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desired current is reached, the fill valve (1) will close and
the water will then begin to warm and produce steam. If the
water reaches the cylinder full probe (9) or if current rises
too much, the drain pump (11) will be activated to drain
away some water and reduce the current flow to accept-
able levels. Note that, any time the drain pump is activated,
the tempering valve (10) will be opened for tempering the
hot drained water down to 140º F (60ºC) in accordance to
local and national standards.
Periodically, based on the incoming water conductivity, the
unit will run drain pump (11) and drain some water to re-
duce the mineral concentration. A strainer (12) in the cylin-
der helps to prevent mineral debris from jamming the drain
pump (11).
In case the HCSteam−16/−35 humidifier remains powered
but idle, i.e. without producing steam, for more than 48
hours (2 days), the cylinder will be emptied to not have
stagnant water inside.
If there is no water in the cylinder, there will be no current
flow and no steam production. The electrodes do not burn
out, but they will eventually become completely coated
with mineral and the cylinder will then need to be replaced.
Cleaning cylinders may cause electrode damage, there-
fore voiding its warranty. See maintenance section on
Page 21.
Installation
Installing the nozzle
The HCSteam−16/−35 humidifier’s nozzle must be installed
onto the ductwork near the humidifier. Refer to the Steam
Distribution section (Page 8) for information on how to
properly locate the nozzle, for dimensions for the hole
mounting pattern, and for connections to the humidifier
and to the condensate drain. (Also see figure 6 for a typical
installation diagram.)
Drill a 2−1/4" (57 mm) hole in the ductwork at the selected
location for inserting the nozzle into the duct work. Position
the nozzle in the hole. Mark and drill 1/16" mounting holes
and use self−tapping sheet metal screws to attach the
nozzle to the duct.
Removing the humidifier front cover
The front cover is secured by four screws located at the
four corners of the unit. Using a Phillips head screwdriver,
loosen the four cover screws and then pull the front cover
away from the back part of the unit (see figure 3).
Installing the humidifier
CAUTION
Do not install the humidifier in an location that is
within the reach of children.
If unit must be located where any leaking water
could cause damage, an auxiliary drain pan is rec-
ommended.
Do not install humidifier in a location where freezing
temperatures may occur. Water supply and drain
lines may freeze causing water damage.
Positioning the humidifier
The HCSteam−16/−35 humidifier has been designed for
on−wall installation. The simplest and most efficient instal-
lation would have the humidifier installed just below the
duct where the steam nozzle is to be installed. This mini-
mizes steam hose length and the amount of condensate.
Certain clearances must be maintained around the
unit for safety and maintenance (see table 1 on
Page 2).
.
If present, remove packing as shown in figure 4.
REMOVE PROTECTIVE
FILM FROM COVER
Figure 3. Removing the front cover
REMOVE PACK-
ING BEFORE
INSTALLING
LATCH THE CYLINDER
CLAMP
REMOVE PACKING
BEFORE INSTALLING
REMOVE
RESTRAINT
BEFORE
INSTALLING
REMOVE PRO-
TECTIVE FILM
FROM DISPLAY
Figure 4. Removing Packing
