Thermo Products CMA1-50N, CMA2-75N service manual Speed Tap, Static, Pressure

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
Speed Tap \			Furnace Airflow (CFM) vs. External Static pressure (in. WC.)
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
Speed Tap \				Temperature Rise vs. External Static Pressure (in. WC.)
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
Speed Tap \			Blower Motor Current Draw (Amps) vs. External Static pressure (in. WC.)
Static
		0.1			0.2	0.3	0.4			0.5			0.6	0.7
Pressure
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
Speed Tap \			Blower Motor Watts vs. External Static pressure (in. WC.)
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

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