Carrier 48VT(N) installation instructions 48VT--A, 1445

Page 22
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48VT-- A

Table 10 - Dry Coil Air Delivery* - Horizontal and Downflow Discharge - Unit 48VT-A24-60 Cont

UNIT

HEATING

MOTOR

WIRE

 

 

 

EXTERNAL STATIC PRESSURE (in. W.C.)

 

 

RISE

SPEED

COLOR

 

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

 

RANGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1445

1389

1341

1281

1236

1189

1139

1072

1027

 

 

 

 

Heating

60

NA

NA

NA

NA

NA

NA

NA

NA

 

 

Low

Blue

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

33

NA

NA

NA

NA

NA

NA

NA

NA

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1678

1635

1602

1558

1513

1474

1438

1404

1349

 

 

 

 

Heating

52

53

54

56

57

59

60

NA

NA

 

 

Med-Low2

Pink

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

29

30

30

31

32

33

34

NA

NA

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1962

1915

1880

1843

1794

1753

1711

1675

1628

 

30 - 60oF

 

 

Heating

44

45

46

47

48

50

51

52

53

48VT(-,N)A48115

Medium

Red

Rise (oF)

(17 - 33oC)

 

 

 

 

 

 

 

 

 

 

 

 

Heating

25

25

26

26

27

28

28

29

30

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2131

2088

2065

2013

1982

1941

1888

1860

1785

 

 

 

 

Heating

41

42

42

43

44

45

46

47

49

 

 

Med-High1

Orange

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

23

23

23

24

24

25

26

26

27

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2461

2409

2339

2286

2192

2140

2062

1968

1874

 

 

 

 

Heating

35

36

37

38

40

41

42

44

46

 

 

High

Black

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

20

20

21

21

22

23

23

25

26

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1445

1389

1341

1281

1236

1189

1139

1072

1027

 

 

 

 

Heating

NA

NA

NA

NA

NA

NA

NA

NA

NA

 

 

Low

Blue

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

NA

NA

NA

NA

NA

NA

NA

NA

NA

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1678

1635

1602

1558

1513

1474

1438

1404

1349

 

 

 

 

Heating

57

59

60

62

64

65

NA

NA

NA

 

 

Med-Low2

Pink

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

32

33

33

34

35

36

NA

NA

NA

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1962

1915

1880

1843

1794

1753

1711

1675

1628

 

35 - 65oF

 

 

Heating

49

50

51

52

54

55

56

57

59

48VT(-,N)A48130

Medium

Red

Rise (oF)

(19 - 36oC)

 

 

 

 

 

 

 

 

 

 

 

 

Heating

27

28

28

29

30

31

31

32

33

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2131

2088

2065

2013

1982

1941

1888

1860

1785

 

 

 

 

Heating

45

46

47

48

49

50

51

52

54

 

 

Med-High1

Orange

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

25

26

26

27

27

28

28

29

30

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2461

2409

2339

2286

2192

2140

2062

1968

1874

 

 

 

 

Heating

39

40

41

42

44

45

47

49

51

 

 

High

Black

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

22

22

23

23

24

25

26

27

29

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1448

1362

1296

1226

1168

1108

1071

998

905

 

 

 

 

Heating

47

50

52

55

58

61

63

NA

NA

 

 

Low1

Blue

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

26

28

29

31

32

34

35

NA

NA

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1722

1675

1614

1543

1499

1442

1408

1356

1308

 

 

 

 

Heating

39

41

42

44

45

47

48

50

52

 

 

Med-Low

Pink

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

22

23

23

24

25

26

27

28

29

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

1887

1847

1783

1726

1677

1625

1578

1527

1432

 

35 - 65oF

 

 

Heating

36

37

38

39

41

42

43

45

47

48VT(-,N)A60090

Medium2

Red

Rise (oF)

(19 - 36oC)

 

 

 

 

 

 

 

 

 

 

 

 

Heating

20

20

21

22

23

23

24

25

26

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2055

2008

1958

1927

1900

1768

1685

1581

1458

 

 

 

 

Heating

NA

NA

35

35

36

38

40

43

47

 

 

Med-High

Orange

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

NA

NA

19

20

20

21

22

24

26

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFM

2292

2238

2158

2049

1935

1840

1732

1635

1513

 

 

 

 

Heating

NA

NA

NA

NA

35

37

39

42

45

 

 

High

Black

Rise (oF)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating

NA

NA

NA

NA

20

21

22

23

25

 

 

 

 

Rise (oC)

 

 

 

 

 

 

 

 

 

 

 

 

 

22

Image 22
Contents Fig. 1 - Unit 48VT-A TABLE OF CONTENTSSAFETY CONSIDERATIONS Installation InstructionsStep 1 - Check Equipment RECEIVING AND INSTALLATIONINTRODUCTION Step 2 - Provide Unit Support48VT--A Fig. 2 - 48VT-A24-30Unit DimensionsA09146 48VT--A Fig. 3 - 48VT-A36-60Unit DimensionsA09147 SMALL CURB Fig. 4 - Roof Curb Dimensions48VT ROOF CURB DETAILInspection ACCESS PANELS MUST BE IN PLACE WHEN RIGGINGStep 5 - Rig and Place Unit Rigging/Lifting of Unit See FigStep 6 - Connect Condensate Drain Step 7 - Install Flue HoodStep 8 - Install Gas Piping Fig. 6 - Condensate TrapFig. 7 - Sediment Trap Step 9 - Install Duct ConnectionsConfiguring Units for Downflow Vertical Discharge FIRE OR EXPLOSION HAZARD48VT--A Table 1 - Physical Data - Unit 48VT-AFig. 8 - Supply and Return Duct Opening Horizontal Duct CoversTable 3 - Heating Inputs Table 1 - Physical Data - Unit 48VT-ACont’dTable 2 - Maximum Gas Flow Capacity 48VT--AHigh-VoltageConnections Step 10 - Install Electrical ConnectionsSpecial Procedures for 208-VOperation Control Voltage ConnectionsTransformer Protection Balance Point Setting-Thermidistator HybridPRE-START-UP ThermostatStep 1 - Check for Refrigerant Leaks Step 3 - Start-upHeating and Make Adjust- mentsSTART-UP Step 2 - Unit Sequence of OperationCheck Heating Control Adjust Gas InputFig. 11 - Burner Assembly Check Gas InputNormal Operation Limit SwitchesCheck Burner Flame Airflow and Temperature RiseChecking and Adjusting Refrigerant Charge Step 4 - Start-upCooling and Make Adjust- mentsRollout Switch Indoor Airflow and Airflow AdjustmentsTable 6 - Color Coding for Indoor Fan Motor Leads Gas Heating Fan Speed Set-upContinuous Fan Operation 48VT--A48VT--A Fig. 14 - Interface Fan Board IFBTable 8 - 48VT-AWet Coil Pressure Drop Table 7 - Filter Pressure Drop Table IN. W.C48VT--A UNIT48VT--A Heating48VT--A 129548VT--A 144548VT--A 1448Fig. 15 - 208/230-1-60Wiring Diagram, Unit 48VT-A 48VT A48VT--A Fig. 16 - 208/230-3-60Wiring Diagram, Unit 48VT-AA09209 50VT500173 REV Fig. 17 - Cooling Charging Table-Subcooling48VT--A A09099Air Filter MAINTENANCECleaning the Blower Motor and Wheel Indoor Blower and MotorFig. 18 - Blower Housing and Flue Collector Box Limit SwitchInduced Draft combustion air Blower Assembly Fig. 19 - Unit Access PanelsRefrigerant Circuit Electrical Controls and WiringOutdoor Fan Fig. 20 - Removal of Motor and Blower WheelHigh-PressureSwitch Pressure SwitchesLoss of Charge Switch Gas InputPage Fig. 24 - Refrigerant Circuit HPS - High Pressure SwitchLCS - Loss of Charge Switch AccuraterMetering De viceUNIT OPERATION AND SAFETY HAZARD TROUBLESHOOTINGSTART-UPCHECKLIST Synthetic Roof Precautionary ProcedurePURONR R-410AQUICK REFERENCE GUIDE 48VT--ASYMPTOM 48VT--ATable 13 - Troubleshooting Guide-LEDStatus Codes Table 12 - Troubleshooting Guide-Heating48VT--A TEMPERATURES Remove and Store in Job FilesI. PRELIMINARY INFORMATION MODEL NO PRESSURESEdition Date 04/09 48VT--ACatalog No 48VT---05SI Replaces 48VT---04SI