11
4 - WATER CONNECTIONS
4.11 CONDENSATE DISCHARGE
The condensate must be dispersed to avoid damages
to persons and property .
• Unit discharge fitting : the connection must avoid the
transmission of mechanical stresses and must be
performed paying attention to avoid the damaging of
the unit discharge fitting .
• Make a trap that, eliminating the depression caused
by the fan, stops the return of gas from the
discharge pipe
• The ducting must have an appropriate slope to allow
the downflow
• Anchor the ducting with an appropriate number of
supports.
Otherwise are generated ducting failures and air
pockets that prevent the downflow.
• Insulate the ducting and the siphon to avoid
condensate drippings
• Connect the condensate discharge to a rainwater
drain.
• Do NOT use sewerage drains, so as to avoid the
return of odours if the water contained in the trap
evaporates
• Finally, check that the condensate will drain
correctly by pouring water into the tray stud
Calculation of the siphon height
T = 2P
S = T/2
P is the pressure determinate by the fan in
correspondence of the drain pain (1mm c.a = 9.81 Pa)
P
H
S
T
Exsample :
P = 300 Pa = 30 mm
T = 2P = 60 mm
S = T/2 = 30 mm
A drain cock
B air vent
Supplied by the customer :
1 vibration isolators
2 ducting supports
3 shutoff valves
4.12 HEATING COIL - OPTION
1
23
A
B
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