3
MTD-ERV 350 Methods of Operation
The
EG
A
I
C
H
FilterJ
B
F
D
áPolluted air is drawn off by the exhaust air fan (A) from, for example, the kitchen, toilet and shower (B).
áThe heat exchanger (C) absorbs the heat from the exhaust air.
áThe supply air fan (D) draws in fresh air from outside (E).
áThe heat exchanger (C) heats up the intaken air using the heat absorbed from the exhaust air.
áIf a moisture exchanger is installed (option), moisture is also transferred from the exhaust air to the sup- ply air (for further information, see section 2.1.6).
áThe heated fresh air is delivered into the living rooms and bedrooms (F).
áThe now cooled polluted air from the kitchen, bathroom and toilet is discharged into the atmosphere (G).
áThe bypass (H) allows the exhaust air to be discharged to the atmosphere without passing through the heat exchanger so that no heat is transferred to the fresh air (for further information, see section 2.1.3).
áThe preheater (I) (option) ensures preheating of outside air so that balanced ventilation with heat recov- ery is assured even with moderate to severe frost (up to 150 m³/h at
áThe
The balanced ventilation system contributes to energy saving, a healthy room climate and an optimum living climate and prevents problems with moisture.
3.4. Additional Options
Only for
Please refer to the identification plate on the top of the
These are external devices that can be connected to the
3.4.1. Preheater in MTD-ERV 350
All
350)are equipped as standard with a preheater. All other
The preheater is a heating element that is in- stalled in the outside air duct of the
The advantage of the preheater compared with the standard frost protection system is that balanced ventilation can be maintained even in the event of frost. In the event of a frost risk, the intake of out-
Function of the System 19