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Ventilation unit with heat recuperation

DUOVENT

COMPACT RV

Siphon working height:

h = 10 +

(Δp / 10) …. (mm)

Δp … absolute value of vacuum or overpressure at a given location of the unit

In DUOVENT

COMPACT RV units, the condensate drain neck is located under the rotating exchanger in the unit vacuum part! I.e. in this drain

neck the absolute pressure in the unit is lower than the barometric pressure in the outer vicinity of the unit! When the siphon is not connected, air
is sucked in under the rotation exchanger from around the unit at a very high speed through the condensate drain (hole Ø 16 mm) the air sucked
into the unit will prevent the condensate from draining out of the unit!!!

Under the air cooler (unit code DX, DXr or DCC) the siphon is located in the unit overpressure part!

Vacuum siphon (SF-P 300)

- contains a ball that serves as a non-return valve for the correct function of the siphon not flooded with water and

prevents the penetration of odours into the unit. The siphon must be fitted to the unit gas-tightly via the enclosed rubber sleeve. Max. usable
vacuum 1100 Pa.

Overpressure siphon (SF-P 400 PR)

- the siphon must be completely filled with water to prevent the penetration of odours from the sewer into

the interior of the unit when it is shut down. Suitability of the overpressure siphon can be found by visual inspection. When the device is running
and started, the water must not be forced into the drain pipe after the siphon has been filled. Max. usable overpressure 1100 Pa.

Siphons are used individually for each condensate drain on the unit. The condensate drain behind the individual siphons of one unit assembly can
be connected to one pipe. Never connect the unit outlet necks by piping and then to single siphon. In winter, the outdoor units must be tempered
by a condensate route, including anti-freeze siphons, e.g. with electric heating cables. After mounting, fix the siphon so that it does not disengage
spontaneously due to the weight of the water inside.

5.2.8 CIRCULATION (MIXING) FLAP

The unit of MX variant features integrated mixing flap located in front of the rotating exchanger in direction of the exhaust air (ETA). This flap
allows you to efficiently mix part of the exhaust air with fresh air or allows the circulation mode of the unit. In this mode only inlet fan is in
operation. The circulation is mainly used for preheating or pre-cooling to the desired temperature. Circulation mode requires fitting the unit with
additional inlet flaps (KL must be specified in the unit code).

Circulation (mixing) flap actuator is available after disassembly of the central panel of operating side fixed to the clamps.

Types of actuators for the circulation or mixing flaps:

circulation (mixing) flap

Unit type

circulation flap

mixing flap

DUOVENT

COMPACT RV 800

CM24-SR-L(R)

DUOVENT

COMPACT RV 1800

LM24A-SR