User manual

Installation, Operating & Maintenance Manual
5
How The Humisteam Works
HumiSteam is an electrode humidifier. It produces steam for humidification by passing electr ode current through the water i n the steam
generator cylinder bet ween met al electr odes. There are no heater el ements . Steam output is directly proportional to the conducti vity of the
water, and the amount of electrode immers ed in the water.
On a call for humidity, the HumiSteam controller will open the water fill val ve
(1) and allow water to enter the system. A fl ow restrictor (2) prevents the
unit from filling too quic kl y or with too much press ure. The water flows up
the fill tube (3) and i nto the fill cup (7), where it flows over the conducti vity
probes (6), which feed the water conduc tivity back to the controller for
anal ysis. Water then flows over the dam i n the fill cup (7), which creates a
1” air gap to prevent bac kflow of c ont ami nated water into the feed lines, and
through the fill tube (4) and int o the bottom of the steam cylinder (11).
As the water fills the c ylinder, it will reach the el ectrodes (10) and c urrent
will begin to flow. As the water continues to fill the cylinder, the current will
increase, and this is monit ored by an amperage transfor mer pl aced on one
of the power wires (9). When the desired current is reac hed, t he fill valve
will close (1) and the water will then begin t o warm and produce steam. If
the water reaches the c ylinder full probes (8) prior to reaching the desired
current level, t he fill valve (1) will be cl osed to prevent overflow. I f the
current rises too much as the water fills the c ylinder, the drain val ve or
pump (13) will be acti vated to drain away some water and reduc e the
current fl ow.
Periodicall y, based on the incoming water conducti vity, the unit will drai n
some wat er to r educ e the mineral concentrati on. A str ainer (12) in the cylinder helps to prevent mineral debris from jamming the drai n
val ve (13).
If there is no water in the c ylinder, there will be no current flow and no steam production. T he electrodes do not burn out, but they will
eventuall y bec ome compl etel y coated with miner al and the c ylinder will then need to be r eplac ed or cleaned.
UE 001 through UE 015
No. Description
1 Steam generator cylinder
2 Water drain val ve
3 Power contac tor
4 Fuses
5 Power transfor mer
6 Relay board
7 On/Of f and Manual drai n s witch
8 Wiring terminal bloc k
9 Water fill val ve
UE 025 through UE065
No. Description
1 Steam generator cylinder
2 Water drain pump
3 Water fill val ve
4 Amperage transf ormer
5 Power contac tor
6 Power transfor mer
7 Relay
8 Fuses
9 Wiring terminal bloc k
10 Cable rac eway
11 On/Of f and Manual drai n s witch