Carrier WEATHERMASTER 48Z030 Operation And Service Manual Download Page 157

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157

APPENDIX C — UNIT STAGING TABLES (cont)

STAGING SEQUENCE — SIZE 040 UNITS — 60 Hz

LEGEND

STAGING SEQUENCE — SIZE 040 UNITS — 50 Hz

LEGEND

STAGING SEQUENCE — SIZE 050 UNITS

LEGEND

STAGING SEQUENCE — SIZE 055 UNITS — 60 Hz

LEGEND

CIRCUIT A

STAGE

COMPRESSOR OR UNLOADER

PERCENT

Lead

25%

50%

75%

100%

Lag

25%

50%

75%

100%

0 —

Off

a,b —

Compressor Circuit Designation

1 —

—

Unloader

CIRCUIT A

STAGE

COMPRESSOR OR UNLOADER

PERCENT

Lead

19%

37%

41%

59%

62%

80%

89%

100%

Lag

22%

43%

59%

62%

80%

89%

100%

0 —

Off

a,b —

Compressor Circuit Designation

1 —

—

Unloader

CIRCUIT A

STAGE

COMPRESSOR OR UNLOADER

PERCENT

Lead

19%

37%

57%

62%

80%

100%

Lag

22%

41%

59%

62%

80%

100%

0 —

Off

a,b —

Compressor Circuit Designation

1 —

—

Unloader

CIRCUIT A

STAGE

COMPRESSOR OR UNLOADER

PERCENT

Lead

20%

40%

60%

80%

100%

Lag

20%

40%

60%

80%

100%

0 —

Off

a,b —

Compressor Circuit Designation

1 —

—

Unloader

Summary of Contents for WEATHERMASTER 48Z030

Page 1: ...9 Remote Switch 39 VFD Control 39 Supply Air Reset 39 Demand Limit Control 39 Economizer Outdoor Air Damper Control 39 Page CONTROLS OPERATION 40 83 Modes 40 SYSTEM MODES HVAC MODES Unit Configuration Submenu 42 Cooling Control 45 SETTING UP THE SYSTEM MACHINE DEPENDENT CONFIGURATIONS SET POINTS SUPPLY AIR RESET CONFIGURATION COOLING CONFIGURATION COOL MODE SELECTION PROCESS COOL MODE DIAGNOSTIC H...

Page 2: ...PPENDIX D VFD INFORMATION 160 168 APPENDIX E MODE SELECTION PROCESS 169 170 INDEX 171 CONTROLS SET POINT AND CONFIGURATION LOG CL 1 CL 6 UNIT START UP CHECKLIST CL 7 SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical compo nents Only trained and qualified service personnel should install repair or service air condit...

Page 3: ... ing conventions for discussing configuration points for the lo cal display scrolling marquee or Navigator accessory will be used in this manual Point names will be written with the Mode name first then any submodes then the point name each separated by an arrow symbol Names will also be shown in bold and italics As an example the IAQ Economizer Override Position which is located in the Configurat...

Page 4: ...cessory hand held Navigator module is also available This portable device has an extended communication cable that can be plugged into the unit s communication network either at the main control box or at the opposite end of the unit at a remote modular plug The Navigator display provides the same menu structure control access and display data as is available at the unit mounted scrolling marquee ...

Page 5: ...units display will resume Repeat the process as required for other items If the user needs to force a variable follow the same process as when editing a configuration parameter A forced variable will be displayed with a blinking f following its value For example if supply fan requested FAN F is forced the display shows YESf where the f is blinking to signify a force on the point Remove the force b...

Page 6: ...ly Air Setpoint SA HT Tempering Purge SASP T PRG Tempering in Cool SASP T CL Tempering in Vent Occ SASP T V OC Tempering in Vent Unocc SASP T V UN General Inputs GEN I Compressor Feedback FD BK Thermostat Inputs STAT Fire Smoke Modes FIRE Relative Humidity REL H Air Quality Sensors AIR Q CFM Sensors CFM Reset Inputs RSET 4 20 Milliamp Inputs 4 20 Fans FANS Cooling COOL Heating HEAT Actuators ACTU ...

Page 7: ...lay ComfortVIEW software or Service Tool to change the configuration values 3 If the internal time schedules are going to be used config ure the Occupancy schedule 4 Verify that the control time periods programmed meet current requirements 5 Start unit using Service Test mode to verify operation of all major components 6 If the unit is a VAV unit make sure to configure the static pressure set poin...

Page 8: ...523 7 61 549 8 22 575 8 87 601 9 55 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 6 000 567 3 84 595 4 30 622 4 78 647 5 26 671 5 75 695 6 25 717 6 76 738 7 27 7 500 575 4 57 604 5 10 632 5 63 658 6 18 683 6 73 707 7 29 730 7 86 752 8 43 9 000 581 5 38 611 5 97 639 6 56 665 7 16 691 7 78 715 8 40...

Page 9: ... 31 485 6 80 511 7 35 538 7 95 564 8 59 590 9 26 616 9 96 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 7 000 577 4 40 606 4 91 633 5 43 659 5 95 684 6 49 707 7 03 730 7 58 752 8 14 8 000 583 4 94 612 5 49 640 6 05 666 6 62 691 7 19 715 7 78 738 8 37 760 8 97 10 000 594 6 16 623 6 79 651 7 42 677...

Page 10: ... 51 555 12 46 579 13 36 602 14 24 624 15 11 645 15 98 666 16 84 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 8 000 571 4 60 600 5 14 628 5 70 654 6 27 679 6 85 703 7 44 726 8 04 748 8 65 10 000 579 5 75 608 6 36 636 6 98 662 7 62 688 8 28 712 8 94 736 9 62 758 10 30 12 000 590 7 21 618 7 87 645 ...

Page 11: ...6 570 12 99 593 13 88 615 14 76 637 15 63 658 16 50 679 17 38 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 9 000 579 5 23 608 5 81 636 6 41 662 7 02 687 7 64 712 8 27 735 8 91 757 9 57 10 000 584 5 85 613 6 47 641 7 10 667 7 74 692 8 40 717 9 07 740 9 75 763 10 44 12 000 597 7 36 625 8 03 651 8 ...

Page 12: ...513 14 63 533 15 62 552 16 62 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 10 000 497 7 27 523 8 39 549 9 55 573 10 75 596 11 98 618 13 23 639 14 51 659 15 81 12 500 497 7 73 523 8 83 549 10 00 573 11 22 597 12 49 619 13 81 641 15 16 662 16 55 15 000 501 8 63 526 9 67 550 10 77 574 11 94 597 13 ...

Page 13: ...476 17 29 497 18 50 519 19 82 541 21 15 562 22 45 581 23 70 599 24 93 617 26 14 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 12 000 504 7 56 530 8 57 555 9 61 578 10 66 600 11 73 621 12 81 641 13 91 660 15 01 15 000 509 8 87 535 9 95 559 11 07 583 12 25 606 13 45 628 14 68 650 15 95 670 17 23 18...

Page 14: ... 16 576 21 29 594 22 41 30 000 476 17 29 497 18 50 519 19 82 541 21 15 562 22 45 581 23 70 599 24 93 617 26 14 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 14 000 507 8 39 533 9 46 558 10 57 582 11 71 605 12 89 627 14 08 648 15 29 668 16 52 17 500 519 10 42 542 11 48 565 12 60 588 13 78 610 15 0...

Page 15: ...RFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 6 000 594 5 43 623 6 09 651 6 75 676 7 41 701 8 08 725 8 75 747 9 42 769 10 10 7 500 605 6 16 635 6 88 664 7 62 691 8 36 716 9 11 741 9 88 765 10 64 787 11 41 9 000 617 7 02 646 7 76 674 8 52 702 9 31 728 10 11 753 10 93 777 11 76 800 12 60 10 500 633 8...

Page 16: ...85 646 11 55 671 12 27 694 13 01 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 7 000 607 6 03 637 6 74 665 7 46 691 8 18 717 8 91 741 9 65 764 10 39 786 11 13 8 000 615 6 58 645 7 32 673 8 07 700 8 84 726 9 62 751 10 41 775 11 20 797 12 00 10 000 636 7 94 664 8 70 691 9 48 717 10 29 743 11 11 768...

Page 17: ...15 59 663 16 44 685 17 28 707 18 11 728 18 96 749 19 83 770 20 71 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 8 000 603 6 23 632 6 87 659 7 50 685 8 14 710 8 78 734 9 43 757 10 07 779 10 71 10 000 623 7 70 651 8 41 678 9 13 703 9 86 728 10 60 752 11 33 776 12 08 798 12 82 12 000 648 9 50 674 10...

Page 18: ...630 15 28 654 16 14 677 16 97 699 17 81 720 18 66 741 19 53 762 20 43 783 21 34 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 9 000 617 7 08 645 7 77 672 8 47 698 9 18 723 9 90 747 10 62 770 11 34 793 12 07 10 000 628 7 87 656 8 59 682 9 33 708 10 07 733 10 82 757 11 58 780 12 35 802 13 12 12 000...

Page 19: ...LE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 10 000 500 7 48 527 8 46 552 9 45 576 10 44 598 11 42 619 12 41 639 13 41 659 14 41 12 500 498 8 63 525 9 76 552 10 93 577 12 12 601 13 32 624 14 54 646 15 76 667 16 99 15 000 501 10 03 526 11 17 550 12 38 575 13 65 598 14 97 621 16 32 644 17 71 666 19 11 17 500 514 12 ...

Page 20: ...25 14 581 26 61 599 28 06 616 29 52 632 30 97 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 12 000 486 7 94 511 8 91 535 9 91 559 10 94 581 11 99 603 13 07 624 14 16 645 15 28 15 000 498 9 90 520 10 93 543 12 01 564 13 11 586 14 26 606 15 43 627 16 63 646 17 86 18 000 518 12 57 539 13 66 559 14 7...

Page 21: ...0 500 20 52 522 22 11 543 23 64 563 25 14 581 26 61 599 28 06 616 29 52 632 30 97 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 14 000 493 9 17 516 10 19 539 11 24 562 12 33 583 13 45 605 14 60 625 15 77 645 16 96 17 500 515 12 07 535 13 14 556 14 26 576 15 42 595 16 61 615 17 84 634 19 09 652 20...

Page 22: ...24 43 30 000 390 17 78 408 19 31 426 20 80 443 22 28 459 23 75 474 25 24 489 26 73 504 28 24 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Hp Rpm Hp Rpm Hp Rpm Hp Rpm Hp Rpm Hp 14 000 416 9 12 437 10 10 457 11 10 476 12 13 495 13 17 513 14 22 531 15 29 548 16 38 16 000 423 10 62 442 11 68 462 12 77 480 13 88 498 15 00 516 16 15 533 17 31 5...

Page 23: ...3 87 1270 25 58 1296 27 29 1321 29 01 1345 30 75 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 2 70 3 00 3 30 3 60 3 90 4 20 4 50 4 80 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 15 000 985 11 83 1024 13 05 1062 14 29 1098 15 54 1132 16 80 1166 18 07 1199 19 34 1230 20 63 16 000 1004 12 68 1042 13 95 1079 15 24 1114 16 55 1149 17 86 1182 19 19 1215 20 52 1246 21 87 18 00...

Page 24: ... 39 454 27 13 470 28 84 485 30 53 500 32 20 514 33 87 528 35 55 542 37 23 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 16 000 423 10 62 442 11 68 462 12 77 480 13 88 498 15 00 516 16 15 533 17 31 550 18 48 18 000 432 12 36 450 13 50 469 14 66 486 15 84 504 17 05 521 18 27 537 19 53 553 20 78 20 ...

Page 25: ...1430 35 91 1452 37 82 1475 39 73 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 2 70 3 00 3 30 3 60 3 90 4 20 4 50 4 80 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 17 000 1024 13 58 1061 14 90 1097 16 24 1132 17 59 1166 18 96 1199 20 35 1231 21 74 1262 23 14 18 000 1045 14 54 1081 15 90 1116 17 28 1150 18 69 1184 20 11 1216 21 54 1248 22 99 1279 24 45 20 000 1090 16 67 11...

Page 26: ...2 63 555 44 50 568 46 36 581 48 23 40 000 509 40 54 523 42 61 537 44 65 550 46 66 563 48 64 576 50 62 589 52 59 601 54 56 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 20 000 443 14 38 460 15 58 478 16 82 495 18 07 511 19 35 527 20 65 543 21 98 559 23 32 22 000 455 16 70 472 17 98 489 19 28 505 2...

Page 27: ... 40 1575 45 65 1596 47 88 1616 50 10 1637 52 31 1657 54 51 1676 56 71 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 2 70 3 00 3 30 3 60 3 90 4 20 4 50 4 80 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 20 000 1090 16 67 1124 18 10 1157 19 56 1190 21 05 1222 22 56 1253 24 09 1284 25 63 1314 27 19 22 000 1140 19 11 1171 20 61 1202 22 14 1233 23 69 1263 25 28 1293 26 88 1323 ...

Page 28: ...9 781 7 94 803 8 61 825 9 30 847 9 99 18 000 687 5 57 718 6 35 746 7 07 771 7 76 795 8 45 817 9 14 839 9 85 860 10 56 881 11 20 901 11 96 20 000 756 7 37 786 8 25 812 9 06 836 9 84 858 10 59 879 11 25 900 12 03 920 12 82 939 13 62 958 14 43 22 000 825 9 50 853 10 50 878 11 31 901 12 20 923 13 06 943 13 90 962 14 75 981 15 60 1000 16 46 1018 17 33 24 000 895 11 94 922 13 08 945 14 12 967 15 10 988 ...

Page 29: ... 28 000 918 27 99 940 28 89 961 29 83 981 30 81 1001 31 81 30 000 965 33 15 986 34 06 1006 35 01 1026 36 00 1045 37 02 32 000 1013 38 98 1033 39 88 1053 40 84 1071 41 84 1090 42 88 34 000 1062 45 50 1081 46 39 1100 47 35 1118 48 36 1136 49 41 36 000 1111 52 77 1129 53 65 1147 54 59 1165 55 60 38 000 1160 60 81 40 000 AIRFLOW Cfm AVAILABLE EXTERNAL STATIC PRESSURE in wg 2 2 2 4 2 6 2 8 3 0 Rpm Bhp ...

Page 30: ...0 2 7 61 28 0 89 5 11 8 8 80 20 7 14 6 12 0 89 5 15 11 19 15 3 11 41 43 8 91 0 18 0 13 43 27 0 21 9 19 0 91 0 20 14 92 22 4 16 71 62 0 91 0 23 4 17 46 37 4 28 7 23 0 91 0 25 18 65 28 9 21 56 72 0 91 7 29 4 21 93 43 8 37 4 31 0 91 7 30 22 38 35 6 26 56 95 0 92 4 34 7 25 89 N A 48 0 47 0 92 4 40 29 80 42 0 31 30 N A N A 55 0 N A 93 0 Bhp Brake Horsepower BkW Brake Kilowatts PREMIUM EFFICIENCY MOTORS...

Page 31: ...wer BkW Brake Kilowatts UNIT SIZE UNIT TYPE MINIMUM COOLING CFM MAXIMUM CFM 030 48ZG ZN Low Heat 6 000 15 000 48ZG ZN High Heat 6 000 15 000 50ZG ZN Z2 Z3 6 000 15 000 035 48ZG ZN Low Heat 7 000 15 000 48ZG ZN High Heat 7 000 15 000 50ZG ZN Z2 Z3 7 000 15 000 040 48ZG ZN Low Heat 8 000 20 000 48ZG ZN High Heat 8 000 20 000 50ZG ZN Z2 Z3 8 000 20 000 050 48ZG ZN Low Heat 9 000 20 000 48ZG ZN High H...

Page 32: ...5 0 06 0 08 0 10 0 11 0 13 0 15 FILTERS Pleated 2 in Bags With Prefilters 0 00 0 45 0 00 0 57 0 00 0 68 0 01 0 80 0 02 0 94 0 03 1 07 0 03 1 23 0 04 1 38 0 04 0 05 0 05 VERTICAL POWER EXHAUST 0 02 0 04 0 06 0 10 0 13 0 17 0 21 0 25 0 29 0 33 0 38 HORIZONTAL POWER EXHAUST 0 12 0 16 0 21 0 27 0 34 0 41 0 49 0 58 0 68 0 78 0 89 LOW GAS HEAT 0 22 0 24 0 27 0 33 0 33 0 35 0 37 0 41 0 44 0 51 0 61 HIGH ...

Page 33: ... Temperature Sensor To configure the unit perform the following 1 The type of control is configured under Configuration UNIT C TYP Set C TYP to 1 VAV RAT for return air sensor Set C TYP to 2 VAV SPT for space tempera ture sensor NOTE For VAV with a space sensor VAV SPT under Configuration UNIT SENS SPT S enable the space sensor by setting SPT S to ENBL 2 The space temperature set points and the su...

Page 34: ...nd control ventilation DCV EC MN Economizer Min Position IAQ M IAQ Demand Vent Min Pos O C MX Economizer Min Flow O C MN IAQ Demand Vent Min Flow Configuration IAQ DCV C IAQ M is used to set the absolute minimum vent position or maximum reset under DCV Configuration IAQ DCV C EC MN is used to set the minimum damper position or with no DCV reset This is also referenced in the economizer section Con...

Page 35: ...al DCFM Configuration BP FAN T FT ST if the building pres sure deviates from the Building Pressure Set Point BP SP Periodically at the rate set by the Fan Track Learn Rate FT TM the delta cfm is adjusted upward or downward with a maximum adjustment at a given instance to be no greater than Fan Track Max correction FT AD The delta cfm can not ever be adjusted greater than or less than the Fan Track...

Page 36: ...to Edit mode and the first two digits of the 00 00 will start flashing Use the UP or DOWN key to display the correct value for hours in 24 hour military time Press ENTER and hour value is saved and the minutes digits will start flashing Use the same procedure to display and save the desired minutes value 5 Configure the unoccupied time for period 1 UNC Press ENTER to go into Edit mode and the firs...

Page 37: ...y IGC_CANG IGV M VFD IGV Maximum Speed 0 100 STATPMAX BP1 C BP 1 Command Position 0 100 BLDG1TST B1 CL BP 1 Actuator Cal Cmd YES NO BLDG1CAL BP1 A BP Act 1 Control Angle read only BP1_CANG BP1 M BP 1 Actuator Max Pos 0 100 BP1SETMX BP2 C BP 2 Command Position 0 100 BLDG2TST B2 CL BP 2 Actuator Cal Cmd YES NO BLDG2CAL BP2 A BP Act 2 Control Angle read only BP2_CANG BP2 M BP 2 Actuator Max Pos 0 100...

Page 38: ...e to manually move the actuator during the cooling test mode at all times regardless if econo mizer cooling is suitable or not Service Test COOL SP SP Static Pressure Setpoint Upon entering the cooling sub menu the static pressure control item will default to the unit s static pressure set point Thereafter as mechanical cooling commences and the fan starts the static pressure can be manually adjus...

Page 39: ...ontrols expan sion module CEM DEMAND LIMIT DISCRETE INPUTS First set DM L S in Configuration DMD L to 1 2 switches When Inputs GEN I DL S1 Demand Switch no 1 is OFF the control will not set any limit to the capacity and when ON the control sets a capacity limit to the Configura tion DMD L D L S1 set point Likewise when Inputs GEN I DL S2 Demand Switch no 2 is OFF the control will not set any limit...

Page 40: ...fined such that 4 mA IQ R L and 20 mA IQ R H When the differen tial air quality DAQ IAQ OAQ U exceeds the DAQ H set point Configuration IAQ AQ SP menu and the supply fan is on the economizer minimum vent position Configura tion IAQ DCV C EC MN is overridden and the damper is moved to the IQ P O configuration When the DAQ falls be low the DAQ L set point Configuration IAQ AQ SP menu the economizer ...

Page 41: ...he system mode is Test the control is limited to the Test mode and is controllable via the local displays scrolling marquee and Navigator display or through the factory service test control The System Test modes are Factory Test Enabled and Service Test Enabled See the Service Test section on page 36 for details on test control in this mode 1 Factory Test mode Factory test enabled 2 Service Test m...

Page 42: ...The unit is in the special Fire Evacuation mode where the supply fan is off the economizer damper is closed and the power exhaust fans are on This mode is invoked by the Fire Evacuation EVAC input which can be found in the INPUT FIRE submenu HVAC Mode SMOKE PURGE 24 The unit is in the special Fire Purge mode where the supply fan is on the econo mizer damper is open and the power exhaust fans are o...

Page 43: ...D Config UNIT SFS S YES HVAC Mode OFF Fan Status Fail Unit just waking up from power reset HVAC Mode OFF Starting Up Unit shutting down HVAC Mode Shutting Down Compressor contactor welded on HVAC Mode Comp Stuck On Unit control free to select normal heating cooling HVAC mode HVAC Mode OFF HVAC Mode Tempering Vent HVAC Mode Tempering LoCool HVAC Mode Tempering HiCool HVAC Mode Re Heat HVAC Mode Deh...

Page 44: ...rt in Heating is not permitted Fan Fail Shuts Downs Unit SFS S This configuration will determine whether the unit should shut down on a supply fan status fail or simply alert the condition and continue to run If set to YES then the control will shut down the unit and send out an alarm if supply fan status monitoring fails If set to NO the control will not shut down the unit if supply fan status mo...

Page 45: ...will energize when the unit is in the occupied state The relay could then be used to control lighting or other functions that need to be on during the occupied state If AUX R is set to 3 the auxiliary re lay will energize when the supply fan is energized and if equipped with a VFD the VFD output is not 0 The default is 0 Space Temp Sensor SPT S If a space temperature sensor is installed T55 T56 en...

Page 46: ...atio RTIO This configuration is used when RS CF is set to 1 or 2 For every degree that the controlling temperature space return falls below the occupied cooling set point OCSP the calculated value of the supply air reset will rise by the number of degrees as specified by this parameter Reset Limit LIMT This configuration is used when RS CF is set to 1 or 2 This configuration places a clamp on the ...

Page 47: ...ed out directly by the discrete inputs Inputs STAT Y1 and Y2 2 VAV cooling types C TYP 1 and 2 are called out in the occupied period Operating Modes MODE OCC ON 3 VAV cooling types C TYP 1 and 2 are called out in the unoccupied period Operating Modes MODE OCC OFF They are also used for space sensor control types C TYP 5 and 6 in both the occupied and unoccu pied periods This section is devoted to ...

Page 48: ...le to exit out of a cooling mode during the occupied period if the return air temperature drops low enough When supply air temperature reset is not configured this capability will work to prevent over cooling the space during the occupied period Supply Air Set Point Control and the Staging of Compressors Once the control has determined that a cooling mode is in effect the cooling control point Run...

Page 49: ...pied period See the Cool Trend Demand Level section for more details Timeguards In addition to the set points and offsets which determine the trip points for bringing on and bringing off cool modes there is a timeguard which enforces a time delay between the transitioning from a low cool to a high cool mode This time delay is 8 minutes There is a timeguard which enforces a time delay between the t...

Page 50: ...uld rise in degrees depending on the R PCT calculation and exactly how much capacity is to be subtracted SUB R R PCT C CAP capacity after subtracting a cooling stage For Example If R PCT 0 2 and the control would be sub tracting 30 capacity by taking the next step down 0 2 times 30 6 F SUB R Rise Per Percent Capacity R PCT This is a real time cal culation that represents the amount of degrees of d...

Page 51: ... two variables Z PLU used when adding a stage and Z MIN used when subtracting a stage They are calculated with the following formulas Z PLU Z GN 10 4 ADD R 0 6 Z MIN Z GN 10 4 SUB R 0 6 Where Z GN configuration used to modify the threshold levels used for staging Configuration COOL Z GN ADD R R PCT C CAP capacity after adding a cooling stage SUB R R PCT C CAP capacity after subtracting a cool ing ...

Page 52: ...h an external Loadshed Device either through CCN communications exter nal switches or 4 to 20 mA input The control has the capability of loadshedding and limiting in 3 ways Two discrete inputs tied to configurable demand limit set point percentages An external 4 to 20 mA input that can reset capacity back linearly to a set point percentage CCN loadshed functionality NOTE It is also possible to for...

Page 53: ...h circuits If Stage 1 Cycling Motormaster is selected the first stage operates as follows The fan stage turns ON whenever either saturated condens ing temperature SCT is greater than 138 F The fan stage 1 turns OFF whenever both SCTs are less than the HPSP 37 F for 90 seconds and fan stage is 1 Fan Stage 2 Operation Sizes 030 050 The control ener gizes fan CD F A when either of the SCTs exceeds HP...

Page 54: ...ems are active to provide for the unit heating system s Minimum Heating Airflow rate Also for VAV applications the heat interlock relay HIR function provides the switching of a control signal intended for use by the VAV terminals This signal must be used to com mand the terminals to open to their Heating Open positions The HIR is energized whenever the Heating mode is active an IAQ pre occupied fo...

Page 55: ...cond the unit has a configuration which can enable or disable heating in the occupied period except for a standard morning warmup cycle Configuration HEAT OC EN See descriptions above in the Setting Up the System section for more information If the unit is allowed to select a heat mode then the next step is an evaluation of demand versus set point At this point the logic is the same as for control...

Page 56: ... VAV control types C TYP 1 and 2 in the occupied period See Heat Trend Demand Level section for more details HEAT MODE DIAGNOSTIC HELP To quickly deter mine the current trip points for the low and high heat modes there is a menu in the local display which lets the user quickly view the state of the system This menu also contains the cool trip points as well See Table 44 at the local display under ...

Page 57: ... field it is a good idea to remove the additional peel off serial number sticker on the actuator and cover up the old one inside the control doors STAGED GAS HEATING CONTROL HT CF 3 As an option the units with gas heat can be equipped with staged gas heat controls that will provide from 5 to 11 stages of heat capacity This is intended for tempering mode and tempering economizer air when in a cooli...

Page 58: ... set of staging patterns is con trolled via the heat stage type configuration parameter HT ST As the heating capacity rises and falls based on demand the staged gas control logic will stage the heat relay patterns up and down respectively The Heat Stage Type configuration selects one of 5 staging patterns that the stage gas control will use In addition to the staging patterns the capacity for each...

Page 59: ...oards This board provides control for the ignition sys tem for the gas heat sections On size 030 050 low heat units there will be one IGC board On size 030 050 high heat units and 055 105 low heat units there are two IGC boards On size 055 105 high heat units there are three IGC boards When a call for gas heat is initiated power is sent to W on the IGC boards For standard 2 stage heat all boards a...

Page 60: ...the sensor through the duct wall and se cure in place Attach the new conductor cable to the sensor leads and ter minate in an appropriate junction box Connect the opposite end inside the unit control box at the factory leads from MBB J8 terminals 11 and 12 PNK leads Secure the unattached PNK leads from the factory harness to ensure no accidental contact with other terminals inside the control box ...

Page 61: ...simply maintain control over duct static pressure in order to accommodate the needs of the terminals and therefore to meet the varying combined airflow requirement The unit design includes two alternative optional means of accommodating this requirement This section describes the technique by which this control takes place A unit intended for use in a VAV system can be equipped with either an opti...

Page 62: ...or the supply fan IGV This is usually set to 100 VFD IGV Fire Speed Override SP FS This is the speed that the supply fan VFD or the supply fan IGV will use during the fire modes pressurization evacuation and purge This is usually set to 100 Static Pressure Reset Configuration SP RS This option is used to configure the static pressure reset function When SP RS 0 there is no static pressure reset vi...

Page 63: ...e IGV actuator serial number IGV Serial Number 4 ACT C SN 4 This variable records the fourth segment of the IGV actuator serial number IGV Serial Number 5 ACT C SN 5 This variable records the fifth segment of the IGV actuator serial number IGV Control Angle Low Limit ACT C C A LM The IGV actuator learns what its end stops are though a calibration at the factory Field installed actuators may be cal...

Page 64: ...itoring Configuration Fan Stat Monitoring Type SFS M This configuration se lects the type of fan status monitoring to be performed 0 NONE No switch or monitoring 1 SWITCH Use of the fan status switch 2 SP RISE Monitoring of the supply duct pressure Fan Fail Shuts Down Unit SFS S This configuration will configure the unit to shut down on a supply fan status fail or simply alert the condition and co...

Page 65: ...lity for further information on how to reset the economizer further to gain energy savings and to more carefully monitor IAQ problems Economizer Maximum Position EC MX The upper lim it of the economizer may be limited by setting EC MX It de faults to 98 to avoid problems associated with slight changes in the economizer damper s end stop over time Typically this will not need to be adjusted Economi...

Page 66: ...onfiguration ECON OA E C is configured for if the outdoor enthalpy exceeds the Honeywell curves or the outdoor enthalpy compare value Configuration ECON OA EN then free cooling will not be allowed NOTE If the user wishes to disable the standard enthalpy control from running concurrently a field supplied jumper must be installed between TB201 terminals 3 and 4 Differential Enthalpy Changeover This ...

Page 67: ...iguring the Economizer to Communicate Via Actuator Serial Number Every actuator used in the Z Series control system has its own unique serial number The rooftop control uses this serial number to communicate with the actuator over the local equipment network LEN These serial numbers are programmed at the factory and should not need changing Should field replacement of an actuator become necessary ...

Page 68: ...T FC LO 1 0 F hysteresis applied Unit not in a fire smoke mode No fan failure when configured to for unit to shut down on a fan failure If all of the above conditions are satisfied Unoccupied Economizer Free Cooling will start when both of the following conditions are true SPT OCSP 2 AND SPT OAT 8 The Unoccupied Economizer Free Cooling Mode will stop when either of the following conditions are tru...

Page 69: ...freezing conditions If either circuit s suction pressure drops to within 5 psig of the low suction pressure trip point the control will start adding reset to the economizer control point if it is active It will be possible to reset the control point upwards 10 degrees 2 degrees per psig between the low suction pressure trip point of 48 psig and 5 psig above it If this does not work and if the suct...

Page 70: ...ections may be made based on building pressure error This configuration is only valid when FT CF Yes Fan Track Initial DCFM FT ST For BP CF 5 this return exhaust control configuration is the start point upon which corrections offset are made over time when FT CF Yes It is the constant control point for delta cfm control when FT CF No Fan Track Max Clamp FT MX For BP CF 5 this return exhaust contro...

Page 71: ... values of PID set point without approval from Carrier BP CF 4 High Capacity Exhaust Control Control is accomplished with a VFD and two exhaust fan relays High capacity power exhaust consists of an exhaust fan VFD Outputs FANS E VFD enabled by one power exhaust relay Outputs FANS P E 1 and a second power exhaust relay Outputs FANS P E 2 which controls a single speed fan which is equal in capacity ...

Page 72: ...king Learning is enabled the control will adjust the delta cfm FT ST between the supply and return fan if the building pressure deviates from the Building Pressure Set Point BP SP Periodically at the rate set by the fan track learn rate FT TM the delta cfm is adjusted upward or downward with a maximum adjustment at a given instance to be no greater than fan track max correction FT AD The delta cfm...

Page 73: ...controls The IAQ function requires the installation of the factory option economizer system The DCV sequences also require the connection of accessory or field supplied space or return air CO2 sensors Fixed cfm rate control requires the factory installed outdoor air cfm option External control of the ventilation position requires supplemental devices including a 4 to 20 mA signal a 10 kilo ohm pot...

Page 74: ...from 0 0 kilo ohms to EC MN 10 kilo ohms IAQ Analog Fan Config Configuration IAQ AQ CF IQ A F This configuration is used to configure the control of the indoor fan If this option is used then the IAQ sensor must be in the space and not in the return duct It has the fol lowing configurations IQ A F 0 No Fan Start IAQ demand will never override normal indoor fan operation during occupied or unoccupi...

Page 75: ...nfig Configuration IAQ AQ CF OQ A C This is used to configure the type of outdoor sensor that will be used for OAQ levels It has the fol lowing configuration options OQ A C 0 No Sensor No sensor will be used and the internal software reference setting will be used OQ A C 1 OAQ Sensor with DAQ An outdoor CO2 sensor will be used OQ A C 2 4 to 20 mA Sensor without DAQ OAQ Lockout Value Configuration ...

Page 76: ...OACFM DCV Max Flow O C DB Econ OACFM MinPos Deadbd When the outdoor air cfm sensor is enabled the Economizer Min Position Configuration IAQ DCV C EC MN and the IAQ Demand Vent Min Pos Configuration IAQ DCV C IAQ M will no longer be used During vent periods the control will modulate the damper to maintain the outdoor air intake quantity between O C MX and O C MN The indoor air quality algorithm wil...

Page 77: ... A LM If the control angle learned through calibration is less than C A LM an alert will occur and the actuator will not function NOTE This configuration does not typically need adjustment It is configurable for the small number of jobs which may require a custom solution or workaround Dehumidification and Reheat The Dehumidifi cation function will override comfort condition set points based on dr...

Page 78: ...ccupied or mechanical cooling locked out HVAC mode is present dehumidification will be disabled An HVAC Off Vent or Cool mode must be in effect to launch either a Reheat or Dehumidification mode If an associated sensor responsible for dehumidification fails dehumidification will not be attempted SPRH RARH Initiating a Reheat or Dehumidification Mode To call out a Reheat mode in the Vent or the Off...

Page 79: ...s stand alone the user may want to set this to ON to accomplish the daylight savings function CCN OAT Broadcast OAT B If this configuration is set to ON the control will periodically broadcast its outside air temperature at a rate of once every 30 minutes CCN OARH Broadcast ORH B If this configuration is set to ON the control will periodically broadcast its outside air relative humidity at a rate ...

Page 80: ...ration will continue but VAV heating operation will be dis abled The alert will automatically reset RAT High Alert Limit Unocc RA H U If the return air temperature is above the configurable unoccupied RAT High Alert Limit RA H U then Alert 305 will be generated Oper ation will continue The alert will automatically reset OAT Low Alert Limit OAT L If the outside air tempera ture measured by the OAT ...

Page 81: ... Suction Pressure Circuit A Trim SP A T This variable is used to adjust the suction pressure sensor reading for circuit A The sensor reading can be adjusted 50 psig to match the actu al measured pressure Suction Pressure Circuit B Trim SP B T This variable is used to adjust the suction pressure sensor reading for circuit B The sensor reading can be adjusted 50 psig to match the actu al measured pr...

Page 82: ... set for normally open when off If a field supplied evacua tion input is used that is normally closed change this variable to closed Smoke Purge Off PRG L The smoke purge input is set for normally open when off If a field supplied smoke purge input is used that is normally closed change this variable to closed Dehumidify Switch Off DH LG The dehumidify in put is set for normally open when off If a...

Page 83: ...izes 040 105 The pressure regulating valve opens the bypass circuit as the evaporator suction pressure decreases into a range that might generate frost formation on the evaporator surface if sustained compressor operation occurs The hot gas refriger ant enters the evaporator coil and adds refrigeration load to the compressor circuit to offset a low load situation in the mixed air temperature condi...

Page 84: ...set to NO then the period s occupied time schedule will not be used on Friday This variable can be set for Periods 1 through 8 SATURDAY IN PERIOD PER X DAYS SAT This variable is used to include or remove Saturday from the sched ule Each period is assigned an occupied on and off time If this variable is set to YES then Saturday will be included in that period s occupied time schedule If this variab...

Page 85: ... Tables 74 and 75 THERMISTOR TEMPERATURE SENSOR CHECK A high quality digital volt ohmmeter is required to perform this check 1 Connect the digital voltmeter across the appropriate ther mistor terminals at the J8 terminal strip on the main base board 2 Using the voltage reading obtained read the sensor tem perature from Tables 74 and 75 3 To check thermistor accuracy measure temperature at probe lo...

Page 86: ...tes Continuously Unit undersized for load Decrease load or increase of size of unit Thermostat or occupancy schedule set point too low Reset thermostat or schedule set point Dirty air filters Replace filters Low refrigerant charge Check pressure locate leak repair evacuate and recharge Condenser coil dirty or restricted Clean coil or remove restriction Excessive Head Pressures Loose condenser ther...

Page 87: ...Check economizer position and configuration Adjust mini mum position using ComfortLink scrolling marquee Limit switch cycles main burners Check rotation of blower thermostat heat anticipator set tings and temperature rise of unit Adjust as needed Poor Flame Characteristics Incomplete combustion lack of combustion air results in Aldehyde odors CO sooting flame or floating flame Check all screws aro...

Page 88: ...2 173 7 685 89 2 144 7 507 90 2 115 7 333 91 2 087 7 165 92 2 059 6 999 93 2 030 6 838 94 2 003 6 683 95 1 975 6 530 96 1 948 6 383 97 1 921 6 238 98 1 894 6 098 99 1 867 5 961 100 1 841 5 827 101 1 815 5 698 102 1 789 5 571 103 1 763 5 449 104 1 738 5 327 105 1 713 5 210 106 1 688 5 095 107 1 663 4 984 108 1 639 4 876 109 1 615 4 769 110 1 591 4 666 111 1 567 4 564 112 1 544 4 467 113 1 521 4 370...

Page 89: ...19 4 508 91 588 18 4 482 86 463 17 4 455 81 662 16 4 426 77 162 15 4 397 72 940 14 4 367 68 957 13 4 335 65 219 12 4 303 61 711 11 4 269 58 415 10 4 235 55 319 9 4 199 52 392 8 4 162 49 640 7 4 124 47 052 6 4 085 44 617 5 4 044 42 324 4 4 003 40 153 3 3 961 38 109 2 3 917 36 182 1 3 873 34 367 0 3 828 32 654 1 3 781 31 030 2 3 734 29 498 3 3 686 28 052 4 3 637 26 686 5 3 587 25 396 6 3 537 24 171 ...

Page 90: ... modes This value is read at the supply air thermistor location or at cooling coil thermistor array if unit is equipped with hydronic heating coil Run Status VIEW LAT Displays the current leaving air temperature during Vent and Hydronic Heating modes This value is read at the supply air thermistor location Run Status VIEW EC C P Displays the current econo mizer control point value a target value f...

Page 91: ...91 Fig 13 IGC Service Analysis Logic LEGEND NOTE Thermostat Fan Switch in the AUTO position IDM Induced Draft Motor IGC Integrated Gas Unit Controller ...

Page 92: ...PLU This is a control variable used for High Temp Override H TMP and Slow Change Override SLOW Y PLU ADD R 0 4375 Cap Threshold Subtracting Z MIN This parameter is used in the calculation of SMZ and is calculated as follows Z MIN Configuration COOL Z GN 10 4 SUB R 0 6 Cap Threshold Adding Z PLU This parameter is used in the calculation of SMZ and is calculated as follows Z PLU Configuration COOL Z...

Page 93: ...FONSTAT DISA CLOF Cool Mode Not In Effect YES NO COOL_OFF DISA OAQL OAQ Lockout in Effect YES NO OAQLOCKD DISA HELD Econ Recovery Hold Off YES NO ECONHELD DISA DH DS Dehumid Disabled Econ YES NO DHDISABL O AIR OUTSIDE AIR INFORMATION O AIR OAT Outside Air Temperature dF OAT forcible O AIR OA RH Outside Air Rel Humidity OARH forcible O AIR OA E Outside Air Enthalpy OAE O AIR OA D T OutsideAir Dewpo...

Page 94: ... attempts to recover have occurred and failed These alerts will be accessible in the alarm history of the control Alarms HIST All the alarms and alerts are summarized in Table 86 ITEM EXPANSION RANGE UNITS POINT WRITE STATUS LINK CCN LINKAGE MODE Linkage Active CCN ON OFF MODELINK L Z T Linkage Zone Control Tmp dF LZT L C SP Linkage Curr Cool Setpt dF LCSP L H SP Linkage Curr Heat Setpt dF LHSP IT...

Page 95: ...it shut down Automatic then manual after 3 strikes T134 High Discharge Pressure Circuit A Circuit staged down Automatic then manual after 3 strikes T135 High Discharge Pressure Circuit B Circuit staged down Automatic then manual after 3 strikes T136 Compressor A1 low differential pressure Circuit shut down Manual T137 Compressor A2 low differential pressure Circuit shut down Manual T138 Compressor...

Page 96: ...24 IGV Actuator Comm Fail Daughter Board MFT No IGV functions Automatic T630 Humidifier Actuator Out of Calibration Alert only Automatic T631 Humidifier Actuator Communication Failure No humidifer functions Automatic T632 Humidifier Actuator Control Range Increased Alert only Automatic T633 Humidifier Act Overload Setpt Not Reached Alert only Automatic T634 Humidifier Act Comm Fail Daughter Brd MF...

Page 97: ...FF for a period of 4 continuous seconds an alarm is generated These alarms are only moni tored for a period of 10 seconds after the compressor relay has been commanded OFF This is done to facilitate a service tech nician forcing a relay to test a compressor In addition if a compressor stuck failure occurs and the cur rent sensor board reports the compressor and the request off certain diagnostics ...

Page 98: ...rc B Discharge Press exceeded 440 psig Should the discharge pressure read by a discharge pressure transducer exceed 440 psig for any reason the circuit will be stopped which requires a manual reset for recovery The unit high pressure switch should trip before the discharge pressure reaches this value Check for failed a high pressure switch or a discharge pressure transducer out of calibration T130...

Page 99: ...amage to the RS 485 driv ers on the LEN bus T172 Control Expansion Module Comm Failure Any function associated with a sensor configured for use that re sides on the controls expansion module will be disabled until communication is re established Recovery is automatic Rea son for failure may be due to incorrect wiring power loss to the control expansion module or damage to the RS 485 drivers on the...

Page 100: ...5 Return Air Temperature Above Limit If the return air temperature is below the RAT HI Alert Limit Occ Configu ration ALLM RA H O for 5 minutes or RAT HI Alert Limit Occ Configuration ALLM RA H U for 10 minutes then an alert will be broadcast The alert will automatically reset T308 Return Air Relative Humidity Below Limit If the unit is configured to use a return air relative humidity sensor throu...

Page 101: ...he same failure The only difference between the alarm and alert is that in the case where the supply fan status configuration to shut down the unit is set to YES Configuration UNIT SFS S the alarm will be generated AND the unit will be shut down It is possible to configure Configuration UNIT SFS M to either a switch or to monitor a 0 2 in wg rise in duct pressure if the unit is VAV with duct press...

Page 102: ...ble and any functions associated with the particular actuator are shut down Recovery is automatic but this error will probably require actuator replacement as this problem is internal to the Belimo actuator itself A700 Air Temp Lvg Supply Fan Thermistor Failure The failure of this sensor will shut the system down and gener ate an alarm as this thermistor is a critical component to funda mental ope...

Page 103: ...103 Fig 15 Typical Power Schematic Sizes 030 050 Shown a48 8408 ...

Page 104: ...104 Fig 16 Main Base Board Input Output Connections a48 8409 ...

Page 105: ...105 Fig 17 RCB ECB CEM SCB Input Output Connections a48 8410 ...

Page 106: ...106 Fig 18 Typical Gas Heat Unit Control Wiring 48Z055 105 Units Shown a48 8411 ...

Page 107: ...107 Fig 19 Typical Electric Heat Unit Control Wiring 50Z055 105 Units Shown a50 8248 ...

Page 108: ...108 Fig 20 Typical Power Wiring 115 V 48Z Units a48 8412 ...

Page 109: ...109 Fig 21 Typical Power Wiring 115 V 50Z Units a50 8249 ...

Page 110: ...110 Fig 22 Typical Gas Heat Section Size 055 105 Units Shown a48 8413 ...

Page 111: ...111 Fig 23 Component Arrangement Size 030 050 Units ...

Page 112: ...112 Fig 24 Component Arrangement Size 055 070 Units ...

Page 113: ...113 Fig 25 Component Arrangement Size 075 105 Units ...

Page 114: ...ansducer ECB Economizer Control Board ECON Economizer EQUIP Equipment FU Fuse GND Ground GVR Gas Valve Relay HC Heater Contactor HIR Heat Interlock Relay HPS High Pressure Switch HS Hall Effect Sensor HV High Voltage I Ignitor IAQ Indoor Air Quality IDM Induced Draft Motor IFC Indoor Fan Contactor IFCB Indoor Fan Circuit Breaker IFM Indoor Fan Motor IGC Integrated Gas Controller IGV Inlet Guide Va...

Page 115: ...ure AN5 J8 9 10 9 thermistor ohms SAT Air Temp Lvg Supply Fan AN6 J8 11 12 11 thermistor ohms OAT Outside Air Temperature AN7 J8 13 14 13 thermistor ohms SPT Space Temperature AN8 J8 1 2 1 thermistor ohms SPTO Space Temperature Offset AN9 J8 3 4 3 thermistor ohms IAQ IAQ PPM Return CO2 IAQANCFG 1 2 AN10 J8 5 6 5 thermistor ohms IAQINMOV 4 20ma 10k pot MinPosOver IAQANCFG 3 4 AN10 J8 5 6 5 thermist...

Page 116: ... 24VAC 1 0VAC 0 NA DI6 J4 11 12 12 24VAC 1 0VAC 0 SACFM Supply Air CFM AN1 J5 1 3 1 24VDC 2 0 20mA in 3 GND 0 20mA RACFM Return Air CFM AN2 J5 4 6 4 24VDC 5 0 20mA in 6 GND 0 20mA NA AN3 J6 1 2 1 thermistor ohms NA AN4 J6 3 4 3 thermistor ohms NA AN5 J6 5 6 5 thermistor ohms NA AN6 J6 7 8 7 thermistor ohms OUTPUTS EFAN_VFD Exhaust Fan VFD Speed AO1 J9 1 2 1 0 20mA 2 GND 0 20mA OUT PP MP J7 1 3 1 P...

Page 117: ... and a majority of the field installed accessories See Table 92 The circuit breakers for the low voltage control transformers interface connection for the Carrier Comfort Network CCN communication and interface connection for the Local Equip ment Network LEN communication are also located on the low voltage terminal strip INTEGRATED GAS CONTROL IGC One IGC is pro vided with each bank of gas heat e...

Page 118: ...CFM AN7 J6 1 3 2 1 loop power 0 20mA input OARH Outside Air Rel Humidity AN8 J6 4 6 5 4 loop power 0 20mA input SPRH Space Relative Humidity AN9 J6 7 9 8 7 loop power 0 20mA input RARH Return Air Rel Humidity AN10 J6 10 12 11 10 loop power 0 20mA input DMDLMTMA 4 20ma Demand Signal AN1 J5 1 2 1 thermistor ohms EDTRESMA EDT Reset milliampere AN2 J5 3 4 3 thermistor ohms OAQ OAQ PPM Return CO2 AN3 J...

Page 119: ...Output external contact maximum 24 vac 3 A 13 Smoke Detector Alarm Input external contact maximum 24 vac 3 A 14 Smoke Detector Alarm Input external contact maximum 24 vac 3 A 15 Not Used 16 Not Used TB202 THERMOSTAT CONNECTIONS in Main Control Box TB202 1 Thermostat R 24 vac output 2 Thermostat G 24 vac input 3 Thermostat W2 24 vac input 4 Thermostat W1 24 vac input 5 Thermostat Y2 24 vac input 6 ...

Page 120: ...di rectly by the ComfortLink controls through a 4 to 20 mA signal based on a supply duct pressure sensor The VFD has a display which can be used for service diagnostics but setup of the building pressure and control loop factors should be done through the scrolling marquee display The VFD is powered during normal operation to prevent condensation from forming on the boards during the off mode and ...

Page 121: ...rt up The motor s is located on the economizer and can be reached through the filter access door THERMISTORS AND PRESSURE TRANSDUCERS The unit is equipped with several thermistors for measurement of temperatures The thermistors are summarized in Table 95 The units have two pressure transducers that are connected to the low side of the system These two pressure transducers measure the low side pres...

Page 122: ...rd If the other methods are to be used then a field installed humidity sensor must be installed for outdoor air enthalpy and customer curve control and two humidity sensors must be installed for differential enthalpy Installation holes are pre drilled and wire harnesses are installed in every unit for connection of the humidity sensors The ComfortLink controls have the capability to convert the me...

Page 123: ...r the negative and signal ground pins of each system element Wiring connections for CCN should be made at the COMM board See Fig 16 Consult the CCN Contrac tor s Manual for further information NOTE Conductors and drain wire must be 20 AWG American Wire Gage minimum stranded tinned copper Individual conductors must be insulated with PVC PVC nylon vinyl Teflon or polyethylene An aluminum polyester 1...

Page 124: ...R VOLUME CONTROL DAV DAV FAN POWERED MIXING BOX TO ADDITIONAL TERMINALS HEATING COOLING UNITS BUILDING SUPERVISOR ROOFTOP UNIT CL ROOFTOP UNIT CL ROOFTOP UNIT CL ROOFTOP UNIT CL CCN BUS CL COMFORT CONTROLLER LEGEND CCN Carrier Comfort Network CL ComfortLink Controls DAV Digital Air Volume HVAC Heating Ventilation and Air Conditioning TCU Terminal Control Unit Fig 33 CCN System Architecture ...

Page 125: ...ginning of each heating season inspect for deterioration due to corrosion or other causes Observe the main burner flames and adjust if nec essary See Gas System Adjustment section on page 131 FLUE GAS PASSAGEWAYS 48Z Only The flue col lector box and heat exchanger cells may be inspected by removing heat exchanger access panel flue box cover and main burner assembly Fig 39 Refer to Main Burners Rem...

Page 126: ...odulating Power Exhaust Motor Access Both Sides NOTE High heat consists of sections 1 and 2 Low heat consists of section 1 only Fig 37 Gas Section Detail Sizes 030 050 NOTE High heat consists of sections 1 3 Low heat consists of sec tions 1 and 2 only Fig 38 Gas Section Detail Sizes 055 105 ...

Page 127: ...NOTE One baffle and clip will be in each upper tube of the heat exchanger Fig 40 Removing Heat Exchanger Ceramic Baffles and Clips INLET GUIDE VANE MOTOR Fig 41 Combustion Blower Removal Fig 42A Inlet Guide Vane Motor Sizes 055 070 Fig 42B Inlet Guide Vane Motor Sizes 075 105 ...

Page 128: ...er belt life the motor and fan pulleys must be properly aligned To check first turn off unit power Place a straightedge against the motor and fan pulleys See Fig 45 If the pulleys are properly aligned the straightedge should be parallel to the belts If they are not parallel check that the motor shaft and fan shaft are parallel If they are not adjust the motor plate adjust ing bolts until they are ...

Page 129: ...h pressure ports open to atmosphere adjust the Zero Z screw potentiometer on the transducer and read the multimeter until the desired current output at 0 in wg pressure is obtained see Fig 48 6 Reinstall the transducer in the unit 7 Restore power to the unit Cleaning Inspect unit at the beginning of each heating and cooling season and during each season as operating condi tions may require Clean c...

Page 130: ... service valve before charging Weigh in charge shown in unit nameplate Open liquid line service valve start unit and allow it to run several minutes fully loaded Check for a clear sight glass Be sure clear condition is liquid and not vapor Complete charging the unit Charging with Unit Running If charge is to be added while unit is operating it is necessary to have all condenser fans and compressor...

Page 131: ... sign of moisture in the sys tem See Carrier Charging Handbook for more information Filter Drier Replace whenever the moisture liquid indi cator shows moisture in the system Liquid Line Service Valve Located immediately ahead of the filter drier this valve has a 1 4 in flare connection for field charging With the liquid circuit shut the compressor can be used to pump the refrigerant down into the ...

Page 132: ...a tion and prevents the limit from tripping while the unit is oper ating at low airflow ROLLOUT SWITCH This switch senses any flame or ex cessive heat in the main burner compartment and deenergizes the gas valve If this occurs the gas heating system is locked out 7 flashes on IGC board until the rollout switch is reset manually Reset rollout switch manually by powering down and powering up of the ...

Page 133: ...TOTAL 92 93 CUR S Current Cool Stage COOL_STG 92 93 REQ S Requested Cool Stage CL_STAGE 92 93 MAX S Maximum Cool Stages CLMAXSTG 92 93 DEM L Active Demand Limit DEM_LIM forcible 92 93 SUMZ COOL CAP STAGE CONTROL SUMZ SMZ Capacity Load Factor 100 100 SMZ 92 93 SUMZ ADD R Next Stage EDT Decrease F ADDRISE 92 93 SUMZ SUB R Next Stage EDT Increase F SUBRISE 92 93 SUMZ R PCT Rise Per Percent Capacity R...

Page 134: ...CANG 37 IGV M VFD IGV Maximum Speed 0 100 STATPMAX 37 BP1 C BP 1 Command Position 0 100 BLDG1TST 37 B1 CL BP 1 Actuator Cal Cmd YES NO BLDG1CAL 37 BP1 A BP Act 1 Control Angle read only BP1_CANG 37 BP1 M BP 1 Actuator Max Pos 0 100 BP1SETMX 37 BP2 C BP 2 Command Position 0 100 BLDG2TST 37 B2 CL BP 2 Actuator Cal Cmd YES NO BLDG2CAL 37 BP2 A BP Act 2 Control Angle read only BP2_CANG 37 BP2 M BP 2 A...

Page 135: ...CT B Cir B Sat Condensing Tmp dF SCTB SST B Cir B Sat Suction Temp dF SSTB ITEM EXPANSION RANGE UNITS CCN POINT WRITE STATUS AIR P AIR PRESSURES SP Static Pressure H2O SP BP Building Pressure H2O BP REF P REFRIGERANT PRESSURES DP A Cir A Discharge Pressure PSIG DP_A SP A Cir A Suction Pressure PSIG SP_A DP B Cir B Discharge Pressure PSIG DP_B SP B Cit B Suction Pressure PSIG SP_B ITEM EXPANSION RA...

Page 136: ...ostat Y2 Input ON OFF Y2 forcible FIRE FIRE SMOKE INPUTS FSD Fire Shutdown Input ALRM NORM FSD forcible PRES Pressurization Input ALRM NORM PRES forcible EVAC Evacuation Input ALRM NORM EVAC forcible PURG Smoke Purge Input ALRM NORM PURG forcible REL H RELATIVE HUMIDITY OA RH Outside Air Rel Humidity OARH forcible OA EN Outdoor Air Enthalpy OAE OA DP OutsideAir Dewpoint Temp dF OADEWTMP RA RH Retu...

Page 137: ...ings FAN_MODE 1 44 RM CF Remote Switch Config 0 3 multi text strings RMTINCFG 0 44 CEM CEM Module Installed Yes No CEM_BRD No 44 TCS C Temp Cmp Strt Cool Factr 0 60 min TCSTCOOL 0 44 TCS H Temp Cmp Strt Heat Factr 0 60 min TCSTHEAT 0 44 SFS S Fan Fail Shuts Down Unit Yes No SFS_SHUT No 44 SFS M Fan Stat Monitoring Type 0 2 multi text strings SFS_MON 0 44 VAV S VAV Unocc Fan Retry Time 0 720 min SA...

Page 138: ...0 00 2 00 SPRLIMIT 0 75 62 SP EC SP Reset Econo Position 0 100 ECONOSPR 5 62 63 S PID STAT PRESS PID CONFIGS S PID SP TM Stat Pres PID Run Rate 5 120 SPIDRATE 15 62 63 S PID SP P Static Press Prop Gain 0 5 STATP_PG 0 5 62 63 S PID SP I Static Pressure Intg Gain 0 2 STATP_IG 0 5 62 63 S PID SP D Static Pressure Derv Gain 0 5 STATP_DG 0 3 62 63 ACT C IGV ACTUATOR CONFIGS ACTC SN 1 IGV Serial Number ...

Page 139: ...l Lo Heat On 1 2 F DMDLHON 1 5 48 55 56 H H ON Dmd Level Hi Heat On 0 5 20 0 F DMDHHON 0 5 48 55 56 L H OF Dmd Level Lo Heat Off 0 5 2 0 F DMDLHOFF 1 48 55 56 L C ON Dmd Level Lo Cool On 1 2 F DMDLCON 1 5 48 49 55 H C ON Dmd Level Hi Cool On 0 5 20 0 F DMDHCON 0 5 48 49 55 L C OF Dmd Level Lo Cool Off 0 5 2 0 F DMDLCOFF 1 48 49 55 C T LV Cool Trend Demand Level 0 1 5 0 F CTRENDLV 0 1 48 49 55 H T ...

Page 140: ... SP L U SPT lo alert limit unocc 10 245 dF SPLU 45 80 81 SP H U SPT hi alert limit unocc 10 245 dF SPHU 100 80 81 SA L O EDT lo alert limit occ 40 245 dF SALO 40 80 81 SA H O EDT hi alert limit occ 40 245 dF SAHO 100 80 81 SA L U EDT lo alert limit unocc 40 245 dF SALU 40 80 81 SA H U EDT hi alert limit unocc 40 245 dF SAHU 100 80 81 RA L O RAT lo alert limit occ 40 245 dF RALO 60 80 81 RA H O RAT...

Page 141: ... 0 31 HOL_DAY1 84 85 HD 01 LEN Duration Days 0 99 HOL_LEN1 84 85 Repeated for holidays 2 to 30 84 85 DAY S DAYLIGHT SAVINGS TIME DS ST DAYLIGHT SAVINGS START 84 85 DS ST ST MN Month 1 12 STARTM 4 84 85 DS ST ST WK Week 1 5 STARTW 1 84 85 DS ST ST DY Day 1 7 STARTD 7 84 85 DS ST MIN A Minutes to Add 0 90 MINADD 60 84 85 DS SP DAYLIGHTS SAVINGS STOP DS SP SP MN Month 1 12 STOPM 10 84 85 DS SP SP WK ...

Page 142: ...sure PSIG DP_A Cir A Suction Pressure PSIG SP_A Cir A Sat Condensing Tmp dF SCTA Cir A Sat Suction Temp dF SSTA Compressor A1 Relay CMPA1 Unloader 1 Comp A1 UNL_1_A1 Unloader 2 Comp A1 UNL_2_A1 Compressor A2 Relay CMPA2 Compressor A1 Feedback CSB_A1 Compressor A2 Feedback CSB_A2 Circ A High Press Switch CIRCAHPS Circuit A Stage Inhibit CIRAFAIL COOL_B Current Cool Stage COOL_STG Current Cool Stage...

Page 143: ...gs Heat Control Type ascii text strings Re Heat Control Type ascii text strings Heating Mode ascii text strings Requested Heat Stage HT_STAGE Ht Coil Act Current Pos HTCLRPOS Heating Control Point dF HEATCPNT Heat Relay 1 HS1 Heat Relay 2 HS2 Relay 3 W1 Gas Valve 2 HS3 Relay 4 W2 Gas Valve 2 HS4 Relay 5 W1 Gas Valve 3 HS5 Relay 6 W2 Gas Valve 3 HS6 Heat Interlock Relay HIR forcible MODEDISP System...

Page 144: ...it Switch 2 On Off DMD_SW2 forcible Pressurization Input Alarm Normal PRES forcible Evacuation Input Alarm Normal EVAC forcible Smoke Purge Input Alarm Normal PURG forcible IAQ Discrete Input High Low IAQIN forcible Dehumidify Switch Input On Off DHDISCIN forcible UOUTPUTS FANS Supply Fan Relay On Off SFAN Supply Fan VFD Speed 0 100 SFAN_VFD Supply Fan Request Yes No SFANFORC forcible Exhaust Fan ...

Page 145: ...OARHBC Off CCN OAQ Broadcast Off On OAQBC Off Global Schedule Broadcst Off On GSBC Off Daylight Savings Start Month 1 12 STARTM 4 Week 1 5 STARTW 1 Day 1 7 STARTD 7 Minutes to Add 0 90 MINADD 60 Daylight Savings Stop Month 1 12 STOPM 10 Week 1 5 STOPW 5 Day 1 7 STOPD 7 Minutes to Subtract 0 90 MINSUB 60 Ctlr ID Device Name Z Series Description Z Series Rooftop Location Software Part Number CESR131...

Page 146: ...EDT hi alert limit unocc 40 245 dF SAHU 100 RAT lo alert limit occ 40 245 dF RALO 60 RAT hi alert limit occ 40 245 dF RAHO 90 RAT lo alert limit unocc 40 245 dF RALU 40 RAT hi alert limit unocc 40 245 dF RAHU 100 OAT lo alert limit 40 245 dF OATL 40 OAT hi alert limit 40 245 dF OATH 150 RARH low alert limit 0 100 RRHL 0 RARH high alert limit 0 100 RRHH 100 OARH low alert limit 0 100 ORHL 0 OARH hi...

Page 147: ...able CSB_B1EN Enable CSB B2 Feedback Alarm Enable Disable CSB_B2EN Enable CMPA1 Hi Pr Sw Trip 365 415 PSIG HPSATRIP 415 CMPB1 Hi Pr Sw Trip 365 415 PSIG HPSBTRIP 415 Hi SST Alert Delay Time 5 30 min HSSTTIME 10 DEHU Dehumidification Config 0 3 DHSELECT 0 Dehumidification Sensor 1 3 DHSENSOR 1 Econ disable in DH mode Yes No DHECONEN No Vent Reheat Setpt Select 0 1 DHVHTCFG 0 Vent Reheat RAT offset ...

Page 148: ...Reset Input Enable Disable EDTRSENS Disable HEAT Heating Control Type 0 4 HEATTYPE 0 Heating Supply Air Setpt 80 120 dF SASPHEAT 85 Occupied Heating Enabled Yes No HTOCCENA No MBB Sensor Heat Relocate Yes No HTLATMON No Staged Gas Heat Type 0 4 HTSTGTYP 0 Max Cap Change per Cycle 5 45 HTCAPMAX 45 S Gas DB min dF PID Rate 0 5 HT_MR_DB 0 5 St Gas Temp Dead Band 0 5 F HT_SG_DB 2 Heat Rise dF sec Clam...

Page 149: ...PMAX 100 VFD IGV Fire Speed Over 0 100 STATPFSO 100 Stat Pres Reset Config 0 4 multi text strings SPRSTCFG 0 SP Reset Ratio 0 00 2 00 SPRRATIO 0 20 SP Reset Limit 0 00 2 00 SPRLIMIT 0 75 SP Reset Econo Position 0 100 ECONOSPR 5 Stat Pres PID Run Rate 5 120 sec SPIDRATE 15 Static Press Prop Gain 0 5 STATP_PG 0 5 Static Press Intg Gain 0 2 STATP_IG 0 5 Static Press Derv Gain 0 5 STATP_DG 0 3 IGV Ser...

Page 150: ...CII POINT_07 POINT_08 Definition 8 CHAR ASCII POINT_08 POINT_09 Definition 8 CHAR ASCII POINT_09 POINT_10 Definition 8 CHAR ASCII POINT_10 POINT_11 Definition 8 CHAR ASCII POINT_11 POINT_12 Definition 8 CHAR ASCII POINT_12 POINT_13 Definition 8 CHAR ASCII POINT_13 POINT_14 Definition 8 CHAR ASCII POINT_14 POINT_15 Definition 8 CHAR ASCII POINT_15 POINT_16 Definition 8 CHAR ASCII POINT_16 POINT_17 ...

Page 151: ...DP Trp 103 28 DPFLMb_T config DMANDLIM Active Demand Limit 0 100 DEM_LIM forcible Percent Total Capacity 0 100 CAPTOTAL Demand Limit Select 0 3 DMD_CTRL config Demand Limit Switch 1 On Off DMD_SW1 forcible Demand Limit Switch 2 On Off DMD_SW2 forcible Demand Limit Sw 1 Setpt 0 100 DLSWSP1 config Demand Limit Sw 2 Setpt 0 100 DLSWSP2 config 4 20 ma Demand Signal 4 20 ma DMDLMTMA forcible Demand Lim...

Page 152: ...ge Tmp dF EDT Economizer Control Point dF ECONCPNT EDT Trend in degF minute F EDTTREND Economizer Prop Gain EC_PGAIN config Economizer Range Adjust F EC_RANGE config Economizer Speed Adjust EC_SPEED config Economizer Deadband F EC_DBAND config Economizer Timer sec ERATETMR config ENTHALPY Outdoor Air Enthalpy OAE Outside Air Temperature dF OAT forcible Outside Air Rel Humidity OARH forcible Outsid...

Page 153: ...st Unoccupied Day LLASTUOD Last Unoccupied Time LLASTUNC MILLIAMP IAQ milliamps ma IAQ_MA OAQ milliamps ma OAQ_MA SP Reset milliamps ma SPRST_MA 4 20 ma Demand Signal ma DMDLMTMA forcible EDT Reset milliamps ma EDTRESMA OARH milliamps ma OARH_MA SPRH milliamps ma SPRH_MA RARH milliamps ma RARH_MA SACFM milliamps ma SACFM_MA RACFM milliamps ma RACFM_MA OACFM milliamps ma OACFM_MA BP milliamps ma BP...

Page 154: ...LAT_SGAS Staged Gas LAT 1 dF LAT1SGAS Staged Gas LAT 2 dF LAT2SGAS Staged Gas LAT 3 dF LAT3SGAS Staged Gas Limit Sw Temp dF LIMSWTMP Heat PID Timer sec HTSGTIMR Staged Gas Capacity Calc HTSGCALC Current Running Capacity HTSG_CAP Proportional Cap Change HTSG_P Derivative Cap Change HTSG_D Maximum Heat Stages HTMAXSTG Hi Limit Switch Tmp Mode LIMTMODE LAT Cutoff Mode LATCMODE Capacity Clamp Mode CAP...

Page 155: ...no Damper Command Pos 0 100 ECONCOOL Static Pressure Setpoint 0 5 H2O SPSP_TST Requested Cool Stage 0 n CLST_TST Lead Lag Select Test LEAD LAG LL_TST Compressor A1 Relay ON OFF CMPA1TST Unloader 1 Comp A1 ON OFF UNL1_TST Unloader 2 Comp A1 ON OFF UNL2_TST Compressor A2 Relay ON OFF CMPA2TST Compressor B1 Relay ON OFF CMPB1TST Unloader 1 Comp B1 ON OFF UNL3_TST Unloader 2 Comp B1 ON OFF UNL4_TST Co...

Page 156: ...2 3 0 0 0 0 1 0 0 0 50 4 1 1 1 0 1 0 0 0 66 5 1 1 0 0 1 0 0 0 82 6 1 0 0 0 1 0 0 0 100 0 Off a b Compressor Circuit Designation 1 On u Unloader CIRCUIT A STAGE COMPRESSOR OR UNLOADER PERCENT a1 u1 u2 a2 b1 u3 u4 b2 Lead 0 0 0 0 0 0 0 0 0 0 1 1 1 0 0 0 0 0 0 29 2 1 1 0 0 1 1 1 0 43 3 1 1 0 0 1 1 0 0 57 4 1 0 0 0 1 1 1 0 71 5 1 0 0 0 1 1 0 0 85 6 1 0 0 0 1 0 0 0 100 Lag 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0...

Page 157: ...0 0 0 0 0 0 0 1 0 0 0 0 1 1 0 0 22 2 0 0 0 0 1 0 0 0 43 3 1 1 0 0 1 1 0 0 59 4 1 1 1 0 1 0 0 0 62 5 1 1 0 0 1 0 0 0 80 6 1 0 0 0 1 1 0 0 89 7 1 0 0 0 1 0 0 0 100 0 Off a b Compressor Circuit Designation 1 On u Unloader CIRCUIT A STAGE COMPRESSOR OR UNLOADER PERCENT a1 u1 u2 a2 b1 u3 u4 b2 Lead 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 19 2 1 1 0 0 0 0 0 0 37 3 1 0 0 0 0 0 0 0 57 4 1 1 1 0 1 0 0 0 62 5...

Page 158: ...1 0 0 0 100 0 Off a b Compressor Circuit Designation 1 On u Unloader CIRCUIT A STAGE COMPRESSOR OR UNLOADER PERCENT a1 u1 u2 a2 b1 u3 u4 b2 Lead 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 17 2 1 1 0 0 0 0 0 0 33 3 1 0 0 0 0 0 0 0 50 4 1 0 0 0 1 1 1 0 67 5 1 0 0 0 1 1 0 0 83 6 1 0 0 0 1 0 0 0 100 Lag 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 17 2 0 0 0 0 1 1 0 0 33 3 0 0 0 0 1 0 0 0 50 4 1 1 1 0 1 0 0 0 67 ...

Page 159: ...u2 a2 b1 u3 u4 b2 Lead 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 17 2 1 1 0 0 0 0 0 0 33 3 1 0 0 0 0 0 0 0 50 4 1 0 0 0 1 1 1 0 67 5 1 0 0 0 1 1 0 0 83 6 1 0 0 0 1 0 0 0 100 Lag 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 1 1 0 17 2 0 0 0 0 1 1 0 0 33 3 0 0 0 0 1 0 0 0 50 4 1 1 1 0 1 0 0 0 67 5 1 1 0 0 1 0 0 0 83 6 1 0 0 0 1 0 0 0 100 0 Off a b Compressor Circuit Designation 1 On u Unloader CIRCUIT A STAGE COMPRE...

Page 160: ... from forming on the boards during the off mode and is stopped by driving the speed to 0 by sending a 4 mA signal to the VFD The Z Series units use ABB VFDs The interface wiring for the VFDs is shown in Fig A The VFD connects through an isolation board to the 4 to 20 mA RCB board Terminal designations are shown in Table A Configurations are shown in Table B Table A VFD Terminal Designations TERMIN...

Page 161: ... to local hand held control The HELP button is used to access the help screens PARAMETER GROUP PARAMETER TITLE PARAMETER INDEX CARRIER DEFAULT Start Up Data LANGUAGE 9901 ENGLISH APPLIC MACRO 9902 USER 1 MOTOR CTRL MODE 9904 SCALAR FREQ MOTOR NOM VOLT 9905 460v MOTOR NOM CURR 9906 TBD MOTOR NOM FREQ 9907 60 Hz MOTOR NOM SPEED 9908 1750 rpm Start Stop Dir EXT1 COMMANDS 1001 DI 1 DIRECTION 1003 REVE...

Page 162: ...standard display mode press EXIT until the LCD display shows status information as described below See Fig C The top line of the LCD display shows the basic status information of the drive The HAND icon indicates that the drive control is local from the control panel The AUTO icon indicates that the drive is in remote control mode such as the basic I O X1 or field bus The arrow icon indicates the ...

Page 163: ...ves of different sizes Parameters 9905 9906 9907 9908 9909 1605 1607 5201 and group 51 parameters and internal motor parameters are not copied Upload All Parameters To upload and store parameters in the control panel from the VFD perform the following procedure 1 Select MENU SOFT KEY 2 The Main menu will be displayed 2 Use the UP or DOWN keys to highlight PAR BACKUP on the display screen and press...

Page 164: ...ess EXIT SOFT KEY 1 twice to return to the main menu Third Party Controls For conversion to third party control of the VFD perform the following procedure 1 Remove the factory installed jumper between X1 10 and X1 13 control of VFD start stop 2 Remove the factory installed jumper between X1 10 and X1 16 and replace with a normally closed safety contact for control of VFD start enable 3 Install spe...

Page 165: ...AXIMUM SPEED parameters Check parameter settings for 2001 and 2002 Check adequacy of motor braking torque Check applicability of torque control Check brake chopper and resistor 25 RESERVED Not used 26 DRIVE ID Internal fault Configuration block drive ID is not valid 27 CONFIG FILE Internal configuration file has an error Contact Carrier 28 SERIAL 1 ERR Field bus communication has timed out Check f...

Page 166: ...Alarm Fault operation 3001 2008 PANEL LOSS Panel communication is lost and either the VFD is in local control mode the control panel displays HAND or the VFD is in remote control mode AUTO and is parameterized to accept start stop direction or reference from the control panel To correct check the communication lines and connections Parameter 3002 PANEL LOSS and parameters in groups 10 COMMAND INPU...

Page 167: ...t tempera tures and drive loads Fan failure can be predicted by the increasing noise from fan bearings and the gradual rise in the heat sink temperature in spite of heat sink cleaning If the drive is operated in a critical part of a process fan replacement is recommended once these symptoms start appearing Replacement fans are available from Carrier To replace the main fan for frame sizes R1 throu...

Page 168: ...rnal enclosure fan for frame sizes R5 or R6 perform the following 1 Remove power from drive 2 Remove the front cover 3 Lift the fan out and disconnect the cable 4 Install the fan in reverse order 5 Restore power CONTROL PANEL CLEANING Use a soft damp cloth to clean the control panel Avoid harsh cleaners which could scratch the display window BATTERY REPLACEMENT A battery is only used in as sistant...

Page 169: ...Trip Else If Configured for static pressure control Configuration SP SP CF 1 2 and the static pressure sensor Pressures AIR P SP fails HVAC mode Static Pres Fail OFF Else If Configured for supply fan status monitoring Configuration UNIT SFS M 1 2 and configured to shut the unit down on fan status fail Configuration UNIT SFS S YES HVAC mode Fan Status Fail OFF Else If Configured for return fan trac...

Page 170: ... is a normal heating mode when a low heating demand exists HVAC mode Unocc Free Cool In this mode the unit will operate in cooling but will be using the economizer for free cooling Entering this mode will depend on the status of the outside air The unit can be configured for outside air changeover differential dry bulb changeover outside air enthalpy changeover differential enthalpy changeover or ...

Page 171: ...83 Humidification 76 HVAC modes 41 Hydronic heating control 56 Independent outputs 38 Indoor air quality control 73 Indoor air quality options 34 Internal wiring 7 Liquid line service valve 131 Local display tables 133 141 Lubrication 130 Major system components 102 124 Mode selection process 169 170 Mode trip helper 92 Modes 40 Moisture liquid indicator 131 Multi stage constant volume units with ...

Page 172: ...o discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480039 01 Printed in U S A Form 48 50Z 5T Pg 172 7 08 Replaces 48 50Z 4T Copyright 2008 Carrier Corporation ...

Page 173: ...able SENS SP O R Space Temp Offset Range 1 10 5 SENS SRH S Space Air RH Sensor Enable Disable Disable SENS RRH S Return Air RH Sensor Enable Disable Disable SENS FLT S Filter Stat Sw Enabled Enable Disable Disable COOL COOLING CONFIGURATION Z GN Capacity Threshold Adjst 10 10 1 MC LO Compressor Lockout Temp 25 55 dF 40 L L EN Lead Lag Operation Yes No No M M Motor Master Control Yes No No HPSP Hea...

Page 174: ... HEAT ACTUATOR CFGS HH CF ACTC SN 1 Hydronic Ht Serial Num 1 0 255 0 HH CF ACTC SN 2 Hydronic Ht Serial Num 2 0 255 0 HH CF ACTC SN 3 Hydronic Ht Serial Num 3 0 255 0 HH CF ACTC SN 4 Hydronic Ht Serial Num 4 0 255 0 HH CF ACTC SN 5 Hydronic Ht Serial Num 5 0 255 0 HH CF ACTC C A LM Hydr Ht Ctl Ang Lo Limit 0 90 85 SP SUPPLY STATIC PRESS CFG SP CF Static Pressure Config 0 2 multi text strings 0 SP ...

Page 175: ...ree Cool Cfg 0 2 multi text strings 0 UEFC FC TM Unoc Econ Free Cool Time 0 720 min 120 UEFC FC L O Un Ec Free Cool OAT Lock 40 70 dF 50 ACT C ECON ACTUATOR CONFIGS ACTC SN 1 1 Econ Serial Number 1 0 255 0 ACTC SN 1 2 Econ Serial Number 2 0 255 0 ACTC SN 1 3 Econ Serial Number 3 0 255 0 ACTC SN 1 4 Econ Serial Number 4 0 255 0 ACTC SN 1 5 Econ Serial Number 5 0 255 0 ACTC C A L1 Econ Ctrl Angle Lo...

Page 176: ...5 0 ACT C BP 2 SN 4 BP 2 Serial Number 4 0 255 0 ACT C BP 2 SN 5 BP 2 Serial Number 5 0 255 0 ACT C BP 2 C A LM BP2 Cntrl Angle Lo Limit 0 90 35 D LV T COOL HEAT SETPT OFFSETS L H ON Dmd Level Lo Heat On 1 2 F 1 5 H H ON Dmd Level Hi Heat On 0 5 20 0 F 0 5 L H OF Dmd Level Lo Heat Off 0 5 2 0 F 1 0 L C ON Dmd Level Lo Cool On 1 2 F 1 5 H C ON Dmd Level Hi Cool On 0 5 20 0 F 0 5 L C OF Dmd Level Lo...

Page 177: ...ifier Prop Gain 0 5 1 H PID HM I Humidifier Integral Gain 0 5 0 3 H PID HM D Humidifier Deriv Gain 0 5 0 3 ACT C HUMIDIFIER ACTUATOR CFGS ACTC SN 1 Humd Serial Number 1 0 255 0 ACTC SN 2 Humd Serial Number 2 0 255 0 ACTC SN 3 Humd Serial Number 3 0 255 0 ACTC SN 4 Humd Serial Number 4 0 255 0 ACTC SN 5 Humd Serial Number 5 0 255 0 ACTC C A LM Humd Ctrl Angle Lo Limit 0 90 85 DEHU DEHUMIDIFICATION ...

Page 178: ...t limit 0 5 H2O 2 BP L BP lo alert limit 0 25 0 25 H2O 0 25 BP H BP high alert limit 0 25 0 25 H2O 0 25 IAQ H IAQ high alert limit 0 5000 1200 TRIM SENSOR TRIM CONFIG SAT T Air Temp Lvg SF Trim 10 10 F 0 RAT T RAT Trim 10 10 F 0 OAT T OAT Trim 10 10 F 0 SPT T SPT Trim 10 10 F 0 L SW T Limit Switch Trim 10 10 F 0 CCT T Air Temp Lvg Evap Trim 10 10 F 0 SP A T Suct Press Circ A Trim 50 50 PSIG 0 SP B...

Page 179: ...ONED VERIFY THAT SUCTION DISCHARGE AND LIQUID SERVICE VALVES ON EACH CIRCUIT ARE OPEN VERIFY THAT CRANKCASE HEATERS HAVE BEEN ON 24 HOURS BEFORE START UP START UP ELECTRICAL SUPPLY VOLTAGE L1 L2 __________ L2 L3 __________ L3 L1 __________ COMPRESSOR AMPS COMPRESSOR NO 1 L1 __________ L2 __________ L2 _________ COMPRESSOR AMPS COMPRESSOR NO 2 L1 __________ L2 __________ L2 _________ SUPPLY FANS AM...

Page 180: ...ge at any time specifications or designs without notice and without incurring obligations Catalog No 04 53480039 01 Printed in U S A Form 48 50Z 5T CL 8 7 08 Replaces 48 50Z 4T Copyright 2008 Carrier Corporation CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE ...

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Carrier WEATHERMASTER 48Z030, Operation And Service Manual

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