HUMIDIST
A
T
ACU-STEAM HUMIDISTAT, version A
Features
State of Art digital RH sensor
ROOM or DUCT mounting
Reprogrammable Microcontroller
Potentiometer Set-point setting
Out-door temperature sensor for Set-point Reset
Green (ON/OFF) and Red (warning) status LEDs
Specifi cations
Set-point range. . . . . . . . . . . . . . . 20% to 50% Relative Humidity
Accuracy. . . . . . . . . . . . . . . . . . . . ±4.5%, without calibration
Linearity . . . . . . . . . . . . . . . . . . . . ±1% in the Set-point range
Differential % RH. . . . . . . . . . . . . ±2%
Outdoor Temp. Reset Range
between -9 ˚F (-23 ˚C) to 27 ˚F (-3 ˚C)
Outdoor reset Temperature vs. Set point change
28
˚F (-2 ˚C) and warmer
No change
27
˚F (-3 ˚C) to 23 ˚F (-5 ˚C) 42%
max,
22
˚F (-6 ˚C) to 18 ˚F (-8 ˚C) 38%
max,
17
˚F (-9 ˚C) to 12 ˚F (-11 ˚C)
34%
max,
11
˚F (-12 ˚C) to 5 ˚F (-15 ˚C)
30%
max,
4
˚F (-16 ˚C) to -2 ˚F (-19 ˚C)
26%
max,
-3
˚F (-20 ˚C) to -9 ˚F (-23 ˚C)
22%
max,
-9
˚F (-23˚C) and colder
20% max.
NOTE: these ranges can vary by ±2 %.
The Outdoor Temperature sets the maximum set point of RH internally.
If the Dial position is higher, the actual set point will be limited as above.
Summary of Contents for ACU-STEAM
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