Trane SSP-PRC001-EN manual Evaporator Fan Performance, Low Static Fan Drive, 20 Tons

Performance Data

Evaporator Fan Performance, Low Static Fan Drive, 20 Tons

Table 25. Evaporator Fan Performance 20 Ton TWE240B - Air Handler

										External Static Pressure (Inches of Water Gauge)
	.10"		.20"				.30"				.40"			.50"			.60"			.70"		.80"			.90"			1.00"
CFM	RPM	BHP			RPM	BHP			RPM	BHP		RPM	BHP		RPM	BHP		RPM	BHP	RPM	BHP		RPM	BHP RPM BHP RPM BHP
					5 HP Standard Motor & Field Supplied Low Static Drive(i)															5 HP Standard Motor & Low Static Drive Kit
6400	—	—						570		1.41	612		1.57	654		1.7	696		1.83	743	2.06	781		2.25	808		2.4	835		2.55
					—	—
6800	—	—			—	—		593		1.58	635		1.74	677		1.90				762	2.29	794		2.46	820		2.61	846		2.76
																		722	2.08
7200	—	—						615		1.75	657		1.92	700		2.09		747	2.33	781	2.52	806		2.66	831		2.81	856		2.96
				573		1.58
7600	—	—		603		1.84	651			1.98	694		2.15					766	2.57	795	2.74	819		2.88	844		3.02
															731	2.38													869	3.17
8000					633	2.11	686			2.21					761	2.66	785		2.81	809	2.95	832		3.09	857		3.23		882	3.37
	585	1.97										730	2.39
8400	619	2.2	657			2.35						752	2.73	778		2.94	801		3.09	823	3.23	848		3.39					899	3.71
								710		2.54																873	3.55
8800	652	2.43	680			2.60		733		2.86	773		3.07	794		3.22	816		3.36	837	3.50					889	3.86	915		4.04
																							863	3.68
9200	682	2.76							760	3.19	790		3.37	811		3.52	834		3.68	858	3.84		884	4.01	909		4.2	932		4.4
				723		2.98
9600				766		3.36	787			3.52	807		3.67	828		3.82	852		3.99				904	4.35	929		4.53	949		4.75
	711	3.08																		878	4.17
																					5 HP Standard Motor & Sheaves
						External Static Pressure (Inches of Water Gauge)
	1.20"		1.40"				1.60"				1.80"			2.00"			2.20"			2.40"		2.60"
CFM	RPM	BHP			RPM	BHP			RPM	BHP		RPM	BHP		RPM	BHP		RPM	BHP	RPM	BHP		RPM	BHP
		5 HP Standard Motor & Sheaves														7.5 HP Oversized Motor & Sheaves
6400	883	2.86	930			3.16	976			3.52	1021		3.89		1066	4.26	1111		4.62	1156	4.99	1201		5.36
6800	894	3.07	941			3.4	986			3.78	1030		4.16		1075	4.55	1119		4.93	1164	5.31
																							—	—
7200	904	3.29	951			3.65	995			4.04	1039		4.44		1083	4.84	1127		5.23	1171	5.63		—	—
7600	919	3.55	963			3.94	1007			4.34	1050		4.75		1093	5.16	1136		5.57	1179	5.98		—	—
8000	933	3.8	975			4.23	1018			4.65					1103	5.49	1145		5.91	1187	6.34		—	—
												1060	5.07
8400	947	4.14	989			4.57	1032			5.01		1074	5.44	1117		5.87	1159		6.31	1200	6.73		—	—
8800	960	4.47	1002			4.92						1087	5.81	1130		6.26	1172		6.70				—	—
								1045		5.36										—	—
9200	975	4.83							1058	5.73	1099		6.17	1141		6.62	1182		7.07	—	—		—	—
				1016		5.28
9600				1030		5.65	1071			6.09	1111		6.54	1152		6.99	1192		7.43	—	—		—	—
	990	5.2

Notes:

1.Data includes pressure drop due to wet coil and 2" filter.

2.Fan motor heat (MBh) = 3.15 x BHP.

3.Trane’s factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed and tested to operate reliably and continuously at all cataloged conditions. Using the full horsepower range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature motor failure. Our product’s warranty will not be affected.

(i)Field Supplied Low Static Drive (use Table 26)

Table 26. Low Static Fan Drive 20 Tons TWE240B/TWE240E Air Handler

Field Supplied Low Static Fan Drive

20 Tons TWE240B/TWE240E Air Handler(i)

Motor Sheave	Nominal
Turns Open	RPM
0	712
1	686
2	660
3	634
4	609
5	583
6	557

(i)Field supplied components required: Motor Sheave: Variable Pitch (4.3-5.5 inch

Pitch Diameter) 1.125 inch Bore, Single Groove, "B" Belt.

Blower Sheave: Fixed Pitch (13.4 inch Pitch Diameter), 1.4375 inch Bore, Single Groove, "B" Belt.

Belt: B67

Low Static Fan Drive Accessory Kit

20 Tons TWE240B/TWE240E Air Handler

Motor Sheave	Nominal
Turns Open	RPM
0	857
1	831
2	805
3	779
4	753
5	727
6	701

SSP-PRC001-EN 27