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27

Table 4 — Evaporator Fan Performance — 50XCW06 Units

              LEGEND

Bhp —

 Brake Horsepower

ESP

 

 External Static Pressure

NOTES:

1. Units are available with several motor hp options. Refer to

Table 1.

2. Static pressure losses for any options or accessories must be

applied to external static pressure before entering the fan per-
formance table.

3. Interpolation is permitted; extrapolation is not.
4. Fan performance is based on 1 in. standard throwaway filter,

unit casing, and wet DX (direct expansion) coil losses at sea
level.

CFM

ESP (in. wg)

0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

0.80

0.90

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

1500

477

0.19

542

0.24

603

0.30

660

0.36

714

0.43

766

0.50

816

0.58

864

0.66

910

0.74

954

0.83

1600

509

0.23

570

0.28

627

0.34

682

0.41

734

0.48

784

0.55

832

0.63

878

0.71

923

0.80

966

0.89

1700

540

0.27

598

0.33

653

0.40

705

0.46

755

0.54

803

0.61

849

0.69

894

0.78

937

0.87

979

0.96

1800

572

0.32

627

0.39

679

0.45

729

0.52

777

0.60

823

0.68

868

0.76

911

0.85

953

0.94

994

1.03

1900

604

0.38

656

0.45

706

0.52

754

0.59

800

0.67

844

0.75

887

0.83

929

0.92

970

1.01

1009

1.11

2000

636

0.44

685

0.51

733

0.58

779

0.66

823

0.74

866

0.83

908

0.91

948

1.01

988

1.10

1026

1.20

2100

668

0.51

715

0.58

760

0.66

804

0.74

847

0.82

888

0.91

929

1.00

968

1.09

1006

1.19

1044

1.29

2200

699

0.59

744

0.66

788

0.74

831

0.83

872

0.91

912

1.00

951

1.09

989

1.19

1026

1.29

1062

1.39

2300

731

0.67

774

0.75

816

0.83

857

0.92

897

1.01

935

1.10

973

1.20

1010

1.30

1046

1.40

1081

1.50

2400

763

0.76

804

0.85

845

0.93

884

1.02

922

1.11

960

1.21

996

1.31

1032

1.41

1067

1.51

1101

1.62

2500

795

0.86

835

0.95

873

1.04

911

1.13

948

1.22

985

1.32

1020

1.42

1055

1.53

1089

1.63

1122

1.74

2600

826

0.97

865

1.06

902

1.15

939

1.25

975

1.35

1010

1.45

1044

1.55

1078

1.66

1111

1.77

1144

1.88

2700

858

1.09

895

1.18

931

1.28

967

1.37

1002

1.47

1036

1.58

1069

1.68

1102

1.79

1134

1.91

2800

890

1.21

926

1.31

961

1.41

995

1.51

1029

1.61

1062

1.72

1094

1.83

1126

1.94

2900

922

1.35

956

1.45

990

1.55

1023

1.65

1056

1.76

1088

1.87

1119

1.98

CFM

ESP (in. wg)

1.00

1.10

1.20

1.30

1.40

1.50

1.60

1.70

1.80

1.90

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

Rpm

Bhp

1500

997

0.92

1039

1.02

1080

1.12

1119

1.22

1158

1.33

1195

1.44

1232

1.55

1268

1.67

1303

1.79

1338

1.92

1600

1008

0.99

1049

1.08

1088

1.18

1127

1.29

1165

1.40

1201

1.51

1237

1.62

1273

1.74

1307

1.86

1341

1.99

1700

1020

1.05

1060

1.15

1098

1.26

1136

1.36

1173

1.47

1209

1.58

1244

1.70

1279

1.82

1313

1.94

1800

1033

1.13

1072

1.23

1110

1.33

1147

1.44

1183

1.55

1218

1.66

1252

1.78

1286

1.90

1900

1048

1.21

1086

1.31

1122

1.42

1158

1.53

1193

1.64

1228

1.75

1262

1.87

1295

1.99

2000

1063

1.30

1100

1.40

1136

1.51

1171

1.62

1205

1.73

1239

1.85

1272

1.97

2100

1080

1.39

1116

1.50

1151

1.61

1185

1.72

1219

1.84

1252

1.95

2200

1098

1.50

1132

1.61

1166

1.72

1200

1.83

1233

1.95

2300

1116

1.61

1150

1.72

1183

1.83

1216

1.95

2400

1135

1.73

1168

1.84

1201

1.96

2500

1155

1.86

1187

1.97

2600

1175

1.99

2700

2800

2900

Содержание Omnizone 50XCW06-24

Страница 1: ...equipment When working on the equipment observe precautions in the literature and on tags stickers and labels attached to the equip ment Follow all safety codes Wear safety glasses and work gloves WARNING Electrical shock can cause personal injury and death Shut off all power to this equipment during installation There may be more than one disconnect switch Tag all discon nect locations to alert o...

Страница 2: ...g the unit Step 1 Complete Pre Installation Checks Examine unit for damage incurred during ship ment File claim immediately with transit company if damage is found Check the shipment for completeness Verify that the nameplate electrical requirements match the available power supply DO NOT place the unit in a horizontal position that would allow oil to drain into the top of the compressor Do not al...

Страница 3: ...ON EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 10 8 4 2 12 5 13 8 8 5 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 10 8 4 2 12 5 13 8 8 5 13 6 2 125 a50 8668 ...

Страница 4: ...N EVAP SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 25 6 10 1 12 5 13 8 8 5 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 25 6 10 1 12 5 13 8 8 5 13 6 2 125 a50 8669 ...

Страница 5: ... ACCESS PANEL NOTE Dimensions are in inches UNIT 50XCW WIDTH HEIGHT DEPTH COND SECTION EVAP SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 23 9 8 1 12 5 13 8 8 5 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7...

Страница 6: ...ION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 10 8 4 2 12 5 13 8 2 7 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 10 8 4 2 12 5 13 8 2 7 13 6 2 125 a50 8670 ...

Страница 7: ...UCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 25 6 10 1 12 5 13 8 2 7 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 25 6 10 1 12 5 13 8 2 7 13 6 2 125 a50 8671 Fig 6 Dimensions 50XCW12 14 Rear Return Horizontal Discharge with Head Pressure Control ...

Страница 8: ...NTROL BOX NOTE Dimensions are in inches UNIT 50XCW WIDTH HEIGHT DEPTH COND SECTION EVAP SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q R 12 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 23 9 8 1 12 5 13 8 2 7 13 6 2 125 14 68 0 64 0 31 2 28 0 35 5 61 1 31 8 29 4 5 5 17 7 22 7 23 ...

Страница 9: ...P SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 10 7 4 2 12 5 13 8 8 5 13 5 11 7 2 125 24 88 0 70 8 31 2 31 2 39 5 81 5 35 8 33 3 5 5 17 8 22 8 10 7 4 2 14 9 13 8 8 6 8 3 13 2 2 125 a50 8672 Fig 8 Dimensions 50XCW16 24 Rear Return Vertical Discharge ...

Страница 10: ...P SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 25 6 10 1 12 5 13 8 8 5 13 5 11 7 2 125 24 88 0 70 8 31 2 31 2 39 5 81 5 35 8 33 3 5 5 17 8 22 8 25 6 10 1 14 9 13 8 8 6 8 3 13 2 2 125 a50 8673 ...

Страница 11: ...ESS PANEL CONTROL BOX TOP VIEW INDOOR SUPPLY AIR FLOW FRONT VIEW CONDENSER ACCESS PANEL NOTE Dimensions are in inches UNIT 50XCW WIDTH HEIGHT DEPTH COND SECTION EVAP SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 24 0 8 9 12 5 ...

Страница 12: ... SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 10 7 4 2 12 5 13 8 2 6 13 5 11 7 2 125 24 88 0 70 8 31 2 31 2 39 5 81 5 35 8 33 3 5 5 17 8 22 8 10 7 4 2 14 9 13 8 2 6 8 3 13 2 2 125 a50 8674 Fig 11 Dimensions 50XCW16 24 Rear Return Horizontal Discharge ...

Страница 13: ...SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 25 6 10 1 12 5 13 8 2 6 13 5 11 7 2 125 24 88 0 70 8 31 2 31 2 39 5 81 5 35 8 33 3 5 5 17 8 22 8 25 6 10 1 14 9 13 8 2 6 8 3 13 2 2 125 a50 8675 Fig 12 Dimensions 50XCW16 24 Rear Return Horizontal Discharge with Head Pressure Control ...

Страница 14: ... RIGHT VIEW TOP VIEW EVAP ACCESS PANEL CONDENSER ACCESS PANEL FRONT VIEW CONTROL BOX NOTE Dimensions are in inches UNIT 50XCW WIDTH HEIGHT DEPTH COND SECTION EVAP SECTION EVAPORATOR RETURN DUCT WATER RETURN CONN WATER SUPPLY CONN EVAP SUPPLY DUCT Blower Opening SUPPLY RETURN DIAMETER OD A B C D E F G H I J K L M N O P Q S R 16 88 0 66 7 31 2 31 2 35 5 81 0 31 8 33 2 5 5 17 8 22 8 24 0 8 9 12 5 13 ...

Страница 15: ...tor Pulley Type 1VL44 1VP34 1VP34 1VP34 1VP34 1VP50 Std Hp 1 0 1 0 1 0 1 5 1 5 3 Hp Range 1 2 1 2 1 3 1 5 5 1 5 5 3 7 5 Fan Shaft Size in 0 75 1 1 1 1 1875 1 1875 Motor Shaft Size in 0 875 0 875 0 875 0 875 0 875 1 125 Center Distance in Vertical 15 3 15 3 18 1 18 1 18 1 21 3 Center Distance in Horizontal N A N A 15 5 13 15 7 18 1 EVAPORATOR COIL 3 8 in OD Enhanced Copper Tube Aluminum Fins Quanti...

Страница 16: ...n system If the unit will be installed in a new installation the duct system should be designed in accordance with the System De sign Manual Part 2 and with ASHRAE procedures for duct sizing If the unit will be connected to an existing duct system check that the existing duct system has the capacity to handle the required airflow for the unit application at an acceptable system static pressure If ...

Страница 17: ...er must be within the minimum and maximum shown in Tables 2 and 3 and phases must be balanced within 2 Contact local power company for line voltage corrections Never operate a motor where a phase imbalance in supply voltage is greater than 2 UNBALANCED 3 PHASE SUPPLY VOLTAGE Use the following formula to determine the percentage of voltage imbalance Percent Voltage Imbalance Example Supply voltage ...

Страница 18: ...REEZE PROTECTION THERMOSTAT A standard freeze protection thermostat is factory installed Table 2 Electrical Data LEGEND NOTES 1 In compliance with NEC requirements for multimotor and com bination load equipment NEC Articles 430 and 440 the over current protective device for the unit shall be fuse or HACR circuit breaker Canadian units may be fuse or circuit breaker 2 Wire sizing amps are a sum of ...

Страница 19: ... 253 3 2 3 2 460 3 60 414 506 1 6 575 3 60 518 632 1 1 E 1 50 208 230 3 60 187 253 4 6 4 8 460 3 60 414 506 2 4 575 3 60 518 632 1 6 F 2 00 208 230 3 60 187 253 6 0 5 8 460 3 60 414 506 2 9 575 3 60 518 632 2 1 G 3 00 208 230 3 60 187 253 9 2 8 6 460 3 60 414 506 4 3 575 3 60 518 632 3 4 H 5 00 208 230 3 60 187 253 14 5 13 6 460 3 60 414 506 6 8 575 3 60 518 632 5 4 J 7 50 208 230 3 60 187 253 21 ...

Страница 20: ...osition control valves modulating control valves or three way control valves may be used to control water flow Select the valve based on the control valve manu facturer s recommendations for size and temperature rat ing Select the control valve based on pressure drop equal to the coil 8 Pipe sizes should be selected based on the head pressure available from the pump It is recommended that the ve l...

Страница 21: ...isconnect FRZ Freeze Protection GND Ground HPS High Pressure Switch HR Heater Relay IFC Indoor Fan Contactor IFM Indoor Fan Motor IFR Indoor Fan Relay LLT Low Limit Thermostat LPS Low Pressure Switch Fig 20 Typical Heating Coil Control Wiring ON OFF OFC Outdoor Fan Contactor OFM Outdoor Fan Motor OFR Outdoor Fan Relay SAT Supply Air Thermistor TB Terminal Block TRAN Transformer Terminal Block Conn...

Страница 22: ...mostatic traps should only be used for air vent ing Bucket traps are recommended for use with ON OFF control 7 Locate the trap at least 12 in below the coil return 8 If a modulating control valve is used be sure to size the valve properly and do not oversize STEAM COIL CONTROLS Several methods of control are possible depending on the heating medium to be used loca tion and type of thermostatic con...

Страница 23: ...er Relay IFC Indoor Fan Contactor IFM Indoor Fan Motor IFR Indoor Fan Relay LLT Low Limit Thermostat Fig 23 Typical Steam Coil Control Wiring ON OFF LPS Low Pressure Switch OFC Outdoor Fan Contactor OFM Outdoor Fan Motor OFR Outdoor Fan Relay TB Terminal Block TRAN Transformer Terminal Block Connection Marked Terminal Unmarked Terminal Factory Wiring Field Wiring A50 8706 ...

Страница 24: ...heave on the shaft to pre vent bearing damage do not use excessive force i e a hammer Place sheaves for minimum overhang see Fig 25 Each factory assembled fan shaft and drive sheave as sembly is precision aligned and balanced If excessive unit vibration occurs after field replacement of sheaves the unit should be rebalanced To change the drive ratio reselect and replace the motor sheave not the fa...

Страница 25: ...final speed adjustment V BELTS When installing or replacing belts always use a complete set of new belts Mixing old and new belts will result in the premature wear or breakage of the newer belts Refer to label on inside of fan access door for informa tion on factory supplied drive 1 Always adjust the motor position so that V belts can be installed without stretching over grooves Forcing belts can ...

Страница 26: ...ting below room temperature Com pressor will start If compressor suction pressure does not drop and discharge pressure does not rise to normal levels at start up reverse any 2 compressor power leads and re store power to ensure compressor was not wired to run in reverse direction 6 Set thermostat as desired Compressor Rotation To determine whether or not compressor is rotating in the proper direct...

Страница 27: ... 29 1062 1 39 2300 731 0 67 774 0 75 816 0 83 857 0 92 897 1 01 935 1 10 973 1 20 1010 1 30 1046 1 40 1081 1 50 2400 763 0 76 804 0 85 845 0 93 884 1 02 922 1 11 960 1 21 996 1 31 1032 1 41 1067 1 51 1101 1 62 2500 795 0 86 835 0 95 873 1 04 911 1 13 948 1 22 985 1 32 1020 1 42 1055 1 53 1089 1 63 1122 1 74 2600 826 0 97 865 1 06 902 1 15 939 1 25 975 1 35 1010 1 45 1044 1 55 1078 1 66 1111 1 77 1...

Страница 28: ...Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2200 497 0 27 581 0 39 655 0 52 722 0 66 782 0 80 839 0 95 892 1 11 941 1 28 989 1 45 1034 1 62 2400 542 0 35 621 0 48 690 0 62 753 0 77 812 0 92 866 1 08 917 1 25 966 1 42 1012 1 60 1056 1 78 2600 587 0 45 660 0 59 726 0 74 787 0 89 843 1 06 895 1 22 945 1 40 992 1 58 1037 1 76 1080 1 95 2800 632 0 56 701 0 71 763 0 87 821 1 04 875 1 21 925 1 38 974 1 57 1019 1 75 ...

Страница 29: ... 806 1 38 852 1 56 897 1 76 4000 508 0 63 547 0 71 588 0 81 632 0 92 677 1 04 722 1 17 768 1 31 814 1 47 859 1 65 903 1 85 4200 533 0 73 570 0 82 609 0 92 650 1 03 693 1 15 736 1 28 780 1 42 823 1 58 867 1 76 910 1 95 4400 559 0 83 594 0 93 631 1 03 670 1 15 710 1 27 751 1 40 792 1 54 834 1 70 876 1 87 917 2 06 4600 584 0 95 618 1 05 653 1 16 690 1 28 728 1 40 767 1 53 806 1 68 846 1 83 886 2 01 9...

Страница 30: ...8 819 2 03 846 2 18 874 2 32 903 2 46 934 2 62 966 2 78 5700 733 1 28 763 1 61 789 1 85 815 2 05 841 2 22 867 2 37 894 2 52 921 2 67 950 2 82 980 2 98 5900 759 1 42 787 1 77 813 2 02 838 2 23 863 2 41 888 2 57 914 2 73 940 2 88 968 3 03 996 3 19 6100 784 1 57 812 1 93 838 2 20 862 2 42 886 2 62 910 2 79 934 2 95 960 3 11 986 3 27 1013 3 43 CFM ESP in wg 1 00 1 10 1 20 1 30 1 40 1 50 1 60 1 70 1 80...

Страница 31: ... 673 1 90 718 2 13 761 2 37 802 2 61 841 2 86 879 3 11 916 3 37 951 3 63 6500 598 1 63 647 1 86 693 2 10 737 2 34 778 2 59 818 2 84 857 3 09 894 3 35 929 3 62 964 3 89 6750 621 1 83 668 2 07 713 2 32 755 2 57 796 2 82 835 3 08 872 3 34 909 3 61 944 3 89 978 4 16 7000 644 2 04 689 2 29 733 2 55 774 2 81 814 3 07 852 3 34 888 3 61 924 3 89 958 4 17 992 4 46 7250 667 2 27 711 2 53 753 2 80 793 3 07 8...

Страница 32: ...56 5 38 1091 5 77 8 000 743 2 60 790 2 96 835 3 32 878 3 69 918 4 07 958 4 45 996 4 84 1033 5 23 1068 5 63 1103 6 04 8 300 771 2 90 817 3 27 860 3 65 901 4 03 941 4 42 979 4 82 1017 5 22 1053 5 63 1087 6 04 1121 6 45 8 600 799 3 23 843 3 61 885 4 00 925 4 40 964 4 80 1001 5 21 1038 5 62 1073 6 04 1107 6 47 1140 6 89 8 900 827 3 58 869 3 98 910 4 38 949 4 79 987 5 20 1024 5 62 1059 6 05 1093 6 48 1...

Страница 33: ...rs 3 Press ENTER 4 Select sub group first two digits of the parameters 5 Press SEL 6 Select parameter 7 Press EDIT 8 Select the new value See Table 10 9 Press SAVE 10 Select any other parameters of the group to change and go to Step 7 11 When complete press EXIT 12 Select any other parameter groups to change and go to Step 5 13 When complete Press EXIT 14 Press EXIT until the status menu is visibl...

Страница 34: ...ower supply Lock out power supply and tag disconnect locations Loosen fan mo tor pulley setscrews and slide fan pulley along fan shaft Make angular alignment by loosening motor from mounting bracket see Fig 28 Check alignment with a straightedge Belt Tension Adjustment Shut off unit power sup ply Lock out power supply and tag disconnect locations Loos en fan motor mounting plate bolts Do not loose...

Страница 35: ... Full Load Amps Fig 30 Fan Shaft Bearings a50 2178tf Fig 31 Motor Starter Setting a50 8659 1 9 1 6 1 3 M M O A O A RESET O CLASS 20 TEST OVERLOAD SETPOINT WHEEL MOTOR OVERLOAD RESET WHEEL HP 208 230 V 460 V 575 V Part Number FLA Part Number FLA Part Number FLA 208V 230V 0 50 99MR0127BA020103 1 8 2 2 99MR0127BA020103 1 1 99MR0107BA020103 0 9 0 75 99MR0227BA020103 2 5 2 6 99MR0227BA020103 1 3 99MR02...

Страница 36: ...ed over by the gases Warm solution acts faster but cold solution is just as ef fective if applied for a longer period GRAVITY FLOW METHOD Fig 32 Do not add solu tion faster than vent can exhaust the generated gases When condenser is full allow solution to remain overnight then drain condenser and flush with clean water Follow acid manufactur er s instructions FORCED CIRCULATION METHOD Fig 33 Fully...

Страница 37: ...ated condensing temperature 5 Read liquid line temperature on thermometer then sub tract from saturated condensing temperature The differ ence equals subcooling temperature 6 Compare the subcooling temperature with the normal temperature listed in Table 13 If the measured liquid line temperature does not agree with the required liquid line temperature ADD refrigerant to raise the temperature or RE...

Страница 38: ...eck TXV Check temperature in suction discharge line Unit is noisy Compressor noise Check TXV and replace if necessary Check internal noise Tube vibration or condenser water problem Check and correct Unit panel or part vibrating Check and tighten appropriate part Unit runs continuously but has low capacity Unit is undersized Check heat load calculation Low refrigerant or noncondensing gas present C...

Страница 39: ...k building load Low refrigerant Check for and repair leaks and add refrigerant as necessary Low airflow in evaporator Clean filter Remove scale Check for blockage in ducts Check fan rotation Check motor operation Check belts Low refrigerant flow in evaporator Check for obstruction in filter drier Check for obstruction in TXV Check super heating Check position of TXV bulb and equalizer Suction pres...

Страница 40: ...igh Pressure Switch IFC Indoor Fan Contactor IFM Indoor Fan Motor IFR Indoor Fan Relay LPS Low Pressure Switch TB Terminal Block TRAN Transformer Terminal Block Connection Marked Terminal Unmarked Terminal Splice Factory Wiring Field Power Wiring Fig 34 Typical Wiring Schematic 50XCW12 24 208 230 3 60 Units Shown NOTES 1 Fan motors are inherently thermally protected 2 Three phase motors are protec...

Страница 41: ...1 T2 BIN COM SEN Jump1 P5 P4 Jump2 TR1 5 1 2 3 4 W7212 24V Com EF1 TR 24V Hot EF N AQ SO SO P T SR N1 P1 T1 SR AQ1 602 BLU 605 BLU ECON 6 7 11 10 12 601 RED 602 BLU 603 YEL 604 BRN 608 PNK 608 PNK 604 BRN 603 YEL 601 RED ECON VALVE CHANGEOVER EWT RED 24V H BLK COM WHT Signal SAT 620 622 BLU 628 PNK 576 ORN 576 ORN 577 BLK 577 BLK 575 BRN 573 RED 825 5 W 1 5 1k 25W 1 578 GRA 579 GRA 1 2 3 5 4 8 569...

Страница 42: ...ht to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500194 01 Printed in U S A Form 50XCW 7SI Pg 42 718 1 18 Replaces 50XCW 6SI Carrier Corporation 2018 ...

Страница 43: ...IT SIZED AND INSTALLED PROPERLY Y N _______ HAVE EVAPORATOR FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENTAND DO THE FAN BELTS HAVE PROPER TENSION Y N _______ HAS CORRECT FAN ROTATION OR EVAPORATOR BEEN CONFIRMED Y N _______ VERIFY CONDENSATE DRAIN HAS BEEN INSTALLED PER INSTRUCTIONS Y N _______ HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE Y N _______ ARE PROPER AIR FILTE...

Страница 44: ...G TIME RECORD THE FOLLOWING MEASUREMENTS COMPRESSOR AMPS NOTES _______________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _________________________________________________________...

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