Bofa DWX-52DCi User manual

USER MANUAL
DWX-52DCi
V3 Dec 18

Contents
01
02
Overview of your DWX-52DCi system (front)
Overview of your DWX-52DCi system (back)
1
01
Unpacking and unit placement
3
01
02
Fume capture Guidelines
Connecting to power supply
03
Optional added features
4
01
Turning extractor On / setting the airflow
5
01
02
Important safety notes
Safety labels
2
01
02
Cleaning the unit / Pre filter replacement
HEPA filter replacement
6
01
Fault indication / Error codes
8
01
DWX-52DCi Specifications
9
01
Fault Indication
7

Overview
01
1
On / Off switch
Speed control &
filter blocked light
Override Switch
Door Latch
Castors
Door Hinge
Storage
compartment
Pre filter bag
HEPA filter

Overview
02
1
Compressed air
outlet
Exhaust box outlet
Castors
Air inlet
Mains Power
inlet
Interface
connection

Safety Instructions
Important safety notes
Concerning symbols used on the extraction unit and referred
to within this manual.
Danger
Refers to an immediately impending danger. If the danger is
not avoided, it could result in death or severe (crippling)
injury. Please consult the manual when this symbol is
displayed.
Warning
Refers to a possibly dangerous situation. If not avoided it
could result in death or severe injury. Please consult the
manual when this symbol is displayed.
Caution
Refers to a possibly harmful situation. If not avoided,
damage could be caused to the product or something in its
environment.
Important (Refer to manual)
Refers to handling tip and other particularly useful
information. This does not signify a dangerous or harmful
situation. Refer to manual when this symbol is displayed.
Electrical Safety
The unit has been designed to meet the essential Health
and Safety requirements of the Machinery Directive
2006/42/EC. This is achieved by ensuring conformity with
the requirements of the Low Voltage Directive 2014/35/EC.
The requirements of the EMC Directive 2014/30/EU are also
met.
Warning
When working with the pump/motor housing open, Live
230/115 volt mains components are accessible. Ensure that
the rules and regulations for work on live components are
always observed.
Important
To reduce the risk of fire, electric shock or injury:
1. Always isolate the system from the mains power
supply before removing the pump/motor access
panel.
2. Use only as described in this manual.
3. Connect the system to a properly grounded outlet.
Dangers to eyes, breathing and skin
Once used, the filters within the system may contain a
mixture of particulates, some of which may be sub-micron
size. When the used filters are moved it may agitate some of
this particulate, which could get into the breathing zone and
eyes of the operative. Additionally, depending on the
materials being used, the particulate may be an irritant to
the skin.
This unit should not be used on processes with sparks of
flammable materials or with explosive dusts and gases,
without implementation of additional precautions.
Caution: When changing used filters always wear a mask,
safety shoes, goggles and gloves.
BOFA Technical Service
If a problem arises with your system. Please refer to the
troubleshooting guide section 7of this manual. If the
problem is still not resolved, please:
•Visit our website at
www.bofainternational.co.uk for on-line help.
•Or contact the helpline on [phone]
444, Mon-Fri, 9am-5pm.
Email: [email protected].uk
Serial Number
For future reference, fill in your system details in the space
provided. The serial number is on the rating label located on
the rear of the unit.
Serial Number:
01
2

Safety Instructions
Warning and Information labels
The following listing details labels used on your unit.
Goggles, Gloves & Mask Label
Meaning: Goggles, Gloves and Masks should be worn while
handling used filters.
Do Not Cover Label
Meaning: Do not cover any louvers or holes adjacent to the
label.
Electrical Danger
Meaning: Removal of panels with this label attached will
allow access to potentially live components.
Warning Label
Meaning: Power should be isolated before the panel with
this label attached is opened/ removed.
Compressor Warning Label
Meaning: Ensure compressor is set to the correct voltage
before the mains voltage is applied.
Serial Number Label
*example of label
Meaning: This label contains a variety of information about
the extraction unit, including.
•Company name, Address & Phone number
•Extractor model
•Unit serial number
•Operating voltage range
•Maximum current load
•Operating frequency
•Relevant approval markings/ logos
PLEASE NOTE: If the equipment is used in a manner not
specified by the manufacturer, the protection provided by
the equipment maybe compromised.
Fire Risk Warning
In the very rare event that a burning ember or spark is drawn
into the fume extraction unit, it may be possible that the
filters will ignite.
Whilst any resultant fire would typically be retained within
the fume extraction unit, the damage to the extractor would
be significant.
It is therefore essential to minimise this risk by undertaking
an appropriate assessment to determine:-
a). Whether additional fire protection equipment should be
installed.
b). Appropriate maintenance procedures to prevent the risk.
02
2

Before Installation
Packaging removal & unit placement
Before installation, check the extraction unit for damage.
All packaging must be removed before the unit is connected
to the power supply.
Please read all instructions in this manual before using
this extractor.
1. Move the unit to the location where it is going to be
installed and remove the outer packaging. This unit
should be installed in a well-ventilated area.
Caution
Due to the weight of the extractor suitable lifting equipment
should be used and with regard to appropriate safety
precautions. (See Appendix for product weight details)
Caution
Do not block or cover the cooling vents on the unit, as this
severely restricts airflow and may cause damage to the unit.
Caution
Under no circumstances should the exhaust outlet/s be
covered as this will restrict the airflow and cause
overheating.
2. Check the filter is located in the correct position
before closing the door and securing the door latches.
Ensure that 500 mm space is available around any vented
panels on the extractor to ensure adequate airflow.
3. With the unit in position unscrew the Red screw to lower
the castor foot, so the unit castor wheel rises off the floor.
Unlocked
Position
Locked
Position
01
3

Installation
During the machining processes which remove material,
dust is usually generated as a by-product. This dust needs to
be removed in order to prevent interference with the
performance of the machine and also to protect the health
of the operator. The Dental Pro range of units has been
developed to provide effective removal of swarf and smaller
particulates created during processes such as routing,
mechanical engraving, grinding and lathing. Dental Pro
units are compact and portable. They are of robust design,
and feature ease of use with minimal maintenance and long
life.
Exposure to airborne contaminants at work, such as
inhalable and respirable dust particles, can put people’s
health at risk. Health and safety regulations require
employers to control exposure to hazardous substances in
order to prevent ill health. The use of a suitable extraction
system will enable you to conform to the Health and Safety
regulations and protect the health employees and others.
This unit has been designed to remove and filter fume
containing potentially hazardous particulate generated
during manufacturing processes. Such hazardous
substances are captured within the filtration system after
which the cleaned air is returned to the workplace.
General Guidelines for a successful installation
•Keep duct run length to a minimum
•Avoid sharp bends / turns in the ductwork
•Avoid multiple bends / turns in the ductwork
•Use a larger diameter duct where able
•Position the capture device as close as possible to
the marking point
Cabinets
Cabinets normally have a 75mm 0r 100mm spigot for fume
extraction. For best performance use the same diameter
hose as the spigot and reduce at the extractor end if
necessary. Keep the hose run as short as possible.
01
4

Installation
Connection to Power Supply
Please follow the specification at the end of this manual
when selecting the power supply outlet for the unit, ensure
the power supply is suitable before connecting the unit.
Please do not use the lead with other devices
Check the Integrity of the electrical power cable, if the
supply cord is damaged the extraction unit should not be
connected to the mains. The supply cord should only be
replaced by a BOFA engineer as an electrical safety test may
be required after replacement.
The unit MUST be connected to a properly earthed outlet.
If your unit was ordered with any optional extras please
read section 4.03 before the power connection is made as
additional connections may be required before power is
connected to the extractor.
The internal compressor is a voltage specific component
that MUST be set correctly before any mains voltage is
applied to the extractor.
The voltage selector switch can be found on the
mounting base of the compressor inside the unit. Please
ensure the switch is set correctly, Failure to do this will
cause irreversible damage to the compressor
Connect the power cable to an isolated electrical supply.
The mains socket should be installed near the extractor it
should be easily accessible and able to be switched On/ Off.
The cable run should be arranged so as not to create a trip
hazard.
230V
115V
02
4

Installation
Optional added features
The Base DWX can be configured to suit customer
specification. These optional extras would be discussed,
arranged and installed prior to delivery.
(If unsure what features your Base DWX is equipped with
please contact the seller with the unit serial number,
(Refer to section 2for location) who will be able to advise
what specification has been supplied.
Remote Stop/Start feature
Enables the extraction unit to be remotely turned On / Off
via an external signal.
This feature can be configured in 2 ways
•DC Voltage input –Range 24VDC
•Override –Stop / Start feature switched off
Note: Care must be taken to ensure that the system is
correctly wired in order for the extraction unit to function
correctly.
DC Voltage input
This configuration requires pins 1( +) & 6 (-) of the 9way
connector (Refer to section 1 for location) to be connected
to a known and tested DC power supply, in order to start the
extractor.
The operating voltage for this signal is 24VDC. Voltages
connected outside of this may cause irreversible damage to
the internal relay.
Pin 1 = V+
Pin 6= V-
When the extractor is provided with the correct DC voltage
the motor will start and maintain the set flow rate (Refer to
section 5for how to set the flow) when the DC voltage is
removed the motor will slow down and come to a stop.
The extractor will need to be turned on (See section 5 for
turning the extractor on) in order for this feature to operate.
Override
Enables the extractor to operate fully with or without either
DC voltage input or the Volt free input.
The override feature can be toggled On / Off by a switch
mounted on the front panel (see section 1 for switch
location)
Switch in “On” position
In this position the extractor will require a start signal (either
Voltage input or Volt free, depending on the requested
specification) to enable the motor within the extraction unit.
Switch in “Off” position
In this position the extractor motor will run without the
requirement for an external start signal. This feature is
useful for engineers carrying out works/ tests on the
extractor without the need for the auxiliary signal being
present.
Compressor (Optional)
With this option an on board compressor will be fitted to the
extraction unit. The compressor is mounted internally with
the outlet mounted on the rear of the unit (see section 1 for
location)
The compressor can be configured to 115V or 230V by an
internal voltage selector switch. As standard the
compressors are configured to 230V. (Isolate the mains
supply before moving the rear panel of the extractor)
The compressed air outlet hose should have a water trap
fitted, this must always be fitted at the milling machine
end.
03
4

Operation
Turning extraction unit On
The unit is turned on and off by the main switch on the
front of the unit. To turn “On” the (I) side of the green
switch should be depressed (Refer to section 1 for switch
location)
Motor Speed Adjustment
The motor speed can be adjusted by the buttons on the
front of the extraction unit.
Pressing the Up arrow will increase the motor speed
Pressing the Down arrow will decrease the motor speed.
The 6 blue LED’s on the front of the unit will display the
motor speed, there are several increments between each
LED so the button may need to be pressed several times to
illuminate the next LED.
02
5

Maintenance
Maintenance UK
It is a legal requirement, under regulation 9 of the COSHH
regulations that all local exhaust ventilation systems are
thoroughly examined and tested at least once every 14
months (typically carried out annually). The approved code
of practice recommends that a visual check should be
carried out at least once a week.
COSHH requires the annual inspection and testing to be
carried out by a competent person and specifies that
documentation results are recorded in a log.
Contact the seller for more information about inspection
and certification.
Maintenance General
User maintenance is limited to cleaning the unit and filter
replacement, only the manufacturers trained maintenance
technicians are authorised to carry out component testing
and replacement. Unauthorised work or the use of
unauthorised replacement filters may result in a potentially
dangerous situation and/or damage to the extractor unit
and will invalidate the manufacturer’s warranty.
Cleaning the unit
The powder coat finished units can be cleaned with a damp
cloth and non-aggressive detergent, do not use an abrasive
cleaning product as this will damage the finish.
The cooling inlets and outlets should be cleaned once a year
to prevent build-up of dust and overheating of the unit.
Replacing the Filters
The filters will need changing when the Green LED on the
front of the unit starts to flash Red.
At this point the Pre filter bag should be changed, if the
Green LED has not returned then the HEPA filter should also
be changed.
A log of the changes should be maintained by the user.
The filters require attention when the LED flashes RED or
when the extractor no longer removes fume efficiently.
It is recommended that a spare set of filters are kept on site
to avoid prolonged unit unavailability. Part numbers for
replacement filters can be found on the filters fitted in your
system. Alternatively, refer to the spare parts table in this
manual.
To prevent overheating, units should not be run with a
blocked filter condition, or with dust obstruction of Inlets /
Outlets.
Pre Filter Replacement
To replace the Pre filter follow the procedure detailed
below.
Always use Goggles Gloves and Masks when changing the
filters.
1. Isolate the electrical supply to the extractor
2. Undo the 2 latches on the front of the extractor to
open the front door.
3. Pull the filter tray out of the unit and remove the
bag filter.
4. Once removed it is recommended that the filters
are bagged and sealed
5. Slide the new filter into place on the tray and install
the tray
6. Close the door and secure the 2 latches
7. Reconnect the mains supply to the unit.
01
6

Maintenance
HEPA Filter Replacement
To replace the HEPA filter please follow the procedure
below.
1. Isolate the electrical supply to the extractor
2. Undo the 2 latches on the front of the extractor to
open the front door.
3. Undo the 2 screws that hold the filter cage in place.
4. Remove the filter from its holder.
5. Once removed it is recommended that the filters
are bagged and sealed
6. Install the new filter and fit the filter cage.
7. Close the door and secure the 2 latches
8. Reconnect the mains supply to the unit.
02
6

Troubleshooting
In the unlikely event of a problem with your unit please
contact your local representative.
BOFA Headquarters
19-20 Balena Close
Creekmoor industrial Estate
Poole
Dorset
BH17 7DU
UK
Phone: [phone]
Email: [email protected].uk
Website: www.Bofa.co.uk
OR
BOFA Americas
303 S.Madison Street
Staunton
Illnois
62088
USA
Phone: [phone]
Email: [e-mail]
Website: www.bofaamericas.com
OR
BOFA International Germany
Sudring 62
D-21465
Wentorf bei Hamburg
Germany
Phone: [phone]
01
7

Replacement Parts
Consumable Spares
The system contains a pre filter and a HEPA filter. These
should be replaced when the RED LED is flashing (see
section 6for replacing the filters)
To maintain performance it is important that the filters are
replaced with identical BOFA filters. To re-order please refer
to stickers on filters in your unit.
Maintenance Protocol
Filter change information may also be recorded in the table
below.
Unit Serial Number:
Pre filter
HEPA filter
Date
Engineer
Date
Engineer
Filter disposal
The filters are manufactured from non-toxic materials.
Filters are not re-usable, cleaning used filters is not
recommended. The method of disposal of the used filters
depends on the material deposited on them.
For your guidance
Deposit
EWC
Listing*
Comment
Non
Hazardous
15 02 03
Can be disposed of as non-
hazardous waste.
Hazardous
15 02 02M
The type of hazard needs to
be identified and the
associated risks defined.
The thresholds for these
risks can then be compared
with the amount of material
in the filters to see if they
fall into the hazardous
category, if so, the filters
will need to be disposed of
in line with the
local/national regulations.
*European Waste Catalogue
01
7

System Specifications
Unit: DWX-52DCi
Capacity: 320m3/h (188cfm)
Weight: 92Kg (202lbs)
Motor: Centrifugal Fan
Output: 1100w
Electrical supply: 115-230V (when no compressor fitted)
Hertz: 50/60Hz
Full Load Current: 12.5A
Noise Level: Below 74dB (A)
(at maximum speed)
Size:
Metric
(mm)
Imperial
(inches)
Height
757
29.80
Depth
676
26.61
Width
880
34.64
Filters:
Filter
Type
Efficiency
Pre filter
95% @
0.9micron
HEPA
99.997% @
0.3micron
Environmental operating range:
Temperature: +5oC to + 40oC
Humidity: Max 80% RH up to 31oC
Max 50% RH at 40oC
01
9

Contact Information
BOFA Headquarters
19-20 Balena Close
Creekmoor industrial Estate
Poole
Dorset
BH17 7DU
UK
Phone: [phone]
BOFA Americas
303 S.Madison Street
Staunton
Illnois
62088
USA
Phone: [phone]
BOFA International Germany
Sudring 62
D-21465
Wentorf bei Hamburg
Germany
Phone: [phone]