Wolf KG Standard, Installation And Maintenance Instructions Manual

10

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Installation information

H

H

If the siphon is provided on site, establish the height of the siphon with reference 

to the adjacent diagram.

The effective siphon height H (mm) must be greater than the maximum under- 

or overpressure (in Pa) in the air handling unit (1 mmWC = 10 Pa).

The  height  differential  between  the  unit  discharge  and  the  siphon  overflow 

should also equal H (mm).

Double siphon

(on site)

Ball siphon

h

In order to drain away the condensate reliably, join a ball siphon to the condensate 

drain connector onto the drain pan for the cooler/direct evaporator and onto 

the KGX/KGXD plate heat exchanger pan. 

Please note that a siphon must be fitted to every condensate drain connector. 

It is not permissible to join several drains to a common siphon.

The ball siphon is self-filling. A float ball prevents air being drawn in when the 

system is dry, so the initial condensate created can fill the siphon. The ball also 

acts as a non-return valve and prevents the siphon from being completely drained.

In order to be able to fit the siphon, ensure that the 

foundation

 is of the correct 

height

.

The effective siphon height h (mm) must be greater than the maximum under- 

or overpressure at the condensate connector (1 mmWC = 10 Pa).

h =   1.5  x  p (mmWC)  +  50 mm (min.)

The siphon drain line must not be connected directly to the public sewage 

system, but rather must be able to run out freely. Vent longer drain lines to 

prevent condensate backing up in the line.

p

Under- or overpressure in mmWC  

according to appliance design

50 mm (WC)

Reserve (imprecision in design, evaporation)

1.5

Additional safety factor