Daikin Modular Rotary, Инструкция по установке, использованию и техническому обслуживанию

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41
Drain and siphon
In correspondence with the humidification sections and the thermal exchange cooling coils, the air han-
dling units are equipped with a threaded drain that
protrudes laterally for about 80 mm
.
In order to allow a regular flow of water, each drain must be fitted with a properly sized SIPHON
(see fig. 14).
14
Drain siphon
Condensate
collection tank
Siphon
CONDENSATE COLLECTION TANK
With an upper fan head of about 100
mm and a total static pressure ex-
ceeding 1000Pa, increase the height
of the siphon by 10 mm every 10
mm of head and every 100Pa of to-
tal static.
IMPORTANT
M
aximum siphon le
vel
Siphon minimum height 100 mm
drain
valve
AIR GAP
min 25 mm
x
x+20 mm
2%
15
Drain siphon
To avoid overflows from the collection tank
and consequent flooding of the machine as
well as the room in which it is installed, the si-
phon must have a
purge valve
that allows the
removal of impurities deposited on the bot-
tom.
In order not to affect the operation of the
drainage system, siphons operating under
pressure must NOT be connected to others
operating under vacuum.
The drainage pipe to the sewerage network:
•
Must not be connected directly to the si-
phon
. This in order to absorb returns of air
or slurry and to make the correct outflow of
waste water visible.
• Must have a larger diameter at the machine
drain and a minimum inclination of 2% in or-
der to ensure proper operation.