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Carrier 50TFQ008-012, Installation, Start-Up And Service Instructions Manual

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Carrier 50TFQ008-012 Installation, Start-Up And Service Instructions Manual Download Page 16

16

TB - 1

R

Y1

Y2

W1

W2

G

C

X

1

2

3

4

5

6

7

8

TB - 3

1

2

3

4

5

6

7

8

TB - 2

1

2

3

4

5

6

7

8

J6

ANAL

O

G

J5

0-2

0m

A

IN

J4

DISCRE

T

E

J1

PWR

J2

COMMS

J9

0-20 mA

J8

Relays

HK50AA039

BRN

BRN

WHT

WHT

RED

PNK

PNK

ORN

ORN

ORN

ORN

GRA

GRA

ORN

RED

J7

PP/MP

WHT

BLK

RED

RED

PNK

WHT

BLK

PNK

WHT

BLU

ORN

YEL

GRN

BRN

BRN

RED

RED

BRN

BRN

BLK

BLK

BRN

BRN

BLU

BLU

1

2

3

4

5

6

7

8

9

10

11

12

1

2

3

4

5

6

7

8

9

10

11

12

PNK

PNK

VIO

VIO

GRA

ORN

PNK

PNK

GRA

GRA

GRA

SAT

BRN

ORN

BLK

RED

Space Temp./ Set

Point Adjustment

Indoor Air

Quality Sensor

OAT

PNK

VIO

YEL

YEL

BLU

BLU

Economi$er2

4 - 20mA

BLK

RED

WHT

PremierLink

GRN

YEL

BLU

BLU

BLU

Outdoor Air

Quality Sensor

Power Exhaust/Energy Recycler

CCN

Comm.

RMTOCC

SFS

CMPSAFE

FSD

RTU Terminal

Board

TR

TR1

SR

2

3

+

+

S

RED

BRN

BLK

RED

GRAY

GRAY

OUTDOOR AIR

ENTHALPY SENSOR

RETURN AIR

ENTHALPY

SENSOR

PREMIERLINK
CONTROL

PREMIERLINK
COVER

HINGED
DOOR
PANEL

LEGEND

COMMS —

Communications

OAT

—

Outdoor Air Temperature Sensor

PWR

—

Power

SAT

—

Supply Air Temperature Sensor

Fig. 16 — Typical PremierLink Controls Wiring

Fig. 15B — PremierLink™ Controller (Installed)

Summary of Contents for 50TFQ008-012

Page 1: ...cautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguisher available for all brazing operations INSTALLATION Unit is shipped in the vertical configuration To convert to horizontal configuration remove side duct opening covers Us ing the same screws install covers on vertical duct openings with the insulati...

Page 2: ...2 Fig 1 Roof Curb Details ...

Page 3: ...ed plug from the bottom connec tion to the end connection The center drain plug looks like a star connection but can be removed with a 1 2 in socket drive exten sion See Fig 3 The piping for the condensate drain and external trap can be completed after the unit is in place All units must have an external trap for condensate drain age Install a trap at least 4 in deep and protect against freeze up ...

Page 4: ...gging straps from damaging unit 3 Unit weights do not include economizer See Table 1 for economizer weights All panels must be in place when rigging Unit is not designed for handling by a fork truck Damage to unit may result Fig 5 Rigging Details 50TFQ WEIGHT A B C Lb Kg in mm in mm in mm 008 940 426 77 42 1966 5 41 5 1054 42 12 1070 009 965 438 77 42 1966 5 41 5 1054 42 12 1070 012 1015 460 77 42...

Page 5: ...725 Fan Rpm Range Std 590 840 685 935 685 935 Alt 685 935 835 1085 High Static 860 1080 860 1080 830 1130 Motor Bearing Type Ball Ball Ball Maximum Allowable Rpm 2100 2100 2100 Motor Pulley Pitch Diameter Min Max in Std 2 4 3 4 2 8 3 8 2 8 3 8 Alt 2 8 3 8 3 4 4 4 High Static 4 0 5 0 4 0 5 0 2 8 3 8 Nominal Motor Shaft Diameter in Std 5 8 5 8 5 8 Alt 5 8 7 8 High Static 7 8 7 8 7 8 Fan Pulley Pitch...

Page 6: ...6 Fig 6 Base Unit Dimensions ...

Page 7: ... and Accessory Installation Instructions During operation voltage to compressor terminals must be within range indicated on unit nameplate see Tables 3A and 3B On 3 phase units voltages between phases must be bal anced within 2 and the current within 10 Use the formula shown in Tables 3A and 3B Note 2 on page 11 to determine the percentage of voltage imbalance Operation on improper line voltage or...

Page 8: ...6 5 25 6 27 8 30 4 33 0 38 4 41 7 45 9 50 0 013 014 015 014 and 016 013 and 015 011 014 014 016 016 575 3 phase 17 0 34 0 51 0 018 019 018 and 019 011 014 016 50TFQ UNIT SIZE NOMINAL V PH Hz IFM TYPE VOLTAGE RANGE COMPRESSOR each OFM FLA IFM FLA ELECTRIC HEAT POWER SUPPLY DISCONNECT SIZE Min Max RLA LRA Nominal kW FLA MCA MOCP FLA LRA 008 71 2 Tons 208 230 3 60 STD 187 254 13 4 91 0 1 4 5 8 38 8 3...

Page 9: ... 4 21 7 25 0 74 4 78 6 80 80 74 78 317 320 12 0 16 0 33 3 38 5 88 9 95 4 90 100 88 94 328 334 24 0 32 0 66 6 77 0 130 6 143 6 150 150 126 138 362 372 31 8 42 4 88 3 102 0 157 7 174 8 175 175 151 167 383 397 37 6 50 0 104 4 120 3 177 8 167 6 200 175 170 188 399 415 ALT 187 254 17 2 124 0 1 4 7 5 49 0 49 0 50 50 51 51 314 314 7 8 10 4 21 7 25 0 76 1 80 8 80 90 76 80 336 389 12 0 16 0 33 3 38 5 90 6 ...

Page 10: ... 39 7 73 1 80 71 171 41 7 50 2 86 2 90 83 182 575 3 60 STD 518 632 5 4 39 0 0 7 2 6 17 1 20 18 99 17 0 17 1 38 5 40 38 116 34 0 34 1 59 7 60 57 133 HIGH STATIC 518 632 5 4 39 0 0 7 4 8 18 9 20 20 116 17 0 17 1 40 2 45 40 133 34 0 34 1 61 5 70 59 150 009 81 2 Tons 208 230 3 60 STD 187 254 16 0 137 0 1 4 5 8 49 4 49 4 50 50 52 52 326 326 7 8 10 4 21 7 25 0 76 5 80 7 80 90 77 81 348 351 12 0 16 0 33 ...

Page 11: ...25 0 80 9 85 1 90 90 82 86 341 344 12 0 16 0 33 3 38 5 95 4 101 9 100 110 95 101 352 357 24 0 32 0 66 6 77 0 137 1 150 1 150 175 134 145 385 396 31 8 42 4 88 3 102 0 164 2 181 3 175 200 158 174 407 421 37 6 50 0 104 4 120 3 184 3 174 1 200 200 177 195 423 439 HIGH STATIC 187 254 17 2 124 0 1 4 15 0 61 3 61 3 70 70 66 66 367 367 7 8 10 4 21 7 25 0 88 4 92 6 90 100 91 94 389 392 12 0 16 0 33 3 38 5 ...

Page 12: ... voltage connector see Fig 8A and 8B NOTE If the unit is mounted on a roof curb and electrical power will be run up thru the bottom use accessory kit number CRBTMPWR002A01 This kit available from your local distributor ensures a watertight seal Refer to the acces sory installation instructions for information on power wiring Refer to Fig 6 for drilling holes in basepan DEFROST BOARD The defrost bo...

Page 13: ... See Fig 12 for hood details Secure the top of the hood with the 6 screws removed in Step 3 See Fig 13 6 Remove and save the 8 screws 4 on each side from the sides of the manual outdoor air damper 7 Align the screw holes on the hood with the screw holes on the side of the manual outdoor air damper See Fig 12 and 13 Secure the hood with the 8 screws from Step 6 8 Adjust the minimum position setting...

Page 14: ...control box through a grommet into the fan section down along the back side of the fan and along the fan deck over to the supply air opening The SAT probe is wire tied to the supply air opening on the horizontal opening end in its shipping position Remove the sensor for installation Re position the sensor for installation Re position the sensor in the flange of the supply air opening or in the sup...

Page 15: ...pens at 67 F closes at 52 F not adjustable Mixed Air Sensor HH97AZ001 PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT and Outdoor Air Temperature Sensor HH79NZ017 Compressor Lockout Sensor 50HJ540570 Opens at 35 F closes at 50 F APPLICATION OUTDOOR AIR TEMPERATURE SENSOR RETURN AIR TEMPERATURE SENSOR OUTDOOR AIR ENTHALPY SENSOR RETURN AIR ENTHALPY SENSOR Dry Bulb Temperature ...

Page 16: ... GRA GRA SAT BRN ORN BLK RED Space Temp Set Point Adjustment Indoor Air Quality Sensor OAT PNK VIO YEL YEL BLU BLU Economi er2 4 20mA BLK RED WHT PremierLink GRN YEL BLU BLU BLU Outdoor Air Quality Sensor Power Exhaust Energy Recycler CCN Comm RMTOCC SFS CMPSAFE FSD RTU Terminal Board TR TR1 SR 2 3 S RED BRN BLK RED GRAY GRAY OUTDOOR AIR ENTHALPY SENSOR RETURN AIR ENTHALPY SENSOR PREMIERLINK CONTR...

Page 17: ...to J4 1 on Premier Link controller and to terminal 2 on enthalpy sensor NOTE If installing in a Carrier rooftop use the two gray wires provided from the control section to the economizer to connect PremierLink controller to terminals 2 and 3 on enthalpy sensor If NOT using Carrier equipment wires may need to be field supplied and installed Return Air Enthalpy Sensor Mount the return air enthalpy s...

Page 18: ...ig 22 3 The indoor coil access panel will be used as the top of the hood Remove the screws along the sides and bottom of the indoor coil access panel See Fig 23 4 Swing out indoor coil access panel and insert the hood sides under the panel hood top Use the screws provided to attach the hood sides to the hood top Use screws pro vided to attach the hood sides to the unit See Fig 24 5 Remove the ship...

Page 19: ... PANEL INDOOR COIL ACCESS PANEL 24 9 16 SCREW HOOD DIVIDER LEFT HOOD SIDE 40 3 8 Fig 24 Outdoor Air Hood Construction 22 1 4 DIVIDER BAROMETRIC RELIEF CLEANABLE ALUMINUM FILTER FILTER HOOD FILTER CLIP OUTSIDE AIR Fig 25 Filter Installation FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD SUPPLIED TIME CLOCK LEGEND DCV Demand Controlled Ventilation IAQ Indoor Air Quality LA Low Ambient Lockout Devic...

Page 20: ...sensor or HH57A077 enthalpy sensor 3 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500 ohm resistor Fig 27 EconoMi er2 with 4 to 20 mA Control Wiring Fig 28 Barometric Flow Capacity Fig 29 Outdoor Air Damper Leakage Fig 30 Return Air Pressure Drop 0 500 1000 1500 2000 2500 0 05 0 15 0 25 STATIC PRESSURE in wg FLOW IN CUBIC FEET PER MINUTE cfm 0 5 10 15 20 25 30 0 13 0 ...

Page 21: ...33ZCASPCO2 is an accessory aspirator box required for duct mounted applications CRCBDIOX005A00 is an accessory that contains both 33ZCSENCO2 and 33ZCASPCO2 accessories Outdoor Dry Bulb Changeover The standard controller is shipped from the factory configured for outdoor dry bulb changeover control The outdoor air and supply air temperature sensors are included as standard For this control mode the...

Page 22: ...conoMi er IV use The controller selects the lower enthalpy air return or outdoor for cooling For example when the outdoor air has a lower enthalpy than the return air the EconoMi er IV opens to bring in outdoor air for free cooling Replace the standard outside air dry bulb temperature sen sor with the accessory enthalpy sensor in the same mounting location See Fig 19 Mount the return air enthalpy ...

Page 23: ...4 75 24 80 27 80 27 85 29 90 32 95 35 100 38 APPROXIMATE DRY BULB TEMPERATURE F C A A B B C C D D R E L A T I V E H U M I D I T Y HIGH LIMIT CURVE TR1 24 Vac COM TR 24 Vac HOT 1 2 3 4 5 EF EF1 _ P1 T1 P T N EXH 2V 10V EXH Set Set 2V 10V 2V 10V DCV DCV Free Cool B C A D SO SR SR SO AQ1 AQ DCV Min Pos Open Max N1 0 1000 2000 3000 4000 5000 6000 2 3 4 5 6 7 8 800 ppm 900 ppm 1000 ppm 1100 ppm RANGE C...

Page 24: ...2 cool stage 2 W1 heat stage 1 W2 heat stage 2 and G fan The EconoMi er IV control does not support space temperature sensors Connections are made at the thermostat terminal con nection board located in the main control box Occupancy Control The factory default configuration for the EconoMi er IV control is occupied mode Occupied status is provided by the black jumper from terminal TR to terminal ...

Page 25: ...e to re move the humidity loads for most commercial applications If normal rooftop heating and cooling operation is not ade quate for the outdoor humidity level an energy recovery unit and or a dehumidification option should be considered Step 7 Adjust Indoor Fan Speed Adjust the indoor fan speed to meet jobsite conditions For units with electric heat required minimum cfm is 2250 for 50TFQ008 2550...

Page 26: ... and electrical testing on these units ensures that the full horsepower range of the motors can be utilized with confidence Using fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure Unit warranty will not be affected UNIT 50TFQ INDOOR FAN MOTOR UNIT VOLTAGE MAXIMUM ACCEPTABLE CONTINUOUS BHP MAXIMUM ACCEPTABLE OPERATING WATTS M...

Page 27: ...Q MOTOR PULLEY TURNS OPEN 0 1 2 1 11 2 2 21 2 3 31 2 4 41 2 5 51 2 6 008 840 815 790 765 740 715 690 665 635 615 590 008 935 910 885 860 835 810 785 760 735 710 685 008 1080 1025 1007 988 970 952 933 915 897 878 860 009 935 910 885 860 835 810 785 760 735 710 685 009 1080 1025 1007 988 970 952 933 915 897 878 860 012 935 910 885 860 835 810 785 760 735 710 685 012 1085 1060 1035 1010 985 960 935 9...

Page 28: ...839 1 87 1742 2900 613 1 09 1020 681 1 31 1220 743 1 53 1425 799 1 75 1636 851 1 99 1855 3000 629 1 20 1115 696 1 42 1321 756 1 64 1532 812 1 88 1749 863 2 12 1973 3100 646 1 30 1217 711 1 53 1428 770 1 76 1645 825 2 00 1869 875 2 25 2098 3200 662 1 42 1324 726 1 65 1542 784 1 89 1765 838 2 14 1994 888 2 39 2229 3300 679 1 54 1438 741 1 78 1663 798 2 03 1892 851 2 28 2126 3400 695 1 67 1558 756 1 ...

Page 29: ...839 1 87 1742 2900 613 1 09 1020 681 1 31 1220 743 1 53 1425 799 1 75 1636 851 1 99 1855 3000 629 1 20 1115 696 1 42 1321 756 1 64 1532 812 1 88 1749 863 2 12 1973 3100 646 1 30 1217 711 1 53 1428 770 1 76 1645 825 2 00 1869 875 2 25 2098 3200 662 1 42 1324 726 1 65 1542 784 1 89 1765 838 2 14 1994 888 2 39 2229 3300 679 1 54 1438 741 1 78 1663 798 2 03 1892 851 2 28 2126 3400 695 1 67 1558 756 1 ...

Page 30: ...2 43 2266 913 2 69 2512 3500 712 1 81 1686 772 2 06 1923 827 2 32 2165 878 2 59 2412 926 2 86 2664 3600 729 1 95 1820 787 2 21 2065 841 2 48 2312 892 2 75 2565 940 3 03 2823 3700 746 2 10 1962 803 2 37 2213 856 2 65 2467 906 2 92 2726 953 3 21 2990 3750 754 2 18 2036 811 2 46 2290 864 2 73 2548 913 3 01 2809 960 3 30 3076 AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts...

Page 31: ...75 1636 851 1 99 1855 3000 629 1 20 1115 696 1 42 1321 756 1 64 1532 812 1 88 1749 863 2 12 1973 3100 646 1 30 1217 711 1 53 1428 770 1 76 1645 825 2 00 1869 875 2 25 2098 3200 662 1 42 1324 726 1 65 1542 784 1 89 1765 838 2 14 1994 888 2 39 2229 3300 679 1 54 1438 741 1 78 1663 798 2 03 1892 851 2 28 2126 3400 695 1 67 1558 756 1 92 1790 812 2 17 2025 3500 712 1 81 1686 772 2 06 1923 827 2 32 216...

Page 32: ...2 803 2 37 2213 856 2 65 2467 906 2 92 2726 953 3 21 2990 3750 754 2 18 2036 811 2 46 2290 864 2 73 2548 913 3 01 2809 960 3 30 3076 3800 763 2 26 2112 819 2 54 2369 871 2 82 2630 920 3 10 2895 966 3 39 3164 3900 780 2 43 2269 835 2 72 2533 886 3 00 2800 934 3 29 3070 980 3 59 3346 4000 797 2 61 2434 851 2 90 2705 901 3 19 2978 949 3 49 3255 4100 814 2 80 2607 867 3 09 2884 916 3 39 3164 963 3 70 ...

Page 33: ... 792 1 69 1572 840 1 88 1758 886 2 08 1943 4000 697 1 37 1281 753 1 58 1474 804 1 79 1666 852 1 99 1857 897 2 20 2048 4100 712 1 47 1370 766 1 68 1567 817 1 89 1764 864 2 10 1960 909 2 31 2155 4200 726 1 57 1462 780 1 79 1665 830 2 00 1866 876 2 22 2067 4300 741 1 67 1559 794 1 89 1767 843 2 12 1973 889 2 34 2179 4400 755 1 78 1660 807 2 01 1873 856 2 23 2084 4500 770 1 89 1766 821 2 13 1984 869 2...

Page 34: ... 2 22 2067 920 2 43 2268 4300 741 1 67 1559 794 1 89 1767 843 2 12 1973 889 2 34 2179 932 2 56 2384 4400 755 1 78 1660 807 2 01 1873 856 2 23 2084 901 2 46 2295 944 2 69 2505 4500 770 1 89 1766 821 2 13 1984 869 2 36 2200 914 2 59 2415 956 2 82 2630 4600 785 2 01 1876 835 2 25 2099 882 2 49 2320 926 2 72 2541 4700 800 2 14 1991 849 2 38 2219 895 2 62 2445 939 2 86 2670 4800 815 2 26 2111 863 2 51 ...

Page 35: ... 2 76 2575 952 3 01 2805 993 3 25 3034 4900 829 2 40 2235 877 2 65 2473 922 2 91 2709 965 3 16 2944 1005 3 41 3178 5000 844 2 54 2365 891 2 80 2608 936 3 06 2849 978 3 31 3089 1018 3 57 3328 AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 3000 836 1 42 1322 881 1 57 1467 923 1 73 1613 963 1 89 1761 1001 2 05 1909 ...

Page 36: ...99 922 637 1 22 1137 705 1 45 1351 766 1 68 1568 821 1 92 1789 3100 570 1 07 1002 648 1 31 1224 716 1 55 1445 776 1 79 1669 831 2 03 1896 3200 582 1 17 1087 660 1 41 1317 727 1 66 1545 786 1 90 1774 841 2 15 2008 3300 595 1 26 1177 671 1 52 1414 738 1 77 1649 797 2 02 1885 851 2 28 2125 3400 608 1 36 1271 683 1 63 1517 749 1 89 1759 807 2 15 2002 3500 622 1 47 1372 695 1 74 1625 760 2 01 1874 818 ...

Page 37: ...99 922 637 1 22 1137 705 1 45 1351 766 1 68 1568 821 1 92 1789 3100 570 1 07 1002 648 1 31 1224 716 1 55 1445 776 1 79 1669 831 2 03 1896 3200 582 1 17 1087 660 1 41 1317 727 1 66 1545 786 1 90 1774 841 2 15 2008 3300 595 1 26 1177 671 1 52 1414 738 1 77 1649 797 2 02 1885 851 2 28 2125 3400 608 1 36 1271 683 1 63 1517 749 1 89 1759 807 2 15 2002 3500 622 1 47 1372 695 1 74 1625 760 2 01 1874 818 ...

Page 38: ...25 760 2 01 1874 818 2 28 2124 871 2 55 2376 3600 635 1 58 1477 707 1 86 1738 771 2 14 1995 829 2 41 2252 881 2 69 2510 3700 648 1 70 1588 720 1 99 1857 783 2 27 2121 839 2 56 2385 892 2 84 2650 3750 655 1 77 1646 726 2 06 1918 788 2 34 2187 845 2 63 2454 897 2 92 2722 AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Wat...

Page 39: ...1 31 1224 716 1 55 1445 776 1 79 1669 831 2 03 1896 3200 582 1 17 1087 660 1 41 1317 727 1 66 1545 786 1 90 1774 841 2 15 2008 3300 595 1 26 1177 671 1 52 1414 738 1 77 1649 797 2 02 1885 851 2 28 2125 3400 608 1 36 1271 683 1 63 1517 749 1 89 1759 807 2 15 2002 3500 622 1 47 1372 695 1 74 1625 760 2 01 1874 818 2 28 2124 3600 635 1 58 1477 707 1 86 1738 771 2 14 1995 3700 648 1 70 1588 720 1 99 1...

Page 40: ...2 63 2454 897 2 92 2722 3800 662 1 83 1705 732 2 13 1982 794 2 42 2253 850 2 71 2524 902 3 00 2796 3900 675 1 96 1828 744 2 26 2112 806 2 56 2392 861 2 86 2669 913 3 16 2948 4000 689 2 10 1957 757 2 41 2249 817 2 72 2536 873 3 02 2820 924 3 33 3106 4100 702 2 24 2092 769 2 57 2392 829 2 88 2686 884 3 19 2978 935 3 51 3271 4200 716 2 40 2234 782 2 73 2541 841 3 05 2843 895 3 37 3143 945 3 69 3442 4...

Page 41: ...06 812 1 82 1695 860 2 03 1890 4100 668 1 31 1223 722 1 51 1405 773 1 71 1593 822 1 92 1786 870 2 13 1984 4200 682 1 40 1305 734 1 60 1492 784 1 80 1683 833 2 02 1880 880 2 23 2082 4300 696 1 49 1392 747 1 70 1582 796 1 91 1777 844 2 12 1979 890 2 34 2184 4400 710 1 59 1482 760 1 80 1677 808 2 01 1876 855 2 23 2081 4500 723 1 69 1577 773 1 90 1775 820 2 12 1978 866 2 35 2187 4600 737 1 80 1675 785...

Page 42: ... 844 2 12 1979 890 2 34 2184 4400 710 1 59 1482 760 1 80 1677 808 2 01 1876 855 2 23 2081 900 2 46 2290 4500 723 1 69 1577 773 1 90 1775 820 2 12 1978 866 2 35 2187 910 2 57 2400 4600 737 1 80 1675 785 2 01 1877 832 2 24 2085 877 2 46 2297 921 2 70 2514 4700 751 1 91 1778 798 2 13 1984 844 2 35 2195 889 2 59 2412 932 2 82 2633 4800 765 2 02 1885 812 2 25 2095 856 2 48 2310 900 2 71 2531 4900 779 2...

Page 43: ...12 1979 890 2 34 2184 4400 710 1 59 1482 760 1 80 1677 808 2 01 1876 855 2 23 2081 900 2 46 2290 4500 723 1 69 1577 773 1 90 1775 820 2 12 1978 866 2 35 2187 910 2 57 2400 4600 737 1 80 1675 785 2 01 1877 832 2 24 2085 877 2 46 2297 921 2 70 2514 4700 751 1 91 1778 798 2 13 1984 844 2 35 2195 889 2 59 2412 932 2 82 2633 4800 765 2 02 1885 812 2 25 2095 856 2 48 2310 900 2 71 2531 942 2 95 2756 490...

Page 44: ... compressor size 012 only is rotating in the proper direction To determine whether or not the compressor is rotating in the proper direction 1 Connect service gages to the suction and discharge pres sure 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 p...

Page 45: ...ntain at the minimum open position Below 45 F the dampers will be completely shut As the supply air temperature rises the damp ers will come back open to the minimum open position once the supply air temperature rises to 48 F If optional power exhaust is installed as the outdoor air damper opens and closes the power exhaust fans will be ener gized and deenergized If field installed accessory CO2 s...

Page 46: ...2 The PremierLink control will integrate the compressor stages with the economizer based on similar logic as the three routines listed in the previous section The SASP will float up and down based on the error reduction calculations that com pare space temperature and space set point When outside air temperature conditions require the econo mizer to close for a compressor stage up sequence the eco...

Page 47: ...st results backflush toward the return air section to remove foreign material 5 Flush the condensate pan after completion 6 Reinstall the economizer two position damper and filters 7 Reconnect the wiring 8 Replace the access panels OUTDOOR COILS Inspect the coils monthly Clean condenser coils annually and as required by location and outdoor air conditions Clean 2 row coils as follows 1 Turn off th...

Page 48: ...justment is necessary Refer to Table 1 Refrigerant Charge The amount of refrigerant charge is listed on the unit nameplate also refer to Table 1 Refer to Carrier Refrigerant Service Techniques Manual Refrigerants section Unit panels must be in place when the unit is operating during charging procedure NO CHARGE Use standard evacuating techniques After evacuating the system weigh in the specified a...

Page 49: ...minals TR and TR1 DIFFERENTIAL ENTHALPY To check differential enthalpy 1 Make sure EconoMi er IV preparation procedure has been performed 2 Place 620 ohm resistor across SO and 3 Place 1 2 kilo ohm resistor across SR and The Free Cool LED should be lit 4 Remove 620 ohm resistor across SO and The Free Cool LED should turn off 5 Return EconoMi er IV settings and wiring to normal after completing tro...

Page 50: ... fully closed 8 Return EconoMi er IV settings and wiring to normal after completing troubleshooting SUPPLY AIR INPUT To check supply air input 1 Make sure EconoMi er IV preparation procedure has been performed 2 Set the Enthalpy potentiometer to A The Free Cool LED turns on The actuator should drive to between 20 and 80 open 3 Remove the 5 6 kilo ohm resistor and jumper T to T1 The actuator should...

Page 51: ...M Indoor Fan Motor IFMOVL Indoor Fan Motor Overload Switch LPS Low Pressure Switch LSM Limit Switch Manual Reset MCA Minimum Circuit Amps MTR Motor OFC Outdoor Fan Contactor OFM Outdoor Fan Motor P Plug PL Plug Assembly QT Quadruple Terminal SAT Supply Air Thermostat RVS Reversing Valve Solenoid TRAN Transformer Field Splice Marked Wire Terminal Marked Terminal Unmarked Terminal Block Splice Splic...

Page 52: ... indoor fan heating motor or capacitor Replace Restriction 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 Recove...

Page 53: ...n DCV or fully open supply air signal INPUTS OUTPUTS Demand Control Ventilation DCV Enthalpy Y1 Y2 Compressor N Terminal Outdoor Return Stage 1 Stage 2 Occupied Unoccupied Damper Below set DCV LED Off High Free Cooling LED Off Low On On On On Minimum position Closed On Off On Off Off Off Off Off Low Free Cooling LED On High On On On Off Modulating between min position and full open Modulating betw...

Page 54: ...e protection thermostat 5 48 Heat anticipator settings 12 13 High flow valves 44 High pressure switch 5 48 Horizontal units 3 Indoor air quality 14 22 Indoor coil 5 Cleaning 47 Indoor fan motor 5 Lubrication 48 Motor data 26 Performance 28 43 Pulley adjustment 26 Pulley setting 5 27 Speed 5 Low pressure switch 5 48 Manual outdoor air damper 13 Mounting Compressor 44 Unit 3 Novar controls 13 Operat...

Page 55: ......

Page 56: ...ND TERMINALS FOR TIGHTNESS CHECK THAT RETURN INDOOR AIR FILTERS ARE CLEAN AND IN PLACE VERIFY THAT UNIT INSTALLATION IS LEVEL CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS VERIFY INSTALLATION OF ECONOMIZER HOOD IF EQUIPPED III START UP ELECTRICAL TEMPERATURES PRESSURES COOLING MODE VERIFY T...

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