Cooling Airflow Data - Mv Models; High / Low Speed Cooling And Heat Pump Cfm; Heating Airflow Data - Mv Models - York MV Technical Manual

COOLING AIRFLOW DATA - MV MODELS

12B Air Handler
CFM
High Low
1307 882
1080 756
1270 862
943 689
1146 786
1050 726
870 632
771 594
931 668
693 565
851 624
655 567
16C Air Handler
CFM
High Low
1920 1321
1699 1189
1884 1296
1558 1094
1714 1193
1451 1037
1403 1009
1288 947
1336 978
1214 888
1239 915
1098 839
All CFM's are shown at 0.5" w.c. external static pressure.These units have variable speed motors that automatically adjust to provide constant CFM from 0.0" to
0.6" w.c. static pressure. From 0.6" to 1.0" static pressure, CFM is reduced by 2% per 0.1" increase in static. Operation on duct systems with greater than 1.0" w.c.
external static pressure is not recommended.
NOTE: At some settings, LOW COOL and/or LOW HEAT airflow may be lower than what is required to operate an airflow switch on certain models of electronic air
cleaners. Consult the instructions for the electronic air cleaner for further details.
* The ADJ "D" tap should not be used.

HEATING AIRFLOW DATA - MV MODELS

12B Air Handler
CFM
High Low
1270 791
943 714
931 643
693 567
16C Air Handler
CFM
High Low
1884 1217
1558 1065
1336 823
1214 727
All CFM's are shown at 0.5" w.c. external static pressure.These units have variable speed motors that automatically adjust to provide constant CFM from 0.0" to
0.6" w.c. static pressure. From 0.6" to 1.0" static pressure, CFM is reduced by 2% per 0.1" increase in static. Operation on duct systems with greater than 1.0" w.c.
external static pressure is not recommended.
NOTE: At some settings, LOW COOL and/or LOW HEAT airflow may be lower than what is required to operate an airflow switch on certain models of electronic air
cleaners. Consult the instructions for the electronic air cleaner for further details.
* The ADJ "D" tap should not be used.
10

HIGH / LOW SPEED COOLING AND HEAT PUMP CFM

3
m /min
High Low High
37.0 25.0 1366
30.6 21.4 1097
36.0 24.4 1312
26.7 19.5 957
32.5 22.3 1167
29.7 20.6 1051
24.6 17.9 863
21.8 16.8 739
26.4 18.9 927
19.6 16.0 658
24.1 17.7 830
18.5 16.1 594
3
m /min
High Low High
54.4 37.4 2209
48.1 33.7 2022
53.3 36.7 2178
44.1 31.0 1798
48.5 33.8 1965
41.1 29.4 1843
39.7 28.6 1596
36.5 26.8 1700
37.8 27.7 1608
34.4 25.1 1493
35.1 25.9 1430
31.1 23.8 1334
HIGH / LOW SPEED COOLING AND HEAT PUMP CFM
3
m /min
High Low High
36.0 22.4 1312
26.7 20.2 957
26.4 18.2 927
19.6 16.1 658
3
m /min
High Low High
53.3 34.5 2178
44.1 30.2 1798
37.8 23.3 1608
34.4 20.6 1493
12D Air Handler
3
CFM
m /min
Low High
869 38.7
717 31.1
856 37.2
646 27.1
761 33.0
703 29.8
580 24.4
520 20.9
629 26.2
495 18.6
567 23.5
488 16.8
20D Air Handler
3
CFM
m /min
Low High
1394 62.6
1394 57.3
1381 61.7
1378 50.9
1226 55.6
1143 52.2
1226 45.2
1066 48.1
1023 45.5
967 42.3
911 40.5
877 37.8
12D Air Handler
3
CFM
m /min
Low High
762 37.2
668 27.1
591 26.2
488 18.6
20D Air Handler
3
CFM
m /min
Low High
1217 61.7
1036 50.9
748 45.5
551 42.3
255427-YTG-F-1006
JUMPER SETTINGS
Low COOL Tap ADJ Tap*
24.6 A
20.3 B
24.2 A
18.3 B
21.5 A C
19.9 C
16.4 B C
14.7 D
17.8 C
14.0 D
16.1 C C
13.8 D C
JUMPER SETTINGS
Low COOL Tap ADJ Tap*
39.5 A
39.5 B
39.1 A
39.0 B
34.7 A C
32.4 C
34.7 B C
30.2 D
29.0 C
27.4 D
25.8 C C
24.8 D C
JUMPER SETTINGS
Low COOL Tap ADJ Tap*
21.6 A
18.9 B
16.7 C
13.8 D
JUMPER SETTINGS
Low COOL Tap ADJ Tap*
34.5 A
29.3 B
21.2 C
15.6 D
Unitary Products Group
B
B
A
A
B
B
A
A
B
B
A
A
B
B
A
A
A
A
A
A
A
A
A
A