FILTREX

AC-1500 User Manual Ver AC-3.02

User Manual

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File Name: FILTREX - AC-1500 User Manual Ver AC-3.02.pdf

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CLEANROOM & BIOSAFETY SYSTEMS

USER MANUAL

HYGENIC / HEPA FILTERED PORTABLE AIR CLEANER

MODEL AC-1500

ABOUT THIS MANUAL This manual helps you to learn how to install, operate, and maintain your Filtrex instrument/unit. Instructions for installing optional equipment on your instrument/unit are also included. Please review this manual carefully before you start to use a biological safety cabinet. You need to obtain descriptions for safe and proper functions and efficient working conditions of the instrument. Please acquaint yourself with this manual and keep it handy for future reference. The information contained in this manual and the accompanying products are copyrighted, and all rights reserved by Filtrex. Filtrex. also reserves the right to make periodic design changes without obligation to notify any person or entity of such change.

LIABILITY The disposal and/or emission of substances used in connection with this equipment may be governed by various national or local regulations. All users of this equipment are required to become familiar with any regulations that apply in the user’s area concerning the dumping of waste materials in or upon water, land, or air and to comply with such regulations. Filtrex Global Ltd. is held harmless concerning the user’s compliance with such regulations.

USER MANUAL INDEX AC-1500 PORTABLE HEPA FILTERED AIR CLEANER PART

CHAPTER

TABLE OF CONTENTS

PAGE

1.1 1.2 1.3

General Information Introduction Design and Operation Principles Certiicates & Compliance

4 5 6

2.1 2.2 2.3

Technical Specifications Technical Diagram Technical Table Accessories

6 7 8

3.1 3.2 3.3

Installation Pre-Installation Requirements Delivery Check and Unpacking Installation

4.1 4.2 4.3

Precautions & User Responsibilities Limitation of Liability Precautions for Safety Precautions for Proper Operation

Performance Qualification

5 6

6.1 6.2 6.3 6.4

Operation Control Panel Symbols Operation Error Messages Usage of Accessories

7.1 7.2

Maintenance Periodic Maintenance Replacement of parts

Troubleshooting

Warranty

Spare parts

Electrical Wiring Diagram

References

1 GENERAL INFORMATION 1.1 INTRODUCTION Filtrex portable HEPA filtered air purifier / air cleaner has been engineered and crafted to provide safe and high-quality indoor air. Filtrex air cleaners include true HEPA filters and 3 or 4 stages filtering which provide one of the most effective mechanical filtration methods available. The prefiltered air passing through the main HEPA filter and internal design ensures zero-leakage negative pressure barrier of the device and prevents escape of unfiltered air to the room. Filtrex air cleaner models continuously clean the indoor air and helps reduce airborne bacteria, germs and mold spores by drawing air through the HEPA filter which traps and collects these particulates. Filter trapped airborne microorganisms are eliminated from the filter material by additional UV germicidal over the filter and results a microbiological reduction up to 100%. All Filtrex instruments and units work under High Performance – Optimal Air Volume and Air-Velocity methodology principles. The following advanced engineering methods ensure the protective containment properties of Filtrex devices. •

CFD MODELLING AND SOPHISTICATED ANALYSIS OF AIRFLOW DYNAMICS

•

CRUISE CONTROL AIRFLOW CORRELATED WITH THE AIR RATE

•

DEAD ZONE AND TURBULENCE FREE PERFORMANCE

•

INCREASED ERGONOMICS AND OPERATOR COMFORT

1.2 DESIGN & OPERATION PRINCIPLES The working principles of the Filtrex Air Cleaners are as follows: Filtrex AC-1500 Portable Hygienic Air Cleaner works under principles of air recirculation & air filtration airtight construction and design prevents the air leakage by keeping filtration chamber under negative air pressure. The room / ambient air is taken from the bottom of the device (inflow air). The air is firstly put through a two-stage pre-filtration. Then the air has a final purification from microparticles via a HEPA filter. This is then released to the environment through the air distribution diffuser. Inside the unit has an adjustable air mixture rate. Air cleaning performance covers minimum floor space by its compact design. Air speed can be controlled. Fresh and recycled air are mixed at preset rate. The intake of clean air by the unit before reaching the target area does not occur which prevents the air short circuit. Indoor airflow model is shown in the Figures below. The air exchange rates (ACH) are obtained in practice and High Supply-Low return method is recommended in ASHRAE and CDC standards. The number of particles in a given room will be removed 99% within first 15 minutes with an average ACH of 25 at the pressure of +10 Pa. As the clean air is released close to the ceiling area of the room, a positive pressure field is created on the top part of the room. By this air pressure effect the polluted room air is pushed towards the cleanroom to floor area. Short circuit in air movements (suction of the clean air by the device before the air is released into the environment) is prevented. This ensures an active particle removing speed.

GENERAL INFORMATION The device can be adjusted with connection options to create positive and negative pressure. In the positive pressure mode, the device can receive air from outside by using the duct connection that has been established. In the negative pressure mode, the device can exhaust a portion of the Hepa filtered air through the duct connection that has been established to the external environment. By pre-filtration, the contamination of the inner parts of the device is prevented and the lifespan of the HEPA filter is extended. The surfaces of the pre-filters are disinfected by UV lights to prevent the breeding of microorganisms.

AIRFLOW & AIR FILTRATION DIAGRAM OF FILTREX AC-1500 Positive Pressure Working Mode

Negative Pressure Working Mode

Portable HEPA filtered air cleaners are SUITABLE for applications such as: • • • • • • • • • •

Removal pf particles and microorganisms in neutropenic or immune suppressed patient rooms Containment of airborne contaminating pathogens inside at rooms Protection of close contact people and health workers from infectious patients Class I or low risk medical device manufacturing area Supply of fresh and HEPA filtered clean air for the offices IVF Clinics and laboratories Decrease of particle or microorganism spread indoor environment air contaminations where crowded Increase need of Air Change per Hour in cleanrooms Outpatient clinics, Intensive care units, Burn Units Isolation and Small intervention rooms at hospital

Portable HEPA filtered air cleaners are SUITABLE for applications such as: • • • • • •

Volatile inflammable / chemical or toxic materials Gaseous or volatile materials having medium-high level cytotoxicity Explosive environment since this device does not have fully Ex-Proof parts Operation theaters Class II or high-risk medical device manufacturing area Heavy Dirty Environments

GENERAL INFORMATION 1.3 CERTIFICATES AND COMPLIANCES Filtrex instruments and units work according to the primary international standards and definitions. Filtrex conforms the above requirements and passes all standard validation tests at user sites. Standards include the basic requirements for design, manufacturing and performance, such as cleanliness level, electrical safety conformity, noise, luminance, temperature, vibration, so as to provide proper protection for personnel, product and environment and ensure its reliability and durability. The performances of Filtrex Portable Air Cleaners are reported in compliance with one or more of the following requirements: Filtrex units are "CE" marked. Compliant with the requirements of •

EN 61010 Electrical safety

•

ISOSO14644 Cleanrooms and associated controlled environments

Filtrex Global Ltd. cannot be responsible for malfunctions, damage to people or property due to non-compliance, poor or no maintenance, or improper use of the instrument.

2 TECHNICAL SPECIFICATIONS 2.1 TECHNICAL DRAWING Filtrex AC-1500 portable hygienic air cleaner components and parts are shown below diagram.

Filtrex AC-1500 portable hygienic air cleaner dimensions are shown below diagram

Please note that fresh air / exhaust blower, fresh air / exhaust filter and ducts are not included in Filtrex AC-1500-unit purchase only. Those components are sold separately and optionally. In case of fresh air intake or outdoor exhaust needs, proper outdoor blower selection can be determined from total system static pressure loss measurements. Contact Filtrex service for assistance in proper blower system selection.

TECHNICAL SPECIFICATIONS 2.2 FILTREX AC-1500 PORTABLE HYGENIC AIR CLEANER TECHNICAL TABLE Dimensions (WxLxH) mm

717 x 513 x 2000

Air Flow Rate (m³/h)

1500 (Max)

Air Flow Pattern

Turbulence

Supply Air Velocity Range

0.3-1.5 m/s Pre Filtre-1

Pre Filtre-2

V Type High Capacity EU7 8.5 m²

Main Filter

Hepa, H14 %99.995, 0,3 µm 30.0 m²

EN ISO 14644-3

< ISO 5

US FED 209E

< Class 100

Noise Level (100 cm distance)

Normal Mode

< 50 dB (A)

Eco Mode

< 42 dB (A)

Energy Consumption VAC- 50Hz

Fan Filter Unit

200 W

UV Lamp

30 W

Filter Types (EN 1822)

Supply Air Class

230

Supply voltage and frequency

230 W / 1 A

Weight (kg)

90 kg

Packaged Total Weight (Excluding Fresh Air Fan)

120 kg

Pack/Palette Dimensions (WxLxH) mm

1000 x 635 x 2120

Main Body Construction Material

Antibacterial Epoxy Powder paint Coated Sheet Steel

Internal Construction Material

Antibacterial Epoxy Powder paint Coated Sheet Aluminum

Microprocessor Control System

Remote Controller

Programming on/off timer setting (days/weeks), Inflow and Air Velocity/ Flow Rate adjustment, Automated air flow rate and velocity compensation system, HEPA Filter Life (percent), Blower and UV lamp working Times, Audible and Visual Alarms for Air Flow/Rate, System ready information, Filter/Lamps replacement warning, Service need alarm On/Off button and timer setting, Air flow rate selection and setting

2.3 ACCESSORIES • • • •

Room Air Pressuring Kit Voltage regulator Uninterruptible Power Supply (UPS) Mechanical air velocity sensor

3 INSTALLATION 3.1 SITE REQUIREMENTS This chapter must be carefully read to learn basic requirements before installation. A.

Environmental conditions

Location and Space Requirements.

Fresh Air Requirements (optional - Positive Pressure Room)

Exhaust Requirements (optional - Negative Pressure Room)

Electrical requirements.

A. Environmental conditions •

Indoor use only.

•

Operation temperature range: 5°C to 40°C

•

Relative humidity ≤80% at 31°C (88°F), linear drop in relative humidity down to 50% at 40°C (104°F). The temperature should never fall below 0°C to prevent the humid in the filtering screen from freezing, which might damage the filters meshes.

•

Main supply voltage fluctuations not to exceed ±10% of the nominal voltage.

•

Transient over-voltages according to Installation Categories II (Over-voltage Categories per IEC 1010). Temporary voltage spikes on the AC input line that may be as high as 2500V is allowed.

•

Used in an environment of Pollution degrees 2 (i.e., where normally only nonconductive atmospheres are present).

B. Location and Space Requirements: Optimal performance of those portable HEPA filtration instruments are significantly affected at the installation stage. Certain considerations must be met to ensure maximum effectiveness particle removal and room pressuring (if applies). A dedicated source of electrical power must be located near the placement site. •

The location will be remote from the door entries. The room door opening directions should be suitable relative to the unit as to prevent air drafts.

•

Place the unit where there is less human traffic

•

Provide enough space at each side of the cabinet to allow easy access for maintenance as shown in below diagram (Min.Space Requirement). Min. 25 cm clearance above the unit may be required to provide efficient air distribution in the room.

•

If the optional room pressuring will be applied units must have at least 40 cm adequate space at top for the duct connection.

INSTALLATION Minimum space (mm) requirement diagram for proper function of AC-1500.

C. Fresh Air Requirements (optional – Positive Pressure Room): Prevention of airborne particle entrance into the room is needed in some applications in addition to air filtration. Such as, neutropenic patient isolation rooms, intervention rooms, etc. from corridor or surrounding into the room. To have a positive room air pressuring by using AC-1500 instrument, an airflow grill at one of the room wall, ceiling or the door is recommended in order to obtain proper pressure regulation (either positive or negative). D. Exhaust Requirements (optional - Negative Pressure Room): In some application specific needs, indoor room air exhaust is required to outdoor environment. To have a positive room air pressuring by using AC-1500 instrument, an airflow grill at one of the room wall, ceiling or the door is recommended in order to obtain proper pressure regulation (either positive or negative). Please see Filtrex Room E. Electrical Requirements: The main electrical supply should be equipped with an earth connection. Please refer to Appendix C for the wiring diagram.

INSTALLATION 3.2 CHECKS ON DELIVERY AND UNPACKING Filtrex instruments are transported with high strength cartoon on a wood pallet, wrapped in stretching film. After placing the unit in its intended site of use, carefully remove the carton and shrink-wrap. Inspect the unit that has not suffered any physical damage and scratches due to transport or improper handling of the package. If your unit is damaged, notify the delivery carrier immediately and retain the entire shipment intact for inspection by the carrier. Filtrex AC-1500 palette dimensions & Contents

a) Unit only AC-1500 Unit & User Manual Remote Control Key 220-240V Power Cable

b) Unit with room Pressuring kit AC-1500 Unit & User Manual Blower & Room Pressuring Manual Flexible Duct and Connection adaptor Fresh Air or Exhaust Filters Blower Speed Controller 220-240V Power cable Blower power cable

Prior authorization of Filtrex is needed for the return of goods. Unauthorized returns will not be accepted. File a claim directly with the freight carrier if the unit was damaged in transit. Shipping damages are not in responsibility of Filtrex. In case of any further transport, packing and storage by the user after the initial period of use (e.g. change of address), contact the technical assistance service or the distributor for more accurate and precise instructions or for assistance by authorized Filtrex service. • DO NOT move the unit by tilting it onto a hand truck. • DO NOT remove unit from its shipping skid until it is ready to be placed into its final location. Move the unit by placing a flat, low dolly under the shipping skid, or by using a floor jack. • DO NOT discard the shipping skid or packing material of the unit until you have checked all of the components, installed and completed the required tests.

INSTALLATION After you verify the pack components, move your unit to the placement location. Remove the cover film manually and cut the outer fixation ropes. Hold and remove cartoon top cover. Monoblock side cartoon panels are easily lifted and removed at this stage. Cut off the ixation ropes between wooden base and remove the cover stretch protection around instrument. If room pressure kit has been ordered a separate box will be found on top of the instrument. Bottom wood palette allows for lifting with a mechanical lift truck or floor jack. If you must lift the unit manually, follow safe-lifting guidelines.

3.3 INSTALLATION Depending upon the model or accessories you are installing, you may need wrench, nut driver set, flat-blade screwdriver and Philips screwdriver. If the room pressuring is not needed AC-1500 air cleaner works standalone at its proper location as defined in section 3.1B. If the room pressuring kit has been purchased installation must be done by experienced technical personnel or service engineers. Please see Filtrex Room Pressuring Kit User Manual. The electrical connection of the Filtrex is made by connecting the power cable located on back side of the unit to a 220-240V, 50/60 Hz. WARNING: The building electrical supply system for AC-1500 unit should have overload protection. The switch or circuit breaker is to be marked as the disconnecting device for the equipment. Please contact with Filtrex for installation procedures if you purchased Filtrex accessories or received optional parts on request.

4 SAFETY PRECAUTIONS 4.1 LIMITATION OF LIABILITY The disposal and/or emission of substances used in connection with this instrument may be governed by various federal, state, or local regulations. All users of this equipment are required to become familiar with any regulations that apply in the user’s area concerning the dumping of waste materials in or upon water, land, or air and to comply with such regulations. Filtrex is held harmless with respect to user’s compliance with such regulations.

4.2 PRECAUTIONS FOR SAFETY IMPORTANT: UV radiations emitted by the germicidal UV lamp can cause erythemas and conjunctivitis. AVOID EXPOSURE OF SKIN AND EYES TO DIRECT UV RADIATION Listed below are the most important guidelines to ensure safety. •

Read all instructions before operating the air cleaner.

•

Do not use air cleaner outdoors.

•

Place air cleaner where it is not easily knocked over by persons.

•

The air cleaner must be used in its upright position.

•

Always turn the air cleaner to the OFF position and unplug from the wall outlet when not in use.

•

To disconnect the air cleaner, first turn control to the OFF position, grip the plug and pull it from the wall outlet. Never pull by the cord.

•

Do not use any product with a damaged cord or plug or if product malfunctions, is dropped or damaged in any manner. Keep the cord away from heated surfaces.

•

Do not use air cleaner where combustible gases or vapors are present.

•

Do not expose the air cleaner to rain, or use near water, in a bathroom, laundry area or other damp location.

•

Do not allow foreign objects to enter ventilation or exhaust opening as this may cause electric shock or damage to the air cleaner. Do not block air outlets or intakes.

•

Locate air cleaner near the outlet and avoid using an extension cord.

•

A loose fit between the AC outlet (receptacle) and plug may cause overheating and a distortion of the plug. Contact a qualified electrician to replace loose or worn outlet.

•

Do not sit, stand or place heavy objects on the air cleaner.

•

Disconnect power supply before servicing.

•

Do not place any objects that may block air grills at top which can disturb air flow pattern.

•

AVOID blocking air grills/perforations by paper or cloth that might clog the air grills at bottom of the unit

Please carefully read Maintenance section (Chapter 7) of this manual for periodical requirements.

5 PERFORMANCE QUALIFICATION MICROPROCESSOR CONTROL AND FILTER COMPENSATION SYSTEM The proper performance is achieved by optimal working conditions the unit. The system provides flexibility to keep efficient particle removal by regulating the proper supply and return air velocities. Filtrex ensures the optimal performance at 1.0-2.0 m/s supply air and 0.5-1.0 m/s return air velocities (±5%). The system counters the effects of the filter loading of the main HEPA up to 300 Pa pressure. In case of the filter cloggings the microprocessor controlled automatic filter compensation feature of the unit provides the proper work parameters described above.

EX-FACTORY QUALITY AND TEST REPORT All Filtrex instruments / units are taken into quality control for passing physical, electrical, mechanical, electronical safety and conformities after manufacturing. Each Filtrex unit contains a quality control test report before released from factory. This report can cover the test results of airflow, filter integrity, noise and illumination. Quality tests are performed and reported according to requirements of international standards. or cloth that might clog the air grills at bottom of the unit Please read maintenance section for periodical checks to ensure safe and proper operational performance.

6 OPERATION The soft-touch control panel is microprocessor-controlled with a display showing all relevant data with regard to the operating functions, the different alarms and the error messages.

6.1. CONTROL PANEL SYMBOLS Control panel has 7’ wide touch sensitive screen showing information about operating parameters and alarm conditions. Functions and descriptions of the soft-touch sensitive symbols/buttons on control panel: NO

FUNCTION / CONTROL

DESCRIPTION

Unit ON/OFF

Fan start to work at ON position, and turn off at OFF position.

Date & Time

Shows current time & date. Settings can be adjusted by settings screen.

Air Flow Rate

Shows HEPA filtered air flow rate m3/h

Running Mode

“Normal indicates Work mode, “Stand-By” indicates Eco running mode

Alarm

Settings

Version

In case of activated alarm the symbol will be displayed. Pressing alarm button redirects to ALARM page (see descriptions of ALARM SCREEN below). Pressing the symbol redirects to SETTING pages. See descriptions of SETTING SCREEN below). Shows the installed software version

configuration

and

OPERATION Display of Setting Screen

• Pressing User symbol redirects to Airflow Rate Adjustment Screen • Technical service symbol redirects to authorized technical service screen where technical service password needs to activate the screen. Please contact with Filtrex to use this screen. • Pressing Home symbol redirects home page.

Display of Supply Airflow Rate Adjustment Screen

• Supply Airflow rates can be adjusted between 01500 m3/h. It is recommended to apply 8001000 m3/h (normal work mode), and 150-200 m3/h. for stand-by mode • Pressing Time Display Button redirects to Running Time Settings Screen. • Pressing Home symbol redirects home page.

Display of Running Time Settings Screen • The running times displayed on the screen give information about the unit operational hours of the unit. • If prefilter has been replaced, pressing this button resets the “filter replacement alarm” which becomes silent until next replacement. • If V-Compact Filter has been replaced, pressing this button resets the “filter replacement alarm” which becomes silent until next replacement. • If UV-lamp has been replaced, pressing this button resets the “UV-lamp replacement alarm” which becomes silent until the new UV-lamp life period ends. Alarm reactivates in 10 mins without lamp replacement.

OPERATION 6.2 OPERATION Please carefully read section 4.2 (Precautions for Safety) of this manual before starting operation. To start operation Press Blower button and revert to ON condition. Turn off the blower when alarm is activated. When alarm is activated by pressing ALARM button alarm screen will be displayed. Please refer to section 6.5 (Error Messages) to obtain information about alarm cause. Filtrex units are designed to operate both Work Mode or stand-by (Eco-Mode). DO NOT turn off blowers for short periods break times for energy savings. Take the unit to Stand-by Mode in case of emergency or short breaks.

OPERATION Display of Setting Screen

6.3 ERROR MESSAGES By pressing “Activated” ALARM button at home page alarm screen will be displayed. It is not possible to reach Alarm screen without any alarm activation. Pressing ‘SPEAKER’ symbol at alarm screen will pause audial alarm for 10 mins. Pressing Home symbol on left down corner redirects to home page. In case of activated alarm the source of the improper function will be flashed in one of the above screen.

ERROR MESSAGE

DESCRIPTION

Fan Failure

The blower malfunction or breakdown

HEPA Filter Alarm

HEPA filter clogging rate is over 70-80% Pre-Filter or V-Compact Filter usage time is up Airflow sensor failure

Pre-Filter Alarm

The blower malfunction or breakdown

V-Compact Filter Alarm

Filter usage time is up

UV Lamp Alarm

Check the UV lamp, the life of UV is expired

Technical Service Maintenance Alarm

Periodical Maintenance time is up.

If prefilter has been replaced, pressing this button resets the “filter replacement alarm” which becomes silent until next replacement. • If V-Compact Filter has been replaced, pressing this button resets the “filter replacement alarm” which becomes silent until next replacement. • If UV-lamp has been replaced, pressing this button resets the “UV-lamp replacement alarm” which becomes silent until the new UV-lamp life period ends. Alarm reactivates in 10 mins without lamp replacement. • If Technical Service Maintenance has been performed, pressing this button resets the “Technical Service Maintenance Alarm” which becomes mute until the next maintenance period. If the suggested actions do not solve your problem, please refer to Trouble Shooting section 8.0.

6.4 USAGE OF OPTIONALS OR ACCESSORIES Please contact with Filtrex if you have purchased together with Filtrex unit. Separate or modified user manual for options or accessories will be supplied.

7 MAINTENANCE DO NOT attempt to perform technical service operations if you are not properly trained.

7.1 PERIODIC MAINTENANCE MONTHLY MAINTENANCE General External & Internal cleaning of the instrument Pre-Filter Replacement Fresh Air Pre-filter replacement (if installed as optional) Alarm diagnostic tests

Clean the external surface of the unit by using an ordinary dish soap or some other commonly available products for varnished metal surfaces. For efficient cleaning of inside of the unit, spray the disinfection agent over the side walls, back wall and wait at least 20 mins. Clean the residual disinfectant by a wet sponge and make it dry to prevent corrosions on the surfaces. NOTE: Never use solutions containing free chlorine (for instance, sodium hypochlorite), which cause corrosion of steel resulting with work chamber surface damage. QUARTERLY MAINTENANCE

All monthly maintenance activities Mechanical functions control* V Type Pre-Filter Replacement Carbon Filter Replacement (if installed as optional) *The door and wheel mechanisms should be checked to ensure proper operation.

ANNUAL MAINTENANCE

All monthly and quarterly maintenance activities UV lamp replacement* Airflow velocity sensor calibrations** Room Pressure System control (if installed as optional) *Marked items can be done by user according to electronic display data and user manual **Actual velocity average reading should be at the specified velocity by using a calibrated thermal anemometer or other approved apparatus.

Unproper parts/items or performances must be replaced or repaired by a qualified personnel or technical service.

MAINTENANCE 7.2. REPLACEMENT OF PRE-FILTER Use glove and face mask for filter replacements. To Change the 1st Prefilter in the AC-1500: 1. 2. 3. 4. 5. 6.

Turn the unit “OFF”. Unlock the two door latches and open the door panel of the unit. Remove the preilter-1 from its base location. You may clean air inlet grills with vacuum and wipe the grills with a dry or wet cloth. Put the new filter to its location. Close the door panel and lock it in position by pushing down on the latches.

To Change the 2nd Prefilter (V Type Filter) in AC-1500: 1. 2. 3. 4. 5. 6. 7. 8.

Turn the unit “OFF”. Press the two door latches and open the door panel of the unit. Unscrew the prefilter side bindings from the two front side screws. Remove the preilter-2 from its base location. You may clean air inlet grills with vacuum and wipe the grills with a dry or wet cloth. Put the new filter to its location. Put back the tray together with prefilters to its position and tighten the screws Close the door panel and lock it in position by pushing down on the latches.

7.3 HEPA FILTERS (BY AUTHORIZED TECHNICAL PERSONNEL!) Important: Before replacing HEPA filters, the cabinet must be decontaminated before starting an operation. For safety of personnel and environment, the use of PVC gloves is recommended as well as the collection of the replaced HEPA filters in polyethylene bags. Important: Having replaced the filters, proceed with the calibration of the motor-fan speed. Carry out a check with a particle counter and possibly a D.O.P. test. For these operations contact your local distributor.

7.4. REPLACEMENT OF FAN-MOTORS: AUTHORIZED TECHNICAL SERVICE ONLY! UV lamp has been mounted inside of the unit and down behind the front door. To change the UV light bulb in your unit, turn off the instrument first and open the front door. Then remove UV lamp by pushing it out of the spring-loaded lamp socket and swinging it out of the other lamp socket. Install the new germicide lamp by reversing the removal procedure and close the door panel. NOTE: During the installation of the new lamps, pay attention not to leave fingerprints on the lamp.

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