Brochure

BLOWER CHARTS
Models UDBP and UDBS
Blower Chart for Sizes 150 - 400
Standard motor and drive shown shaded.
UDBP
and
UDBS
TEMP
RISE
°F
CFM
Nozzle Option with Louvers EXTERNALStaticPressure
30
o
60
o
0” .25” .50”
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
150
45
o
2562 730 0.43 730 0.43 730 0.43 840 0.55 930 0.68
60
o
1921 520 0.25 520 0.25 520 0.25 655 0.35
780 0.43
75
o
1537 405 0.17 405 0.17 405 0.17
- - - - - - - -
175
45
o
2989 910 0.68 910 0.68 910 0.68 960 0.83 1055 0.98
60
o
2242 660 0.44 660 0.44 660 0.44 775 0.51 865 0.63
75
o
1793 545 0.28 545 0.28 545 0.28 665 0.38
- - - -
200
45
o
3416 1020 0.91 1020 0.91 1020 0.91 1090 1.07 1160 1.24
60
o
2562 730 0.49 730 0.49 730 0.49 885 0.63 935 0.76
75
o
2049 600 0.34 600 0.34 600 0.34 720 0.45 830 0.51
225
45
o
3843 740 1.05 740 1.05 740 1.05 845 1.22 885 1.40
60
o
2882 530 0.60 530 0.60 530 0.60 670 0.74 730 0.89
75
o
2306 430 0.42 430 0.42 430 0.42 565 0.54 640 0.66
250
45
o
4270 900 1.30 900 1.30 900 1.30 935 1.49 980 1.69
60
o
3202 660 0.73 660 0.73 660 0.73 730 0.88 790 1.04
75
o
2562 570 0.56 570 0.56 570 0.56 610 0.69 685 0.83
300
45
o
5123 990 2.04 990 2.04 990 2.04 1020 2.29 1070 2.55
60
o
3843 735 1.29 735 1.29 735 1.29 795 1.49 865 1.71
75
o
3074 600 0.95 600 0.95 600 0.95
- - - - - - - -
350
45
o
5977 1040 2.95 1040 2.95 1040 2.95 1075 3.24 1130 3.54
60
o
4483 800 1.80 800 1.80 800 1.80 850 2.04 930 2.28
75
o
3586 630 1.33 630 1.33 630 1.33
720 1.45 - - - -
400
45
o
6185
1055 3.56 1055 3.56 1055 3.56
1090 3.86 1170 4.17
60
o
4392 790 1.98 790 1.98 790 1.98 875 2.17 1020 2.42
75
o
4100 675 1.76 675 1.76 675 1.76 750 1.99
- - - -
Model B with Belt Drive Motor
Model B unit heaters are designed to handle up to .5" w.c. of static pressure with temperature rises as shown from 45°F to 75°F. The following
chart indicates the CFM, the motor HP, and the optional drive required to achieve the desired temperature rise with external pressures from 0
to .5" w.c.
DriveOptionKey(seechartonnextpage):
The "AM" drive will provide the selected CFM and
temperature rise when installed with the total external
static pressure listed but MAY require eld-adjustment
of the blower speed (CFM). Check the temperature
rise and the motor amps. If adjustment is needed,
follow "Blower Speed Adjustment" instructions in the
heater installation manual.
The standard drive as set at the factory provides the
selected CFM and temperature rise when installed
with the external static pressure listed.
AM __
N.R.
STD
STD
NOTES: (1) Sizes 50-100 do not show a standard drive because they have a standard direct drive blower motor.
(2) If the unit includes an optional blower cabinet, see the chart below for pressure drop information.
The temperature rise and static pressure combination
is not recommended for the heater size.
The standard drive will provide the selected CFM and
temperature rise when installed with the total exter-
nal static pressure listed but REQUIRES eld-adjust-
ment of the blower speed (CFM). Follow the "Blower
Speed Adjustment" instructions in the heater installa-
tion manual.
Temp.
Rise
Heater Size
25 50 75 100 125 165 200 250 300 400
FilterThickness
1” 2” 1” 2” 1” 2” 1” 2” 1” 2” 1” 2” 1” 2” 1” 2” 1” 2” 1” 2”
75°F 0.004 0.007 0.01 0.015 0.018 0.032 0.032 0.055 0.05 0.075 0.018 0.03 0.026 0.045 0.017 0.028 0.024 0.038 0.026 0.045
70°F 0.004 0.008 0.01 0.018 0.023 0.034 0.036 0.058 0.055 0.1 0.021 0.035 0.03 0.052 0.019 0.031 0.027 0.045 0.03 0.052
65°F 0.005 0.009 0.011 0.019 0.024 0.04 0.041 0.069 0.065 0.12 0.024 0.04 0.035 0.06 0.023 0.036 0.03 0.053 0.035 0.06
60°F 0.005 0.009 0.014 0.023 0.028 0.047 0.052 0.087 0.085 0.14 0.028 0.047 0.041 0.07 0.025 0.042 0.035 0.061 0.041 0.07
55°F 0.006 0.01 0.016 0.027 0.034 0.057 0.065 0.105 0.1 0.16 0.033 0.057 0.047 0.08 0.03 0.051 0.041 0.072 0.047 0.08
50°F 0.006 0.01 0.018 0.029 0.041 0.069 0.07 0.12 0.13 N.R. 0.04 0.068 0.057 0.095 0.035 0.062 0.04 0.085 0.057 0.095
45°F 0.007 0.011 0.024 0.04 0.05 0.086 0.092 0.16 0.18 N.R. 0.049 0.082 0.07 0.14 0.043 0.074 0.065 0.12 0.07 0.14
Sizes 30 to 125 do not show a standard
drive because they have a Direct drive
blower with multispeed/Multitap. They
are available in 115/1/60 voltage only.
Form RZ-C-UH (Version H) Page 34
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