Elsteam KT Operator's Manual page 10

KT Electrodes Humidifiers
distance of 300 mm between the top of the steam output and the air duct ceiling must be observed
to avoid condensation on the ceiling itself.
Install a condensation tank with an output pipe - 50 cm. away from the steam distributor - at the
bottom of the air duct which is involved in the first steam injection, to avoid damaging of the air
duct due to humidistat or air fan breakdowns.
To recover from steam recondensing in the distributor and in the steam pipes, the distributor itself
must be installed above the steam output of the humidifier. The steam distributor in the air duct
must be slightly tilted (2°); you could automatically obtain this result mounting the Elsteam flange
with the little swelling (see draw) at the bottom.
Elsteam humidifiers are suitable for connection to air piping with a pressure of 100 m H20. If the
dynamic air pressure is higher, the performance of the Elsteam machine decreases. When the
pressure is more than 200mm H20, the humidifier drains all the water, stops to produce steam and
it goes on alarm mode.
Piping between the humidifier and the steam distributor must be installed to avoid condensation
which leads to gurgling in the room or in the air duct with a loss of efficiency; if the condensate
stops the steam pipe completely, the humidifier drains all the water from the steam cylinder and it
starts working again.
Piping must use the gravity force to drain the recondensed steam towards the boiler:
- avoid use of pipe size less than 40 mm inside diameter
- avoid sharp bends - curve diameter must not be less than 300 mm
- avoid to siphon the pipe, leading to condensation points
- obtain - if possible - an unifrom minimum gradient (10%) towards the humidifier, to
bring recondensed steam back towards the boiler
- use steam tubing and fittings suitable for temperature up to 120° C at atmo-sphere
pressure and thermally insulated
- the piping has to be supported by brackets mounted every 50 cm or contained in
plastic shaft.
Elsteam humidifiers don't need a separate condensation discharge tube.
If the humidifier steam output position is above the steam distributor in the air duct, 2 solutions
are suitable:
Elsteam S.r.l - via E. Fermi, 496 - 21042 Caronno Pertusella (va) - Tel.+39 02 9659890 - Fax +39 02 96457007
E-mail: info@elsteam.it - Web: http://www.elsteam.com
Ver. 20.2.EN 10