When the humidifier control 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 a nominal 11 .5 amps . The operating water
level in the canister depends on the mineral content of the water which determines conductivity .
If the blower activation relay is installed, the humidifier control will turn on the HVAC blower when a call for humidity is made .
SeQUenCe of oPeRaTIon
STaRT-UP PRoCeDURe
1 . Once the supply water, drain, steam hose, electrical power and control wiring connections are complete, make sure canister is fully seated
into drain valve and three wire connectors on top of canister are secure . (High water probe wire and two interchangeable electrode wires .)
2 . Attach side panel and front door .
3 . Open saddle valve allowing water to flow to humidifier . Check for leaks .
4 . Turn humidifier control knob to OFF .
5 . Close main power switch energizing humidifier .
6 . Press On/Off button on humidifier . The On/Off light will illuminate green .
7 . Make sure the HVAC blower is operating and adjust the humidifier control dial up to initiate a call for humidity .
The Steam light will illuminate green indicating a call for humidity and the Fill light will illuminate green indicating the fill valve is open
allowing the canister to fill . You should also hear the water flowing . If water flows down drain while humidifier is filling, check for kinks in
hoses and make sure O-ring is properly seated in groove in drain valve .
8 . Once the Fill light turns off, to verify that the humidifier will drain properly, press the On/Off button to turn humidifier off . You may hear the
fill valve open allowing cold water to flow into the canister to cool the water in the canister . The Drain light will flash green for 15 seconds
then turn green for four minutes while the canister drains . Once the Drain light turns off, the drain cycle is complete .
9 . Set humidifier control to proper level .
10 . Press On/Off button to turn humidifier on .
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