All installations and services must be performed by qualified service personnel.
CMA2-75
ALTERATIONS REQ’D FOR A/C @ DESIGN EXTERNAL STATIC PRESSURE
COOLING UNIT
HTG Speed
Recommended CLG Speed
24,000 MED-LOW
MED-LOW
30,000 MED-LOW
MED-HIGH
36,000 MED-LOW HIGH
Furnace Airflow (CFM) vs. External Static pressure (in. WC.)
Speed Tap \
Static
Pressure
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Low
817 797 773 730 668
620 555
ML
1019 995 959 918 869
821 760
MH
1257 1210 1174 1125 1076
1024 959
High
1470 1420 1366 1312 1259
1196 1127
Temperature Rise vs. External Static Pressure (in. WC.)
Speed Tap \
Static
Pressure
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Low
81
83
85
90
90 106 119
ML
65
66
69
72
76
80
87
MH
52 55 56 59
61
64
69
High
45 46 48 50 52
55 59
Blower Motor Current Draw (Amps) vs. External Static pressure (in. WC.)
Speed Tap \
Static
Pressure
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Low
3.1 3.0 2.9 2.8 2.7 2.6 2.5
ML
3.9 3.8 3.6 3.5 3.3 3.2 3.1
MH
4.8 4.6 4.4 4.2 4.1 4.0 3.8
High
5.7 5.5 5.4 5.2 5.1 5.0 4.8
Blower Motor Watts vs. External Static pressure (in. WC.)
Speed Tap \
Static
Pressure
0.1 0.2 0.3 0.4 0.5 0.6 0.7
Low
312 303 298 291 280
273 264
ML
400 390 381 366 354
342 330
MH
513 490 478 462 447
432 413
High
624 605 591 573 556
542 522
=
Recommended operation range
31