Sterling SF User Manual
Page 4
4
Table 1 - Performance and Dimensional Data - Separated Combustion Tubular Propeller Unit Heater
Figure 2 - Dimensional Drawing – Separated Combustion Tubular Propeller Unit Heater
D9067B
Unit Capacity (MBH)
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.
83,000
103,750
124,500
145,250
166,000
207,500
249,000
290,500
332,000
(kW)
(24.3)
(30.4)
(36.4)
(42.5)
(48.6)
(60.7)
(72.9)
(85.1)
(97.2)
Thermal Effi ciency (%)
83
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
6.4
6.9
8.0
11.3
13.5
MOTOR DATA: Motor HP (Qty)
1/10
1/4
1/3
1/4 (2)
1/3 (2)
Motor kW
(0.080)
(0.19)
(0.25)
(0.19)
(0.25)
Motor Type
SP
PSC
PSC
PSC
PSC
RPM
1,050 1,140
1,140
1,140 1,140
Amps @ 115V
4.2
4.7
5.8
9.4
11.6
DIMENSIONAL DATA - inches (mm)
"A" Overall Height to Top of Flue
33-3/4
34
(857)
(864)
"B" Jacket Width of Unit
20-3/4
32-3/4
50-3/4
(527)
(831)
(1289)
"C" Width to CL Flue
13-3/8
19-3/8
28-3/8
(340)
(492)
(721)
"D" Depth to Rear of Housing
11
12-1/4
(279)
(311)
"E" Hanging Distance Width
18-5/8
30-5/8
48-5/8
(473)
(778)
(1235)
"F" Discharge Opening Width
18-3/4
30-3/4
48-3/4
(476)
(781)
(1238)
"G" Depth to CL Flue
4-3/4
5-1/8
(121)
(130)
"L" Overall Unit Width
25-1/4
37-1/4
55-1/4
(641)
(946)
(1403)
"M" Flue Size Diameter* - in
5
6
(mm)
(127)
(152)
Gas Inlet, Natural Gas - in
1/2
3/4
Gas Inlet, LP Gas - in
1/2
1/2 OR 3/4
Approximate Unit Weight - lb
135
147
157
194
204
214
311
325
339
(kg)
(61)
(67)
(71)
(88)
(93)
(97)
(141)
(147)
(154)
Approximate Ship Weight - lb
175
187
197
244
254
264
371
385
399
(kg)
(79)
(85)
(89)
(111)
(115)
(120)
(168)
(175)
(181)
† 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 fi eld 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 fi eld derated to 90% of the normal altitude rating, and be so marked in accordance with the ETL certifi cation. See Table 6A for fi eld
deration information.
* Flue collar is factory supplied with unit; to be fi eld installed per included instructions.
** LEGEND: SP = SHADED POLE PSC = PERMANENT SPLIT CAPACITOR
24-1/2
(622mm)
(Discharge
Opening)
33"
(838mm)
A
F
(Discharge
Opening)
1"
(25mm)
B
L
32-1/2'
(826mm)
D
G
11-5/8
(295mm)
(Hanging)
Gas Valve
Connection
Electrical Control Panel
C
E
(Hanging)
1-3/8'
(35mm)
(Hanging)
M
(Flue Diameter)
Rear View
Side View
Front View
High Limit
Access
Combustion Air
Inlet