Evaporative Cooling Humidifier
Installation Instructions and User Manual
www.neptronic.com
Page | 26
Step 2 - Mix disinfection solution
Mix the disinfection solution following the manufacturer's instructions.
The calculation of the volume to be treated should take into account the volume of the tank at the bottom of
the Evaporative Cooling Humidifier, but also the volume of all media cassettes.
Note: It may be necessary to clean the tank at the bottom of the Evaporative Cooling Humidifier
prior to disinfection if it is particularly contaminated or dirty.
Step 3 – Start the disinfection cycle
Add disinfection solution to tank at the bottom of the unit and allow mixing.
Go to step 3A in the Diagnostics menu, set the
Disinfection Time
and select
Yes
to start the disinfection
sequence.
The sequence fills the tank, and then runs the module(s) at 100% for the duration of the selected
Disinfection
Time
. It then performs an auto-drain sequence and returns to normal operation. If during the
Disinfection
Time
, the tank needs to be filled again, the timer will stop until the tank is filled.
Step 4 - Neutralise and rinse
It is possible that
the disinfectant
used
requires
neutralization
after application.
In case
neutralization
is required
by the manufacturer
, repeat steps
2 and 3 with
the neutralizing solution
.
Step 5 – Restart and new microbiological testing of water
Once steps
1-4
are
completed,
the air system (
central air
or
ventilation system
)
and the Evaporative Cooling
Humidifier
can
be restarted in auto mode.
A new
microbiological
test should be performed
immediately
after
to confirm that
the number of
heterotrophic
organisms
is less than
10,000
CFU /
ml
(
as per Table 9 on page 25)
De-scaling
If untreated
tap water
is used,
de-
scaling
of the Evaporative Cooling Humidifier may be required
. To avoid
accumulation
of
scale,
Neptronic
recommends using
RO water
whose conductivity is
between 100
and 550
micro S/cm. When using
city
water,
Neptronic
recommends
a visual inspection of
all parts of the
evaporative module
one
month
after commissioning
to
define
the
required
frequency
of de-
scaling
based on the
accumulation
of scale
observed
.
List
of
solutions
recommended
scaling:
Commercial
phosphoric
acid
.
De-scaling Method Statement
Step 1 - Preparation
Refer to the manufacturer's recommendations for concentrations to apply and the method of preparation of
the solution. When using phosphoric acid, do not exceed a concentration of 1 volume of acid for 10 parts
water.
Make sure that
the air system (
central air
or
ventilation system
)
is stopped
Make sure
the SKV Evaporative Cooling Humidifier
is stopped
.
CAUTION: When working with de-scaling solution, always wear appropriate personal protective
clothing, protective gloves, and eye protection.
Step 2 - Dismantle the Evaporative Module
Turn off and isolate electrical supplies to the unit.
Remove all media cassettes.
Remove the pump skid.
