Carrier 40UV Installation, Start-up And Service Instructions Manual

Also see for 40UV: Installation and service instructions Installation, Start-Up and Service Instructions

23Make Duct Connections — If applicable, install allductwork to and from unit in accordance with all applicablecodes. Duct construction must allow unit to operate within ductexternal static pressure limits as shown on job submittals and inTables 5 and 6. Duct opening should be the same size as theunit. For units ducted to multiple openings, make sure there isadequate straight duct, as shown below, immediately after theunit.Units provided with outside air must utilize the low-temperature safety switch to prevent coil freeze-up.Insulate all ductwork as required. Use flexible connectionsto minimize duct-to-unit alignment problems and noise trans-mission where specified.Install ductwork, grilles, and plenums so that they do notrestrict access to filter.Cut openings for supply and return air grilles, thermostats,and switch plates where specified on job drawings. Be carefulnot to cut wires, piping, or structural supports. Use a steel ther-mostat shield ring to protect drywall from thermostat wiringwhere applicable.Prevent dust and debris from settling in unit. If wall finish orcolor is to be applied by spraying, cover all openings toprevent spray from entering unit.Table 5 — Unit Ventilator Airflow — PSC Motor*LEGEND*Standard on sizes 050-150.NOTE: Use the table below to determine the heating and cooling coilcombinations available with PSC Motor operation.†DX cooling applications are only available in 3-row coolingconfigurations.40UH 075 100 125 150 200Minimum StraightDuct Required(Length in ft)45 52 58 63 75Units designed to operate with ductwork may be damagedif operated without intended ductwork attached.Ensure that units ducted to multiple openings have sufficientstraight duct immediately after the unit.FACTORY SETTINGS — CHILLED WATER COIL APPLICATIONSUnit Speed Approximate Air Delivery (Cfm)1-Row 2-Row 3-Row 4-Row 5-Row 6-Row 7-Row40UV050Max 522 510 497 485 490 489 457High 503 490 476 464 473 476 444Low 458 449 440 425 452 455 43040UV,UH075Max 806 778 750 747 766 732 697High 682 664 645 629 621 596 570Low 569 554 539 527 533 514 49540UV,UH100Max 1064 1033 1001 1013 973 980 967High 662 659 655 642 763 740 717Low 530 519 507 503 498 501 50440UV,UH125Max 1295 1285 1215 1218 1239 1250 1175High 899 930 876 865 852 846 846Low 568 616 597 570 568 558 57340UV,UH150Max 1542 1480 1500 1484 1468 1482 1374High 1071 1068 1065 1034 1033 1031 1013Low 812 801 790 881 848 842 799FACTORY SETTINGS — ELECTRIC HEAT/DX COIL APPLICATIONSUnit Speed Approximate Air Delivery (Cfm)1-Row 2-Row 3-Row 4-Row 5-Row 6-Row 7-Row40UV050Max 522 510 497 485 490 489 457High 503 490 476 464 452 455 430Low 458 449 440 425 410 414 40640UV,UH075Max 806 778 750 747 766 732 697High 682 664 645 629 621 596 570Low 569 554 539 527 533 514 49540UV,UH100Max 1064 1033 1001 1013 973 980 967High 794 788 782 773 857 834 810Low 662 659 655 642 628 620 61140UV,UH125Max 1295 1285 1215 1218 1239 1250 1175High 1055 1040 1024 995 1099 1091 1052Low 738 767 732 719 987 986 96440UV,UH150Max 1542 1480 1500 1484 1468 1482 1374High 1285 1257 1229 1248 1246 1239 1199Low 934 928 922 901 1033 1031 1013CX — Chilled Water ApplicationsDX — Direct ExpansionHW — Hot Water COOLING COIL HEATING COILHW Steam Electric5 Rows CW 1 or 2 rows N/A 3 elements4 Rows CW 3 rows 1 or 2 rows 4 elements3 Rows CW or DX† 4 rows 1 or 2 rows 5 or 6 elements