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mcr S-THERM smoke exhaust vents: C, E, NG-A. OPERATION AND MAINTENANCE MANUAL

Page 8 of 41

In case of installation of the mcr S-THERM vent on the roof, the base should be placed
in such a way that the vent hinge is located in the lower point - in accordance with the pitch.

Fig. 6 Mounting of the vent on the roof according to the pitch direction.

The side where the hinge will be located has 4 factory-installed installed reinforcements:

Fig. 7 The so-called "hinge" side of the base.

Roof pitch

Roof pitch

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Summary of Contents for mcr S-THERM C

Page 1: ...Doc no HO 20 01324_en rev B of 31 03 2021 OPERATION AND MAINTENANCE MANUAL Spot smoke exhaust vents mcr S THERM type C E NG A ...

Page 2: ...unting of the leaf glazing 22 6 WIND DEFLECTORS AND INLET DEFLECTORS 24 6 1 Wind deflectors 24 6 2 Inlet deflector 26 7 FLAP LEAF ADJUSTMENT 27 8 CONTROL 28 8 1 Pneumatic control 28 8 2 Electric control 30 8 3 Ventilation function 30 8 4 Mechanic control 32 8 4 1 Methods of opening the lock 32 8 4 2 Preparing the lock for operation 33 8 4 3 Lock adjustment 36 9 INITIAL START UP 37 10 SERVICING AND...

Page 3: ...ents are automatic smoke exhaust devices The basic function of mcr S THERM smoke exhaust vents is to vent smoke fire gases and heat energy to the outside from enclosed spaces production buildings warehouses public buildings etc contributing to the protection of life and property by maintaining evacuation routes in minor smoking condition facilitating firefighting and fire extinguishing by the crea...

Page 4: ...m Fig 1Design of mcr S THERM smoke exhaust vent The types of openable leaf glazing used are multi chamber polycarbonate in thicknesses from 10 to 25 mm with varying degrees of transparency and with different heat transfer coefficient values multi chamber polycarbonate of thickness of 10 to 25 mm single acrylic dome multi chamber polycarbonate of thickness of 10 to 25 mm single polycarbonate dome A...

Page 5: ...verse 2 actuator holder 3 smoke exhaust actuator 4 ventilation actuator optional 5 hook console 6 base 7 base reinforcement on the hinge side 8 base flange 9 hinge c with mechanical control base type C E shown on the figure 1 leaf traverse 2 oleopneumatic actuator 3 actuator traverse 4 lock 5 actuator lever 6 base 7 base reinforcement on the hinge side 8 base flange 9 hinge Fig 2 Cross section of ...

Page 6: ...e delivered in parts however in special cases they can be delivered as completely assembled The wind deflectors are always supplied separately This is due to the need to protect them from damage during transport and ensure safety on the road Unloading should be carried out under the supervision of a person authorised by the manufacturer using generally available handling equipment or manually obse...

Page 7: ... polycarbonate panels Damage to the film protecting the edges of the polycarbonate plates will cause penetration of dirt into the PCA chambers which voids the warranty 3 Mounting of the equipment must be carried out in compliance with all the necessary safety rules in particular relating to work at height or using appropriate personal protective equipment 5 1 Assembling the steel base The base of ...

Page 8: ...f the base should be placed in such a way that the vent hinge is located in the lower point in accordance with the pitch Fig 6 Mounting of the vent on the roof according to the pitch direction The side where the hinge will be located has 4 factory installed installed reinforcements Fig 7 The so called hinge side of the base Roof pitch Roof pitch ...

Page 9: ...t acting as a lock the bottom fastener optional element and rivets Fig 8Joining the sides of the base at the corner After assembling the complete base and covering it with insulation bend the brackets that secure the insulation against displacement e g with a screwdriver Fig 9 Securing the insulation of the sides hammer down advance side bend bend bend punch rivet rivet ...

Page 10: ... with steel concrete or wooden structure The base of the device has a flange in its lower part for supporting and attaching the vent to the supporting structure The fasteners should be selected depending on the material of the substructure according to the table below The fasteners should be installed in pre drilled holes in the lower flange The maximum spacing is 50 55 cm Type of supporting struc...

Page 11: ...detail B and the method of rolling up the roofing felt or membrane detail A detail A 1 Steel base 2 Thermal insulation of the base 3 Aluminium frameframe 4 Roofing membrane 5 Traverse of the opening system 6 Leaf gasket 7 Support frame 8 Pressing frame 9 Leaf glazing Fig 13 Method of rolling up the roofing membrane onto the base detail A 1 4 3 5 6 7 8 9 2 Detail A Detail B ...

Page 12: ... slab 1 Steel base 2 Thermal insulation of the base 3 Aluminium frameframe 4 Roofing paper 5 Traverse of the opening system 6 Leaf gasket 7 Support frame 8 Pressing frame 9 Leaf glazing 10 Pressing skirting board recommended item Fig 14 Method of rolling up the roofing felt on the base drip detail A detail B Fig 15 Steel base on a reinforced concrete slab a membrane flashing b roofing felt flashin...

Page 13: ...on of the base 3 Membrane or roofing felt flashing 4 Roof thermal insulation 5 Trapezoidal sheet 6 Load bearing steel structure 1 Steel base of vent 2 Thermal insulation of the base 3 Membrane or roofing paper 4 Roof thermal insulation 5 Load bearing steel structure 6 Trapezoidal sheet Fig 16 Steel base on steel structure a membrane flashing b felt flashing Fig 17 Steel base on steel structure a m...

Page 14: ...of the vent is installed on the roof e g in connection with dividing the works into stages it is obligatory to take care of safety considerations and protect its entire clear opening with a set of nets mounted on the base through appropriate consoles NOTE never leave bases with unprotected clear opening on the roof The correct protection of the full length of the base consists of 1 Standard nets f...

Page 15: ...g a single self drilling screw 6 3x19 Fig 21 Standard net consoles attached to one of the B sides of the base The next step is to place a safety net over the consoles and then close the consoles and attach it to the base using the rest of the available mounting holes 5 pcs Fig 22 Mounting the standard net on the consoles Fig 23 Folding base with standard nets mounted not fully secured Once the bas...

Page 16: ...hen apply the temporary net to the temporary consoles close the temporary net consoles and attach each console to the standard console with two more 6 3x19 self drilling screws Fig 25 Mounting the temporary net on the consoles Fig 26 Folding base fully protected with standard nets and a temporary net NOTE Before mounting the opening system remove the temporary net and temporary consoles by followi...

Page 17: ...ectly positioned on base view without roofing paper membrane on hinged side Before screwing the frameframe to the base pay particular attention to its correct position Especially on the hinge side theframe frame must not enter the clear opening of the vent Fig 28 Example of correct left and incorrect right placement of the frameframeon the base The frameframe should be screwed to the base using 4 ...

Page 18: ...ing the frameframer pay special attention to the correct setting of your power screwdriver parameters Fig 29 Mounting the frame to the base and correct installation parameters NOTE Only a properly tightened washer guarantees a tight connection Fig 30 Examples of an incorrectly and correctly tightened screw ...

Page 19: ...mporary consoles must be removed in reverse order to the steps described on page 16 The opening system must be placed in the axis of the smoke exhaust vent Fig 31 Mounting the opening system in the vent axis After placing the opening system on the frame fix it to the base with self drilling screws 6 3x32 Fig 32 Fastening the opening system traverse to the vent base Hinge axis Vent axis Axis of the...

Page 20: ...ing care that the hinge elements are correctly positioned The correct position of the hinge elements in relation to each other is shown in the figure below Fig 33 Correct left and incorrect right positioning of the hinge profiles Before mounting the insert apply grease e g so called white grease on the hinge elements which will significantly facilitate the assembly process and ensure trouble free ...

Page 21: ...assembly can be facilitated by gently squeezing both parts of the hinge using for example a carpenter clamp grip with plastic tips Fig 35 Squeezing the two parts of the hinge facilitates application of the insert The following illustrations show the subsequent stages of installation a b c d Fig 36 Individual steps for mounting the hinge fastener NOTE The insert must be flush with the leaf hinge pr...

Page 22: ...n such case the domes should be fitted to the vent leaf on site preferably after the vent has been assembled as follows 1 remove the pressing frame unscrew sheet metal screws 5 5x32 with EPDM washers 2 check the condition of the PES gasket on the support frame clean it of dust 3 separate the polycarbonate sheet from the dome with the supplied PES gasket glue around the perimeter see figure below 4...

Page 23: ...TION AND MAINTENANCE MANUAL Page 23 of 41 Fig 38 Flap leaf cross section PES gasket between glazing and on the leaf supporting frame Sheet metal screw 5 5x32 with EPDM washer Pressing frame Multi chamber polycarbonate Support frame Dome PES gasket ...

Page 24: ...allation b Wind deflectors and mounting brackets are to be connected only with Ø4 8x10 mm alu steel rivets with enlarged heads for a wide range of joining thicknesses 3 0 6 0 mm The only permissible alternative is a set comprising M5 bolt Lmin 30 DIN933 2x washers Ø5 3 15 e g DIN9021 self locking nut M5 DIN985 The brackets to which the wind deflectors are to be mounted are attached to the frame at...

Page 25: ...om inside the vent For ease of installation the following identification symbols have been applied to the individual wind deflectors L on the left wind deflector and P on the right wind deflector The wind deflector can be identified by looking at the front of the vent facing the side where there are no hinges Fig 42 Wind deflectors mounted on the vent view from the front The markings are located i...

Page 26: ...sing a set comprising metric screw M6x12 DIN 967 self locking nut M6 DIN 985 The inlet deflector can be pre mounted in the vent in the transport position Then after installing the vent the inlet deflector must be fixed in the operating position loosen the screws in the mounting brackets on side A of the inlet deflector in place of the prepared Ø6 5 mm holes unscrew the screws in the mounting brack...

Page 27: ...by an eyebolt that is screwed into the piston rod spindle of the actuator The play in the vent leaf can be adjusted by screwing in an eyebolt or adjusting a T bolt The eyebolt or T bolt should be secured against loosening by a counter nut When using an additional 230 V electric actuator for ventilation in a system with pneumatic actuator the T screw is screwed into the toothed bar or spindle of th...

Page 28: ...af has to be closed immediately disconnect the immobilised actuator from the leaf e g by removing the eyebolt from the hook console or removing the eyebolt from the actuator or disconnecting actuator E from the mounting console then close the leaf and secure it against opening 8 1 Pneumatic control Depending on the system configuration additional pneumatic tubing may need to be connected to the ve...

Page 29: ...g the thermal fuse check if pin spring tensioning screw 1 is unscrewed if not it should be unscrewed by hand till the stop install the alcohol ampoule 2 in the seat of the gas regulator with the pointed end towards the body tighten the clamping screw of the ampoule by hand slide in the valve slide 4 tighten the pin spring with the screw 1 as far as it will go manually check that the cartridge pin ...

Page 30: ... consists in hanging the catch plates of the traverse on the frame and connecting them with a set of self drilling screws to the base The coupling of the actuator to the leaf consists of connecting the eyebolt of the electric actuator to the pin of the hook console and adjusting it appropriately so that the console snaps securely onto the T bolt while at the same time the electric actuator is turn...

Page 31: ...r rain for the purpose of protecting property and the vents structure from damage Wiring diagram for ventilation electric actuator 230 VAC a The E4 xxx 230 V actuator has two circuits service movement direction control black brown blue wires signal wires 2 x white actuator opening signal voltage free contact Fig 55 Ventilation control actuator type E4 xxx 230 Fig 56 Bushing LB 18 2 SL13 2xM5x16 Fi...

Page 32: ...et lock Fig 62 Types of locks for mechanic controls The standard and electromagnetic locks can be easily distinguished by the presence for electromagnetic lock or absence for standard lock of housing On the other hand the type of lock with an electromagnet can be determined by the power of the electromagnet 1 Power 3 5 W electromagnet releasing in response to electric impulse current flow 2 Power ...

Page 33: ...pening the lock 8 4 2 Preparing the lock for operation The vent is delivered to the customer with the lock secured with a tie strap applies only to locks equipped with an electromagnet See Fig 65 for the method and location of protection 1 Self drilling screw 2 Lock position adjustment screws Fig 64 Lock secured with tie strap 1 2 2 3 1 ...

Page 34: ...repared for operation Observe the following points 1 After connecting the electromagnet to the power wires arrange them in such a way that there is no collision of these wires with moving parts of the lock the full range of movement of the mechanisms must be taken into account 2 For electromagnets triggered by power failure first turn the power on and only then close the jumper the method of closi...

Page 35: ...A OPERATION AND MAINTENANCE MANUAL Page 35 of 41 1 Electromagnetic jumper Fig 66 Closing the lock jumper a Lock nut open b Lock nut closed 2 Lock nut 3 Closed catch 4 Lock lever in closed position Fig 67Lock before and after closing 1 2 3 4 ...

Page 36: ...cure the lock against unintentional movement by means of the self drilling counter screw item 1 on Fig 65 Another option to adjust the lock is to adjust the electromagnet jumper mounting When the jumper is closed it should touch the electromagnet with its entire surface If the situation as shown in Fig 69 occurs when the jumper does not close completely it should be adjusted so that the electromag...

Page 37: ...P Regardless of the opening system used it is imperative to 1 Measure the time to open the vent leaf to the smoke exhaust position The correct leaf opening time should be up to 60 s 2 Measure the opening angle of the vent leaf to the smoke position The correct opening angle for smoke exhaust should be at least 140 3 Verify the presence of the product nameplate at the location shown in Fig 70 If th...

Page 38: ... Periodically clean the dome polycarbonate panel surfaces use a sponge or soft cloth and lukewarm water with mild household cleaners The panels must not be scrubbed with brushes or sharp objects Abrasives strong alkalis solvents etc must not be used In case of doubt test the agent on a sample or small area Due to natural processes in the atmosphere condensation may occur in the chambers of polycar...

Page 39: ...COR is responsible for in particular acts of God such as torrential rainfall flood hurricane flooding stroke of thunder overvoltage in the mains explosion hail fall of aircraft fire avalanche landslide and secondary damages due to the above listed causes Torrential rain is defined as rain with an efficiency index of at least 4 or 5 in Chomicz scale or torrential rain grade IV A4 Should it be impos...

Page 40: ...PECTIONS 1 Devices should be subject to periodical servicing inspections every 6 months during the entire period of their operation 2 The servicing inspections should be performed by companies having adequate authorization of MERCOR SA 3 On issues related to service please contact a local representative of MERCOR S A Other conditions 1 As regards matters not regulated by these Warranty terms and c...

Page 41: ...mcr S THERM smoke exhaust vents C E NG A OPERATION AND MAINTENANCE MANUAL Page 41 of 41 12 CERTIFICATE OF CONSTANCY OF PERFORMANCE ...

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