homevent MORI dMEV II 150HT Instruction Manual

Installation &
Maintenance Manual
MORI dMEV II 150HT
De-Centralised Mechanical Extract Ventilation Fans
Read this manual carefully before using the product and keep it in a
safe place for reference.
This product was constructed up to standard and in compliance with regulations
relating to electrical equipment and must be installed by technically qualified
personnel. The manufacturer assumes no responsibility for damage to persons or
property resulting from failure to observe the regulations contained in this booklet.
PRECAUTIONS FOR INSTALLATION, USE & MAINTENANCE
• The device should not be used for applications other than those specified in this manual.
• Aer removing the product from its packaging, verify its condition. In case of doubt, contact a qualified technician. Do not leave packaging
within the reach of small children or people with disabilities.
• Do not touch the appliance with wet or damp hands/feet.
• 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.
• Do not use the product in the presence of flammable vapours, such as alcohol, insecticides, gasoline, etc.
• If any abnormalities in operation are detected, disconnect the device from the mains supply and contact a qualified technician immediately. Use
original spare parts only for repairs.
• The electrical system to which the device is connected must comply with regulations.
• Before connecting the product to the power supply or the power outlet, ensure that:
- the data plate (voltage and frequency) correspond to those of the electrical mains
- the electrical power supply/socket is adequate for maximum device power. If not, contact a qualified technician.
• The device should not be used as an activator for water heaters, stoves, etc., nor should it discharge into hot air/fume vent ducts deriving from
any type of combustion unit. It must expel air outside via its own special duct.
• Operating temperature: 0°C up to +50°C.
• The device is designed to extract typical household air only, i.e. without excessive grease, soot, chemical or corrosive agents, or flammable or
explosive mixtures.
• Do not leave the device exposed to atmospheric agents (rain, sun, snow, etc.).
• Do not immerse the device or its parts in water or other liquids.
• Only turn off the power supply to the unit whenever a malfunction is detected or in the case of inspection, cleaning or maintenance. Prolonged
and/or repeated power interruption to the unit (any period more than 72 hours) can create a health and safety hazard, damage components and
will invalidate any warranty.
• For installation an omnipolar switch should be incorporated in the fixed wiring, in accordance with the wiring regulations, to provide a full
disconnection under overvoltage category III conditions (contact opening distance equal to or greater than 3mm).
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
• Do not obstruct the fan or exhaust grille to ensure optimum air passage.
• Ensure adequate air return into the room in compliance with existing regulations in order to ensure proper device operation.
• If the environment in which the product is installed also houses a fuel-operating device (water heater, methane stove etc., that is not a “sealed
chamber” type), it is essential to ensure adequate air intake, to ensure good combustion and proper equipment operation.
• Install the product so that the impeller is not accessible from the air outlet side as verified by contact with the Test Finger (test probe “B” of the
norm EN61032) in compliance with the current safety regulations.

2.
Ceiling Installation
• In order to guarantee the IPX4 degree of protection against moisture in case of ceiling installation, use the appropriate ceiling mount kit, which is
included in the box. Use only the rear entry hole for supply cables. If there is a possibility of condensation along the air discharge duct, provide
a drainage system to prevent condensation from discharging into the environment through the fan.
Attention: do not mount the product on the ceiling without this kit.
Window Installation
• In case of window installation it is necessary to use the appropriate window kit, which is not included.
• Attention: do not mount the product on the window without this kit.
INTRODUCTION
MORI dMEV II 150HT (fig. 1) is a decentralised mechanical ventilation unit designed to ensure air extraction, in small/medium sized rooms such as
bathrooms, toilets and kitchens.
Suitable for air discharge directly to the outside or in the presence of short ducted system. Wall, ceiling or window installation (fig. 2).
TECHNICAL SPECIFICATIONS
• Material: high quality, impact and UV-resistant ABS colour RAL 9010.
• Design front cover removable for cleaning without the use of tools.
• Rear reinforcement ring to prevent spigot deformation during installation.
• High efficiency aerodynamic fan with “winglet” blades to optimise quietness and efficiency.
• Single phase EC Brushless motor with integral thermal protection.
• Motor mounted on high quality ball bearings.
• The fan is double insulated: no earth connection is required.
• Trickle speed selectable during installation.
• Option to boost from trickle (or from off) through LS connection or pull cord.
• Option to comfort boost from trickle via intergal humidistat.
• IPX4 degree of protection.
• Power supply 220V to 240V~ 50Hz.
(fig. 1)
Performance curve Airflow
L/s
Power
W max
Sound
Pressure
dB(A) @ 3m
Ambient
Temperature
°C max
1 6 0.9 4
50
2 8 1.1 5
3 13 0.7 6
4 15 1.1 8
5 17 1.2 9
6 21 1.4 11
7 25 1.7 14
8 29 1.7 17
9 Boost - 50 6.8 35
Factory setting: 6l/s
220-240V. 50Hz. Air performance measured according to ISO 5801.
MORI dMEV II 150HT - Energy rating: C.

3.
VERSIONS
MORI dMEV II 150HT (Humidity control version)
The fan comes complete with an adjustable humidity sensor and adjustable timer. The humidity threshold is adjustable from 50% to 95% Relative
Humidity via a dedicated trimmer, and the timer is adjustable from 0 - 30 minutes via a dedicated trimmer (fig. 17).
The fan works at the selected trickle speed (or off) and can be boosted using the integrated pull cord switch or light switch. Once the boost switch is
turned off the fan will continue to run at the boost speed for the set period of time before reverting back to the trickle speed. There is also a comfort
boost triggered by a humidity level above the set threshold. The Comfort Boost flow rate is approximately half way between the pre-set Background
and Boost flow rate. Once the humidity level is below the set point the fan will continue for a factory set period of time before returning to trickle
speed.
To deactivate the humidistat function, turn the trimmer HY completely clockwise.
Pull Cord Operation: The pull cord works as the boost switch. Wire up as per diagram (fig. 16A).
External Switch Operation: To boost the unit with an external switch such as a light switch the pull cord should be disabled. To do this make sure
the pull cord switch is not on and simply cut the cord. The plastic caps on the wiring terminals will need to be removed to allow the switch wires to be
secured. Wire up as per diagram (fig. 16B).
External Switch and Pull Cord Operation: If the fan needs to be boosted via a pull cord and external switch the switch used must be a double pole
switch. This removes any interference between the fan and the light. Wire up as per diagram (fig. 16B).
TRICKLE SPEED SETTING
Trickle speed can be selected using the JUMPERS among different options. See fig. 18. Trickle speed can be also set to off. The JUMPERS are supplied
in a small plastic bag, under the transparent circuit cover.
STANDARD CONFORMITY
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).

4.
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
4
4
ceiling (accessory included in the box)
window (kit on demand)
wall
direct exhausting
perimetrical exhausting
short ducting
2014/35/EU Low Voltage Directive (LVD)
2014/30/EU Electromagnetic Compatibility (EMC), in conformity with the following
standards:
Electrical Safety
EN60335-1(2012)+A11+A13; EN 60335-2-80(2003)+A1+A2.
Electromagnetic Compatibility
EN 55014-1(2017); EN 55014-2(2015); EN 61000-3-2(2014); EN 61000-3-3(2013).
STANDARD CONFORMITY
INSTALLATION (Fig.2)
Perimetrical exhausting
Ceiling (accessory included in the box)
Direct exhausting Short ducting
Window (kit on demand)
Wall

5.
Ø149mm
3 4 5
6 7 8
Surface cable
H03VV-F ; H05VV-F
BASE/STD
2 X 0.5 ÷ 1.5 mm2
3 X 0.5 ÷ 1.5 mm2
T-HT
3 X 0.5 ÷ 1.5 mm2
4 X 0.5 ÷ 1 mm2
{
{
11a
13a
12a
10a
6
6
4 x ø 5 mm
9A
10A 11A
12A
SURFACE CABLE
H03VV-F ; H05VV-F
Ø10mm
2 X 0,5 ÷ 1,5 mm
2
3 X 0,5 ÷ 1,5 mm
2
3 X 0,5 ÷ 1,5 mm
2
4 X 0,5 ÷ 1 mm
2
{
BASE/STD
{
T-HT
Ø
d
13A
Ød
6
6
4 x ø 5 mm
9A
10A 11A
12A
SURFACE CABLE
H03VV-F ; H05VV-F
Ø10mm
2 X 0,5 ÷ 1,5 mm2
3 X 0,5 ÷ 1,5 mm2
3 X 0,5 ÷ 1,5 mm2
4 X 0,5 ÷ 1 mm2
{
BASE/STD
{
T-HT
Ød
13A
Ød
Ø10mm
6
6
4 x ø 5 mm
9A
10A 11A
12A
SURFACE CABLE
H03VV-F ; H05VV-F
Ø10mm
2 X 0,5 ÷ 1,5 mm2
3 X 0,5 ÷ 1,5 mm2
3 X 0,5 ÷ 1,5 mm2
4 X 0,5 ÷ 1 mm2
{
BASE/STD
{
T-HT
Ød
13A
Ød
4 x Ø5 mm
9a

6.
Recessed cable entry
H03VV-F ; H05VV-F
BASE/STD
2 X 0.5 ÷ 1.5 mm2
3 X 0.5 ÷ 1.5 mm2
T-HT
3 X 0.5 ÷ 1.5 mm2
4 X 0.5 ÷ 1 mm2
{
{
9b 4 x Ø5 mm
11b
16b
19
17 18
20 21
12b 13b
10b
15 16a14
The ceiling mounting gasket should be
sandwiched between the fan and the ceiling
ensuring that it is flat against the ceiling.
Included in the box.
For window mounting instruction please see the
individual installation manual.
+
-
TIMER
HY
+
-
+ higher humidity set point
JUMPER
INSTALLATION AIRFLOW
1 2 3
Through Wall 6L/s
Through Wall 8L/s
Through Wall 13L/s
  Through Wall 15L/s
Through Wall 17L/s
  Through Wall 21L/s
  Through Wall 25L/s
 Through Wall 29L/s
CLICK
= Jumper present

7.
ON
OFF
ON
OFF
24
27 28
26
22 23
MAINTENANCE / CLEANING
The unit should be cleaned regularly as explained in this leaflet to maintain performance and warranty cover. Cleaning should be carried out as and
when required but please note intervals between cleaning should not exceed 12 months. The installer should explain this cleaning regime to the
homeowner/occupier and ask the homeowner/occupier to keep a record of the cleaning done on this leaflet as this will be required to be provided
by the homeowner/occupier to claim against any product failure under warranty.
Year Required Maintenance
1Inspect, clean if required. Cleaning frequency dependent on installation (Typically 12months). See below.
2Inspect, clean if required. Cleaning frequency dependent on installation (Typically 12months). See below.
3Inspect, clean if required. Cleaning frequency dependent on installation (Typically 12months). See below.
4Inspect, clean if required. Cleaning frequency dependent on installation (Typically 12months). See below.
5Inspect, clean if required. Cleaning frequency dependent on installation (Typically 12months). See below.
25

8.
DISPOSAL AND RECYCLING
Information on disposal of units at the end of life.
This product complies with EU Directive 2002/96/EC.
The symbol of the crossed-out dustbin indicates that this product must be collected separately
from other waste at the end of its life. The user must, therefore, dispose of the product in
question at suitable electronic and electro-technical waste disposal collection centres, or
else send the product back to the retailer when purchasing a new, equivalent type device.
Separate collection of decommissioned equipment for recycling, treatment and environmentally
compatible disposal helps to prevent negative effects on the environment and on health and
promotes the recycling of the materials that make up the equipment. Improper disposal of the
product by the user may result in administrative sanctions as provided by law.

9.
WARRANTY
Our 5 year warranty is provided only to customers who purchased directly from us. If you purchased elsewhere then please contact them directly
and they will let you know their warranty procedure. Our warranty covers repair or replacement of defective goods only. It does not cover any
labour costs associated with defective product or component removal or installation, nor does it cover the cost of sending goods back to us for
inspection. Our warranty is subject to storage, installation, commissioning, inspection and maintenance having been carried out in accordance
with our Installation and Maintenance Instructions (supplied with each product) and which are also available to view, save or print from our website.
ErP DIRECTIVE - REGULATIONS 1253/2014 1254/2014
A Mark - Homevent
B Model - MORI dMEV II 150 HT
CSEC class -C
C1 SEC warm climates kWh/m2.a -11,1
C2 SEC average climates kWh/m2.a -25,5
C3 SEC cold climates kWh/m2.a -50,6
Energy label - No
DUnit typology -Residential - unidirectional
EType of drive -multi speed drive
FType of Heat Recovery System -absent
GThermal efficiency of heat recovery %N/A
H Maximum flow rate m3/h 195
I Electric power input at maximum flow rate W 6,8
J Sound power level (LWA)dBA 56
K Reference flow rate m3/h 195
L Reference pressure difference Pa 10
M Specific Power Input (SPI) W/m3/h 0,035
N1 Control factor - 0,65
N2 Control typology - Local demand control
01 Maximum internal leakage rate % N/A
02 Maximum external leakage rate %N/A
P1 Internal mixing rate % N/A
P2 External mixing rate % N/A
QVisual filter warning DIP1 N/A
R Instructions to install regulated grilles - check the instruction booklet
S Internet address for preassembly/disassembly instructions - www.homevent.co.uk
T Airflow sensitivity to pressure variations % N/A
U Indoor/outdoor air tightness m3/h 132
V1 AEC - Annual electricity consumption - warm climates kWh 0,3
V2 AEC - Annual electricity consumption - average climates kWh 0,3
V3 AEC - Annual electricity consumption - cold climates kWh 0,3
W1 AHS - Annual heating saved - warm climates kWh 11,9
W2 AHS - Annual heating saved - average climates kWh 26,2
W3 AHS - Annual heating saved - cold climates kWh 51,3

10.
NOTES

11.
NOTES

MORI dMEV II 150HT. ISSUE A. 03.21
Tel: [phone], Email: [e-mail]
46 Third Avenue, Pensnett Trading Estate, Kingswinford, West Midlands, DY6 7US, UK
www.homevent.co.uk