background image

 

13 

 

Version 10.08.2011 

 
 

 

MAINTENANCE 

 
 

Maintenance UK 

 
It is a legal requirement, under regulation 9 of the COSHH regulations, that all local 
exhaust ventilation systems are visually inspected on a weekly basis, where possible 
and undergo a thorough inspection and test on an annual basis. COSHH requires the 
annual inspection and testing to be carried out by a competent person with specific 
documentation of the results held in a log book. Bofa can provide this service, our 
inspectors are BOHS P601 qualified, and copies of the required initial information 
and forms are included in the Log book supplied with the extractor. 
Additionally the log book contains a form detailing the weekly inspection 
requirements and log for recording the results. 
 

Maintenance General  

 
User maintenance is limited to cleaning the unit and replacing the filters with new. 
Only BOFA International 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 Unit 

 

The powder coated finish can be cleaned with a damp cloth and non aggressive 
detergent. Do not use an abrasive cleaning product as this will damage the finish. 
Stainless steel units should be cleaned with a proprietary stainless steel cleaner, 
following the manufacturer’s instructions. 

 

The cooling inlets and outlets should be cleaned once a year to prevent build up of 
dust and overheating of unit.

 

 

Replacing Filters  
 

The filter package needs attention when the filter change signal is alarmed and/or the 
green amber and red LED’s on the unit are illuminated or, for units with no filter 
condition indication, when the unit no longer removes the fume efficiently. 
 
A log of filter changes should be maintained by the user. 
 
All filters are tested to BS3928. A certificate on conformity for each filter is available 
on request. 
 
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 consumable spares table. 
 

Caution 

To prevent overheating, units should not be run with a blocked filter condition, or with 
dust obstruction of inlets or outlets.  

 
Caution:   When changing used filters always wear respirator mask, safety 
glasses and gloves. 

 

 
 

Содержание AD 350

Страница 1: ...1 Version 10 08 2011 AD 350 FUME EXTRACTION UNIT OPERATIONAL INSTRUCTIONS ...

Страница 2: ...siderations 9 Filter blocked System failure signal 9 Remote stop start 9 Remote Stop Start Over Ride 9 Electrical supply connection 10 General Safety Requirements 10 OPERATION 11 Manual operation 11 Gas Filter Change LED VOC monitoring 12 Optional features 12 Digital flow control 12 MAINTENANCE 13 Maintenance UK 13 Maintenance General 13 Cleaning Unit 13 Replacing Filters 13 Filter replacement ind...

Страница 3: ... 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 panel 2 Use only as described in the manual 3 Connect to a properly grounded outlet Dangers to eyes breathing and skin Once used the filters in the AD range of extraction units contain a mix...

Страница 4: ... 10 08 2011 Warning and Information Labels Label Symbol Position Side of the unit next to the Protex clip Rear of Base of unit above inlet port Pump motor access panel exhaust box Next to power inlet connection ...

Страница 5: ... returning the associated clean air back into the workplace Please note the media in the gas filter fitted in this unit is capable of adsorbing a wide range of organic compounds However it is the responsibility of the user to ensure it is suitable for the particular application it is being used on Fume Capture Methods The fume is normally captured by one of three methods a flexible arm and nozzle ...

Страница 6: ... Fig 2 Fig 3 Enclosures Extraction can be attached to an enclosure around the marking zone provided the extraction point is situated within 50 75mm of the marking point See fig 3 Cabinets See fig 4 Cabinets normally have a 75 or 100mm spigot for fume extraction For best performance use the same diameter hose as the spigot and reduce at extractor if necessary Keep the hose run as short as possible ...

Страница 7: ...nits are of robust design and feature ease of use with minimal maintenance The main components of the AD 350 are shown in fig 5 below Items may vary slightly Fig 5 1 Unit Filter Condition Display 2 On Off Switch 3 Airflow Control Panel 4 IEC Power Inlet 5 Hose Inlet Connection 6 Cooling Air In 7 Exhausted Air Out 8 Signal Interface Cable to Laser 1 2 3 4 5 6 7 8 ...

Страница 8: ...fting equipment and with regard to appropriate safety precautions See Appendix for product weight details 2 Ensure that a 0 5m space is available around any louvered areas of the unit to ensure adequate air flow Lock the two castors if fitted Caution Do not block or cover any louvers or cooling holes on the unit as this severely restricts air flow and may cause damage to the unit Caution Under no ...

Страница 9: ... cabinet next to the power cable The signal is a volt free contact i e a closed circuit will exist between the green and white wires when the filter condition is good and the unit is running This will change to an open circuit on filter blockage or system failure This feature should only be used on control voltage circuits The signal can be connected to the laser or alternatively to operate a beac...

Страница 10: ...re fitted before operating this equipment General Safety Requirements The mains socket outlet should be installed near the equipment and be easily accessible Caution Do not block or cover the base or cooling vents on the unit as this severely restricts air flow and may cause damage to the unit this may be located on the base of the unit Caution This unit is over 18Kgs in weight and should only be ...

Страница 11: ...dition and System failure signal indicators The LED s on the front panel see table below indicate the following conditions LED S SHOWING INDICATES Green Only Unit is running Filters are usable Green Amber Pre or Combined Filter 75 blocked Green Amber Red Pre or Combined Filter Blocked and in need of replacing Green Amber Red flashing Fault with extractor This condition may occur for a few seconds ...

Страница 12: ... LED on the front panel will illuminate This indicates that the gas portion of the combined filter is saturated and the filter needs replacing See fig 11 The Maintenance section describes the filter change procedure Fig 11 Gas filter full indication VOC Monitor optional filter Optional features Digital flow control With this fitted the airflow can be increased or decreased by pressing the or butto...

Страница 13: ...date the manufacturer s warranty Cleaning Unit The powder coated finish can be cleaned with a damp cloth and non aggressive detergent Do not use an abrasive cleaning product as this will damage the finish Stainless steel units should be cleaned with a proprietary stainless steel cleaner following the manufacturer s instructions The cooling inlets and outlets should be cleaned once a year to preven...

Страница 14: ...ont panel Please note that the carbon media within the combined filter is hygroscopic and will absorb moisture from the atmosphere This is why these filters should be changed every twelve months regardless Pre filter replacement 1 Isolate the electrical supply to the unit 2 Undo the latches on either side of the unit and lift the motor section off 3 Remove the filters from the base 4 Vacuum out an...

Страница 15: ...s filter should be changed every twelve months regardless Combined filter replacement 1 Isolate the electrical supply to the unit 2 Undo the latches on either side of the unit and lift the motor section off 3 Remove the filters from the base 4 Vacuum out any dust in the base 5 Remove the pre filter from inside the combined filter and if still serviceable fit into a new combined filter 6 Locate the...

Страница 16: ... recommended Disposal of the used filters depends on the material deposited on them See the following table Deposit EWC listing Comment Non Hazardous 15 02 03 Can be disposed of as non hazardous waste Hazardous 15 02 02 M 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 i...

Страница 17: ...onal LTD 21 22 Balena Close Creekmoor Industrial Estate Poole Dorset BH17 7DX UK Tel 44 0 1202 699444 Fax 44 0 1202 699446 Email technical bofa co uk Website www bofa co uk OR Bofa Americas Inc Bofa Americas Inc 303 S Madison Street Staunton Illinois 62088 USA Tel 618 635 4465 Fax 866 707 2632 BOFA Email info bofaamericas com Website www bofaamericas com ...

Страница 18: ...r Centrifugal Fan Output 1 1kw Electrical supply 115 230v 1ph 50Hz FLC 12 5A Noise level below 63dB A At Typical Operating Speed Filters Pre filter Surface area 4 2m Efficiency F8 95 0 8µ Hepa filter Efficiency H13 99 997 0 3µ Gas filter Activated Carbon 8 5Kg Environmental Operating Range Temperature 5 C to 40 C Humidity Max 80 RH up to 31 C To Max 50 RH at 40 C Altitude Below 2000m Pollution Deg...

Отзывы: