Trane UHSB Installation, Operation And Maintenance Manual page 44

S&p unit heaters
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Table 25.
"Low Output" Standard Vertical Units with All Air Ports Open
Unit
Output
Condensate
Capacity
BTU/HR
lbs./hr
(MBH)
(kW)
(kg/hr)
34,800
36
(10.2)
(16.3)
042L
26,000
27
(7.6)
(12.2)
57,200
59
(16.8)
(26.7)
064L
45,800
48
(13.4)
(21.7)
68,000
71
(19.9)
(32.2)
080L
55,000
57
(16.1)
(25.8)
85,400
89
(25.0)
(40.3)
102L
71,200
74
(20.9)
(33.5)
122L
111,000
115
(32.5)
(52.1)
146L
125,000
130
(36.6)
(58.9)
166L
149,000
154
(43.7)
(69.8)
202L
176,800
183
(51.8)
(82.9)
252L
214,900
224
(63.0)
(101.5)
280L
251,800
260
(73.8)
(117.8)
336L
291,000
302
(85.3)
(136.8)
384L
344,000
356
(100.8)
(161.3)
500L
428,000
446
(125.4)
(202.0)
600L
515,000
533
(150.9)
(241.4)
720L
620,000
642
(181.7)
(290.8)
E.D.R. = 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 conversion factors from
be calculated by applying basic formula.
44
Steam Performance Data
E.D.R.
Final Air
Sq. ft.
Temp. °F
Motor H.P.
(Sq. m)
°C
(kW)
145
108
(13.5)
(42)
1/40
108
111
(.019)
(10.0)
(44)
238
104
(22.1)
(40)
1/20
(.037)
191
109
(17.8)
(43)
283
106
(26.3)
(41)
1/20
229
111
(.037)
(21.3)
(44)
356
108
(33.1)
(42)
1/8
296
111
(.093)
(27.5)
(44)
462
107
1/6
(43.0)
(42)
(.124)
524
109
1/6
(48.7)
(43)
(.124)
620
107
1/6
(57.7)
(42)
(.124)
736
108
1/4
(68.5)
(42)
(.186)
895
104
1/4
(83.3)
(40)
(.186)
1050
106
1/2
(97.7)
(41)
(.373)
1210
107
3/4
(112.6)
(42)
(.559)
1430
108
3/4
(133.0)
(42)
(.559)
1785
102
1-1/2
(166.0)
(39)
(1.119)
2140
106
1-1/2
(199.1)
(41)
(1.119)
2580
108
3
(240.0)
(42)
(2.237)
Motor
Nominal
Outlet Velocity
3
RPM
CFM (m
/s)
FPM (m/s)
1550
668
950
(.312)
(4.826)
1150
470
672
(.219)
(3.414)
1550
1200
1190
(.560)
(6.045)
1150
862
858
(.402)
(4.359)
1550
1360
1350
(.635)
(6.858)
1150
995
992
(.464)
(5.039)
1070
1640
1050
(.765)
(5.334)
850
1290
827
(.602)
(4.201)
1100
2180
1390
(1.017)
(7.061)
1100
2360
1080
(1.101)
(5.486)
1100
2920
1340
(1.363)
(6.807)
1100
3390
1560
(1.582)
(7.925)
1100
4500
1270
(2.100)
(6.452)
1100
5040
1420
(2.352)
(7.214)
1140
5700
1610
(2.660)
(8.179)
1140
6600
1870
(3.080)
(9.500)
1175
9380
1860
(4.377)
(9.449)
1175
10,300
2060
(4.807)
(10.465)
1165
11,900
2380
(5.553)
(12.090)
Sound Rating
I
I
II
II
III
III
IV
III
IV
IV
IV
IV
IV
IV
IV
Table
7. Final temperatures at new conditions can
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