User's Manual

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