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1
All Enervent ventilation units should be drained. If the
ventilation unit is equipped with active cooling, then
draining is mandatory.
When air cools down, condensate water can form on cold
surfaces. For example in winter time when warm and
humid inside air meets the cold heat recovery wheel, or
when warm outside air meets the cooling coil in the ven-
tilation unit (if applicable).
Draining condensate water
• The condensate water should be led in a falling, at
least Ø15 mm pipe or hose, through a water trap to a
oor drain or such.
• The pipe must at all times lie lower than the conden-
sate water drip pan / condensate water connection of
the ventilation unit.
• There must not be any longer horizontal sections on
the pipe.
• The condensation drain pipe must be insulated if
mounted in spaces where freezing can occur.
• Also duct coils used for cooling must be drained and
use a water trap.
• Each drain connection must have a separate water
trap.
• Two or more water traps can be connected to the
same drain pipe, provided they are connected
together downstream from the water traps.
• If using an S-type water trap, the height of the back-
water in the water trap should be minimum 50 mm
(pic. 1, dimension B). The height dierence between
the drain point and the water trap should be mini-
mum 50 mm (pic. 1, dimension A).
• Make sure there is always water in the water trap.
• Enervent recommends the usage of mebrane type
water traps that do not depend on water for sealing.
Enervent product code K900010010 (small).
Enervent product code K900010002 (large).
• Installation of K900010010 water lock. The water trap
should only be installed vertically. Remove the 1/4"
plug covering the drain connection in the ventilation
unit (pic. 2). Screw in the water trap rmly (pic. 3). Lock
the water trap in place with the provided self tapping
screw and sleeve (pic. 4). Install the screw right under
the water trap. Install a suitable hose to the hose t-
ting of the water trap.
The condensate water drain must not be directly
connected to a sewer pipe, but to a oor drain or
equivalent.
CAUTION
• Installation of K900010002 water trap. Install the water
trap to a 32 mm pipe and tighten the pipe connec-
tions. Observe the arrow on the water trap indicating
correct direction of ow. The water trap can be instal-
led either vertically or horisontally (pic. 5).
• The functionality of the drain, including the duct coil
drains, should be checked by pouring water into the
drain at every lter change.
A
B
2
3
4
5
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