Product manual

18 McQuay IM 782-4
Installation Guidelines
Minimum Air Velocity
Recommended minimum air flow through a specific heater is
shown in the following tables.
Table 4: LAH002 Minimum Air Velocity
Heater Capacity, kW 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5
Minimum air flow, CFM 184 218 249 274 292 310 328 344 359 371 382 387 398 396 400
Heater Capacity, kW 9 10
Minimum air flow, CFM 404 409
Table 5: LAH003 Minimum Air Velocity
Heater Capacity, kW 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 10
Minimum air flow, CFM 298 339 368 400 426 446 466 484 501 519 536 550 565 579 605
Heater Capacity, kW 11 12 13 14 15 16 17 18 19 20
Minimum air flow, CFM 620 629 637 646 652 658 660 660 663 663
Table 6: LAH004 Minimum Air Velocity
Heater Capacity, kW 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 10
Minimum air flow, CFM 298 339 368 400 426 446 466 484 501 519 536 550 565 579 605
11 12 13 14 15 16 17 18 19 20
Minimum air flow, CFM 620 629 637 646 652 658 660 660 663 663
Table 7: LAH005 Minimum Air Velocity
Heater Capacity, kW 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 10 11 12 13
Minimum air flow, CFM 447 477 511 538 561 584 603 622 641 656 672 706 740 771 794
Heater Capacity, kW 14 15 16 17 18 19 20 22 24 26
Minimum air flow, CFM 809 824 832 840 847 855 859 866 870 874
Table 8: LAH005 Minimum Air Velocity
Heater Capacity, kW 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 10 11 12 13
Minimum air flow, CFM 447 477 511 538 561 584 603 622 641 656 672 706 740 771 794
Heater Capacity, kW 14 15 16 17 18 19 20 22 24 26
Minimum air flow, CFM 809 824 832 840 847 855 859 866 870 874
Table 9: LAH007 Minimum Air Velocity
Heater Capacity, kW 6 6.5 7 7.5 8 8.5 9 10 11 12 13 14 15 16 17
Minimum air flow, CFM 637 673 704 729 750 765 790 831 867 903 938 969 1000 1030 1056
Heater Capacity, kW 18 19 20 22 24 26 28 30 32 34 36 38
Minimum air flow, CFM 1076 1096 1102 1117 1132 1142 1153 1163 1168 1168 1173 1173
Table 10: LAH010 Minimum Air Velocity
Heater Capacity, kW 6 6.5 7 7.5 8 8.5 9 10 11 12 13 14 15 16 17
Minimum air flow, CFM 637 673 704 729 750 765 790 831 867 903 938 969 1000 1030 1056
Heater Capacity, kW 18 19 20 22 24 26 28 30 32 34 36 38 40 45
Minimum air flow, CFM 1076 1096 1102 1117 1132 1142 1153 1163 1168 1168 1173 1173 1173 1178