Sterling TF-300 - Manual (Page 4)

4
C
E
(Hanging)
1-3/8"
(35)
(Hanging)
G
D
32-1/2"
(826) 11-5/8"
(295)
(Hanging)
H
(Discharge
Opening)
33"
A
B
L
F
(Discharge Opening)
1" (25)
Electrical Control Panel
Gas Valve
D4617
Rear View Side View Front View
Flue *
Table 1 - Performance and Dimensional Data - Tubular Propeller Unit Heater
Unit Size 100 125 150 175 200 250 300 350 400
PERFORMANCE DATA†
Input - BTU/Hr. 100,000 125,000 150,000 175,000 200,000 250,000 300,000 350,000 400,000
(kW) (29.3) (36.6) (43.9) (51.2) (58.6) (73.2) (87.8) (102.5) (117.1)
Output - BTU/Hr. 81,000 101,250 121,500 141,750 162,000 202,500 243,000 283,500 324,000
(kW) (23.7) (29.6) (35.6) (41.5) (47.5) (59.3) (71.2) (83.0) (95.0)
Thermal Effi ciency (%) 81 81 81 81 81 81 81 81 81
Free Air Delivery - CFM 1,600 2,200 2,400 2,850 3,200 3,450 5,000 5,600 5,800
(cu. m/s) (0.756) (1.039) (1.133) (1.346) (1.511) (1.629) (2.361) (2.644) (2.738)
Air Temperature Rise - Deg. F 47 42 47 46 47 54 45 47 51
(Deg. C) (26) (23) (26) (26) (26) (30) (24) (26) (28)
Full Load Amps at 120V 5.3 5.8 5.8 8.0 8.0 8.0 11.3 13.5 13.5
MOTOR DATA: Motor HP (Qty.) 1/10 1/4 1/4 1/3 1/3 1/3 (2) 1/4 (2) 1/3 (2) 1/3
Motor kW (0.080) (0.19) (0.19) (0.25) (0.25) (0.25) (0.19) (0.25) (0.25)
Motor Type SP PSC PSC PSC PSC PSC PSC PSC PSC
R.P.M. 1,050 1,140 1,140 1,140 1,140 1,140 1,140 1,140 1,140
Amps @ 115V 4.2 4.7 4.7 5.8 5.8 5.8 9.4 11.6 11.6
DIMENSIONAL DATA - inches (mm)
“A” Overall Height to Top of Flue 33-3/4
33-3/4 33-3/4 33-3/4 33-3/4 33-3/4 34 34 34
(857) (857) (857) (857) (857) (857) (864) (864) (864)
“B” Jacket Width of Unit 20-3/4 20-3/4 20-3/4 32-3/4 32-3/4 32-3/4 50-3/4 50-3/4 50-3/4
(527) (527) (527) (831) (831) (831) (1289) (1289) (1289)
“C” Width to CL Flue 13-3/8 13-3/8 13-3/8 19-3/8 19-3/8 19-3/8 28-3/8 28-3/8 28-3/8
(340) (340) (340) (492) (492) (492) (721) (721) (721)
“D” Depth to Rear of Housing 11 11 11 11 11 11 12-1/4 12-1/4 12-1/4
(279) (279) (279) (279) (279) (279) (311) (311) (311)
“E” Hanging Distance Width 18-5/8 18-5/8 18-5/8 30-5/8 30-5/8 30-5/8 48-5/8 48-5/8 48-5/8
(473) (473) (473) (778) (778) (778) (1235) (1235) (1235)
“F” Discharge Opening Width 18-3/4 18-3/4 18-3/4 30-3/4 30-3/4 30-3/4 48-3/4 48-3/4 48-3/4
(476) (476) (476) (781) (781) (781) (1238) (1238) (1238)
“G” Depth to CL Flue 4-3/4 4-3/4 4-3/4 4-3/4 4-3/4 4-3/4 5-1/8 5-1/8 5-1/8
(121) (121) (121) (121) (121) (121) (130) (130) (130)
“H” Discharge Opening Height 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2 24-1/2
(622) (622) (622) (622) (622) (622) (622) (622) (622)
“L” Overall Unit Width 25-1/4 25-1/4 25-1/4 37-1/4 37-1/4 37-1/4 55-1/4 55-1/4 55-1/4
(641) (641) (641) (946) (946) (946) (1403) (1403) (1403)
*Flue Size Diameter - in. 5 5 5 5 5 5 6 6 6
(Dia.-mm) (127) (127) (127) (127) (127) (127) (152) (152) (152)
Fan Diameter - in. (Qty.) 16 16 16 18 18 18 (2) 16 (2) 18 (2) 18
Gas Inlet-Natural Gas (in.) 1/2 1/2 1/2 1/2 1/2 3/4 3/4 3/4 3/4
Gas Inlet- LP Gas (in.) 1/2 1/2 1/2 1/2 1/2 1/2 OR 3/4 1/2 OR 3/4 1/2 OR 3/4 1/2 OR 3/4
Approximate Unit Weight - lbs. 133 145 155 191 201 211 307 321 335
(kg) (60) (66) (70) (87) (91) (96) (139) (145) (152)
Approximate Ship Weight - lbs. 173 185 195 241 251 261 367 381 395
(kg) (78) (84) (88) (109) (114) (118) (166) (173) (179)
DIMENSIONS .XXX STANDARD UNITS
DIMENSIONS IN PARENTHESIS (XXX) MILLIMETERS Figure 2 - Dimensional Drawing – Tubular Propeller Unit Heater
* For all installations, the fl ue collar is included with the unit and should be fi eld installed per the instructions included with the unit.
† Ratings shown are for unit installations at elevations between 0 and 2,000 ft (0 to 610m). For unit installations in U.S.A. above 2,000 ft. (610m), the unit input must be derated 4% for each 1,000 ft. (305m) above sea level; refer to
local codes, or in absence of local codes, refer to the latest edition of the National Fuel Gas Code, ANSI Standard Z223.1 (N.F.P.A. No. 54).
For installations in Canada, any reference to deration at altitudes in excess of 2,000 ft. (610m) are to be ignored. At altitudes of 2,000 ft. to 4,500 ft. (610 to 1372m), the unit must be derated to 90% of the normal altitude rating,
and be so marked in accordance with the ETL certifi cation.
D4617