Cooling Air Delivery - Cfm; Checklist - ICP N9MSB0401410C Service And Technical Support Manual

SERVICE AND TECHNICAL SUPPORT MANUAL

Checklist

1. Put away tools and instruments. Clean up debris.
2. Verify that the jumper is removed from the TEST/TWIN
terminal. Verify that there is nothing plugged into the PLT
connector.
NOTE: If there is a jumper connector plugged into PLT, remove
it and discard. (See Figure 4)
3. Verify that the Blower/Heat Off Delay jumpers are set as
desired. (See Figure 4 and Figure 15)
4. Verify that the blower (lower door in upflow position) and
control ("Main" or upper door in upflow position) doors
are properly installed.
Table 5
RETURN AIR
SIZE
CONNECTION
401410C SIDE/BOTTOM
401712C SIDE/BOTTOM
601412C SIDE/BOTTOM
601716C SIDE/BOTTOM
801716C SIDE/BOTTOM
BOTTOM or
802120C
4,5
TWO−SIDES
1002116C SIDE/BOTTOM
BOTTOM or
1002120C
4,5
TWO−SIDES
BOTTOM or
1202420C
4,5
TWO−SIDES
NOTES:
1. A filter is required for each return−air inlet. Airflow performance includes a 3/4 in. (19 mm) washable filter media such as contained in factory−
authorized accessory filter rack. See accessory list. To determine airflow performance without this filter, assume an additional 0.1 in. W.C.
available external static pressure.
2. ADJUST THE BLOWER SPEED TAPS AS NECESSARY FOR THE PROPER AIR TEMPERATURE RISE FOR EACH INSTALLATION.
3. Shaded areas indicate that this airflow range is BELOW THE RANGE ALLOWED FOR HEATING OPERATION. THESE AIRFLOW RANGES
MAY ONLY BE USED FOR COOLING.
4. Airflows over 1800 CFM require bottom return, two−side return, or bottom and side return. A minimum filter size of 20" x 25" is required.
5. For upflow applications, air entering from one side into both the side of the furnace and a return air base counts as a side and bottom return.
6. All airflows that are shown in BOLD exceed 0.58 Watts per CFM at the given external static pressure.
12
COOLING AIR DELIVERY - CFM (with filter
-
WIRE COOL
LEAD ING
CFM
COLOR TONS 0.1
/TON
Black 2.5 388 1145
Blue 2.0 413 970
Yellow 2.0 385 910
Red 1.5 397 725
Black 3.0 380 1365
Yellow 2.5 418 1245
Orange 2.5 366 1050
Blue 2.0 435 980
Red 1.5 437 720
Black 3.0 385 1215
Blue 2.5 370 980
Yellow 2.0 425 910
3
Red 1.5 430 750
Black 4.0 376 1600
Yellow 3.5 377 1380
3
Blue 3.0 387 1190
3
Red 2.5 394 1030
Black 4.0 389 1650
Yellow 3.5 381 1420
Orange 3.0 383 1205
Blue 2.5 384 1035
Red 2.0 380 850
Black 5.0 377 2225
Yellow 4.0 386 1690
Orange 3.5 397 1485
3
Blue 2.5 426 1120
Red 3 2.0 433 940
Black 4.0 373 1715
3
Yellow 3.5 379 1535
3
Blue 3.0 367 1300
3
Red 2.0 445 1110
Black 5.0 394 2270
Yellow 5.0 367 2090
Blue 4.0 416 1850
Red 3.5 421 1580
Black 5.0 410 2385
Yellow 5.0 369 2130
Blue 4.0 416 1875
3
Red 3.5 414 1610
Specifications subject to change without notice.
5. Verify that the Status LED heartbeat (bright−dim). If not,
check that the power supply is energized and that the
blower door is secure. See Figure 14 to interpret
diagnostic codes
6. Cycle test furnace with room thermostat to be sure that it
operates properly with the room thermostat. Check all
modes including Heat, Cool and Fan.
7. Check operation of accessories per manufacturer's
instructions.
8. Review Home Owner's Information with owner.
9. Attach entire literature packet to furnace.
)
1
TEST AIRFLOW DELIVERY @ VARIOUS EXTERNAL STATIC PRESSURES
0.2 0.3 0.4 0.5
1100 1060 1015
940 905 870
880 845 810
695 665 635
1310 1255 1200 1140
1200 1150 1100 1045
1025 985 950
955 935 905
705 690 675
1205 1205 1195 1155
985 980 955
920 905 880
730 705 680
1545 1505 1475 1505
1340 1335 1330 1320
1185 1195 1195 1160
1025 1030 1010
1620 1640 1605 1555
1425 1400 1370 1335
1205 1185 1165 1150
1020 1005 985
825 805 785
2160 2070 1980 1885
1665 1640 1595 1545
1470 1455 1430 1390
1110 1100 1090 1065
920 910 890
1660 1610 1555 1490
1480 1435 1380 1325
1255 1205 1160 1100
1055 1005 955
2205 2130 2055 1970
2040 1980 1910 1835
1815 1775 1725 1665
1550 1540 1515 1475
2310 2230 2150 2050
2070 2010 1940 1845
1840 1795 1735 1665
1585 1555 1515 1450
Gas Furnace: N9MSB
.
0.6 0.7 0.8
970 920 860 785
825 775 730 675
770 725 675 600
595 555 510 460
1080 1015 950
990 930 855
915 870 820 760
870 830 780 725
655 625 590 555
1100 1045 975
925 880 835 780
850 815 765 695
645 605 555 490
1445 1400 1330
1285 1225 1155
1125 1075 1015
985 940 905 855
1495 1425 1345
1290 1230 1170
1100 1055 1000
960 930 895 845
760 725 695 655
1790 1690 1575
1485 1410 1330
1340 1280 1205
1035 990 935
865 830 790 745
1420 1340 1245
1260 1180 1095
1035 970 905
890 835 770 690
1880 1780 1670
1755 1670 1570
1600 1525 1435
1420 1355 1280
1920 1780 1650
1740 1630 1525
1580 1495 1410
1395 1325 1250
440 04 4413 00
0.9 1
680 615
570 505
535 475
390 340
860 795
790 730
705 655
675 625
525 485
910 805
695 585
630 545
435 370
1235 1140
1085 1000
950 885
805 735
1255 1165
1095 1015
935 870
795 735
600 545
1460 1345
1235 1135
1120 1035
870 805
690 625
1150 1065
1010 910
810 730
610 535
1555 1425
1460 1340
1335 1225
1190 1100
1540 1415
1420 1305
1310 1205
1160 1080