Ecos
aire
®
CM Series Precision Air Conditioner Owners Manual
60
Ecos
aire
®
July 2007
Data subject to change without notice.
Humidifier (if any)
Some units may be equipped
with electrode-type humidifiers.
Access the humidifier as shown in
the diagram below.
IMPORTANT!
The electrode plugs
on top of
the cylinder must be pressed firmly
onto the electrode pins. If a plug is
loose, temporarily disconnect elec-
tric power and squeeze the plug
with pliers.
Loose plugs will
cause overheating and prossible
melting of the plugs.
Components burnt due to loose
connections are not covered under
warranty.
Open the field-installed shut-off
valve on the water inlet line. Push
the AUTO/ON/OFF/DRAIN switch
to “ON.”
The humidifier light will come on.
The humidifier contactor and the fill
solenoid valve will energize, slowly
filling the cylinder with water. The
water level will rise until the current
draw through the electrodes reach-
es the pre-set value determined by
the capacity control setting.
Normally, this is before the water
reaches the top.
While the cylinder is filling, locate
the three power leads on the top of
the cylinder and check that the line
voltage is present at all leads.
IMPORTANT!
Low conductivity water will
cause the water level to rise to
the top of the cylinder activating
the High Water Level alarm light.
This is NOT a concern. The
cylinder will continue to heat,
boil and refill in short cycles
until the mineral concentration
within the cylinder increases to
normal. As it does, the water
level will also drop to normal.
The water cylinder will begin to
boil shortly after it stops filling. As
the water boils away, the water
level in the cylinder will drop.
When it has dropped a preset
amount, the fill valve will open to
refill the cylinder. Optimum con-
ductivity is automatically main-
tained with short drain cycles only
when necessary.
Check the current on all power
lines to the cylinder. The current
will vary with water level. The max-
imum current will be reached just
as the fill valve closes and should
agree with the nominal amps listed
below.
Should normalization of the unit
be required immediately after start-
up, the installer may speed up the
process by artificially increasing
water conductivity. During a fill
cycle, the installer should dissolve
half a teaspoon of table salt
(NO
MORE)
in a cup of water and add it
to the cylinder by means of the fill
cup attached to the plumbing sec-
tion.
Open the plumbing compartment
and add salt solution through the
cylinder outlet. Excessive amounts
of salt will result in erratic operation
of the unit; however, normalization
of the unit will occur automatically
through the solid-state control
sequence.
Startup Humidifier
Humidifier Amp Draw
Unit Voltage
Humidifier Nominal Amps
200 v
18.5
230 v
16.1
460 v
8.0
Humidifier
ST
ARTUP
SAMPLE
Number and location of
component
s may vary
.
