Trap; Minimum Clearances - Wolf CFL-WRG Installation And Maintenance Instructions Manual

Trap

Minimum clearance between
outdoor air intake and exhaust
air outlet to prevent an
"air short circuit" (DIN 13779)
3065065_201704
7. Installation / siting
The effective trap head 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.)
p = Under- or overpressure in mmWC acc. to appliance design
50 mm (WC) = Reserve (inaccuracy in design, evaporation)
1.5 = Additional safety factor
Do not connect the trap drain line directly to the public sewage system. It must
be able drain off freely. Vent longer drain lines to prevent condensate backing
up in the line (provide additional opening in trap drain line).
Outdoor air
Exhaust air
h
Supply air
Extract air
13