Envirovent ECO dMEV LC Instruction Leaflet

Start-up timer function:
In this operation, the “start-up timer
function” allows the fan to delay the
start-up for a period of 50 seconds. So
that, for example, the fan does not
switch on if the usage time of the
bathroom is less than 50s.
If you exceed the 50s, the fan
switches on, and when the light
switches off, runs on for the time set
by the timer.
This function is selected with the dip-
switch 8.
ECO dMEV HT LC
Models provided with an electronic
humidity sensor which can be adjusted
from 60% to 90 % RH (relative humidity)
and with a timer, adjustable between 1
and 30 minutes.
The selection of desired humidity level is
done with the dip-switches 4 and 5:
setting between 60, 70, 80 and 90 %RH
The selection of the run on time is done
with the dip-switches 6 and 7: setting
between 1, 5, 15 and 30 minutes
Continuous operation
1. Automatic operation (fig.3): the
extractor is connected to the main
supply with only two wires. The
extractor operates continuously at the
setting trickle speed. When the
humidity level in the room is higher
than the set level the fan is boosted to
high speed. When the humidity drops
below the selected level and after the
selected period set on the timer the
fan automatically returns to trickle.
2. Automatic operation with the facility to
override the humidity sensor and
make the extractor run in boost by
means of an external switch (fig.4a) or
the light switch (fig.4b), when the
humidity level in the room is lower
than the selected level. In this case,
the extractor operates in high speed
for the selected period set on the timer
after the light switch has been
switched off, and then goes back in
low speed unless the humidity level
exceeds the set point.
ATTENTION: When the humidity rate
is above the selected value, the
automatic option takes precedence
over the manual.
Specific recommendations:
- If the humidity is always above 90%
RH, the fan will always run at full
speed.
- If the humidity in the room is always
less than 60%, the fan will only
operate at trickle speed when running
in automatic operation.
If the fan never runs at boost:
- The setting of the humidity sensor is
at maximum. Change the setting
- The level of humidity in the room is
below 60% RH
If the fan always runs at boost
- The setting of the humidity sensor is
at minimum. Change the setting
- The level of humidity in the room is
above 90% RH
Intermittent operation
Automatic operation:
The extractor is connected to the main
supply with only two wires (fig.3). The
humidity sensor causes the extractor to

Envirovent ECO dMEV LC Specifications

General

Brand	Envirovent
Model	ECO dMEV LC
Category	Fan
Language	English