Sterling VS - Manual (Page 6)

6
EDR = Equivalent Direct Radiation
NOTES:
Constant speed units are rated at capacities shown in regular type; capacities shown in italic faced type apply
only to units with multi-speed motors.
** Performance data based on 2 lbs. steam pressure at heater with air entering @60°F.
To determine BTU per hour capacities at various steam pressures and entering air temperatures, use
correction factors from Table 5. Final temperatures at new conditions can be calculated by applying basic
formula.
STEAM PERFORMANCE DATA**
EDR
Sq. ft.
(Sq. m)
Condensate
lbs/hr
(kg/hr) RPM
Nominal
CFM
(m 3 /s)
1/40
(.019)
1/20
(.037)
1/20
(.037)
1/8
(.093)
1/6
(.124)
1/6
(.124)
1/6
(.124)
1/4
(.186)
1/4
(.186)
1/2
(.373)
3/4
(.559)
3/4
(.559)
1-1/2
(1.119)
1-1/2
(1.119)
3
(2.237)
I
I
II
II
III
III
IV
III
IV
IV
IV
IV
IV
IV
IV
34,800
(10.2)
26,000
(7.6)
57,200
(16.8)
45,800
(13.4)
68,000
(19.9)
55,000
(16.1)
85,400
(25.0)
71,200
(20.9)
111,000
(32.5)
125,000
(36.6)
149,000
(43.7)
176,800
(51.8)
214,900
(63.0)
251,800
(73.8)
291,000
(85.3)
344,000
(100.8)
428,000
(125.4)
515,000
(150.9)
620,000
(181.7)
145
(13.5)
108
(10.0)
238
(22.1)
191
(17.8)
283
(26.3)
229
(21.3)
356
(33.1)
296
(27.5)
462
(43.0)
524
(48.7)
620
(57.7)
736
(68.5)
895
(83.3)
1050
(97.7)
1210
(112.6)
1430
(133.0)
1785
(166.0)
2140
(199.1)
2580
(240.0)
Output
BTU/HR
(kW)
Unit
Capacity
(MBH)
36
(16.3)
27
(12.2)
59
(26.7)
48
(21.7)
71
(32.2)
57
(25.8)
89
(40.3)
74
(33.5)
115
(52.1)
130
(58.9)
154
(69.8)
183
(82.9)
224
(101.5)
260
(117.8)
302
(136.8)
356
(161.3)
446
(202.0)
533
(241.4)
642
(290.8)
HP
(kW)
Motor
Final
Air
Temp °F
°C
Outlet
Velocity
FPM
(m/s)
Sound
Rating
108
(42)
111
(44)
104
(40)
109
(43)
106
(41)
111
(44)
108
(42)
111
(44)
107
(42)
109
(43)
107
(42)
108
(42)
104
(40)
106
(41)
107
(42)
108
(42)
102
(39)
106
(41)
108
(42)
1550
1150
1550
1150
1550
1150
1070
850
1100
1100
1100
1100
1100
1100
1140
1140
1175
1175
1165
668
(.312)
470
(.219)
1200
(.560)
862
(.402)
1360
(.635)
995
(.464)
1640
(.765)
1290
(.602)
2180
(1.017)
2360
(1.101)
2920
(1.363)
3390
(1.582)
4500
(2.100)
5040
(2.352)
5700
(2.660)
6600
(3.080)
9380
(4.377)
10,300
(4.807)
11,900
(5.553)
950
(4.826)
672
(3.414)
1190
(6.045)
858
(4.359)
1350
(6.858)
992
(5.039)
1050
(5.334)
827
(4.201)
1390
(7.061)
1080
(5.486)
1340
(6.807)
1560
(7.925)
1270
(6.452)
1420
(7.214)
1610
(8.179)
1870
(9.500)
1860
(9.449)
2060
(10.465)
2380
(12.090)
Table 4 - “Low Output” Standard Vertical Units with All Air Ports Open
040L
062L
077L
104L
125L
144L
164L
200L
237L
285L
317L
367L
495L
585L
700L