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Operation
Table 37-1:
Status menu
Menu item
Default
value
Minimum
value
Maximum
value
Units
Notes
Tank run mode
Standby
--
--
--
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Master standby, Drain tank, Test I/O, or Test heat.
t *O
Auto mode,
the humidifier operates normally. All humidifier
components are monitored and controlled. If there is a call for
humidification, the system reacts.
t *O
Standby mode,
the humidifier is offline. All humidity control inputs
appear but are not acted upon; however, if the tank temperature falls
below the freeze protect set point, the drain valve opens.
t *O
Master standby mode,
the master controller of a multiple-
tank system is in Standby mode and, therefore, demand is 0 for all
humidifiers in the multiple-tank system.
t *O
Drain tank mode,
the automatic drain valve (if so equipped) opens
and the tank drains. All humidifier operation is suspended, and the
drain valve remains open until the unit is taken out of Drain tank mode.
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Test outputs
and
Test run
modes.
Space RH
--
0
100
%
RH set point
35
0
100
%
Input signal
--
0
10
VDC
--
0
20
mA
Dew point
--
20
80
°F
--
-6
26
°C
Dew point
set point
50
20
80
°F
10
-6
26
°C
Steam demand
--
0
100
%
Displays steam demand as a percent of capacity
Steam output
--
0
100,000
lbs/hr
--
0
100,000
kg/h
Duct RH
--
0
100
%
Duct HL switch
--
Open
Closed
--
Duct HL
set point
80
0
100
%
Duct HL signal
--
0
20
mA
Tank
temperature
--
-240
265
°F
--
-151
129
°C
Tank temp
signal
--
0
2200
Ohms
Aux
temperature
--
-20
160
°F
--
-29
71
°C
Aux temp signal
--
4
20
mA
Note:
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