Sterling VS - Manual (Page 5)

5
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.
41,300
(12.1)
33,600
(9.8)
65,500
(19.2)
52,800
(15.5)
80,600
(23.6)
65,100
(19.1)
101,800
(29.8)
87,900
(25.8)
124,400
(36.4)
152,000
(44.5)
173,000
(50.7)
210,200
(61.6)
249,800
(73.2)
283,800
(83.2)
333,400
(97.7)
386,000
(113.1)
496,000
(145.3)
585,000
(171.4)
705,000
(206.6)
040
062
077
104
125
144
164
200
237
285
317
367
495
585
700
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)
1550
1150
1550
1150
1550
1150
1070
850
1100
1100
1100
1100
1100
1100
1140
1140
1175
1175
1165
I
II
II
II
III
III
IV
III
IV
IV
IV
IV
IV
IV
IV
RPM
HP
(kW)
Table 3 - Standard Units
EDR
Sq. ft.
(Sq. m)
Output
BTU/HR
(kW)
Unit
Capacity
(MBH)
43
(19.5)
55
(24.9)
68
(30.8)
55
(24.9)
83
(37.6)
67
(30.4)
106
(48.0)
91
(41.2)
129
(58.4)
157
(71.1)
179
(81.1)
208
(94.2)
260
(117.8)
294
(133.2)
345
(156.3)
400
(181.2)
514
(232.8)
605
(274.1)
729
(330.2)
Condensate
lbs/hr
(kg/hr)
Final
Air
Temp °F
(°C)
Motor
Outlet
Velocity
FPM
(m/s)
Sound
Rating
124
(51)
131
(55)
121
(49)
129
(54)
122
(50)
130
(54)
123
(51)
129
(54)
124
(51)
123
(51)
121
(49)
118
(48)
115
(46)
119
(48)
119
(48)
118
(48)
117
(47)
117
(47)
119
(48)
595
(.278)
436
(.203)
989
(.462)
706
(.329)
1200
(.560)
858
(.400)
1490
(.695)
1180
(.551)
1790
(.835)
2220
(1.036)
2620
(1.223)
3200
(1.493)
4180
(1.951)
4430
(2.067)
5210
(2.431)
6140
(2.865)
8020
(3.743)
9450
(4.410)
11,000
(5.133)
877
(4.455)
658
(3.343)
1005
(5.105)
727
(3.693)
1220
(6.198)
894
(4.542)
980
(4.978)
783
(3.978)
1170
(5.944)
1045
(5.309)
1230
(6.248
1495
(7.595)
1205
(6.121)
1275
(6.477)
1500
(7.620)
1770
(8.992)
1640
(8.331)
1930
(9.804)
2250
(11.430)
STEAM PERFORMANCE DATA**
172
(16.0)
140
(13.0)
273
(25.4)
220
(20.5)
336
(31.3)
271
(25.2)
424
(39.4)
366
(34.0)
518
(48.2)
633
(58.9)
720
(67.0)
838
(78.0)
1040
(96.7)
1180
(109.8)
1390
(129.3)
1610
(149.8)
2070
(192.6)
2440
(227.0)
2940
(273.5)