Envirovent Mr Venty ECO2 Loft User manual

ECO2Loft & ECO2Twin
INSTALLATION GUIDE FOR ENGINEER / INSTALLER

1
ECO2Loft & ECO2Twin
0345 27 27 810
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INSTALLING THIS UNIT, CALL US ON:

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Safety
IMPORTANT
Be sure to have read and understood
these instructions before beginning
the installation process.
Smoke Detectors
It is important that any open side of
the plastic diffuser is not positioned
within 1m of a smoke detector. If the
diffuser cannot be repositioned, up
to two sides of the diffuser may be
closed off using the plastic blanking
plate supplied (Loft only) so that
the open sides face a minimum
1.5m unobstructed path away from
the detector. In 3 floor properties a
metal fire diffuser should be fitted at
minimum of 1m from the detector
(see page 9).
SAFETY AND RECOMMENDATIONS
• AllwiringmustcomplywithBuilding
Regulations and the current I.E.E.
Wiring Regulations (BS7671) or
the equivalent standards for your
country. The final installation
should be examined and tested by
a qualified electrician.
• Precautions must be taken to avoid
the back-flow of gases into the
dwelling from the open flue of gas
or other fuel-burning appliances.
• Make sure the mains supply
complies with the rating label for
voltage, frequency and phase.
• This appliance can be used by
children aged from 8 years and
above and persons with reduced
physical, sensory or mental
capabilities or lack of experience
and knowledge if they have been
given supervision or instruction
concerning use of the appliance
in a safe way and understand
the hazards involved. Children
shall not play with the appliance.
Cleaning and user maintenance
shall not be made by children
without supervision.

3
ECO2Loft & ECO2Twin
0345 27 27 810
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
Thank you for choosing EnviroVent
The fastest growing ventilation company in the UK.
You are about to install a product that is designed to outlast the life-cycle of the building.
Once installed the unit will operate continuously for 5 years and beyond without a major
service. Please therefore ensure that this product is treated with care and installed
properly i.e. for the life of the building. If the unit is mishandled you might break it! This
invalidates the warranty.
And remember, if you have any problems please call our dedicated Technical Team. We
are always pleased to help and in an emergency will come out to site quickly, completely
free of charge.
HOTLINE: [phone]
Made in Harrogate UK

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Pre-Installation Checklist
Check that the loft has adequate cross flow
ventilation.
Check that all party walls are intact, seek
advice if the wall is missing or broken.
Check that any flue which passes through
the loft is not damaged, seek advice if the
flue is in a poor state of repair.
Check for any flued appliance which may
draw air from the loft, report to the client.
Check for any holes in the ceilings which
may allow leakage of air to the loft and
repair as appropriate.
Check that the water storage tank is
covered.
Description Item
8 X FOAM PADS
4 X PENNY WASHERS
4 X PLASTER BOARD
PLUGS
4 X WOOD SCREWS
(10 X 1.5)
4 X WOOD SCREWS
(10 X 3)
4 X WOOD SCREWS
(8 X 1)
4 X WOOD SCREWS
(8 X 1.5)
ROLL OF INSULATION
TAPE
FIXING KIT

5
ECO2Loft & ECO2Twin
0345 27 27 810
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INSTALLING THIS UNIT, CALL US ON:
Installation Diagrams
STANDARD INSTALLATION
Also see page 8 for ECO2Twin installation
method, and page 9 for installations in 3 storey
properties.
Installation diagram for the ECO2Loft Unit
UNIT DIMENSIONS
Dimensions of the ECO2Loft Unit - 470 x 405 x 372mm
*Unswitched fuse spur
fitted with 3 Amp fuse
230V A.C.
3 core mains lead For fixing instructions, please
refer to the fixing instructions
(Fig. 1) on page 6
405mm
Heater enable/disable
switch (Heater version
only) volt-free
*Subject to capacity, it is possible to connect the ECO2Loft Unit with heater to a lighting circuit. If in doubt,
wire through a ring main supply. Ensure the volt-free heater enable/disable switch is fitted in a suitable
position for the user. This appliance must be earthed.
372mm
470mm
650mm x 50mm x 25mm batten
Ceiling joists
Contents for unit
1 x Cardboard template
1 x Diffuser
1 x Fixing kit (page 4)
1 x Unswitched fused spur
1m x Ø200mm Flexi duct
Additional contents
for unit with heater
1 x Heater enable switch

6
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Installation Instructions
FIRST STAGE
Position a dustsheet beneath the site you have
chosen for cutting the hole for the diffuser. Protect
your lungs with a mask. Enter the loft space with
the ECO2Loft and check there are no obstructions
to your chosen position for the diffuser. Using the
template supplied mark the hole for the diffuser
and cut the 220mm hole in the plasterboard
(see page 9 for additional ECO2Twin installation
instructions). N.B The unit is designed to be taken
apart and re-assembled to overcome restricted
access through small loft hatches.
SECOND STAGE
Position the ECO2Loft on 50mm x 25mm wooden
battens (not supplied) laid across the joists or
raised platform if the insulate is thicker than the
joists so that the ducting between the unit and the
diffuser is not impeded. Lightly screw the drilled
battens to the joist through the rubber mounts and
metal penny washer provided. Fit the ducting to
the unit spigot using half of the tape provided.
THIRD STAGE
Push ducting through the hole in the ceiling.
Return to the hallway and connect the ducting
onto the neck of the diffuser using rest of the
tape provided. Ensure that the diffuser is aligned
correctly with the walls of the hallway. Adjust if
necessary. Fix the diffuser in position using
plasterboard plugs and the screws provided.
FOURTH STAGE
The ECO2Loft must only be installed by a
competent person and should be connected
to an electrical supply in accordance with the
current electrical regulations. A disconnection
device should be used in the fixed wiring.
FIFTH STAGE
Check the unit is working correctly. Set the unit’s
controls according to the house size and check
that the filters are securely in place.
SIXTH STAGE
Method of operation: Adjust the settings on the top
of the unit by pressing the house setting button.
By pressing the button, the correct ventilation
rate for the size of the house can be selected i.e.
if the unit is on SMALL / TRICKLE and the button is
pressed, the unit will then switch to MEDIUM.
Similarly, if the unit is on BOOST and the button
is pressed, the unit will then switch to SMALL /
TRICKLE.
As a rule of thumb, the setting on the ECO2Loft should match the number of bedrooms i.e. 1 - 4
PRESS BUTTON
LARGE
PRESS
BUTTON
PRESS
BUTTON
PRESS
BUTTON
SMALL /
TRICKLE MEDIUM BOOST
10 x 3 screw
Penny washer
Foam pad
Foam pad
50mm x 25mm
batten with 20mm
clearance hole
Existing joist
Fig.1 Fixing Instructions

7
ECO2Loft & ECO2Twin
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Installation Instructions
SIXTH STAGE cont. - Wireless units only
To pair additional remote control switches:
1. Turn the unit off at the isolation point.
2. Restore power; for 20 seconds from restart
the unit will be in pairing mode.
3. Press the remote button once within the 20
seconds and the control will pair to the unit.
4. Successful pairing is indicated by a green
light on the control.
N.B: When the battery needs replacing, unscrew
the front cover. The battery is located on the
back of the cover.
Battery type - 3V Lithium, CR2032.
To change speed setting
Next press moves the unit to the
next speed and so on. When the
speed is chosen the LED remains
on for a few seconds
On commission the unit will
default to the trickle flow rate
with heater enable on
Press button once, to indicate
current fan speed and heater
status. LEDs stay on constant
for a few seconds

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If the two LEDs situated just
above the button flash alternately
red and green (when it is
pressed) the control will need
to be reprogrammed. Call your
maintenance company or
EnviroVent for advice.
Heater enable ON
Auto LED stays on constant for a few seconds.
Heater enable OFF
Auto LED flashes for a few seconds.
Boost
(Green)
(Green)
Remote Control out
of range (Red)
Heater enable
(Red)
Remote Control in
range (Green)
LED Colours
Constant Red
Flashing Red
Constant Green
For heater enable/disable
Press button for five
seconds turns heater
enable off. LED will flash
red for a few seconds
Press button for five seconds
turns heater enable on. LED
will show constant red for a
few seconds

9
ECO2Loft & ECO2Twin
0345 27 27 810
SHOULD YOU ENCOUNTER ANY PROBLEMS
INSTALLING THIS UNIT, CALL US ON:
ECO2Twin Installation Instructions
Twin Spigot
This addition to the fixing instructions explains the methodology of installing the twin spigot system.
This variation to the ECO2Loft is necessary where:
The hallway is very small, particularly when there is limited heating in the house
The loft hatch fills the hallway ceiling
Air is required to be diffused into a remote zone, such as a bedroom
Cut two 105mm holes in the ceiling in the positions chosen where air is required to be delivered.
Use the distance from the ECO2Loft Unit to each hole to balance/favour airflow:
i. Equal air supply required - diffusers equidistant from unit
ii. More air supply required in hallway - short run to diffuser in the hall
(This is the recommended method of installation)
Connect the flexi ducting to the twin spigot and hold in position with a cable tie on each outlet.
ECO2Twin Installation
Example of installation: More air is required in hall - shorter run
HALL
Vent One
BEDROOM
Vent Two
Contents for unit with heater
1 x Fixing kit
1 x Unswitched fuse spur
2 x Mini diffuser
1 x Cable tie
2m x 3m x 100mm Flexi duct
Additional contents for
unit with heater
1 x Heater enable switch

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Installation Instructions
Installations in 3 storey dwellings
ECO2Loft
Fire Installation Kit
For installations in 3 storey dwellings, it is
necessary to fit an ECO2Loft with a fire kit,
EnviroVent part number: KIT-PIV-SMOKE. It is
important to follow the installation instructions
that come with the kit.
Installation checks and maintenance
The fire system should be checked at installation
to ensure proper function. The diffuser should be
periodically checked to ensure they have not
been activated and that they are still delivering
air into the property. In the case of a fire, the
system should be thoroughly checked.
Smoke alarm
For installations in 3 storey dwellings the ECO2
Loft should be wired in such a way that it shuts
down completely when the smoke alarm system
is triggered. This can be done by linking the
ECO2Loft to relay type smoke alarm (N/C), see
schematic. When the relay is triggered by the
alarm, power to the unit will be interrupted and
the unit will stop. When the alarm resets, power
will be resumed to the unit and the ECO2Loft will
resume working at its previous settings.
Ø125mm metal fire diffuser
ECO2Twin
For installations in 3 storey dwellings, it is necessary to fit an ECO2Twin with a fire kit, EnviroVent part
number: KIT-PIV-SMOKE.

EnviroVent Ltd
EnviroVent House
Hornbeam Business Park
Harrogate
HG2 8PA
T / 0345 27 27 807
F / 01423 301 022
E / [email protected]
W / envirovent.com
E&OE | MKT ENV246-V7-08.03.17
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simple installation and a long
trouble free life for the user.