Airwell Airflow 2020, Installation And Operating Manual

Page: 14 / 80

14
4 - WATER CONNECTIONS
4.1 CONDENSATE DISCHARGE
4.2 RISK OF FREEZE
The condensate must be disposed in order to avoid
damages to people and things.
•
Unit discharge fitting: the connection must not
transmit mechanical stresses and must be
performed taking care not to damage the unit
discharge fitting.
•
Provide a siphon that, eliminating the negative
pressure caused by the fan, prevents the air intake
from the discharge duct.
•
The ducting must have a min. slope of 5% to allow
the runoff.
•
Anchor the ducting with an adequate number of
supports.
•
Otherwise are generated duct failures and air locks
that prevent the runoff.
•
Insulate the duct and the siphon to avoid the
condensate drippings.
•
Connect the condensate discharge to a sewerage
drainage network. DO NOT use white water or
drainage networks to avoid the aspiration of odours
in the case of evaporation of water contained in the
siphon.
•
The connection must not be hermetic, so as to
allow the venting and avoid possible liquid returns.
•
Check at the end of the work, the regular
condensate runoff pouring some water in the tray.
Prevent the risk of freeze if the unit, drain or plumbing
connections of the humidifier can be subject to
temperatures close to 0°C.
For example:
•
safeguard the pipes with heating cables placed
under the insulation .
•
insulate the pipes.
•
perform the installation draining if unused for long
periods.
•
provide the antifreeze resistance in case of rigorous
temperatures.
A Condensate discharge fitting
Ø
26 mm
Condensate discharge pump - option
A
P
H
S
T
Example:
P = 100 Pa = 10 mm
T = 2P = 20 mm
S = T/2 = 10 mm
Siphon height calculation
T = 2P
S = T/2
P is the pressure determined by the fan in
correspondence of
the condense collection bowl (approx. 1 mm = 9.81 Pa)
Siphon