KA IMO 2021 6 V2.1

systemair 23
2.3.5 Connection of syphons
Caution
Discharge pipes from the negative pressure or positive pressure syphons may not be connected directly
to the sewage plumbing. The discharge of condensate into sewage plumbing must be arranged so that
water condensate freely discharges into a funnel-shaped collector and from there into the sewage
plumbing.
In no event may a negative pressure syphon and a positive pressure syphon be connected to a common
discharge pipe.
The syphon should be installed outside the unit. Discharge pipes must run such that they are pitched a
min.2%towardstheoutlet.
Theinstallationofasmallersyphoncanresultsinasuddenleakageofairandwater.
Overpressure or underpressure may occur in the section where condensate drainage is required.
Pa+ > P
0
Section has overpressure
Pa- > P
0
Section has underpressure
Caution
In the case of separate drains at the cooling register and the water droplet eliminator, the drains must
be connected and only then a syphon installed. The connecting pipes are not supplied by the device
manufacturer.
BesuretollthesyphonwithwaterbeforeunitCommissioning.
Standard syphon
Thegurebelowshowsanexampleofasyphonindisassembledformandacompleteoverpressuresyphononasingle
drain and with combined drains (exit over base frame).
Caution
Vertical pipes must be cut in height according to the instructions below.
Caution
The125mmbaseframeisnotsufcientforstandard.Aconcretebasewithaminimumheightof150
mm, additional feet, or a unit base frame with a height of 250 mm is required.