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5.4 Trap
The effective trap head h (mm) must be greater than the maximum under- or overpressure at the
condensate connector (1 mm WC = 10 Pa).
•
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).
5.5 Hydraulic connection
h = 1,5 x p (mm WC) + 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.
Balsifon
Sifon
i
Heating coil (hydraulic connection example)
Admixing circuit
Benefits: good control characteristics, low risk of freezing.
Cooling coil (hydraulic connection example)
Diverting circuit
Benefits: constant flow temperature in cooling coil,
good dehumidification even at partial load.
ϑ
1 =
ϑ
2
Note: positioning valves close to the heat exchanger improves the control characteristics.
