SPeCIfICaTIonS & DIMenSIonS
Table 2 – Humidifier Capacities
amperage
Voltage
Maximum steam capacity (gal/day)
11 .5
120V
11 .5
208V
20 .5
240V
23 .3
16 .0
120V
16 .0
208V
30 .0
240V
34 .6
Humidifier Shipping weight:
28 lbs
Humidifier operating weight:
23 lbs*
*As minerals precipitate unit weight can increase to approximately 30 lb .
When the Automatic Digital Humidifier Control (ADHC) detects RH below the set point, and provided the humidifier is turned on and the HVAC
system blower is operating, the internal controller in the humidifier energizes the electrodes and measures the current flowing through the water
between them . The controller adjusts water level in the canister via a fill valve and a drain valve to maintain current at either 11 .5 or 16 .0 amps .
The operating water level in the canister depends on the mineral content of the water which determines conductivity .
The ADHC has the ability to turn on the HVAC system blower if the homeowner or installer chooses to utilize that feature . See ADHC installation
manual .
SeQUenCe of oPeRaTIon
Table 1 – water Quality Guidelines
Conductivity (uS/cm)
of water connected to
humidifier
estimated grains/gallon
(prior to any water
softening)
Hardness (prior to any
water softening)
Canister behavior
Solution
0-125
0-3
Naturally Soft
Humidifier does not
function .
Installation not
recommended .
125-300
3-9
Naturally Soft
Long start up time .
Power with 240VAC, use
constant fan to decrease
time to reach full capacity .
300-500
9-15
Slightly Hard
Optimal performance
range .
Use hard or softened
water .
500-640
15-20
Moderately Hard
640-840
20-25
Hard
840-1250
25-36
Very Hard
Shortened canister life
due to scale build up .
Use softened water .
above 1250
36
Extremely Hard
Canister performance
degrades quickly .
Installation not
recommended .
4
