Envirovent Eco dMEV+ User manual

Eco dMEV+
Eco dMEV+ 17V

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10
Eco dMEV+ Centrifugal Extract Fan
The Eco dMEV+ extract fan range is
manufactured to the highest stan-
dards of production and quality as
laid down by the international Quality
Standard ISO 9001. All components
have been checked and every one of
the final products will have been in-
dividually tested at the end of the ma-
nufacturing process.
On receipt of the product we recom-
mend that you to check the following:
1. That it is the correct model.
2. That the details on the rating label
are those you require: voltage, fre-
quency...
The installation must be carried out in
accordance with Building Regulations
and the current I.E.E. wiring regu-
lations (BS7671) or the equivalent
standards in force in your country.
This appliance can
be used by children
aged from 8 years and
above and persons
with reduced physi-
cal, sensory or mental
capabilities or lack of
experience and knowl-
edge if they have been
given supervision or
instruction concerning
use of the appliance
in a safe way and un-
derstand the hazards
involved. Children
shall not play with the
appliance. Cleaning
and user maintenance
shall not be made by
children without su-
pervision.
INSTALLATION
IMPORTANT: Before installing and
wiring the unit, ensure that the mains
supply is disconnected.
Fig. 1b:
1. Front grille
2. Protection cover
3. Support
4. Connection terminals
5. Cable entry
6. Dip switches
7. Setting tool
8. Air filter
The Eco dMEV+ is suitable for wall or
ceiling mounting and can either ex-
tract directly to the outside or through
a ducted system (see Fig. 2).
Make a Ø105 mm hole in the wall or
ceiling.
If the unit is to be installed with duct-
ing, use a standard Ø100 mm duct.

11
Remove the front grille (1) and the
protection cover (2).
The unit can be mounted on the wall
or ceiling using the 4 raw plugs and
the screws provided.
Ensure that there are no obstructions
to the airflow and that the impeller
turns freely.
Introduce the mains cable through the
cable entry (5) and fix it to the wall.
Connect the electrical wiring as set
out below and then mount the protec-
tion cover and the front grille.
ELECTRICAL CONNECTION
The Eco dMEV+ is an extract fan de-
signed for a single phase supply, with
voltage and frequency as indicated on
the rating plate of the unit. The units
are manufactured with double electri-
cal insulation (Class II) and therefore
they do not need an earth connection.
The electrical installation must in-
clude a double pole switch with a con-
tact clearance of at least 3 mm.
The electrical cable must enter the
Eco dMEV+ through the cable entry
(5).
Once the cable has been introduced
proceed using the electrical wiring dia-
gram applicable to the selected model.
OPERATION
The Eco dMEV+ is an extract fan de-
signed to operate continuously at
low speed and constant volume. The
constant flow setting is made with
dip-switches placed on the electronic
circuit board (Fig. 1b):
Constant
volume
SW dip switch
position
m3/h l/s SW2 SW3 SW4
14 4 OFF OFF OFF
18 5 ON OFF OFF
29 8 OFF ON OFF
40 11 ON ON OFF
47 13 OFF OFF ON
65 18 ON OFF ON
The Eco dMEV+ may also operate at
high speed that is activated by: an ex-
ternal switch live or light switch (S, T
and HT versions) an integral humidity
sensor (HT and HTP versions) or an
internal pull cord switch (HTP ver-
sion).
ECO DMEV+ S
The Eco dMEV+ S can operate in two
modes:
Continuous operation on trickle set-
ting only (Fig. 3). Once the air vol-
ume is set the fan is connected to the
mains and the unit will operate con-
tinuously at this air volume.
Continuous operation on trickle with
the ability to boost on high speed.
The Eco dMEV+ is connected to an ex-
ternal switch or light switch.
When the switch is pressed, the fan
operates on full speed (not constant)
until the switch is turned off (light off):
Fig.4- Wiring diagram to boost the fan
with the light switch.
Fig.5- Wiring diagram to boost the fan
with a separate switch

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ECO DMEV+ T
This model is provided with an adjus-
table over-run timer. The timer allows
the fan to continue to operate for the
selected period after the switch has
been turned off (fig.5).
Fig.4 shows how to connect the fan
with timer through using the same
switch as the lighting circuit to allow
the fan to be boosted.
To set the timer, is done through
switch 6 and 7.
SW6 SW7 TIMER (Minutes)
OFF OFF 1
ON OFF 5
OFF ON 15
ON ON 30
ECO DMEV+ HT
Models provided with an electronic
humidity sensor which can be ad-
justed from 60% to 90 % RH (relative
humidity) and with a timer, adjustable
between 1 and 30 minutes. To set the
humidity sensor is done through SW8
and SW9.
SW8 SW9 HR Setpoint (%)
OFF OFF 60
ON OFF 70
OFF ON 80
ON ON 90
OPERATION
Case 1: Automatic operation (fig.3). In
automatic operation, the extract fan
operates continuously on the trickle
setting speed. When the humidity lev-
el in the room is higher than the set
level the fan will boost to high speed.
When the humidity drops below the
selected level and after the selected
period set on the timer the fan auto-
matically returns to trickle.
Case 2: Automatic operation as in
case 1 with the facility to override
the humidity sensor by means of an
external switch (fig.5) or light switch
(fig.4), when the humidity level in the
room is lower than the selected level.
In this case, the extract fan continues
to operate for the selected period set
on the timer after the light switch has
been turned off.
ATTENTION: When the humidity rate
is above the selected value, the auto-
matic option takes precedence over
the manual.
FACTORY SETTINGS
• Airflow: (8l/s)
• Timer: 1 minute
• Humidity: 60% RH
SPECIFIC RECOMMENDATIONS
• If you change the settings of the
extract fan you have to handle the
microswitches in the printed circuit
board. These microswitches are
fragile and must be handled with
care.
• Do not change the setting of the hu-
midity sensor out of the room whe-
re the fan will be installed.

13
• 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 ope-
rate on trickle speed when running
in automatic operation.
If the fan never runs on boost:
• The setting of the humidity sensor
has been set to 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 sen-
sor has been set to the minimum.
Change the setting.
• The level of humidity in the room is
above 90% RH.
ECO DMEV+ HTP
Eco dMEV+ version similar to HT
model, fitted with a manual pull cord
to operate the boost when the humid-
ity level is below the set point (fig.6).
When switching the pull cord off, the
fan will continue to operate on boost
for the time set by the timer then will
revert to trickle speed, unless the hu-
midity level exceeds the set point.
MAINTENANCE
IMPORTANT: disconnect from the
mains supply before carrying out any
maintenance.
The Eco dMEV+ extract fan is supplied
with a plastic filter.
Performance depends on cleaning
frequency and thus we recommend
cleaning, minimum every two months,
in accordance with fig 1a.
The Eco dMEV+ extract fan must al-
ways be operated with the filter fit-
ted.
Using the extract fan without the fil-
ter invalidates the warranty.
The external surface of the fan only
requires periodical cleaning using a
cloth lightly impregnated with a soft
detergent.
AFTER SALES SERVICE
We recommend you not to try to dis-
mantle or remove any other parts
than those mentioned as any tamper-
ing would automatically cancel the
EnviroVent guarantee. If you detect
any fault, contact our dedicated Tech-
nical team on 01423 810 810.
PUTTING OUT OF SERVICE AND
RECYCLING
EEC legislation and our con-
sideration of future genera-
tions mean that we should al-
ways recycle materials where
possible; please do not forget to de-
posit all packaging in the appropriate
recycling bins. If your device is also
labeled with this symbol, please take
it to the nearest Waste Management
Plant at the end of its servicable life.
EnviroVent reserves the right to alter speci-
fications without notice.

14
WARRANTY
The Eco dMEV+ products are covered by a two year warranty, subject to
the specified maintenance stated within this booklet.
If your fan has been supplied and installed by EnviroVent it is covered
with a full parts and labour warranty. If you detect a fault, please con-
tact us on 01423 810 810. You will be given guidance over the phone,
or an arrangement may be made for a member of our team to visit
(call-out charges may apply if a fault cannot be identified).
Supply Only
If your fan has been supplied by EnviroVent and installed by a third
party, it is covered by a parts only warranty. If you detect a fault and the
product has been installed in accordance to the fitting/wiring instruc-
tions, relevant guidance documents and by a competent and qualified
person (proof may be required), please return the product to the place
of purchase for a replacement.
Warranty Conditions & Exclusions
Please note that a receipt will be required as proof of purchase. Fans
bought from an unapproved source, including but not limited to auc-
tion websites, are not covered by the warranty.
• The system must be correctly installed and operated according to
the instructions contained in the user guide supplied.
• The warranty will be rendered invalid if the system has been ser-
viced, maintained, repaired, taken apart or tampered with by any
person not authorized, which in any way contradicts the instruction
guide set out by EnviroVent.
• The warranty does not cover accidental damage, misuse or abuse.
• The warranty is in addition to your statutory or legal rights.

EnviroVent Ltd
Harrogate West Business Park
Unit 1 Bardner Bank
Killinghall
Harrogate
HG3 2SP
01423 810 810
[e-mail]
www.envirovent.com
Ref. 9023025210