Installation and Maintenance Manual Air Ceiling - tpiab. · PDF fileair distribution system with unidirectional flow installation and maintenance manual . ... 1.4 standard dimensions

Manual cod. 75807607A.0810

"ORIGINAL VERSION"

AIR CEILING AIR DISTRIBUTION SYSTEM WITH UNIDIRECTIONAL FLOW

INSTALLATION AND MAINTENANCE MANUAL

AIR CEILING Installation and maintenance manual

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INDEX

1 AIR CEILING: SYSTEM DESCRIPTION 8 1.1 STATIC FILTERING CEILING 8 1.2 VENTILATED FILTERING CEILING 8 1.3 CONSTRUCTION FEATURES 9 1.4 STANDARD DIMENSIONS OF THE SYSTEM 10 2 AIR CEILING OPERATION LIMITS 14 3 TRANSPORT PROCEDURES 15 3.1 TRANSPORT AND DELIVERY OF THE MACHINES ON SITE 15 4 INSTALLATION AND ASSEMBLY PROCEDURES 16 4.1 ASSEMBLY AND ANCHORING OF THE CENTRAL SUPPORT PLAQUE 16 4.2 ASSEMBLY OF THE AIR CEILING MAIN STRUCTURE 22 4.3 ASSEMBLY OF THE PLENUM 26 4.4 LIFTING THE CEILING 29 4.5 ANCHORING THE STRUCTURE TO THE SLAB 31 4.6 CLOSURE OF THE PLENUM 33 4.7 ASSEMBLY OF THE FALSE CEILING PLATES 35 4.8 ASSEMBLY OF THE LAMPS AND LAMP HOLDERS 36 4.9 ASSEMBLY OF THE FILTERING SYSTEM 38 4.10 ASSEMBLY OF THE MASKING 42 4.11 ASSEMBLY OF THE POST CLOSURE 45 4.12 ASSEMBLY OF THE FLOW STABILIZERS 46 4.13 ASSEMBLY OF THE POST PLATES 48 5 INSTALLATION OF THE RECIRCULATION SYSTEMS AND EQUIPMENT BARS 49 5.1 RECIRCULATION SYSTEM 49 5.2 EQUIPMENT BARS 51 6 ROUTINE AND MAJOR MAINTENANCE 53 6.1 MAINTENANCE OF THE LAMINATION TISSUES 53 6.2 MAINTENANCE OF THE AIR FILTERS 53 6.3 REPLACEMENT OF THE ANTIDAZZLE LAMPS 54 6.4 REPLACEMENT OF THE AIR FLOW STABILIZERS 54 7 APPENDIX 1: SUMMARY OF THE ASSEMBLY PARTS 55 7.1 SUMMARY OF NUTS AND BOLTS 56


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REVISIONS LIST

Revision Date Author Chapters Description

A 06/2010 AF All First version

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IMPORTANT WARNING

The appliance referred to in this manual has been built to operate without risks, for the designed purposes, as long as: • The installation, connection, piloting and maintenance are performed according to the instructions contained in the manuals and by

qualified personnel. • All the conditions prescribed and contained in the microprocessor user manual for the equipment in question are followed.

All uses that differ from those indicated and any alterations, that are not clearly authorised by the Manufacturer, are considered improper.

The liability for injuries or damages caused by improper use will be reconducted exclusively to the user.

THE INSTRUCTIONS CONTAINED IN THIS MANUAL ALLOW THE USER TO SATISFACTORILY OPERATE THE GOOD

FUNCTIONING OF THE UNIT.

FOR FURTHER AND MORE ADVANCED INSTRUCTIONS REFER TO THE TECHNICAL MANUALS GIVEN IN THE COMPUTER SUPPORT SUPPLIED WITH THE UNIT.

WARRANTY

The TECNAIR LV air conditioners are subject are subject to the present warranty terms, which are intended as accepted and automatically subscribed by the Customer when placing the order..

TECNAIR LV guarantees the correct construction and good quality of the product object of the supply. The supplier commits

himself, during the warranty period specified herein, to repair, or supply spares for, at his sole discretion, in the shortest period, the parts and/or components that should present any material or construction or working defect invaliding them for their intended use, provided that the defect is not due to negligence of the purchaser, to any routine wear and tear, to the negligence or inexperience of the User, to any damages by third parties, to random causes or force majeure, or to any other cause not attributable to construction quality defects. All the above without TECNAIR LV having to pay compensation for the direct or indirect damages of any nature and for any reason.

The replacement of the defective components takes place in the Uboldo Factory, and all the transport and replacement costs

are met by the Customer. The warranty term is of 2 (two) years from the delivery date. The warranty shall be automatically cancelled if the appliances

are repaired or modified or in any way completed (for example in the event of the electric control board not being supplied or other) or in the event of installation of non original spare parts (not supplied by TECNAIR LV).

The above mentioned warranty conditions shall be valid provided that the Customer has fulfilled all of his contract obligations,

with main reference to the payment terms.


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SYMBOLS

ATTENTION! DANGER! This symbol is used to indicate situations or operations that are potentially dangerous or that require the care of the operator.

NOTE! This symbol is used to indicate useful suggestions to the operator.

ELECTROCUTION HAZARD! This symbol is used to indicate situations or operations that potentially expose the operator the risk of electrocution.

DANGEROUS HANDLING! This symbol is used to indicate situations or operations that potentially expose the operator to the risk of crushing.

HEAVY LOADS! This symbol is used to indicate situations or operations in which the use of heavy loads is foreseen.

SAFETY REGULATIONS

These appliances are intended exclusively for professionally qualified operators. Read this manual carefully, following the illustrated procedures scrupulously is an essential condition for the safety of the

operator, the integrity of the appliances and the constancy of the declared efficiency. Do not tamper or modify the calibration of the safety and control systems. It is recommended to wear suitable protection such as glasses and gloves; some unit components can cause physical injuries

to the operator.

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RECOMMENDED EQUIPMENT

ADJUSTABLE MONKEY WRENCHES

294/ 300

CORDLESS DRILL/DRIVER

PIPE WRENCH

HAMMER DRILL

FLAT BLADED SCREWDRIVER

WALL ANCHOR PLUGS

PHILLIPS SCREWDRIVER

HYDRAULIC LIFTERS

HEX KEYS SIZES 3 – 4 – 5 – 6 – 8 – 10

TRACTION LIFTING SYSTEMS

END SPANNERS SIZES 6-7 TO 30-32

SILICON AND SILICON GUN

SIZE 6 SOCKET WRENCH

WORK LADDERS

BUSHINGS FITTING FOR ELECTRIC SCREWDRIVER

SCAFFOLDING


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1 AIR CEILING: SYSTEM DESCRIPTION 1.1 STATIC FILTERING CEILING

The STATIC FILTERING CEILING version is chosen when the external air treatment unit is sized to supply the total system flow rate. To ensure the level of quality required by the local Standards is reached, TECNAIR LV believes it is vital that the total flow rate supplied by the treatment unit is of at least 7.200 m3/h. In fact recirculation is performed in the machine and not in the room.

This is the solution required for the new installations and wherever it is possible to pass with channels of 7.200 m3/h from the

machine up to the unidirectional ceiling.

Static ceiling 1.2 VENTILATED FILTERING CEILING

The VENTILATED FILTERING CEILING version is chosen in the presence of renovations and in those applications in which it is not possible to pass with channels of 7.200 m3/h from the machine up to the unidirectional ceiling.

To ensure the level of quality required by the local Standards is reached, TECNAIR LV believes it is vital that the flow rate of

the air treatment unit supplies roughly 2.000 m3/h, and that recirculation is performed inside the room with relevant recirculation modules, made up of:

Constant flow fan Silencers on the return and on the delivery F9 filter on the return Non return fan gate down stream of the fan

This version is achievable with 3 or 4 recirculation modules, that supply the necessary residual flow rate to obtain the total flow

rate that can guarantee maximum protection of the surgical wound and of the operating field.

Ventilated ceiling

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1.3 CONSTRUCTION FEATURES

The unidirectional filtering ceiling in question is an air distribution system that can guarantee maximum protection of the surgical wound and of the operating field.

The air decontamination is certified by TUV at a level 4,4 according to Swiss guideline SWKI 99-3 of 2003 as well as the

German Norm DIN 1946/rev. February 2005. The Standard requires a level of decontamination higher than 3,0 for general operating theatres and higher than 4,0 for specialist operating theatres (orthopaedics, cardiac surgery, etc.)

The TECNAIR air distribution system through a unidirectional air flow guarantees an ISO5 class of air quality, according to the

ISO 14644-1 Standard. The standard unidirectional ceiling consists of:

Upper plenum to mix fresh air and re-circulated air, standard in galvanised steel, as an accessory in stainless steel. The plenum is airtight and an operating lamp can be mounted at its mid point.

Eight H14 efficiency absolute filters. The filter shape is trapezoidal, in order to give the best cover to the ceiling surface. The filters have a double density, higher in the centre to guarantee a higher air speed.

Certified airtight gasket system that can expel any air that could by-pass it.

Eight lamination tissues separated from the relevant filter, therefore replaceable without needing to change the filter as well.

Eight flow stabilizers to contain the air flow up to a height from the floor to be determined (standard 2100 mm, minimum 2000 mm). As an accessory, equipment bars can be fitted for medical gasses or electric and electronic connections. Each bar includes one or two guides for supporting and sliding wall units for medical devices.

Basic lighting system of the critical area, consisting of eight antidazzle lamps, which gives a luminance of roughly 260 lux on the operating bed.

1.3.1 NOT INCLUDED IN THE SUPPLY

If not otherwise indicated, the supply does not include:

The ducts to be installed in the false ceiling and the fan recirculation system if any Operating lamp and/or Operating lamp for unidirectional flows Anchor plugs for fixing the structure to the slab Lifting system for the air ceiling Cabling of the eight lamps of the basic illumination system Connection of the medical gas components to the relative distribution systems within the Hospital Connection of the electrical components The start-up of the system Cosmetic cover of the recirculation systems


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1.4 STANDARD SYSTEM DIMENSIONS 1.4.1 DIMENSIONS OF THE FILTERING SYSTEM

In the following figure the dimensional drawing of the unidirectional filtering ceiling is shown. The dimensions of the ceiling are standard and are indicated in mm.

In the drawing the dimensions of the opening of the plenum are shown so to connect the ceiling and the ducts. In general the

dimensions of this opening are standard, when the height of the real ceiling is of at least 3200 mm. Should this height be lower, it is possible to study a special solution and in such case the opening of the plenum needs to be studied case by case.

Distribution system dimensions

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1.4.2 DIMENSIONS OF THE RECIRCULATION SYSTEM

In the following figure the dimensional drawing of the unidirectional filtering ceiling is shown in the standard ventilated execution. The dimensions of the recirculation modules are shown as well as their position inside the room.

Obviously the ducting shown in the figure is only for information and qualitative purposes; it will be up to the designer to

dimension and position the ducts on the basis of the available space.

Recirculation system dimensions

1.4.3 REAL CEILING HEIGHT FROM THE FLOOR

The evaluations to establish the installation height of the unidirectional filtering ceiling depend on the height of the real ceiling of the room and on the installation height of the operating lamp. In fact the manufacturers of operating lamps require an optimal installation height of 2,8 metres from the floor.

This means that our ceiling must end with a false ceiling height of 2,7 metres from the floor. Our unidirectional ceiling has a height of 500 mm, therefore the minimum height of the real ceiling must be of 3,2 metres from

the floor.


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1.4.4 HEIGHT FROM THE FLOOR OF THE FLOW STABILIZERS

The flow stabilizers, necessary for the air flow control and therefore to reach the air sterility level required by the Standards, must however end at such a height from the real floor so not to disturb the surgical team during its work. In the event of not installing the air curtains in fact the peripheral layers of the air flow open and the air flow itself loses speed in its central part therefore reducing the effect of the expulsion of the endogenous contamination (patient and surgical team).

The flow stabilizers are in stratified glass so to guarantee maximum security against breaking without limiting the surgeons'

vision. Therefore Tecnair LV suggests a minimum height of the flow stabilizers of 2,1 metres from the floor, equal to that of the

operating theatre doors. 1.4.5 DUCTING SYSTEM IN THE FALSE CEILING

In general, the ducts to be installed in the false ceiling are not included in the supply. As accessories, externally thermo-insulated galvanised steel ducts, either for the static or for the ventilated ceiling can be

supplied or supplied and installed. The accessory does not foresee a survey on the site to verify the correct dimensions of the operating theatre. Therefore the

Customer must supply an electronic drawing with the correct dimensions to project, supply and install the ducts system.

WARNING!

In the event of a wrong electronic drawing of the room dimensions, TECNAIR LV cannot

be held responsible for the project and the subsequent supply.

1.4.6 AIR DISTRIBUTION AND DELIVERY PLENUM

As standard the air distribution and delivery plenum is supplied in galvanised steel, it can alternatively be supplied in stainless steel as an accessory. The plenum is airtight and foresees room for an operating lamp to be anchored to the ceiling. 1.4.7 OPERATING LAMP

The standard version of the filtering ceiling has a central opening that allows the support of the operating lamp to be fixed to the real ceiling. The anchoring of the lamp must be performed before fitting the plenum to the filtering ceiling. 1.4.8 EQUIPMENT BARS AND ACCESSORIES

Since the stabilizers make it difficult to install the surgeon and anaesthetist’s wall units, there are eight bars foreseen

underneath them which can separately host the sockets for medical gasses and electricity connection, in a position external to the air flow and therefore non contaminating. Connections for radios and relative speakers and personal computer connection sockets can also be foreseen. Alternatively empty aluminium bars can be requested.

Each of the bars includes one or two rails for the support and movement of surgical equipment for up to a maximum of 60 kg

per bar. The connections of components for medical gasses, when present, are installed but not connected. The wiring of the electrical components, when present, is installed but not cabled.

The flow stabilizers can host, externally to the air flow, one or more LCD monitors or second-count watches as an accessory.

The LCD monitors satisfy the safety and electromagnetic compatibility (EMC) Standards, for applications on medical devices. The second-timer watches are studied for surgical room application. In the event of installing wall units or particular surgical apparatus (such as angiograph, C-arm, etc), it is possible to raise the panels to a height that guarantees a passage of the instruments.

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1.4.9 FILTERING SYSTEM

The filtering system is made up of eight H14 efficiency absolute filters of trapezoidal shape in order to guarantee the total coverage of the octagonal surface of the unidirectional ceiling and have the lowest possible pressure drop.

The absolute filters have a higher filtration average in the central part of the ceiling in order to pressure drops, obtaining a

higher speed of the air and guaranteeing a better expulsion effect of the contamination. A circular crown around the H14 filters guarantees that, even if a gasket is damaged or badly installed, no air can by-pass the

absolute filters nor reach the aseptic nucleus of the room. The characteristic curve and dimensions of the absolute filter are shown in the figure below.

Filter features


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2 AIR CEILING OPERATING LIMIT

The TECNAIR LV unidirectional filtering ceiling in order to work correctly must be installed so to guarantee an ISO 5 air quality level. It therefore cannot be reconducted to Tecnair LV if the following conditions are not met:

UNIDIRECTIONAL FLOW FILTERING AIR CEILING

CHARACTERISTICS STATIC VENTILATED

MAXIMUM INTERNAL TEMPERATURE 30 � 30 �

MINIMUM INTERNAL TEMPERATURE 18 � 18 �

MAXIMUM INTERNAL HUMIDITY 60 %Ur 60 %Ur

MINIMUM INTERNAL HUMIDITY 30 %Ur 30 %Ur

STORAGE CONDITIONS Temperature from -20°C to + 50°C - Humidity 10%Ur to 90 %Ur non condensing – Store in a room that is closed and protected from external atmospheric agents.

VENTILATED TYPE STATIC

EXTERNAL AIR RECIRCULATION

NOMINAL AIR FLOW RATE 7,200 m3/h 2,400 m3/h 4,800 m3/h

MINIMUM AIR FLOW RATE 6,500 m3/h 2,000 m3/h 4,500 m3/h

MAXIMUM AIR FLOW RATE 8,000 m3/h 3,200 m3/h 4,800 m3/h

MINIMUM REAL CEILING HEIGHT 3,200 mm

MINIMUM HEIGHT FROM THE FLOOR FOR THE EQUIPMENT BARS 2,000 mm

For different work conditions contact TECNAIR LV offices

WARNING!

If these simple technical specifications are not conformed to, the TECNAIR LV certified air

quality level is compromised.

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3 TRANSPORT PROCEDURES

WARNING! ALWAYS USE SUITABLE EQUIPMENT TO MOVE THE UNIT.

3.1 TRANSPORTATION AND RECEIVING THE MACHINES ON SITE

During transportation all the ceiling elements and any accessories must not be laid on their sides or overturned but must always remain upright at all times, otherwise their internal components could be damaged. As the Carrier is always responsible for damage sustained by the goods during transport, before signing the delivery note to accept the supply, make sure the packaging is intact and that there are no visible signs of damage to the air conditioner or oil/refrigerant leakage. In the event of evident damage to the unit, or if there is the slightest doubt as to whether the conditioner has been damaged during transport, it is necessary to express your reservations in writing to the Carrier, whilst also informing the TECNAIR LV Sales Department.

When unloading the units, please observe the procedures indicated in the illustrations reproduced below, which are also affixed to the original packaging of the unit. If the ceiling has not got to be installed immediately after its arrival on site, it has to remain in its original packaging and be stored in a closed environment, with environmental conditions as per the table in the previous chapter.

To avoid any problems and damage to the components during transportation, we recommend that the units should only be

removed from their packaging when they have reached their final destination. It also essential to ensure that the floor on which the packages will be placed is capable of supporting its weight. This last

information can be seen on the commercial documentation or on the goods delivery note.

Suggestions for handling


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4 ASSEMBLY AND INSTALLATION PROCEDURES

WARNING!

The following procedures are shown in chronological order in such a way to

encourage the correct installation of the system.

Anticipating or postponing one or more procedures could cause an obstacle in the following assembly and installation phases.

4.1 ASSEMBLY AND INSTALLATION OF THE CENTRAL PLAQUE

The operation of fixing the central plaque to anchor the structure to the ceiling is a fundamental operation to position the ceiling inside the room.

The useful data for a correct installation of the ceiling is as follows:

Weight of the ceiling varies between 750 kg and 800 kg Surface of the ceiling roughly 3,2 m x 3,2 m Anchoring dimensions of the central plaque 450 mm x 450 mm

Measure the exact position of the operating lamp (or the centre of the filtering ceiling) and trace the four holes for the passage of the lamp using the central plaque.

In this section the selection of the anchor plugs is of crucial importance, due to the type of slab present in the future operating theatre. If the slab is made of reinforced concrete, TECNAIR LV can specify the type of anchor plugs to be used.

If the slab is instead made of other materials or hollow bricks, the anchor plugs must be chosen in function of the material (for

example chemical anchor plugs in the event of hollow bricks) and the decision must anyway be made by a qualified installer. Therefore once the Air Ceiling by Tecnair LV has been bought, it is up to the Customer to find out the type of slab on which

the installation of the anchor plugs must performed.

WARNING!

The Tecnair LV supply includes only the central plaque and not the anchor plugs.

If an incorrect drilling is performed, for example drilling the steal cover, it is necessary to inform the safety inspector and technical manager of the construction site, as the stability

of the unit might be compromised.

To assemble the anchoring system plaque it is absolutely necessary to have a “case by case permit” from the Site Manager.

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4.1.1 ANCHORING THE CENTRAL PLAQUE

Once the necessary information for the correct anchoring of the structure to the slab has been verified, fix the central plaque (C01) to the filleted bolts which come out of the structures cover towards the bottom of the washers and the hexagonal anchor plugs, as shown in the figure below.

Anchoring the central plaque Sectional view of the anchoring 4.1.2 SUPPORT BARS ASSEMBLY

The standard version of the filtering ceiling has a central opening that allows the support of the operating lamp to be fixed to the real ceiling. The anchoring of the lamp must be performed before fitting the plenum to the filtering ceiling.

This solution is applicable when the distance between the filtering ceiling and the real ceiling is minimum and does not need

any further support system. Once the plate has been fixed to the slab, screw the filleted bar M20 with the appropriate nuts (M20 UNI 5588) and washers

(A20 UNI 1751) in one of the four holes in the plaque.

Repeat the same operation until all four holes are fixed, as shown in the figure.

Support bars assembly Assembly completed


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4.1.3 ANCHORING THE SUPPORT BARS WITH REINFORCEMENT SYSTEM (ACCESSORY)

If the distance between the real ceiling and the filtering ceiling is large, it is necessary to reinforce the anchoring of the central plaque (accessory). For this operation reinforce tubes (C11) and spacers (C12) are used, as shown in the table below.

C11 - Reinforce tubes C12 - Spacers

Take a reinforce tube (C11) and make it pass through the threaded bar until it reaches the central plaque. Insert the spacer (C12), screw it to the bar and connect it to the end part of the reinforce tube.

Repeat the operation on all four threaded bars, as shown in the figure.

Support system assembly Assembly completed

.

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4.1.4 SUPPORT ASSEMBLY FOR THE CENTRAL SUPPORT

At this point of the assembly, whether it is the standard version or the one with reinforce tubes, the steps described below will be the same.

The first step is to insert the intermediate anchoring plaque (C02) on which the flanged tube of the operating lamp is fixed. The flanged tube is a piece of the operating lamp supplied by the lamp manufacturer and not by Tecnair LV. The shape and

presence of the holes for anchoring to the slab therefore depend on the chosen brand, but are mostly similar. The thing that varies the most and that is necessary to know for the correct assembly is the diameter where the holes are

positioned for anchoring. Therefore the piece manufactured by us, the intermediate anchoring plaque (C02), depends on which operating lamp is mounted and in order to build it we need this information.

Intermediate anchoring plaque

Insert the anchoring plaque making the four threaded bars pass through the four holes of the plaque and fix with nuts (M20 UNI 5588) and washers (A20 UNI 1751), as shown in the figure.

Intermediate anchor plaque assembly


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4.1.5 ASSEMBLY OF THE FLANGED TUBE OF THE OPERATING LAMP Take the flanged tube of the operating lamp, which is supplied by the lamp manufacturer and fix it on the bars of the

intermediate anchoring plaque. As an example we shall take a flanged tube with six holes of M12 diameter. Use 12 nuts (M12 UNI 5588) and 6 flat washers (Ø12 UNI 6592) to anchor the flanged tube to the threaded bars, as shown in the figure.

Flanged tube assembly for the operating light

WARNING!

In this phase of the assembly follow the instructions given by the manufacturer of the

operating lamp.

To facilitate the subsequent electrical connection we recommend foreseeing any possible sheath or electrical ducts passages and fixture of the operating light components.

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4.1.6 ASSEMBLY COMPLETION OF THE CENTRAL SUPPORT

The completion of the assembly of the central plaque is performed with the relevant central support plaque (C03) and four spacer tubes (C04), as shown in the figure below.

C03 - Central support plaque C04 - Spacer tube

Take the four spacer tubes (C04) and insert them in the four threaded bars until they are fixed in the intermediate anchoring plaque. Insert the central support plaque (C03) making the central hole pass through the flanged tube of the operating lamp and the four lateral holes through the threaded bars. Complete the operation by fixing the plaque to the threaded bars with nuts (M20 UNI 5588) and four washers (A20 UNI 1751).

In order to finish this step, insert 8 nuts (M12 UNI 5588), one for each threaded bar of the central support plaque (C03), as

shown in the figure below.

Plaque assembly Nuts assembly


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4.2 ASSEMBLING THE MAIN STRUCTURE OF THE AIR CEILING

The next step is to assemble the main structure on the floor. The structure is made of extruded aluminium components, connected to each other via corner fittings and silicon and

tightened with screws. In the following table the materials used and their codes and quantities necessary for installation of the structure are shown.

Code Description Quantity

P01 Central crown 1

P02 External profile 4

A06 Middle profile 8

P03 Vertical posts with external profile 4

Screw M5x16 UNI 5931 16

Washer Grower A5 UNI 1751 16

Adhesive TEROSTAT 935 Henkel 1

Material and quantity table for installation of the main structure

Below there are the drawings to recognise the materials used in this installation phase, in particular the preassembled parts, such as the central crown (P01) and the vertical posts with the external profile (P03).

Central crown (P01)

Vertical posts with external profile

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Take the four identical assembled parts of the vertical posts with external profile (P03) and position them on four sides, as shown in the figure.

Vertical posts positioning

Take an external profile (P02) and use the TEROSTAT adhesive on both lateral edges of each profile, as shown in the figure.

Sealant distribution

WARNING!

All possible escape routes must be covered and sealed.


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Once the glue has been applied to the sides of the external profile, take this profile (P02) and insert it between two vertical posts (P03) so that it touches the external profile. Fix the elements to each other with the relevant screws and washers on the posts.

Repeat the same operations to obtain the entire external perimeter, as shown in the figure below.

Completed profile assembly

Take a middle profile (A06) and use the TEROSTAT 935 Henkel adhesive on both lateral edges of each profile, as shown in the figure.

Sealant distribution

WARNING!

All possible escape routes must be covered and sealed.

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Take the middle profile (A06), insert it in the connection angle between the two external profiles and fix it with a screw and a washer, as shown in the figure.

Middle profiles connection Connection completed

Position the central crown (P01) on a surface at the same level as the external profiles. Take the internal side of the middle profile (A06) and fix it to the central crown with two screws (M5x16 UNI 5931) and two washers (A5 UNI 1751), as shown in the figure.

Connection to the central crown Connection completed

Repeat the same operation for all the middle profiles. Once the assembling is finished, the main structure of the air ceiling is obtained, as shown in the figure below.

Main structure assembly completed


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4.3 ASSEMBLING THE PLENUM

Once the main structure of the ceiling has been assembled, the next step is assembling and anchoring the plenum on it. In the table below the materials and quantities required to assemble the plenum are specified.


B01 Plenum component 8




Flat washer Ø4 UNI 6592 176

Nut M4 UNI 5588 88

adhesive TEROSTAT 935 Henkel 1

Table of materials and quantities for the installation of the plenum

Below there are the images to recognise the materials used in this installation phase:

Plenum component

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Take a plenum component (B01), use the adhesive and position it on one of the eight sides of the structure and fix it with 8 screws (M5x16 UNI 5931) and 8 washers (A5 UNI 1751), 6 on the exterior and 2 on the interior, as shown in the figure.

Once the first component has been fixed, it is possible to pass to the adjacent one, which will be fixed to the structure as per the previous one. Use the adhesive TEROSTAT on the joint surface of the two components.

External anchoring of the plenum Anchoring of the plenum completed

At this point the two plenum components are fixed to each other via the relevant screws (M4x20 UNI 5739) with two flat

washers (Ø4 UNI 6592) and a screw nut (M4 UNI 5588) for each hole, as shown in the figure.

Anchoring the internal part of the plenum


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Repeat these operations for each component of the plenum, that is, anchoring it to the structure and then anchoring it to the adjacent component. The assembled plenum is then obtained, as shown in the figure below.

Plenum assembly completed

WARNING!

The plenum must be perfectly air tight.

All possible escape routes for the air must be sealed with the adhesive TEROSTAT 935 Henkel. The joints between the components and between the components and the profiles with which

one is in contact must be sealed using the adhesive.

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4.4 LIFTING THE STRUCTURE

WARNING! ALWAYS USE SUITABLE EQUIPMENT TO MOVE THE UNIT

The structure lifting phase is one of the most delicate ones in the entire installation. The weight of the structure is in fact 310 kg and its dimensions approximately 3,2 m x 3,2 m.

In this paragraph some ways to lift the filtering ceiling are shown. It is obviously up to the installer to choose the best and

safest solution according to the tools available and the space available during the installation. The instruments for lifting the plenum are the classic oleodynamic tools, cables, hydraulic lifts or other instruments capable of sustaining the weight of the structure and lift the ceiling up to the real ceiling.

In the figure, as an example, a hydraulic lift and a traction system are shown.

One of the possibilities is to use two elevator lifts. Place a piece of wood on the forks of each elevator lift, position the elevator lifts to the two opposite sides of the plenum and lift the two forks of the elevator lift simultaneously, as shown in the figure.

Lifting with an elevator lift


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Another solution is to use cables. As an example take four cables, tie them to two joint covers which lean on the supporting structure, and lift the plenum with pulleys, as shown in the figure.

Lifting with cables

During the lifting of the structure be extremely careful, as the eight terminal bars in the central support plaque must be inserted in the eight holes of the central support, as shown in the figure.

Threaded bars insertion Insertion completed

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4.5 ANCHORING THE STRUCTURE TO THE SLAB

Once the entire structure has been lifted and connected to the central plate, it is time to anchor the structure to the slab. In this operation each lateral plate, positioned above every vertical post, is fixed to the slab as done previously with the central

plaque (see paragraph 4.1). Even in this case the same precautions as the ones taken for the small blocks are to be used, according to the type of slab present. Before fixing the lateral plate to the slab, use the regulating slot to carefully position and fix the sections of the plate to the vertical post below.

In the figure the two holes present on each lateral anchoring plaque on which the plaque itself is fixed to the ceiling are

displayed. The operation must therefore be repeated for all eight lateral plaques.

Holes for anchoring to the slab Anchoring completed

In some situations the pre-drilled holes in which the anchor plugs have to be fixed to the real ceiling might not be available. If

drilling is done incorrectly, for example drilling through a steel reinforcing bar, it will be impossible to fix the anchor plug in the slab. For this reason TECNAIR LV supplies as an accessory a support bar for anchoring to the ceiling. This system is more flexible

as it allows for a horizontal movement on the guides of the profile and a rotational movement around the axis, therefore it allows for the anchoring of the ceiling in a comfortable point.

In the figure below it is shown how to fix to the slab on the external perimeter of the ceiling when the anchor plugs cannot be placed in some of the provided holes.

Anchoring with mobile bracket


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Once all the lateral points of the plenum have been fixed, it is time to centrally anchor the plenum. First of all, insert the crown gasket (B05). Take the gasket and insert it through the flanged tube of the operating lamp. Close to the central crown, insert the gasket into

the threaded bars present in it. Make the gasket adhere to the central crown and to the flanged tube, so that there are no possible air passage points.

Crown gasket Gasket installation

Use 8 nuts (M12 UNI 5588) and 8 flat washers (Ø12 UNI 6592) and screw them to the eight threaded bars on the central plaque. One must screw the nuts on the threaded bars so that the upper surface of the middle profiles is perfectly levelled, that is therefore on a surface (all on the same level) perpendicular to the force of gravity.

For each middle profile position the spirit level. Start screwing the reference nuts to the profile until the profile itself is

perpendicular to the flat surface, as shown in the figure. Repeat this operation for all eight middle profiles.

Structure levelling Tightening of the support bolts of the central crown

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4.6 CLOSING THE PLENUM

The next step is to close the plenum via the relevant panels. The materials necessary for this operation are described in the table below.


B02 Front closing panel 8

B03 Back closing panel 4




Grower washer A6 UNI 1751 40

The first phase is closing the front with the eight panels (B02). Take a front closing panel (B02), position it making it adhere to the hole and fix it to the main structure with 4 screws (M4x20 UNI 5739) and 4 flat washers (Ø4 UNI 6592), as shown in the figure. Repeat the operation on all eight sheets until the front part of the plenum is closed.

Closure of the central part of the plenum 4.6.1 ASSEMBLING THE FINAL ELEMENTS OF THE DUCTING

Before mounting the filter it is necessary to install the final connection parts for the ducts, so that it is not necessary to work inside the plenum, therefore avoiding the risk of fouling the filters or damaging them.

The plenum with the various closures has to be perfectly airtight, therefore it is necessary to seal the screwed parts as well. In

the figure below a feed box is used as the final element of the duct, but in general the final elements can be of various types, according to what the designer of the ducts decides on.

Assembling the final elements of the ducting


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4.6.2 CLOSURE OF THE AIR INFLOW VENTS

Take a back closing panel (B03), position it on the external hole with the threaded inserts facing towards the exterior. Take ten screws (M6x30 UNI 5931) and ten flat washers (A6 UNI 1751) and fix them to the inside of the back plenum cover, as shown in the figure.

Repeat the operation on the sides of the plenum which are to be closed.

Closing panel Fixing the closing panel

WARNING!

The choice of the parts of the plenum to be closed depends on the positioning of the

ducts chosen during the design phase. Before starting this phase verify which parts need to be closed.

Four panels for four closures are used for the static version.

Either four or no covers are used for ventilated versions depending on the choice made in

the design phase of the recirculation system.

4.6.3 CONNECTION OF THE EXTRACTION SYSTEM

Between the absolute filters there is an empty space. If there is a leakage of the gasket of the absolute filter, the air which bypasses the filter is trapped in this area.

For this reason this space has to be kept in depression and the air contained in it has to be expelled. Remove the closing cap

on the sockets placed on the external profiles (P02) (see figure) and connect them with a tube to the expulsion ducts of the unit, or if present with the aspiration of the recirculation fans.

Closing cap of the extraction system

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4.7 ASSEMBLING THE FALSE CEILING PLATES

In this phase of the installation it is time to the assemble the false ceiling plates. The materials used in this phase are the following:


A24 False ceiling plate 8



Take a false ceiling plate (A24) and position it between two vertical posts. Use four screws (M8x20 UNI 5931) and four washers (Ø8 UNI 6592) and fix the plate to the two vertical posts, as shown in the figure.

Repeat the same operation for each side of the structure.

False ceiling plate assembly Assembly completed


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4.8 MOUNTING THE LAMPS AND LAMP HOLDERS

In this step of the installation a lighting system of the aseptic nucleus is installed, made up of 8 antidazzle lamps. The elements used in this operation are summarised in the following table:


A13 Lamp holder 8

Antidazzle lamp 8

A14 Left side anchoring bracket 8

A15 Right side anchoring bracket 8




Take a lamp holder (A13) and position it between two vertical posts outside the structure. Use four screws (M8x20 UNI 5931) and four washers (Ø8 UNI 6592) and fix the lamp holder to the two vertical posts, as shown in the figure.

Lamp holder assembly

Take an antidazzle lamp, a left anchoring bracket (A14) and a right anchoring bracket (A15). Fix the brackets to the lamp with the self tapping screws 4,2x13, as shown in the figure.

Lamp supports assembly

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Once the brackets have been fixed to the lamp, take this new piece and insert it under the lamp holder. Fix the lamp into one of the pre-drilled holes on the lamp holder.

The choice of the position is only dictated by the intensity of the lighting which is required on the aseptic nucleus. In this

example we fix the lights to the central hole, using two screws (M6x30 UNI 5931) and two washers (A6 UNI 1751), as shown in the figure.

Repeat the same operation on all eight sides of the structure, until the complete mounting of the lamp for the illumination of

the aseptic nucleus is achieved.

Assembly completed

WARNING!

When this phase of the assembly is completed, it is recommended to complete the

installation the lamps seeing to their electrical wiring.

In any case, to avoid any inconveniences, it is recommended to perform the wiring before installing the flow stabilizers and the room false ceiling closure.

For the wiring refer to the instructions contained inside the lamp packaging.


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4.9 MOUNTING THE FILTERING SYSTEM

The next step describes the mounting of the support structure in which the absolute filters are positioned and the operations for closing in length, so to guarantee the perfect air-tightness of the filtering surface.

The materials used in this operation are:


Trapezoidal filter 8

Filter equaliser tissue 8

Threaded bar M4 24

A18 C bar for filter fixing 8

Filter assembly tool 2


Nut M4 UNI 5588 112 4.9.1 ASSEMBLING THE FILTER SUPPORT STRUCTURE

The first operation consists of mounting the support structure on which the filters will be placed afterwards. Take an M4 threaded bar and a nut (M4 UNI 5588), screw the threaded bar on one of the holes placed on the lower surface of

the middle profile, as shown in the figure.

Repeat the same operation for each of the three holes on the middle profiles, for a total of 24 threaded bars.

Positioning the support threaded bars

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4.9.2 POSITIONING AND ANCHORING THE ABSOLUTE FILTERS

In this phase the absolute filters are positioned and fixed to the structure. Due to the fundamental importance of the absolute filters for the correct installation of the system, it is necessary to always

check that the filters are stored in their casing and that they do not have any type of damage. The filters are attached to the structure by their small plates and support blocks already positioned on the external profiles and

on the profiles of the central crown. To facilitate this stage, use the two filter assembly tools supplied (see figure).

Filter support tool

Screw the tool into a hole in the external profile and into a hole in the central profile, as shown in the figure.

External profile positioning Internal profile positioning

Take a filter being extremely careful not to touch the shatterproof system.

Filter


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Pick up the filter with the gasket on the upper side in the area delimitated by the two profiles, as shown in the figure.

Filter positioning

WARNING!

Pay attention to the threaded bars which delimitate the position of the filter. Avoid

damaging the shatterproof system.

Once the filter has been raised, turn the two tools to block it, as shown in the figure.

External locking Internal locking

Go to the filter anchoring to the structure phase.

Tighten the small plate to the support block, so that the small plate locks onto the filter and the profile of the central crown. In the same way fix the filter to the external profile of the structure, with the two support blocks, as shown in the figure. When the filter has been fitted, remove the two mounting tools and screw them into the adjacent profiles. Repeat the same lifting, positioning and anchoring procedure for all the other absolute filters.

External anchoring Internal anchoring

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4.9.3 LONGITUDINAL TIGHTENING OF THE FILTER GASKETS

Take a C bar for tightening the filters (A18). Position the tightening bars on one of the radial beams of the structure, inserting the three threaded M4 bars in the three holes

of this bar. Take three washers (Ø4 UNI 6592) and three nuts (M4 UNI 5588) and fix the bar to the threaded bars, as shown in the figure.

Repeat the same operation on all eight bars.

Tightening bar installation 4.9.4 MOUNTING THE FLOW EQUALISER LAMINATION TISSUES

Once the C bars have been installed, the assembly of the filtering system is completed with the flow equaliser lamination tissues.

As with the filters be extremely careful during lifting to avoid ruining the lamination surface. Take a tissue, position it on one of the eight segments of the ceiling using the bars present on the C bars. Take eight nuts (M4

UNI 5588) and eight washers (Ø4 UNI 6592) to fix the tissue to the C bar, as shown in the figure. Repeat the same operations for the other tissues, until the filtering system assembly is completed.

Lamination sheet installation Frame mounting


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4.10 MOUNTING THE MASK

In this phase the cosmetic masking of the ceiling is completed with specific steel profiles and mouldings, to obtain the longitudinal, transversal and central masking.

The materials used in this operation are the following:


A19 Central mask 2

A20 Longitudinal mask 8

A21 Perimetrical mask 8

A22 Central block 2

A23 Caps for masks 40






Take a central mask (A19), position it on the central crown so that the four holes of the central mask are placed under the central holes of the four sides of the central crown. Take four screws (M5x10 UNI 5931) and four washers (A5 UNI 1751) and fix the central mask to the central crown, as shown in the figure.

Repeat the same operation with the other central mask.

Central mask installation

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Take a longitudinal mask (A20) and position it between the two tissues. Take two screws (M5x16 UNI 5931) and fix the longitudinal mask to the structure, as shown in the figure.

Longitudinal mask external mounting

Take two screws (M5x20 UNI 5931) and fix the longitudinal masks on the central crown of the structure, as shown in the figure.

Longitudinal mask internal mounting


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Take a perimetrical mask (A21) and position it on one of the sides of the structure. Take three screws (M5x16 UNI 5931) and fix them on the perimetrical mask, as shown in the figures below.

Fix all the other masks, alternating one for the length and one for the perimeter, until the surface is completely covered.

Perimetrical mask assembly

Take a central block (A22), position it under the central mask and anchor it with the two relevant screws (M4x20 UNI 6109), as

shown in the figure. Repeat the same operation with the other central block, as shown in the figure.

Central mask installation Installation completed

At this point we have got to the last step of the covering. Take 40 caps (A23) and insert them in the holes along the perimeter of the structure, as shown in the figure.

Covering caps installation

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4.11 ASSEMBLING THE POST CLOSURE

In this phase of the installation all the post base closures are installed. The materials used in this phase of the installation are:


A25 Post base closure 8

Screw M5x12 ISO 7045 16


A26 Cover for blind holes 16

A27 Screw cover washer 16

Take post base closure (A25) and insert it under the terminal part of the vertical post. Take two screws (M5x12 ISO 7045), and use them to fix the closure of the lower part of the vertical post and cover the two

holes with the dedicated covers for blind holes (A26). Take two screws (M5x12 UNI 5933) and two screw cover washers (A27) to laterally fix the closure to the vertical post, as

shown in the figure.

Repeat this operation for all eight vertical posts.

Post base closure installation


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4.12 MOUNTING FLOW STABILIZERS

In this phase the installation of the eight stratified crystal glass of the air flow stabilizers is performed. Remember that the glass panels can reach a height from the ground of up to 2000 mm, whilst the standard height is of 2100 mm.

The materials used in this step of the installation are the following:


A29 Flow stabilizer 8

A28 Metal disk with threaded shank 32

Nut M6 UNI 5588 32


Take a flow stabilizer (A29) and position it between two vertical posts, as shown in the figure.

WARNING!

Be extremely careful during this operation. We advise to accurately clean the stabilizers

and to use proper gloves in order to not to dirty them during the assembly.

Flow stabilizers installation

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Insert the metal disks with threaded shank (A28) with its plastic gasket into the four holes of the glass.

Once the metal disk has been inserted, fix the stabilizers to the structure using four nuts (M6 UNI 5588) and four washers (Ø6 UNI 6592), as shown in the figure.

Repeat the same operation on all the stabilizers.

Flow stabilizers assembly

Installation completed


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4.13 ASSEMBLING THE POST PLATES

This is the last phase of the ceiling installation. It consists in installing the post plates. The materials used in this operation are:


A31 Post plate 8


A27 Screw cover washer 32

Take a post plate (A31) and insert it in the vertical post. Use four screws (M4x20 UNI 6109) and four screw-cover washers (A27) to fix the plate to the post, as shown in the figure below.

Repeat the same operation on all eight plates, until the assembly of the filtering ceiling is completed.

Assembling the post plates

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5 ASSEMBLING RECIRCULATION SYSTEMS AND EQUIPMENT BARS

The assembling procedures described in this chapter refer to all the accessories of the unidirectional air ceiling, which are not included in the standard configuration, i.e. recirculation systems and equipment bars. 5.1 RECIRCULATION SYSTEM

Each recirculation system has the following is made up of:

Return air plenum with F9 filter Rectangular silencer Recirculation plenum with electronic fan Recirculation ducts and relative silencers

Below there is a construction drawing of the recirculation system, in order to help the recognition and the position of all its

components.

Construction drawing of the recirculation system


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5.1.1 RETURN AIR PLENUM WITH F9 FILTER

The return air plenum is made up of four vibration damping feet, adjustable in height, which help to position in the best way and to level the plenum.

We usually supply only one plenum complete with F9 filter, as an assembling example. All the other plenums are without

filters, in order to avoid the filters becoming dirty during the recirculation systems assembly. Use the plenum completed with F9 filter, as an example to assemble all the other plenums correctly. In order to assemble the filter correctly, take the four small flaps and insert them in the appropriate slots in the four angles of

the frame. Then take the filter and put it inside the frame, so that the filter adheres perfectly to the gasket fitted on the frame. Use the small flaps to fix the filter into the frame.

WARNING!

Allow for frontal accessibility for ordinary maintenance and substitution of F9 filter.

5.1.2 RECTANGULAR SILENCER

Once the return air plenum with F9 filter has been fitted, then the rectangular silencer can be assembled. Take the gasket included in the supply and put it on both flanges of the silencer. Take the silencer and put it on the return air plenum. Fix the two components to each other with the appropriate screw, flat

washer and grower washer, all included in the supply. 5.1.3 RECIRCULATION PLENUM

The recirculation plenum is made up of an electronic fan and a non-return gravitational damper. The fan manages air flow with high available static pressure, regulated by its dip-switches, which are on-off switches placed

directly inside the electronic circuit board of the fan motor, that supply the requested air flow. The fan is already supplied with the set air flow for the application it will be used for.

The recirculation plenum has a frontal panel, fixed to the plenum with appropriate screws, and laterally two rubber grommets

and a metal pipe with a plug. The two rubber grommets are used for passing the power cables to the fan motor. The power supply is 230V/1ph/50 Hz. The pipe is used to keep the spaces between the absolute filters in depression. This can be done by connecting this pipe with

the hole present in one of the eight sides of the main structure of the air ceiling. In this way, if the gasket of the absolute filter leaks, there will be air that in the filtering surface that may bypass the absolute filter. To avoid this trouble, the recirculation fan sucks in the air contained in this space, via this connection.

If this connection is not performed, leave the closure plugs screwed into the plenum. Once the plenum has been placed correctly, fix it to the silencer below, as between the silencer and the return air plenum.

WARNING!

Allow for front accessibility for ordinary maintenance and possible substitution of the fan

from its plenum.

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5.1.4 RECIRCULATION DUCTING

The recirculation ducting connects the outlet of the recirculation plenum with one of the eight sides of the air ceiling galvanized steel plenum.

Its components and their position differ obviously for each project. In a drawing of the operating theatre project, all these

components are shown for their correct installation. Also some fixing collars for the ducting support are included in the supply. Gaskets, caulkings, threaded bars, screws, nuts and all the other components not included in the drawing of the project are

not included in the supply. 5.2 EQUIPMENT BARS

The bars are supplied as an accessory of the unidirectional air ceiling. The choice of the configuration and the position of these bars is completely free and it can be designed for each single project. The maximum available number of bars is 8, which can be made up in the following way:

Empty bar: the bar has no accessories. However this bar incorporates two rails to allow for the movement of wall units and

supports up to 60 kg and it makes the whole structure aesthetically homogeneous, if other equipment bars are included. It is always possible to use this bar later, changing it to an electric or a gas bar, depending on the needs which may arise even after the installation of the whole system.

Electric bar: the bar is equipped with electric plugs, plugs for equipotential connection, circuit breakers or fuses, data

connectors. Every bar can be equipped with a maximum number of accessories, and these accessories and their number must be evaluated every time depending on the project.

Gas bar: the bar is equipped with a base and with the most used medical gas outlets in hospitals throughout the whole of

Europe. The supply concerns all the medical gasses outlets compliant to UNI, AFNOR, DIN and BS Standards, as well as the gas socket for surgical instruments and the AGSS passive socket.

The assembling of the equipment bar to the air ceiling structure is the same for each kind of bar and it must be done before seeing to the connection of the gas sockets and the wiring of the electrical components. Take a beam and put it between two vertical posts. Each beam has a window for the passage of electrical and gas connections on both sides, which coincides with the window placed on the vertical post. For correct assembly, place the beam in a way so that the two windows coincide, and fix the beam on the vertical posts with the 4 screws placed on the sides of each beam.

Bar positioning and fixing between two vertical posts

WARNING!

Always separate electric power cables and gas copper tubes!

Use two different vertical posts, one for the passage of the electric power cables of the

electrical plugs and another one for the copper tubes of the medical gas outlets.


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5.2.1 ELECTRIC BARS

The electric bars are all already completed with the accessories foreseen in the sale. For the accessibility to these components, just unscrew and lift the bar closure external cover. Once the electric bar has been fixed to the main structure, the components can be connected.

Below there is a drawing of a possible electric bar configuration.

Construction drawing of the electric bar and its section

WARNING!

Keep electric power cables and electric signal cables separate!

Use two different vertical posts for the passage of the respective electric supply cables.

5.2.2 GAS BARS

The gas bars are all equipped with base block, terminal unit and an aluminium support to fix them inside the bar. Usually a bar is supplied complete of terminal units as an assembly example, whilst for all the other bars, the gas outlets are included in the supply. The position and the number of the gas outlets must be arranged with the customer whilst ordering.

For the accessibility to these components, just unscrew and lift the bar closure external cover. Once the gas bar has been fixed to the main structure, the components can be connected.

Below there is a drawing of a possible gas bar configuration.

Construction drawing of gas bar and its section

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6 ROUTINE AND MAJOR MAINTENANCE 6.1 MAINTENANCE OF THE LAMINATION TISSUES

The lamination tissues are the final element of the unidirectional filtering ceiling. These allow creating the unidirectional flow once the air passes through them. For this reason the direct exposure with the aseptic nucleus can make the tissues dirty. These tissues are made by a plastic material (polyester), which is resistant to sterilizing agents, so the ordinary maintenance is made of cleaning the tissues with classical systems used in the operating theatre.

The tissue has to be changed if it breaks, if it has tears or any problem which could affect its proper functioning. The

substituting procedure of the tissues is composed of the following operations:

Unscrew the central block (A22); Take out the taps (A23) that cover the longitudinal masks and the perimetrical masks corresponding to the tissues to be

replaced; Unscrew the anchoring screws of the two longitudinal masks (A20) and the perimetrical ones (A21) and take out the masks

paying attention to the glass panels; Unscrew the eight screws with which the tissues is fixed to the filtering gasket; Replace the lamination tissues.

The tissues mounting procedure follows the operations described above in the opposite order.

WARNING!

The unidirectional filtering ceiling cannot work without the lamination tissues!

It is therefore warmly suggested to buy from TECNAIR LV a series of replacement tissues

so to ensure the continuous functioning of the entire system.

6.2 MAINTENANCE OF THE AIR FILTERS

The H14 filters present in the ceiling are not regenerable and therefore must be replaced. It is necessary to place on the new filters a sticker label with the replacement date so to always have an idea of the maximum remaining life of the filter. TECNAIR recommends an ordinary replacement of the absolute filters be performed roughly every two years. Obviously it is up to the competent Authorities for the hospital structure maintenance to decide the maintenance plan and program the absolute filters.

Due to the importance of the absolute filters for the good quality of the entire system, always check that the filters have been

kept in their appropriate casing without being damaged in any way. The procedure to replace the absolute filters is made up of the following operations:

Unscrew the central block (A22); Remove the cover plugs (A23) of all the longitudinal and perimetrical masks; Unscrew the anchoring screws of the longitudinal masks (A20) and the perimetrical ones (A21) and remove the masks paying

attention to the containment glass panels; Unscrew the nuts with which the tissues are fixed to the filter gasket and remove them from their position; Unscrew the nuts and extract the C bars (A18) which fix the filters to the structure; Unscrew the support plaque (A17) and the relative support blocks (A16) and extract the filters with extreme caution.

The mounting procedure of the filters follows in reverse order to the operations described above.

WARNING!

THE FILTERS USED MUST BE DISPOSED OF AS SPECIAL WASTE!

The unidirectional filtering ceiling cannot work without the filters!

It is therefore warmly suggested to buy from TECNAIR LV a series of replacement filters

so to ensure the continuous functioning of the entire system.


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6.3 ANTIDAZZLE LAMP REPLACEMENT

The basic lighting system of the aseptic nucleus is made up of eight antidazzle lamps. The lamp model used is a linear fluorescent 54W/840 230V T5, 1149 mm long. Its estimated life is of approximately 18.000 h.

The procedure to replace the lamp is made up of the following steps:

access the false ceiling in correspondence to the side where the lamp needs to be replaced; unscrew the entire body of the lamp and the lamp holder (A13); unscrew the left hand side anchoring brackets (A14) and the right hand side ones (A15); open the body of the lamp and replace the lamp.

The mounting procedure of the lamp follows the operations described above in the reverse order.

6.4 REPLACEMENT OF THE AIR FLOW STABILIZERS

The flow stabilizers, necessary for the containment of the air flow and achieving the level of air sterility required by the Standards, are in stratified crystal so to guarantee the maximum shatterproof safety without limiting the surgeons' sight.

If there are cracks or breaks of the glass panels it is best to replace it with a new one. The procedure to change the flow

stabilizer is made up of the following operations:

unscrew the screws which anchor a post plate (A31) to the vertical post (A08); remove the post plate; repeat the same operation on the other vertical post which delimitates the containment glass panels (A29); Unscrew the nuts and the metal disks (A28) which anchor the glass panel to the vertical posts; remove the glass panel with extreme caution;

The procedure to mount the glass panel follows the operations described above in the opposite order. We remind you to be

extremely careful during the mounting.

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7 APPENDIX 1: SUMMARY OF THE ASSEMBLING PARTS

We attach the list of the necessary parts for the installation of the Tecnair LV filtering ceiling as well as a schematic summary of the screws, nuts and washers used.


A06 Middle profile 8 A13 Lamp holder 8 A14 Left side anchoring bracket 8 A15 Right side anchoring bracket 8 A18 C bar for filter fixing 8 A19 Central mask 2 A20 Longitudinal mask 8 A21 Perimetrical mask 8 A22 Central block 2 A23 Caps for masks 40 A24 False ceiling plate 8 A25 Post base closure 8 A26 Cover for blind holes 16 A27 Screw cover washer 48 A28 Metal disk with threaded shank 32 A29 Glass containment panel 8 A31 Post plate 8

Finish components


B01 Plenum component 8 B02 Front closing panel 8 B03 Back closing panel 4 B05 Crown gasket 1

Plenum components


C01 Central plaque 1 C02 Intermediate anchoring plaque 1 C03 Central support plaque 1 C04 Spacer tube 4 C11 Reinforce tubes 4 C12 Spacer 4

Anchoring to the ceiling


P01 Central crown 1 P02 External profile 4 P03 Vertical posts with external profile 4

Load-bearing structure


Trapezoidal filter 8 Filter equaliser tissue 8 Threaded bar M20 4 Threaded bar M4 24 Antidazzle lamp 8 Filter assembly tool 2 Adhesive TEROSTAT 935 Henkel 1

Parts included in the supply


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7.1 SUMMARY OF THE SCREWS AND BOLTS

Screw M5X12 UNI 5933


Screw M5X10 UNI 5931 Screw M5X16 UNI 5931 Screw M5X20 UNI 5931


Screw M6X30 UNI 5931 Screw M6X35 UNI 5931 Screw M6X40 UNI 5931



Screw M5X12 ISO 7045

Screw M10X20 UNI 5931 Screw M10X25 UNI 5931

Self-tapping screw 4,2X13

Summary diagram for screws used

Nut M4 UNI 5588 Nut M6 UNI 5588 Nut M8 UNI 5588 Nut M10 UNI 5588 Nut M12 UNI 5588 Nut M20 UNI 5588

Flat washer Ø=4 4,3x9 UNI 6592 Flat washer Ø=6 6,4x12 UNI 6592 Flat washer Ø=8 8,4x16 UNI 6592 Flat washer Ø=10 10,5x20 UNI 6592 Flat washer Ø=20 21x37 UNI 6592

Washer Grower A5 UNI 1751 Grower washer A6 UNI 1751 Grower washer A8 UNI 1751 Grower washer A10 UNI 1751 Grower washer A20 UNI 1751

Summary diagram for nuts and washers used

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8 NOTES


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TPi Klimatimport [email protected]

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Installation and Maintenance Manual Air Ceiling - tpiab. · PDF fileair distribution system with unidirectional flow installation and maintenance manual . ... 1.4 standard dimensions