Vectaire MBOX 125/2DC, MBOX 125/2DC204 Installation, Operating And Maintenance Instruction

Slimline, whole house, mechanical extract ventilation - MEV

Microbox 125/2DC

This MEV - MBOX125/2DC - is an
efficient, low energy solution to
controlling condensation and pollution
by providing low level continuous
ventilation in a kitchen and up to four
wet rooms, whilst allowing the user to
boost to maximum performance when
required.

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The MBOX125/2DC is generally
installed in the loft or roof void and
requires only one discharge grille. The
noise level and running costs are
extremely low and it is compliant with
Parts L and F of the Building
Regulations

* Also available with 204mm x 60mm spigot - MBOX125/2DC204

Page 20

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Email: [email protected]

Web: www.vectaire.co.uk

Slimline, whole house, mechanical extract ventilation - MEV

Microbox 125/2DC

Technical Characteristics

FEATURES

• SAP Q eligible (MEV) whole house

mechanical extract ventilation for
homes or offices

• continuous ventilation in kitchen

and up to 4 additional wet rooms

• maximum airflow 112 l/sec

• suitable for areas up to 270m

• easy to install, commission and

maintain

• for fitting into lofts, voids, false

ceilings or cupboards (can be
angled horizontally or vertically)

• a variable choice of both low

(trickle) speed and boost options
for optimum setting at installation

• the boost speed can be triggered

by a switched live connection from
a range of devices:

- PIRFF (passive infra red)*

- DRH240 (dynamic remote

humidistat)*

- THM (thermostat)*

- a light switch (if more than

one light switch is used, each

one must be a double pole
switch)

- a remote switch/pull cord

(*PIRFF, DRH240 and THM may
have integral over-run timer
which controls the length of time
that the fan will continue to
operate at its boost speed after the
boost has been switched off.)

• very low noise levels

• low running costs

• gives extra security by removing

need to open windows

• 3 year warranty

• Vectaire Ltd can supply all

accessories for use with these
units, including air filter cassettes,
silencers, fire dampers, air valves,
ducting, outside grilles and wall
cowls

2

SPECIFICATION

• compact, ultra low profile unit

• casing manufactured from steel

lined with acoustic material

• low energy DC external rotor motor

has sealed for life bearings

• backward curved blades dynamic-

ally balanced

• thermal overload protection

• service and maintenance panel

easily accessible

• pre-wired for easy electrical

connection

• complete with mounting bracket

and anti-vibration plate

• IPX4 rated

INSTALLATION EXAMPLE

Vectaire Ltd offers a design service
to ensure that the unit installed is
the best possible to provide efficient,
effective, low energy and low running
cost ventilation. Vectaire can also
organise installation and
commissioning of these products

DUCT RUNS

Vectaire

Competitor

COMPLIES WITH

• Part L1A and L1B of Building

Regulations for enhanced energy
saving capability

• Part F of Building Regulations for

reliable, efficient ventilation

• complies with IEC 60335-2-80,

LVD2006/95/CE and EMC
2004/108/CE European
Directive against radio interfer
ence and electro-magnetic
compatibility

• CE marked

• SAP Q eligible

• Energy Saving Trust Best
Practice Compliant

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Fax: [phone]

Page 21

Email: [email protected]

Web: www.vectaire.co.uk

Slimline, whole house, mechanical extract ventilation - MEV

Microbox 125/2DC

Technical Characteristics - SAP Results

RESULTS for SAP CALCULATIONS

ENERGY LEVEL PERFORMANCE - using rigid ducting only

Exhaust Terminal Configuration Fan Speed Setting

Kitchen + 1 additional wet room 25%

Kitchen + 2 additional wet rooms 25%

Kitchen + 3 additional wet rooms 50%

Kitchen + 4 additional wet rooms 50%

Figures from BRE test results at minimum flow rate conditions

RESULTS for Approved Document F

Exhaust Terminal Configura­tion

Kitchen + 1 additional wet
room

Fan Speed Setting

25% 21.0 19.3 8

Total

Flow Rate

(l/sec)

Specific Fan Power

(W/l/s)

0.38 Yes

0.41 Yes

0.49 Yes

0.65 No

Total Flow Rate

(wind condition)

(l/sec)

EST Best Practice

Performance Compliant

% reduction of

Total Flow Rate

Kitchen + 2 additional wet
rooms

Kitchen + 3 additional wet
rooms

Kitchen + 4 additional wet
rooms

Figures from BRE test results

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25% 29.0 26.8 8

50% 37.1 35.3 5

50% 45.0 44.3 2

Page 22

Email: [email protected]

Web: www.vectaire.co.uk

Slimline, whole house, mechanical extract ventilation - MEV

Microbox 125/2DC

Technical Characteristics - Performance & Dimensions

curves are for guidance only

600

500

400

300

Speed Volts

230V.AC (10V DC) 579 112.2 59

8V DC 404 98.3 47

6V DC 222 68.9 25.8

4V DC 95 43.9 10.2

2V DC 24 23.1 4.2

PressurePaAirflow

l/sec

Watts

Pressure Pa

200

100

0

0 25 50 75 100

llitres/second

Dimensions (mm)

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Page 23

Email: [email protected]

Web: www.vectaire.co.uk

"Microbox"
DC Models
MBOX 125/2DC
MBOX 125/2DC204

Continuous Mechanical Extract Ventilation

Unit with Low Energy DC Motor - for
domestic and commercial use

Installation, Operating and Maintenance

Instructions

Page 2

"MICROBOX" - CONTINUOUS MECHANICAL EXTRACT UNIT
INSTALLATION AND OPERATING INSTRUCTIONS

PLEASE READ THE FOLLOWING INSTRUCTIONS VERY CAREFULLY BEFORE USING THE PRODUCT. THE
MANUFACTURER WILL NOT BE HELD RESPONSIBLE AND DECLINES ANY AND ALL LIABILITY FOR DAMAGE
CAUSED TO PERSONS OR PROPERTY DUE TO IMPROPER USE WITH REFERENCE TO THE PRECAUTIONS
OUTLINED IN THIS MANUAL.

THIS MANUAL MUST ALWAYS BE READILY AVAILABLE.

MBOX125/2DC: 5"/125mm spigot, for dwellings up to 270m2, max capacity 404m3/hr

MBOX125/2DC204: 204 x 60mm spigot, for dwellings up to 270m

2

, max capacity 404m3/hr

ATTENTION : This symbol indicates that care must be taken in installing this product in order to
avoid (potentially lethal) injury both to installer and user. This instruction MUST be followed for
installation.

1. Do not use this product for any purpose other than that for which it was designed and as shown in this leaflet.

2. Remove all packaging and check that your fan has not been damaged in transit. If in doubt, contact your
supplier.

3. Do not leave packaging within the reach of children or unskilled people. Dispose of hazardous waste (poly
styrene, plastic, polypropylene, etc.) responsibly.

4. If the product is dropped or badly knocked, contact your supplier, dealer or manufacturer to ensure that it is
operating properly.

5. Using any electrical equipment requires compliance with basic safety rules:

- the product must not come into contact with liquid of any sort and should not be touched with wet or

damp parts of athe body (eg hands, feet)

- the product must not be operated by children or other unskilled people.

6. The product should only be connected to the mains electricity supply or electrical outlet if:

- your electrical voltage and frequency correspond to those shown on the rating label.

- the capacity of your electricity supply is sufficiently powerful to operate the product at its maximum power
If this is not the case, contact professionally qualified personnel.

7. Before carrying out any maintenance or cleaning operation, the product must be switched off and disconnect
ed from the main power supply..

8. If a fault, malfunction or anomaly of any type occurs, the product should be made inoperative (by turning off
the switch and by disconnecting it from the mains electricity supply) and qualified personnel contacted imme
diately. Always request original spare parts to carry out any repairs.

9. If the product needs to be removed, turn off the main network circuit-breaker and then disconnect the appli
ance from that network.

10. The unit should be installed in a safe location as far away as possible from children and/or unskilled people.

11. The electricity system to which the product is connected must comply with the current standards.

12. In order to comply with Construction (Design & Management) Regulations, sufficient access for safe
maintenance or removal following installation, MUST be provided for this product.

WARNING : This symbol indicates that care must be taken to avoid damaging your product
when following these instructions

1. This product is professionally manufactured and complies with the current standards regarding electrical
equipment

2. This product conforms with the EEC directive EMC 89/336 concerning the suppression of radio interference
and electromagnetic compatibility.

3. This product must not be used in an ambient temperature greater than 40 °C (104 °F).

4. Do not leave the product exposed to the weather (rain, sun, snow, etc.).

5. Do not place the unit or any part of it in water or liquids.

6. When cleaning or performing routine maintenance, check the condition of the appliance.

7. To avoid the risk of fire, do not use the product in the presence of inflammable substances or vapours such
as alcohol, insecticides, gasoline, etc.

8. The air or fumes being extracted must be clean and free from greasy particles, soot, chemicals and
corrosive agents, inflammable or explosive mixes (if these substances are present, conctact Vectaire for
information on more suitable products).

9. The unit must be installed by professionally qualified personnel.

10. The product must be connected to the electricity supply by means of a triple-pole isolating switch with a mini­mum contact opening distance greater than 3 mm.

11. To ensure optimum operation, do not block the air intake and exit vents.

12. The area where the device is located must be adequately ventilated to ensure correct operation

(UNI CIG 7129).

13. If the fan is extracting from a room containing a fuel burning appliance, the installer must ensure that air
replacement is adequate both for the fan and the fuel burning appliance.

14. Any ducting used must be free from blockages

15. Your fan must not be exhausted into a duct which is already used for any other purpose (see Approved
Document F1 2006 for guidance)

OPERATION

1. The Microbox is suitable for ceiling or wall installation.

2. If one of the spigots is not connected to ducting a safety grille MUST be fitted to that spigot, so that it is
impossible for any moving part to be touched.

3. This fan runs continuously at a preset trickle speed and has an independently switched boost
speed. The trickle & boost speeds are selectable during the installation by adjusting the trimmers in
the controller (see wiring diagrams).

Electrical Connection
WARNING: these appliances must be earthed and all wiring must conform to current IEE Regulations and
all applicable standards and Building Regulations.

• The unit is supplied with a mains rated 4 core flexible cord (black, brown, grey and green/yellow)

• The unit is suitable for 230V, 50Hz Single phase supply fused at 3A.

• A fused spur box, or triple pole switch having a minimum contact separation of 3mm must be used for

isolation.

Note : if the unit is connected to the lighting circuit, which is fed via a 6 amp MCB, then no local fusing is

necessary. A local isolating switch must still be used.

• Boost controls must not be located within 1 metre of a cooker or where they may be affected by excessive heat

or moisture

• Boost controls should be clearly identified and conveniently located.

• The boost speed can be triggered by a switched live connection from a variety of external devices including:

- PIRFF (passive infra red)*

- DRH240 (dynamic remote humidistat)*

- THM (thermostat)*

- a light switch (if more than one light switch is used, each one must be a double pole switch)

- a remote switch/pull cord
(*PIRFF, DRH240 and THM may have an integral over-run timer which controls the length of time that the fan will

continue to operate at its boost speed after the boost has been switched off)

CLEANING AND MAINTENANCE

1. Before carrying out any maintenance or cleaning operations the unit MUST be isolated from the
electrical supply.

2. CLEANING AND MAINTENANCE SHOULD BE CARRIED OUT BY A QUALIFIED PERSON.

3. Before attempting to remove the motor impeller assembly disconnect the cable inside the control box.

4. Remove the screws (Fig.8) and lift out the motor/fan assembly.

5. Clean the motor/fan assembly either with a dry brush or a dry cloth.

6. Electrical parts cannot be cleaned.

7. Reassemble in the reverse order to above.

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DIMENSIONS - MBOX125/2DC

INSTALLATION

DIMENSIONS - MBOX125/2DC204

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1

7

6

5

43

2

8

Page 6

WIRING and COMMISSIONING DIAGRAMS

Vectaire Ltd, Lincoln Road, Cressex Business Park, High Wycombe, Buckinghamshire, HP12 3RH

Tel: [phone]. Fax: [phone]. Email: [email protected]

MBOX125/2DC/MBOX125/2DC204 Nov11