Step 5 - Make Duct Connections - Carrier 40UV075 Installation, Start-Up And Service Instructions Manual

Step 5 — Make Duct Connections
If applicable, install all 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 open-
ings, allow adequate straight duct, as shown below, immediately
after the unit.
.
40UH
Minimum Straight Duct
Required (Length in inches)
CAUTION
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
CW — Chilled Water Applications
DX — Direct Expansion
HW — Hot Water
PSC — Permanent Split Capacitor
*Standard on sizes 050-150.
†DX cooling applications are only available in 4-row cooling configuration.
075 100 125 150 200
45 52 58 63 75
Table 5 — Unit Ventilator Airflow — PSC Motor*
Speed
1-row
Max 522
High 503
Low 458
Max 806
High 682
Low 569
Max 1064
High 662
Low 530
Max 1295
High 899
Low 568
Max 1542
High 1071
Low 812
Speed
1-row
Max 522
High 503
Low 458
Max 806
High 682
Low 569
Max 1064
High 794
Low 662
Max 1295
High 1055
Low 738
Max 1542
High 1285
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 transmis-
sion where specified.
Install ductwork, grilles, and plenums so that they do not restrict
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
thermostat shield ring to protect drywall from thermostat wir-
ing where applicable.
Prevent dust and debris from settling in unit. If wall finish or col-
or is to be applied by spraying, cover all openings to prevent
spray from entering unit.
Approximate Air Delivery (Cfm)
2-row 3-row 4-row
510 497
490 476
449 440
778 750
664 645
554 539
1033 1001 1013
659 655
519 507
1285 1215 1218
930 876
616 597
1480 1500 1484
1068 1065 1034
801 790
Approximate Air Delivery (cfm)
2-row 3-row 4-row
510 497
490 476
449 440
778 750
664 645
554 539
1033 1001 1013
788 782
659 655
1285 1215 1218
1040 1024
767 732
1480 1500 1484
1257 1229 1248
928 922
NOTE: Use the table below to determine the heating and cooling coil com-
binations available with PSC motor operation.
COOLING COIL
5 Rows CW
4 Rows CW or DX†
3 Rows CW
30
5-row 6-row
485 490 489
464 473 476
425 452 455
747 766 732
629 621 596
527 533 514
973 980
642 763 740
503 498 501
1239 1250
865 852 846
570 568 558
1468 1482
1033 1031
881 848 842
5-row 6-row
485 490 489
464 452 455
425 410 414
747 766 732
629 621 596
527 533 514
973 980
773 857 834
642 628 620
1239 1250
995 1099 1091
719 987 986
1468 1482
1246 1239
901 1033 1031
HEATING COIL
HW Steam
1 or 2 rows N/A
3 rows 1 or 2 rows
4 rows 1 or 2 rows
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
Electric
3 elements
4 elements
5 or 6 elements