Envirovent ECO DMEV User manual

ECO DMEV
ECO DMEV SELV

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Fig.3
L
N
J2
GND
LS’
J1
LS
N
L
+17V
L
N
ECO dMEV
230Vac
50/60Hz
CT-17/18
230Vac
50/60Hz
0
+17V
DC
ECO dMEV SELV
TIME-DELAY
FUSE
125 mA
MAX.

6
Fig.4
J2
GND
LS’
J1
LS
N
L
+17V
CT-17/18
230Vac
50/60Hz
L
N
230Vac
50/60Hz
N
L
0
+17V
DC
ECO dMEV
ECO dMEV SELV
TIME-DELAY
FUSE
125 mA
MAX.

7
Fig.5
J2
GND
LS’
J1
LS
N
L
+17V
CT-17/18
230Vac
50/60Hz
L
N
230Vac
50/60Hz
N
L
0
+17V
DC
ECO dMEV
ECO dMEV SELV
TIME-DELAY
FUSE
125 mA
MAX.

8
Fig.6
L
N
J2
GND
LS’
J1
LS
N
L
+17V
L
N
230Vac
50/60Hz
CT-17/18
230Vac
50/60Hz
0
+17V
DC
ECO dMEV
ECO dMEV SELV
TIME-DELAY
FUSE
125 mA
MAX.

9
Fig.8
Fig.7
P2
+
-min.
P3
+
-HR%.
P2
+
-
min.

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 re-
duced physical, sensory
or mental capabilities
or lack of experience
and knowledge if they
have been given su-
pervision or instruction
concerning use of the
appliance in a safe way
and understand the
hazards involved. Chil-
dren shall not play with
the appliance. Cleaning
and user maintenance
shall not be made by
children without super-
vision.
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. Potentiometer
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-

11
ing, use a standard Ø100 mm duct.
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):
15 4
22 6
30 9
36 10
45
13
m3/h l/s S
54
15
SW dip switch
position
Constant
volume
T - HT - HTP
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.

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Fig.5- Wiring diagram to boost the fan
with a separate switch
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, turn the potentiom-
eter “P2” on the printed circuit board
as (fig. 7).
• Manufacture setting:1 minute
• To reduce the “run on” time, turn
anticlockwise (min: 1 minute)
• To increase the “run on” time, turn
clockwise (max: 30 minutes).
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.
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.
SETTINGS
The settings at manufacture are 60%HR
for humidity and 1 minute for timer.
The desired humidity level is select-
ed by means of a potentiometer “P3”
positioned on the printed circuit board
(fig.8).
• To increase the relative humidity
sensitivity turn anticlockwise (min.
60%).
• To reduce the relative humidity sen-
sitivity turn clockwise (max. 90%).
To set the timer, turn the potentiom-
eter “P2” on the printed circuit board
(fig.8):
• To reduce the “run on” time, turn
anticlockwise (min. 1 minute).
• To increase the “run on” time, turn
clockwise (max: 30 minutes).

13
SPECIFIC RECOMMENDATIONS:
• If you change the settings of the
extract fan you have to handle the
potentiometers in the printed cir-
cuit board. These potentiometers
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.
• 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 H model,
fitted with a manual pull cord to oper-
ate the boost when the humidity 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 fitted.
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 tam-
pering would automatically cancel
the EnviroVent guarantee. If you de-
tect any fault, contact EnviroVent on
01423 810810.
If you have any problems, please call
our dedicated Technical Team on
0345 27 27 810.

14
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 deposit all packaging in the appro-
priate recycling bins. If your device is
also labeled with this symbol, please
take it to the nearest Waste Manage-
ment Plant at the end of its servicable
life.
EnviroVent reserves the right to alter speci-
fications without notice.

15
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 0345 27 27 810. 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
EnviroVent House
Hornbeam Business Park
Harrogate
Hg2 8PA
01423 810 810
[e-mail]
www.envirovent.com
Ref. 9023025208