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Carrier WEATHERMAKER 50TFQ008, Installation, Start-Up And Service Instructions Manual

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Carrier WEATHERMAKER 50TFQ008 Installation, Start-Up And Service Instructions Manual Download Page 19

19

Table 14 — Fan Performance (English), 50TFQ008,009 — Horizontal Discharge Units

LEGEND

NOTES:
1.

Boldface 

indicates field-supplied drive required.

2.

  indicates field-supplied motor and drive required.

3. Maximum usable bhp is 2.40 with standard 1.5-hp motor. Exten-

sive motor and electrical testing on these units ensures that the

full horsepower range of the motor can be utilized with confi-
dence. Using your fan motors up to the brakepower ratings
shown will not result in nuisance tripping or premature motor
failure.

4. Use of field-supplied motor may affect wire sizing. Contact

Carrier representative to verify.

5. Values include losses for filters, unit casing, and wet coils.
6. Motor drive range is 620 to 880 rpm. All other rpm’s will require a

field-supplied drive.

Table 15 — Fan Performance (English), 50TFQ012 — Horizontal Discharge Units

LEGEND

NOTES:
1.

Boldface 

indicates field-supplied drive required.

2.

  indicates field-supplied motor and drive required.

3. Maximum usable bhp is 2.90 with standard 2.0-hp motor. Exten-

sive motor and electrical testing on these units ensures that the

full horsepower range of the motor can be utilized with confi-
dence. Using your fan motors up to the brakepower ratings
shown will not result in nuisance tripping or premature motor
failure.

4. Use of field-supplied motor may affect wire sizing. Contact

Carrier representative to verify.

5. Values include losses for filters, unit casing, and wet coils.
6. Motor drive range is 690 to 900 rpm. All other rpm’s will require a

field-supplied drive.

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200

459

0.42

549

0.62

625

0.83

691

1.06

753

1.31

805

1.58

842

1.87

857 2.16

851 2.45

823 2.70

2400

482

0.50

569

0.71

645

0.95

708

1.18

768

1.40

824

1.72

872

2.01

909 2.32

931 2.64

935 2.96

2600

507

0.59

592

0.82

663

1.08

727

1.32

784

1.58

839

1.87

891

2.17

936 2.49

973 2.82

999 3.16

2800

533

0.71

615

0.95

683

1.20

747

1.49

802

1.75

855

2.04

906

2.35

954 2.67

997 3.01 1034 3.36

3000

559

0.83

637

1.09

704

1.35

765

1.66

823

1.94

872

2.22

921

2.54

969 2.88 1014 3.22

—

—

3200

585

0.96

660

1.24

727

1.52

785

1.83

841

2.15

892

2.45

939

2.76

984 3.10

—

—

—

—

3400

610

1.10

682

1.41

750

1.72

806

2.01

860

2.36

912

2.69

958

3.01 1002 3.34

—

—

—

—

3600

636

1.25

707

1.60

772

1.93

828

2.23

880

2.57

930

2.95

978

3.29

—

—

—

—

—

—

3800

661

1.41

733

1.82

795

2.15

852

2.48

901

2.80

949

3.20

—

—

—

—

—

—

—

—

Bhp

—

Brake Horsepower

Rpm —

Fan Wheel Speed, Revolutions per Minute

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

3000

484

0.55

560

0.70

631

0.87

690

1.03

747

1.20

800

1.38

850

1.52

879 1.38

925 1.81

964 1.92

3200

505

0.66

579

0.81

646

0.98

708

1.16

761

1.34

812

1.51

862

1.71

908 1.85

944 2.01

984 2.09

3400

527

0.78

599

0.93

664

1.11

724

1.30

775

1.48

827

1.67

873

1.85

920 2.07

963 2.21 1001 2.31

3600

548

0.92

619

1.05

680

1.24

738

1.43

794

1.64

840

1.83

888

2.04

931 2.23

976 2.47 1017 2.62

3800

571

1.08

639

1.19

698

1.39

756

1.60

810

1.81

856

2.02

901

2.23

945 2.44

986 2.65 1029 2.89

4000

593

1.25

659

1.35

717

1.56

773

1.78

823

1.98

875

2.22

915

2.42

960 2.65 1000 2.87

1039 3.10

4200

616

1.45

680

1.53

737

1.74

789

1.95

841

2.18

889

2.41

934

2.65

972 2.87

1015 3.12 1053 3.34

4400

639

1.67

701

1.73

757

1.92

807

2.16

858

2.41

903

2.62

951

2.89

990 3.12 1028 3.36

—

—

4600

662

1.91

722

1.95

777

2.13

827

2.38

874

2.62

921

2.87

965

3.11 1008 3.39

—

—

—

—

4800

686

2.17

744

2.20

797

2.36

846

2.62

891

2.85

938

3.14

980

3.37

—

—

—

—

—

—

5000

710

2.45

766

2.47

816

2.61

866

2.86

910

3.12

934

3.39

—

—

—

—

—

—

—

—

Bhp

—

Brake Horsepower

Rpm —

Fan Wheel Speed, Revolutions per Minute

Summary of Contents for WEATHERMAKER 50TFQ008

Page 1: ...LADE ECONOMIZER Step 7 Adjust Indoor Fan Speed 14 PRE START UP 20 START UP 20 21 SERVICE 22 24 TROUBLESHOOTING 25 26 START UP CHECKLIST CL 1 GENERAL This literature contains installation start up and service instructions for 50TFQ rooftop units bearing the Mark of the European Community CE These units are designed in accordance with European Standard EN60335 2 40 and dis play the following symbols...

Page 2: ...rizontal Units Only Provide a level concrete slab that extends a minimum of 152 mm 6 in be yond unit cabinet The slab should be 203 mm 8 in thick with 102 mm 4 in above grade Install a gravel apron in front of condenser coil air inlet to prevent grass and foliage from ob structing airflow NOTE Horizontal units may be installed on a roof curb if required Step 2 Field Fabricate Ductwork On verti cal...

Page 3: ...nsulated panels 1 in thick polyurethane foam 13 4 lb density 3 Dimensions in are in millimeters 4 Roof curb 16 gage steel 5 Attach ductwork to curb flanges of duct rest on curb 6 Service clearance 4 ft on each side 7 Direction of airflow 8 Connector packages CRBTMPWR001A00 and 2A00 are for thru the curb gas type Packages CRBTMPWR003A00 and 4A00 are for thru the bottom type gas connections ROOF CUR...

Page 4: ...ation Operating weight is shown in Tables 1A and 1B and Fig 4 Lifting holes are provided in base rails as shown in Fig 4 and 5 Refer to rigging instructions on unit POSITIONING Maintain clearance around and above unit to provide proper airflow and service access See Fig 5 Position unit on roof curb so that the following clearances are maintained 7 mm 1 4 in clearance between roof curb and base rai...

Page 5: ...al c Overhead 60 in to assure proper outdoor fan operation d Between units control box side 42 in per NEC National Electrical Code e Between unit and ungrounded surfaces control box side 36 in per NEC f Between unit and block or concrete walls and other grounded surfaces control box side 42 in per NEC g Horizontal supply and return end 0 inches 6 With the exception of the clearance for the condens...

Page 6: ...81 x 381 Type Drive Belt Belt Belt Nominal L s 1230 1415 1700 Motor kW 1 12 1 12 1 50 Maximum Continuous BkW 1 79 1 79 2 16 Motor Frame Size 56 56 56 Fan r s Range 10 33 14 67 10 33 14 67 11 50 15 00 Motor Bearing Type Ball Ball Ball Maximum Allowable r s 26 7 26 7 26 7 Motor Pulley Pitch Diameter Min Max mm 61 86 61 86 86 112 Nominal Motor Shaft Diameter mm 16 16 16 Fan Pulley Pitch Diameter mm 1...

Page 7: ...5 1 15 x 15 1 15 x 15 Type Drive Belt Belt Belt Nominal Cfm 2600 3000 3600 Motor Hp 11 2 11 2 2 Maximum Continuous Bhp 2 40 2 40 2 90 Motor Frame Size 56 56 56 Fan Rpm Range 620 880 620 880 690 900 Motor Bearing Type Ball Ball Ball Maximum Allowable Rpm 1600 1600 1600 Motor Pulley Pitch Diameter Min Max in 2 4 3 4 2 4 3 4 3 4 4 4 Nominal Motor Shaft Diameter in 5 8 5 8 5 8 Fan Pulley Pitch Diamete...

Page 8: ...in 10 Use the formula shown in Table 2 Note 3 to determine the percent voltage imbalance Operation on improper line voltage or exces sive phase imbalance constitutes abuse and may cause damage to electrical components Such operation would invalidate any applicable Carrier warranty Unit cabinet must have an uninterrupted unbroken electri cal ground to minimize the possibility of personnal injury if...

Page 9: ...IFM TYPE VOLTAGE RANGE COMPRESSOR each OFM FLA each IFM FLA ELECTRIC HEAT POWER SUPPLY DISCONNECT SIZE Min Max RLA LRA Nominal kW FLA MCA MOCP FLA LRA 008 400 3 50 STD 360 440 6 7 42 0 0 6 2 6 18 9 20 20 108 9 6 13 9 36 3 40 36 122 11 5 16 6 39 6 40 39 125 19 3 27 9 53 8 60 52 136 22 9 33 1 60 3 70 58 141 28 9 41 7 71 0 80 68 150 009 400 3 50 STD 360 440 7 3 69 0 0 6 2 6 20 2 25 21 162 9 6 13 9 37...

Page 10: ...equired clearance between the high and low voltage wiring 4 Connect thermostat wires to screw terminals of low voltage connector see Fig 10 NOTE If thru the bottom power connections are used refer to the accessory installation instructions for information on power wiring Refer to Fig 5 for drilling holes in basepan DEFROST BOARD The defrost board timer cycle is set to 30 minutes To change the cycl...

Page 11: ...imum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 8 2 Remove filter access panel by raising panel and swinging panel outward Panel is now disengaged from track and can be removed No tools are required to remove filter ac cess panel Remove outdoor air opening panel Save pan els and screws See Fig 13 Remove optional outdoor air damper hood package ...

Page 12: ...ps pro vided See Fig 21 Make sure OAT terminals are posi tioned up 10 Replace outdoor air opening panel using screws from Step 2 Replace filter access panel Ensure the filter ac cess panel slides along the tracks and is securely engaged 11 Fasten hood top and side plate assembly to outdoor air opening panel with screws provided 12 Place knob supplied with economizer on OAT See Fig 21 Set for 2 C 3...

Page 13: ...O N OPEN 3 1 T P P1 T1 4 2 5 S S O D C TR B REV B 1 9 8 8 1 8 A H U M I D I T Y 90 70 60 30 10 D C B A 60 65 70 75 55 50 85 80 DAMPER DAMPER CLOSED OPEN OUTDOOR TEMP F REV 97 3672 CW SETPOINTS CCW CONTACTS SHOWN IN HIGH ENTHALPY RUSH AT 24VAC 3 mA MIN AT 11 VDC CONTACT RATINGS 1 5A RUN 3 5A IN OR UNPOWERED STATE 1 2 3 TR TR1 24V AC ENTHALPY CONTROL ENTHALPY CONTROL HOOD Fig 21 Durablade Economizer...

Page 14: ...eyway of pulley hub and tighten setscrew See Tables 1A and 1B for speed change for each full turn of pulley flange To align fan and motor pulleys 1 Loosen fan pulley setscrews 2 Slide fan pulley along fan shaft 3 Make angular alignment by loosening motor from mounting plate To adjust belt tension 1 Loosen fan motor mounting nuts 2 Sizes 008 and 009 Slide motor mounting plate away from fan scroll f...

Page 15: ...BLE CONTINUOUS BkW MAXIMUM ACCEPTABLE CONTINUOUS BHP MAXIMUM ACCEPTABLE OPERATING WATTS MAXIMUM AMP DRAW 008 Standard 400 1 79 2 40 2120 2 7 009 Standard 400 1 79 2 40 2120 2 7 012 Standard 400 2 16 2 90 2615 3 6 Bhp Brake Horsepower BkW kW x Motor Efficiency UNIT 50TFQ MOTOR PULLEY TURNS OPEN 0 1 2 1 11 2 2 21 2 3 31 2 4 41 2 5 008 009 14 67 14 25 13 83 13 33 12 92 12 50 12 08 11 67 11 25 10 83 1...

Page 16: ...2 0 93 13 1 1 12 14 0 1 30 14 8 1 51 15 7 1 77 16 4 2 02 17 2 2 35 1200 9 3 0 52 10 5 0 69 11 6 0 87 12 6 1 05 13 5 1 26 14 3 1 46 15 1 1 66 15 9 1 88 16 7 2 14 17 4 2 44 1300 9 8 0 54 11 0 0 81 12 1 1 01 13 0 1 20 13 9 1 41 14 7 1 63 15 5 1 84 16 2 1 98 16 9 2 29 17 6 2 56 1400 10 4 0 77 11 5 0 94 12 6 1 16 13 5 1 37 14 3 1 58 15 1 1 80 15 9 2 04 16 6 2 27 17 3 2 51 1500 11 0 0 92 12 0 1 10 13 0 ...

Page 17: ...03 13 6 1 25 14 4 1 46 14 9 1 69 15 1 1 92 15 0 2 15 1200 8 3 0 42 9 8 0 59 11 0 0 78 12 0 0 95 13 0 1 15 13 9 1 36 14 8 1 58 15 5 1 82 16 0 2 06 16 4 2 31 1300 8 8 0 51 10 2 0 69 11 3 0 88 12 4 1 08 13 3 1 28 14 2 1 49 15 0 1 72 15 8 1 96 16 5 2 21 17 1 2 47 1400 9 2 0 60 10 6 0 80 11 7 0 99 12 7 1 22 13 7 1 42 14 5 1 63 15 3 1 87 16 1 2 12 16 9 2 38 1500 9 7 0 71 11 0 0 91 12 1 1 12 13 0 1 35 14...

Page 18: ...716 1 15 772 1 38 824 1 63 884 1 95 934 2 30 916 2 64 1019 3 09 2400 534 0 61 613 0 84 677 1 06 738 1 30 794 1 55 844 1 81 892 2 08 944 2 40 987 2 76 1039 3 20 2600 565 0 74 639 0 97 703 1 20 761 1 46 816 1 74 866 2 01 913 2 29 957 2 58 1004 2 91 1050 3 31 2800 597 0 89 665 1 12 731 1 40 786 1 66 839 1 93 889 2 23 935 2 52 978 2 62 1019 3 13 1061 3 47 3000 629 1 06 694 1 29 759 1 59 812 1 88 862 2...

Page 19: ...857 2 16 851 2 45 823 2 70 2400 482 0 50 569 0 71 645 0 95 708 1 18 768 1 40 824 1 72 872 2 01 909 2 32 931 2 64 935 2 96 2600 507 0 59 592 0 82 663 1 08 727 1 32 784 1 58 839 1 87 891 2 17 936 2 49 973 2 82 999 3 16 2800 533 0 71 615 0 95 683 1 20 747 1 49 802 1 75 855 2 04 906 2 35 954 2 67 997 3 01 1034 3 36 3000 559 0 83 637 1 09 704 1 35 765 1 66 823 1 94 872 2 22 921 2 54 969 2 88 1014 3 22 ...

Page 20: ...2 only is rotating in the proper direction To determine whether or not compressor is rotating in the proper direction 1 Connect service gages to suction and discharge pressure fittings 2 Energize the compressor 3 The suction pressure should drop and the discharge pres sure should rise as is normal on any start up If the suction pressure does not drop and the discharge pres sure does not rise to no...

Page 21: ...ion When the supply air temperature is between 13 C 55 F and 11 C 52 F the supply air thermostat has open switches between the T2 and 24 vac terminals and between the T1 and 24 vac terminals This causes the economizer damper to remain in an intermediate open position If the supply air temperature falls below 11 C 52 F a switch on the supply air thermostat is closed between the T1 terminal and the ...

Page 22: ...wn between the 2 coil sections to remove dirt and de bris Clean the outer surfaces with a stiff brush in the nor mal manner 6 Secure the sections together Reposition the coil sections and remove the coil corner post from between the top panel and center post Install the coil corner post and coil center post and replace all screws CONDENSATE DRAIN Check and clean each year at start of cooling seaso...

Page 23: ...e gage to the service port on the suction line Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading Indoor air cfm must be within the normal operating range of the unit An accurate superheat thermocouple or thermistor type thermometer and a gage manifold are required when using the superheat charging method for eva...

Page 24: ...24 Fig 32 Cooling Charging Chart 50TFQ009 Fig 33 Cooling Charging Chart 50TFQ012 ...

Page 25: ...in refrigerant system Locate restriction and remove Compressor operates continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Replace compressor Air in system Recover refrigerant evacuate system and recharge Outdoor coil dir...

Page 26: ...at PL6 10 white wire If 24 vac is not present replace economizer control board Incorrect SAT wiring or inoperative SAT 1 After verifying that the OAT and EC settings and the economizer control board wir ing are correct check to ensure that the 24 vac terminal of the SAT has 24 vac white wire If OAT EC and control board are functioning and wired properly and no 24 vac exists check wiring see unit l...

Page 27: ......

Page 28: ...TACT REFRIGERANT TUBING OR SHARP EDGES CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS CHECK THAT RETURN INDOOR AIR FILTERS ARE CLEAN AND IN PLACE VERIFY THAT UNIT INSTALLATION IS LEVEL WITHIN THE TOLERANCES LISTED IN INTALLATION INSTRUCTIONS CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION IN...

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