Carrier 30GT080-420 Скачать руководство пользователя страница 46 | Manualshive

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A. QUICK TEST STEPS 1 - 15: UNIT CONFIGURATION
— Microprocessor in unit control system is programmed by
2 switch assemblies located on processor board (Fig. 19).
Configuration header is factory set and cannot be changed in
the field. The DIP switch assembly contains 8 microswitches
that must be set in accordance with various options and
accessories selected. As shipped from factory, all DIP switches
except those controlling pull-down option (switch no. 3) and
compressor unloaders (switch no. 7 on 30GT080-330, and
360B 50 Hz units) are in OFF position. Switch no. 8 is in
OFF position for water units, and ON position for brine
units. All DIP switches should be checked and set to proper
position for options selected during quick test.

The DIP switch assembly, functions, and display codes

are shown in Fig. 19 and in Tables 8 and 9. Refer to Controls
and Troubleshooting literature for details.
B. QUICK TEST STEPS 16 - 30: THERMISTORS AND
SET POINT POTENTIOMETERS — In these steps, micro-
processor checks resistance values of all sensors and set point
potentiometers to ensure they are functional and set within
proper range for unit configuration.

Nominal resistance values for all sensors range from 363,000

to 216 ohms. Normal display code for good sensors and

potentiometers is

. Display code

indicates a faulty

potentiometer, thermistor, or wiring. A

display can

also indicate a particular option is not being used, i.e., de-
mand limit not installed.

Tables 8 and 10 show set point potentiometer functions,

locations, and quick test display codes.

C. QUICK TEST STEPS 31 - 42: OUTPUT RELAYS —
These quick test steps allow microprocessor to check output
signals from relay boards in unit control system. In addition,
operation of all condenser fans and compressors is checked
at each step.

Normal display code for steps

through

is

. In steps

through

, when appropriate, each

compressor is started and allowed to run for approxi-

mately 10 seconds. At start-up

appears, followed

by

in a few seconds. At end of 10-second test, code

test, code

returns to display indicating that test

step has been successfully completed. Code

indicated

that compressor protection circuit (CPCS) or control relay
(CR) was tested.

Fan and compressor operating sequence for quick test

steps

through

are shown in Table 8 and Fig. 20.

If quick test steps do not operate as described, a defect

exists in one or more of the following: relay being tested,
electronic control, and/or unit wiring. Refer to Controls and
Troubleshooting literature for additional information.

FAN ARRANGEMENT

FAN

NO.

QUICK TEST

DISPLAY NUMBER*

CONTROLLED BY

30GT080,090,230B,245B

1

3.5.

Compressor No. A1

2

3.9.

Compressor No. B1

3,4

3.1.

First Stage of Condenser Fans

5,6

3.2.

Second Stage of Condenser Fans

30GT100,110,255B-315B

1

3.5.

Compressor No. A1

2

3.9.

Compressor No. B1

3,4

3.1.

First Stage of Condenser Fans

5,6,7,8

3.2.

Second Stage of Condenser Fans

30GT130-210 230A-315, 330A/B-420A/B†

5,7

3.5.

Compressor No. A1

6,8

3.9.

Compressor No. B1

3,4,9,10

3.1.

First Stage of Condenser Fans

1,2,11,12

3.2.

Second Stage of Condenser Fans

* *

*During quick test only.

†Fan numbers 11 and 12 apply only to 190 and 210 and associated modular units (see Table 1).

**Control box.

Fig. 20 — Condenser Fan Sequence

46

«
...
44
45
46
47
48
...
»

Содержание 30GT080-420

Страница 1: ...Step 3 Check Compressor Mounting 27 Step 4 Cooler Fluid and Drain Piping Connections 27 PREPARATION FOR YEAR ROUND OPERATION PREPARATION FOR WINTER SHUTDOWN Step 5 Make Electrical Connections 28 FIEL...

Страница 2: ...30A 315A and 330A B 420A B will have fus ible plugs with 3 8 in SAE Society of Automotive Engi neers U S A flares if required by local codes Table 1 Unit Sizes and Modular Combinations UNIT MODEL 30GT...

Страница 3: ...rs are used a perimeter support channel between the unit and the isolators is recommended 4 Dimensions in are in millimeters 5 Thru the door handles for non fused disconnect op tion on 380 415 v and 4...

Страница 4: ...d for spring iso lator location 3 If spring isolators are used a perimeter support channel between the unit and the isolators is recommended 4 Dimensions in are in millimeters 5 Thru the door handles...

Страница 5: ...ator location 3 If spring isolators are used a perimeter support channel between the unit and the isolators is recommended 4 Dimensions in are in millimeters Fig 3 Dimensions 30GT130 170 230A 270A 330...

Страница 6: ...816 2 Fig 4 Dimensions 30GT190 210 290A 315A 360A 50 Hz 360A B 60 Hz 390A B 420A B NOTES 1 Unit must have clearances for airflow from solid sur faces as follows Top Do not restrict in any way Ends 5 f...

Страница 7: ...NON FUSED DISCONNECT OPTION Fig 5 Location of Optional Non Fused Disconnect 130 210 and 230A 315A 330A B 420A B Units 130 170 230A 270A 330A B 360B 50 Hz Shown 7...

Страница 8: ...50 1730 1680 1660 750 786 764 755 C C 1830 1910 1863 1842 832 868 847 837 090 245B C AL 1833 1864 1724 1714 833 847 784 779 C C 2014 2040 1907 1899 915 927 867 863 100 255B 270B C AL 2222 2222 2133 21...

Страница 9: ...83 433 728 707 754 737 150 230A 255A C AL 420 710 527 379 653 625 794 653 C C 478 768 585 436 285 711 880 740 170 270A 330A B C AL 437 787 605 392 680 740 825 664 C C 495 845 663 450 767 826 912 751 1...

Страница 10: ...436 740 711 888 743 150 230A 255A C AL 430 723 527 379 653 625 831 682 C C 486 781 585 437 740 711 918 769 170 270A 330A B 360B C AL 437 792 612 397 694 760 840 666 C C 495 850 670 454 780 847 927 75...

Страница 11: ...20 000 High Static Fan Speed rpm 1750 1750 1750 1750 1740 1740 1740 1740 1740 No Blades Diameter in 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 No Fans Total kW 6 22 2 6 22 2 8 29 6 8 29 6 1...

Страница 12: ...76 000 100 000 76 000 176 000 High Static Fan Speed rpm 1740 1750 1740 1750 1740 1750 1740 1750 No Blades Diameter in 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 No Fans Total kW 10 37 0 6 22 2 16...

Страница 13: ...000 76 000 196 000 120 000 76 000 196 000 100 000 100 000 200 000 120 000 120 000 240 000 High Static Fan Speed rpm 1740 1750 1740 1750 1740 1740 1740 1740 No Blades Diameter in 12 30 12 30 12 30 12 3...

Страница 14: ...igh Static Fan Speed rpm 1740 1740 1740 1740 No Blades Diameter in 12 30 12 30 12 30 12 30 No Fans Total kW 12 44 4 12 44 4 24 88 8 12 44 4 12 44 4 24 88 8 Total Airflow cfm 120 000 120 000 240 000 12...

Страница 15: ...0 56 630 56 630 High Static Fan Speed r s 29 29 29 29 29 29 29 29 29 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 No Fans Total kW 6 22 2 6 22 2 8 29 6 8 29 6 1...

Страница 16: ...4 47 190 35 864 83 054 High Static Fan Speed r s 29 29 29 29 29 29 29 29 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 No Fans Total kW 10 37 0 6 22 2 16 59 2 10 37 0 6...

Страница 17: ...56 630 35 864 92 494 56 630 35 864 92 494 47 190 47 190 94 380 56 630 56 630 113 260 High Static Fan Speed r s 29 29 29 29 29 29 29 29 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 1...

Страница 18: ...gh Static Fan Speed r s 29 29 29 29 No Blades Diameter mm 12 762 12 762 12 762 12 762 No Fans Total kW 12 44 4 12 44 4 24 88 8 12 44 4 12 44 4 24 88 8 Total Airflow L s 56 630 56 630 113 260 56 630 56...

Страница 19: ...an Speed rpm 1445 1445 1445 1445 1445 1445 1445 1445 1445 No Blades Diameter in 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 No Fans Total kW 6 22 2 6 22 2 8 29 6 8 29 6 10 37 0 10 37 0 10 37...

Страница 20: ...100 000 76 000 176 000 High Static Fan Speed rpm 1445 1445 1445 1445 1445 1445 1445 1750 No Blades Diameter in 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 No Fans Total kW 10 37 0 6 22 2 16 59 2...

Страница 21: ...0 000 220 000 High Static Fan Speed rpm 1445 1445 1445 1445 1445 1445 1445 1445 No Blades Diameter in 12 30 12 30 12 30 12 30 12 30 12 30 12 30 12 30 No Fans Total kW 12 44 4 8 29 6 20 74 0 12 44 4 8...

Страница 22: ...No Blades Diameter in 12 30 12 30 12 30 12 30 No Fans Total kW 12 44 4 12 44 4 24 88 8 12 44 4 12 44 4 24 88 8 Total Airflow cfm 120 000 120 000 240 000 120 000 120 000 240 000 CONDENSER COILS Type Ve...

Страница 23: ...56 630 High Static Fan Speed r s 24 24 24 24 24 24 24 24 24 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 No Fans Total kW 6 22 2 6 22 2 8 29 6 8 29 6 10 37 0 10...

Страница 24: ...864 83 054 47 190 35 864 83 054 High Static Fan Speed r s 24 24 24 24 24 24 24 24 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 No Fans Total kW 10 37 0 6 22 2 16 59 2...

Страница 25: ...94 380 56 630 47 190 103 820 High Static Fan Speed r s 24 24 24 24 24 24 24 24 No Blades Diameter mm 12 762 12 762 12 762 12 762 12 762 12 762 12 762 12 762 No Fans Total kW 12 44 4 8 29 6 20 74 0 12...

Страница 26: ...atic Fan Speed r s 24 24 24 24 No Blades Diameter mm 12 762 12 762 12 762 12 762 No Fans Total kW 12 44 4 12 44 4 24 88 8 12 44 4 12 44 4 24 88 8 Total Airflow L s 56 630 56 630 113 260 56 630 56 630...

Страница 27: ...cing Field supplied shut off valves should also be in stalled to facilitate servicing and flow balancing Locate valves in return and supply cooler fluid lines as close to the chiller as possible Locat...

Страница 28: ...ing should be to the non fused dis connect rather than the terminal blocks 30GT080 110 and 230B 315B Units All field power en ters the unit through the control box at the left end when facing the comp...

Страница 29: ...ing area All units have a single location for power connection one per module on 230 420 units to simplify field power wiring The maximum acceptable wire size for the terminal block is 500 kcmil Copp...

Страница 30: ...onal power supply is re quired If a separate power source is required follow these instructions and disconnect the wires between the control and power terminal blocks For 30GT080 110 and 230B 315B Uni...

Страница 31: ...ided between terminals TB6 3 and TB6 4 for field use To use this circuit remove the fac tory jumper and install the switches LEGEND AND NOTES FOR WIRING DIAGRAMS Fig 16 and 17 LEGEND A Alarm CWFS Chil...

Страница 32: ...350 300 300 577 8 424 8 380 415 50 342 440 244 1 300 250 250 497 0 363 5 267 2 300 300 300 522 8 389 3 100 208 230 60 187 253 470 1 500 500 500 835 2 633 2 535 6 600 600 600 908 6 706 6 460 60 414 50...

Страница 33: ...8 633 362 5 400 400 400 531 1 435 1 384 1 400 400 400 552 7 456 7 380 60 342 418 479 3 500 500 500 761 0 609 0 521 3 600 600 600 803 0 651 0 230 50 207 253 796 2 800 800 800 1206 6 988 3 865 8 1000 80...

Страница 34: ...497 0 500 600 600 760 1 622 1 315 208 230 60 187 253 890 4 1000 1000 1000 1391 3 1115 3 1000 0 1000 1200 1200 1501 3 1225 3 460 60 414 506 413 1 450 450 450 676 3 538 3 451 1 450 500 500 714 3 576 3 5...

Страница 35: ...344 9 350 350 400 599 6 467 6 315 208 230 60 187 253 521 4 600 600 600 1019 2 743 2 587 2 600 600 700 1092 6 816 6 460 60 414 506 248 9 300 250 300 500 8 367 3 273 8 300 300 300 529 4 395 9 575 60 518...

Страница 36: ...5 247 346 50 44 9 247 79 5 382 44 9 247 53 8 280 380 415 50 43 6 223 65 4 345 43 6 223 46 8 280 090 PW 208 230 60 89 7 268 67 9 207 89 7 268 89 7 268 460 60 44 9 134 33 3 104 44 9 134 44 9 134 575 60...

Страница 37: ...07 7 304 107 7 304 460 60 46 8 152 46 8 152 46 8 152 46 8 152 46 8 152 46 8 152 575 60 41 7 106 41 7 106 41 7 106 41 7 106 41 7 106 41 7 106 380 60 55 8 168 55 8 168 55 8 168 55 8 168 55 8 168 55 8 16...

Страница 38: ...400 380 415 50 65 5 345 65 5 345 65 5 345 65 5 345 65 5 345 255 PW 208 230 60 89 8 268 89 8 268 89 8 268 151 3 414 151 3 414 460 60 44 9 134 44 9 134 44 9 134 65 4 207 65 4 207 575 60 36 6 99 36 6 99...

Страница 39: ...5 247 52 6 280 45 5 247 52 6 280 346 50 44 9 247 79 5 382 44 9 247 79 5 382 380 415 50 43 6 223 65 4 345 43 6 223 65 4 345 255 PW 208 230 60 89 7 268 106 4 304 89 7 268 106 4 304 460 60 44 9 134 48 7...

Страница 40: ...80 2 400 55 8 294 80 2 400 80 2 400 230 50 87 9 366 87 9 366 107 7 545 87 9 366 107 7 545 107 7 545 380 415 50 46 8 253 46 8 253 65 5 345 46 8 253 65 5 345 65 5 345 330 PW 208 230 60 107 7 304 107 7 3...

Страница 41: ...345 330 PW 208 230 60 107 7 304 107 7 304 107 7 304 107 7 304 107 7 304 107 7 304 460 60 46 8 152 46 8 152 46 8 152 46 8 152 46 8 152 46 8 152 575 60 41 7 106 41 7 106 41 7 106 41 7 106 41 7 106 41 7...

Страница 42: ...80 2 240 80 2 240 230 50 77 0 206 77 0 206 107 7 327 107 7 327 107 7 327 107 7 327 107 7 327 380 415 50 44 9 134 44 9 134 65 5 207 65 5 207 65 5 207 65 5 207 65 5 207 30GT UNIT SIZE NAMEPLATE V Hz 3...

Страница 43: ...ng types of temperature reset Return fluid temperature reset Space temperature reset requires accessory thermistor Outdoor air temperature reset requires accessory thermistor Chilled fluid flow switch...

Страница 44: ...t and output signals of microprocessor control prior to unit start up This check ensures that all con trol options thermistors and status switches are in proper working order To initiate the quick tes...

Страница 45: ...ter Fluid Temperature TP Test Pin Fig 19 Center of Flotronic Control System 080 110 and 230B 315B Shown NOTES 1 Refer to Controls and Troubleshooting literature for details 2 Processor board is rotate...

Страница 46: ...and quick test display codes C QUICK TEST STEPS 31 42 OUTPUT RELAYS These quick test steps allow microprocessor to check output signals from relay boards in unit control system In addition operation...

Страница 47: ...8 Brine EXV Configuration Header 6 TXV 50 Hz Configuration Header 7 60 Hz External Reset DIP Switch 1 Return Fluid Reset Reset Disabled DIP Switch 2 Reset Enabled Pulldown Disabled DIP Switch 3 Pulld...

Страница 48: ...or Not Used Thermistor OK T7 Compressor Thermistor Circuit A EXV Units Thermistor Faulty or Not Used Thermistor OK T8 Compressor Thermistor Circuit B EXV Units Thermistor Faulty or Not Used Thermisto...

Страница 49: ...rgize Compressor B1 OFM2 080 110 Energize Compressor B1 OFM6 and OFM8 all other unit sizes K5 No Action 080 Energize Compressor B2 all other unit sizes K6 No Action 080 150 K7 Energize Compressor B3 1...

Страница 50: ...ls and Troubleshooting literature for details 4 Start chilled fluid pump 5 Turn ON OFF switch to ON position The display will read During this time the machine checks all po tentiometers and thermisto...

Страница 51: ...low could subject tubes to frost pinching in tube sheet resulting in failure of cooler Consult application data and job design requirements to determine flow rate requirements for particular installat...

Страница 52: ...fluid temperature is being reset display shows when the display button is pressed HEAD PRESSURE CONTROL Units with EXV Microprocessor controls EXV to maintain a superheat of 30 F 16 7 C entering comp...

Страница 53: ...0 A1 B1 5 63 A1 A2 B1 63 A1 B1 B2 6 70 A1 A2 B1 70 A1 B1 B2 7 93 A1 A2 B1 B2 93 A1 A2 B1 B2 8 100 A1 A2 B1 B2 100 A1 A2 B1 B2 110 290B 315B 60 Hz A1 B1 1 14 A1 14 B1 2 29 A1 B1 29 A1 B1 3 36 A1 B1 36...

Страница 54: ...B1 28 A1 B1 4 33 A1 B1 33 A1 B1 5 44 A1 A2 B1 44 A1 B1 B2 6 50 A1 A2 B1 50 A1 B1 B2 7 61 A1 A2 B1 B2 61 A1 A2 B1 B2 8 67 A1 A2 B1 B2 67 A1 A2 B1 B2 9 78 A1 A2 A3 B1 B2 78 A1 A2 B1 B2 B3 10 83 A1 A2 A3...

Страница 55: ...7 A1 A2 B1 B2 67 A1 A2 B1 B2 5 83 A1 A2 A3 B1 B2 83 A1 A2 B1 B2 B3 6 100 A1 A2 A3 B1 B2 B3 100 A1 A2 A3 B1 B2 B3 190 290A 360A 390B 50 Hz A1 1 11 A1 11 A1 2 17 A1 17 A1 3 28 A1 B1 28 A1 B1 4 33 A1 B1...

Страница 56: ...ctronic Expansion Valve T Thermistor TXV Thermostatic Expansion Valve Fig 21 Typical Thermistor Locations SIZE 080 110 SIZE 130 210 And associated modular units see Table 1 Fig 22 Thermistor T3 and T4...

Страница 57: ...ec tronic control system that normally does not require service For details on controls refer to Controls and Troubleshoot ing literature 30GT080 110 AND 230B 315B UNIT CONTROL BOX Viewed facing compr...

Страница 58: ...30A 315A and 330A B 420A B only 3 Open the air vent at the top of the cooler and open the drain on the bottom of the cooler near the leaving fluid outlet to drain the cooler Both the drain and the air...

Страница 59: ...7 Close the air vent at the top of the cooler and close the drain on the bottom of the cooler near the leaving fluid outlet Both the drain and the air vent are located on the leaving fluid end of the...

Страница 60: ...erant leaks with soap solution or Halide device 6 Replace cooler insulation Condenser Coils COIL CLEANING Clean coils with a vacuum cleaner fresh water compressed air or a bristle brush not wire Units...

Страница 61: ...oad ing the compressor This is commonly referred to as MOP maximum operating pressure If it appears that EXV is not properly controlling operat ing suction pressure or superheat there are a number of...

Страница 62: ...on processor board and that thermistor probes are located in proper position in refrigerant circuit Fig 21 and 23 When above checks have been completed actual opera tion of EXV can be checked by usin...

Страница 63: ...859 3 906 88 1 832 3 814 89 1 805 3 726 90 1 778 3 640 91 1 751 3 556 92 1 725 3 474 93 1 699 3 395 94 1 673 3 318 95 1 647 3 243 96 1 622 3 170 97 1 597 3 099 98 1 572 3 031 99 1 548 2 964 100 1 523...

Страница 64: ...9 5 1 912 4086 30 0 1 887 4000 30 5 1 862 3915 31 0 1 837 3832 31 5 1 813 3752 32 0 1 789 3674 32 5 1 764 3597 33 0 1 741 3523 33 5 1 717 3450 34 0 1 693 3379 34 5 1 670 3310 35 0 1 647 3243 35 5 1 62...

Страница 65: ...ooler by controlling flow of refrigerant into cooler Superheat can be reset but should be reset only if absolutely necessary When optional TXVs are used thermistors T5 T6 T7 and T8 are eliminated see...

Страница 66: ...awn from coupling for service TO REPLACE THERMISTORS T1 T5 T6 T7 AND T8 Add a small amount of thermal conductive grease to ther mistor well Thermistors are friction fit thermistors which must be slipp...

Страница 67: ...ly to processor board Switch is set to open at approximately 5 psig 35 kPa and to close at 9 psig 62 kPa maximum If switch opens when compressor is running processor board stops all com pressors in ci...

Страница 68: ...ON A device is located on suc tion line designed to relieve pressure on a temperature rise to approximately 170 F 77 C PRESSURE RELIEF VALVES Where relief valves are installed there is one in each cir...

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