70 020H XX 53 1 103 1 60 110 46 5 43 3 89 8 50 45 90 C 2000CFM None 5 5 15 15 5 5 15 15 005H XX 30 30 35 35 26 7 26 7 30 30 008H XX 44 6 44 6 45 45 39 3 39 3 40 40 010H XX 55 55 60 60 4...

Page 21: ...Thermostat Y1 C Y1 W2 Typical 2 Stage Air Conditioner with Variable Speed Air Handler Typical 2 Stage Heat Pump with Variable Speed Air Handler Y2 Y2 Y2 Y2 OUT W E R Air Conditioner Air Handler Air C...

Page 22: ...age Control Board MB7BM Models Figure 11 Two Stage Control Board MB7EM VM Models LED 1 BLWDTC BLWDTC_R HEAT COOL EAC L 1 L 2 P2 R C G W Y 3A Fuse HEATER P1 C R G Y2 Y O 1W 2W 1Y L LED 1 HEATER P1 L 2...

Page 23: ...W C EXPANSION PORT R RED GREEN TEST PORT BLOWER MOTOR RED INPUTS COOL HEAT FAN SPEED OUTPUTS STATUS LIGHTS 2 3 4 5 6 7 8 OFF ON A B GREEN RED STATUS NOT USED TEST PORT BLOWER MOTOR R C Y1 TWIN DEHUM...

Page 24: ...PLUG HOUSING WHEN HEATER KIT NOT INSTALLED BLACK RED WHITE BROWN BROWN BLACK WHITE RED GRAY YELLOW WHITE GREEN GRAY RED NOTES 1 The blower motor speed tap connection may not be as shown See the Insta...

Page 25: ...2 3 4 5 6 9 PIN HOUSING 9 PIN PLUG 6 PIN PLUG HARNESS BLACK WHITE GRAY RED BLACK RED WHITE BLACK MOTOR 6 PIN PLUG HARNESS WHITE BLACK BLUE GREEN YELLOW ORANGE RED BROWN BLUE GREEN ORANGE RED BROWN YE...

Page 26: ...R BLACK WHITE 6 PIN PLUG 6 PIN PLUG BLACK WHITE BLACK WHITE GRAY RED BLACK HARNESS HARNESS GREEN BROWN RED ORANGE YELLOW GREEN BLUE BROWN RED ORANGE YELLOW GREEN BLUE RED CUT WIRES TO REMOVE PLUG HOU...

Page 27: ...delay W Y AUX HEAT On 5 KW Stage 1 Heat on instantly Cool blower on after 3 second delay 10 KW Stage 1 Heat on instantly Cool blower on after 3 second delay Stage 2 Heat on after 5 seconds delay 15 KW...

Page 28: ...ly Blower off after 15 second delay W1 W2 EHEAT On 5 KW Stage 1 Heat on instantly Heat blower on after 3 second delay 10 KW Stage 1 Heat on instantly Heat blower on after 3 second delay Stage 2 Heat o...

Page 29: ...off instantly Heat blower turns off after 40 second delay W1 W2 Y Y2 AUX HEAT On 5 KW Stage 1 Heat on instantly Cool blower on after 3 second delay 10 KW Stage 1 Heat on instantly Cool blower on afte...

Page 30: ...30...

Page 31: ...31...

Page 32: ...Replaces 7091750 ATTENTION INSTALLERS It is your responsibility to know this product better than your customer This includes being able to install the product according to strict safety guidelines and...

Search results

Summary of Contents for MB7BM Series

Reviews:

Related manuals for MB7BM Series

Brands by name

Popular brands

Nordyne MB7BM Series, Installation Instructions Manual

Search results

Summary of Contents for MB7BM Series

Reviews:

Related manuals for MB7BM Series

Brands by name

Popular brands