Envirovent MEV SPIDER Manuel utilisateur
MEV SPIDER
VENTILATION UNIT INSTALLATION GUIDE
AFTER INSTALLATION THE END USER SHOULD
KEEP THIS GUIDE FOR FUTURE REFERENCE
DO NOT THROW AWAY
MEV Spider
01423 859 395
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
1
Safety
Please read and understand these instructions before beginning
installation. The unit should be installed by a competent person.
Location
Check there is space for the unit in your chosen location including
room for access and future servicing of the unit. The unit must not
affect the operation of open-flue appliances. Consider the external
vent locations in relation to open-flues from appliances e.g. boilers.
You must ensure the external supply grilles are positioned away from
open flues to avoid drawing harmful gases into the property. Consult
your local regulations or a qualified gas engineer.
Users
This unit is not intended for use by persons [including children] with
reduced physical, sensory or mental capabilities or lack of experience
and knowledge, unless they have been given supervision and usage
instruction by a person responsible for their safety. Children should
be supervised to ensure they do not play with the unit. Cleaning and
user maintenance must not be performed by children.
AFTER INSTALLATION THE END USER SHOULD
KEEP THIS GUIDE FOR FUTURE REFERENCE
DO NOT
THROW AWAY 2
Electrical Connection
The unit requires a continuous electrical power supply. Connection to
the fixed wiring must be made outside the unit in a suitable location.
It must be possible for the unit to be disconnected from the mains
supply after installation. The unit must be earthed and a double pole
isolator having a minimum contact separation of 3.0mm must be
used to provide isolation for the unit, see wiring diagram on page 4.
The power cable running into the unit must remain the supplied
flexible cable [not a solid core lighting cable]. If the power cable
becomes damaged, it must be replaced by EnviroVent, an authorised
service agent for your region/country, or a similarly qualified person in
order to avoid a hazard. Do not remove or tamper with any electronic
components inside the unit.
All wiring must comply with Building Regulations and the current
IET Wiring Regulations (BS7671 in the UK) or equivalent standards for
other countries. The final installation should be examined and tested
by a qualified electrician.
The unit is considered to be suitable for use in countries having a
warm, damp equable climate. It may also be used in other countries.
Electrical power is to be supplied to the unit through a residual
current device (RCD) with a rated residual operating current not
exceeding 30mA.
This ventilation unit is for indoor installation only.
MEV Spider
01423 859 395
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
3
Diagrams
Overall unit
dimensions
and minimum
area required
for access/
maintenance.
646400
440440
357357
557557
698698
191988
The extract spigots are compatible with ø100mm duct.
The spigot to atmosphere is compatible with ø125mm duct.
ø125mm (x1)
ø100mm (x9)
AFTER INSTALLATION THE END USER SHOULD
KEEP THIS GUIDE FOR FUTURE REFERENCE
DO NOT
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Wiring
The local isolator must be connected to the mains as
part of the fixed wiring. Connect the cores of the power
cable to the matching terminals on the local isolator
(3A fuse spur or similar).
The black switch live core of the mains cable can be
wired to a switch input such as the supplied boost
switch or a light switch. When the switch is turned
on, the boost function is engaged. When the switch is
turned off, the unit will return to normal running mode.
In this configuration a triple pole isolator must be used.
MEV UNIT LOCAL ISOLATOR
LN
L
N
MAINS SUPPLY
(230V 50/60Hz)
POWER CABLE
SWITCH LIVE
(OPTIONAL)
Ls
Ls
BLUE
GREEN & YELLOW
BROWN
BLACK
BLUE
GREEN & YELLOW
BROWN
MEV Spider
01423 859 395
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
5
About the MEV Spider
The EnviroVent MEV Spider is a continuous mechanical extract
ventilation system designed to help create a fresh and healthy living
environment by drawing moist, stale air out of wet rooms, while
minimising the migration of humidity to other rooms.
The unit is normally fitted in a central location such as a hallway
cupboard, with ductwork running from the unit to the kitchen,
bathroom, en-suite, utility and other wet zones. The unit includes up
to nine possible extract spigot positions in order to extract air from
multiple locations.
The unit is suitable for houses, apartments, and communal properties
with a kitchen and up to 6 additional wet rooms. The unit is capable
of delivering a maximum airflow of 129l/s (465m3/h) and a maximum
system pressure of 450Pa. The unit is also covered by a five year
warranty.
The unit will help create a fresh, healthy living environment by
extracting moist stale air from the wet rooms, prevent condensation
and mould within the property.
The Intellitrac® humidity tracking function monitors the humidity
levels in the extracted air and will automatically increase the air flow
rate when the humidity levels rise. Once the humidity levels are lower
the air flow rates will return to the normal rate.
The MEV Spider includes a switch live function. The unit will enter
boost mode whenever the switch live input is engaged.
AFTER INSTALLATION THE END USER SHOULD
KEEP THIS GUIDE FOR FUTURE REFERENCE
DO NOT
THROW AWAY 6
Box Contents
• 1 x MEV Spider unit
• 3 x ø100mm Spigots
• 1 x Spigot blank cap
• 1 x User guide
• 4 x Screws 8g x 2.0”
• 4 x Steel washers
• 4 x Plasterboard plugs
• 8 x Adhesive foam pads
• 4 x Rubber sleeves
• 1 x Wireless remote control (MEVS-W units only)
• 1 x Wired boost switch (MEVS-H units only)
Pre-installation checklist
• Does the unit fit in the space where it will be installed?
• Is there room to connect ducts to the spigots without tight duct bends?
• Are there any obstructions above or below the locations where the
extract valves are to be fitted?
• Is the mounting surface strong enough to support the unit?
• Is the mounting surface level?
MEV Spider
01423 859 395
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
7
Installation
1. Hold the unit up to the chosen location (wall, floor or ceiling) and
ensure there is space for ducts and maintenance access.
2. Use the unit as a guide to mark the 4 fixing holes. Then remove
the unit and drill the fixings holes and insert a plasterboard plug into
each hole.
3. Insert a rubber sleeve into each of the four fixing points at the
corners of the unit. Then stick an adhesive foam pad above and
below each hole.
4. Use an 8g x 2.0” screw and a steel washer to attach each of the
four fixing points to the mounting surface. Do not over tighten the
fixing assembly.
1 2
3 4
CEILING
FLOOR
WALL
AFTER INSTALLATION THE END USER SHOULD
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DO NOT
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5
67
5. Select up to three 100mm extract spigot locations. If more than
three are required you will need to order extra spigots (see spares on
page 16). Slice around the edge of the chosen positions with a sharp
knife then knock out the blanks with a light tap and discard them. It
may be necessary to remove excess material with the knife.
6. If a spigot hole is removed in error use the spare blank provided to
cover the hole and glue it in place.
7. Push then twist a spigot into each of the cut holes and secure it to the
unit through the two screw holes with the self-tapping screws provided.
8. Ducts must be attached securely to the unit. For maximum
performance use rigid duct and a short length of flexible duct
(300mm) for final connections to the unit and the extract valves.
MEV Spider
01423 859 395
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
9
9. Fit a suitable low resistance external extract termination (e.g. a
roof vent or fixed louvre grille).
10. Fit adjustable extract valves in the chosen room locations.
11. Fit Ø125mm duct between the external termination and the MEV
unit. Fit Ø100mm duct between the extract valves and the MEV unit.
910
11
Extract
termination
Extract 1
Extract 2 Extract 3
Ductwork should be fitted in
accordance with the Domestic
Ventilation Compliance Guide and
follow any system designs that have
been produced for the property.
Ductwork to atmosphere or through
unheated spaces needs to be
insulated.
For efficiency, all ductwork should
be as large a diameter as possible
(internal spigots 100mm minimum,
external spigot 125mm minimum)
EnviroVent recommend fitting inline
filters to the extract valves.
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