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Model
1
2
H
B
A
H
- Humidifier
B
- With Internal
Circuit Breakers*
C
- Without Internal
Circuit Breakers
S
- Stainless Steel (304)
Cabinet (w/o Breakers)
T
- Stainless Steel (304)
Cabinet (w/ Breakers)
UNIT TYPE
A
- 1 "AX" Cylinder
D
- 1 "B" Cylinder
G
- 1 "C" Cylinder
H
- 2 "C" Cylinders
*NOTE: AN EXTERNAL FUSED DISCONNECT SWITCH, OR OTHER SIMILAR PROTECTION, AS REQUIRED BY
LOCAL, AND NATIONAL ELECTRICAL CODES MUST BE SUPPLIED AND INSTALLED BY OTHERS.
breaker (except for select models over 48 amps) is available in the unit to reduce the risk of costly damage in the event of
internal failure. It is not meant to be the primary protection as may be required by local and national electrical codes. All
units include electronic overload protection as a standard feature.
UNIT VOLTAGE CHARACTERISTICS
Humidifiers may be ordered with the voltage nameplate
ratings shown below. The units may be operated at nom-
inal system voltage shown in Table 9.
Table 9
Unit Nameplate Voltage
120
208
230
277
380
415
460
575
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Design
Nominal Steam
Series
Electrical
Output Capacity
3
4
5
6
7
H
A
U
0
VOLTAGE
A
- 115V, 1PH
B
- 208V, 1PH
C
- 208 V, 3PH
D
- 230V, 1PH
E
- 230V, 3PH
F
- 277V, 1PH
005
L
- 380V, 1PH
010
T
- 380V, 3PH
020
Q
- 415V, 1PH
030
W
- 415V, 3PH
040
G
- 460V, 3PH
050
H
- 575V, 3PH
060
M
- 460V, 1PH
080
N
- 575V, 1PH
100
AGENCY
125
LISTING
150
U
- UL
175
C
- cUL
200
Suitable Nominal
System Voltages
115, 120
208
220, 230, 240
277
380
400, 415
440, 460, 480
550, 575, 600
Humidifiers | Unit Nomenclature
Options
8
9
10
1
0
Lb/Hr
- 5#/Hr
- 10#/Hr
- 20#/Hr
- 30#/Hr
- 40#/Hr
- 50#/Hr
- 60#/Hr
- 80#/Hr
- 100#/Hr
B
- Blower Package
- 125#/Hr
- 150#/Hr
- 175#/Hr
- 200#/Hr
CYLINDER LIFE
Cylinders have an average life of 1150 hours when
operating at maximum output with a water supply hard-
ness of 150 ppm. Approximate cylinder life for other
water hardness may be determined by multiplying 1150
by the correction factor shown in Table 10.
Table 10
Water Hardness (ppm)
50
100
150
200
250
300
Cylinder life will be extended if operated at less than
maximum output. Multiply the cylinder life calculated in
Table 10 by the correction factory shown in Table 11.
Table 11
% of Maximum Output
100
75
50
An optional circuit
Correction Factor
3.00
1.50
1.00
0.75
0.60
0.50
Correction Factor
1.00
1.33
2.00
G-17
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