Make Duct Connections - Carrier 40UV050 Installation, Start-Up And Service Instructions Manual

Make Duct Connections —
ductwork to and from unit in accordance with all applicable
codes. Duct construction must allow unit to operate within duct
external static pressure limits as shown on job submittals and in
Tables 5 and 6. Duct opening should be the same size as the
unit. For 40UH units ducted to multiple openings, allow ade-
quate straight duct, as shown below, immediately after the unit.
40UH 075
Minimum Straight Duct
Required (Length in ft)
Units designed to operate with ductwork may be damaged
if operated without intended ductwork attached.
Ensure that units ducted to multiple openings have sufficient
straight duct immediately after the unit.
FACTORY SETTINGS — CHILLED WATER COIL APPLICATIONS
Unit
40UV050
40UV,UH075
40UV,UH100
40UV,UH125
40UV,UH150
FACTORY SETTINGS — ELECTRIC HEAT/DX COIL APPLICATIONS
Unit
40UV050
40UV,UH075
40UV,UH100
40UV,UH125
40UV,UH150
LEGEND
CX — Chilled Water Applications
DX — Direct Expansion
HW — Hot Water
*Standard on sizes 050-150.
If applicable, install all
100 125 150 200
45 52 58 63 75
Table 5 — Unit Ventilator Airflow — PSC Motor*
Speed
1-row 2-row
Max 522
High 503
Low 458
Max 806
High 682
Low 569
Max 1064 1033
High 662
Low 530
Max 1295 1285
High 899
Low 568
Max 1542 1480
High 1071 1068
Low 812
Speed
1-row 2-row
Max 522
High 503
Low 458
Max 806
High 682
Low 569
Max 1064 1033
High 794
Low 662
Max 1295 1285
High 1055 1040
Low 738
Max 1542 1480
High 1285 1257
Low 934
Units provided with outside air must utilize the low-
temperature safety switch to prevent coil freeze-up.
Insulate all ductwork as required. Use flexible connections
to minimize duct-to-unit alignment problems and noise trans-
mission where specified.
Install ductwork, grilles, and plenums so that they do not re-
strict access to filter.
Cut openings for supply and return air grilles, thermostats,
and switch plates where specified on job drawings. Be careful
not to cut wires, piping, or structural supports. Use a steel ther-
mostat shield ring to protect drywall from thermostat wiring
where applicable.
Prevent dust and debris from settling in unit. If wall finish or
color is to be applied by spraying, cover all openings to
prevent spray from entering unit.
Approximate Air Delivery (Cfm)
3-row 4-row
510 497 485
490 476 464
449 440 425
778 750 747
664 645 629
554 539 527
1001 1013
659 655 642
519 507 503
1215 1218
930 876 865
616 597 570
1500 1484
1065 1034
801 790 881
Approximate Air Delivery (Cfm)
3-row 4-row
510 497 485
490 476 464
449 440 425
778 750 747
664 645 629
554 539 527
1001 1013
788 782 773
659 655 642
1215 1218
1024 995
767 732 719
1500 1484
1229 1248
928 922 901
NOTE: Use the table below to determine the heating and cooling coil
combinations available with PSC Motor operation.
COOLING COIL
5 Rows CW
4 Rows CW
3 Rows CW or DX†
†DX cooling applications are only available in 3-row cooling
configuration.
23
5-row 6-row
490 489
473 476
452 455
766 732
621 596
533 514
973 980
763 740
498 501
1239 1250
852 846
568 558
1468 1482
1033 1031
848 842
5-row 6-row
490 489
452 455
410 414
766 732
621 596
533 514
973 980
857 834
628 620
1239 1250
1099 1091
987 986
1468 1482
1246 1239
1033 1031
HEATING COIL
HW Steam Electric
1 or 2 rows N/A 3 elements
3 rows 1 or 2 rows 4 elements
4 rows 1 or 2 rows 5 or 6 elements
7-row
457
444
430
697
570
495
967
717
504
1175
846
573
1374
1013
799
7-row
457
430
406
697
570
495
967
810
611
1175
1052
964
1374
1199
1013