Combustion gas damper EKO-SRB

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1 Combustion EKO-SRB Description The EKO-SRB combustion is a Class E60 type-approved damper intended to prevent the spread of combustion gases in ventilation ducting that penetrates fire rated compartment wall or floor structures. The damper is designed in accordance with the requirements of the Swedish standard VVS AMA 98, section QJC.1. The damper can also be fitted directly after air treatment units serving more than one fire cell. The EKO- SRB combustion may also be used for direct air transfer in cases where the fire load factor does not exceed 200 Mj/m 2. Type approval The EKO-SRB combustion has been tested by Sveriges Provnings- och Forskningsinstitut (the Swedish National Testing and Research Institute) and type-approved by SITAC (the leading Swedish construction approval agency), certificate no. 1012/ 98. The above-mentioned fire technical classification E60 applies on condition that the combustion gas damper is connected to our EKO-KE control and monitoring system, or equivalent equipment, to provide automatic functional testing at least once every 48 hours. In the case of smaller dampers, up to a maximum of 200 mm diameter, installed in individual archive rooms or similar premises, the automatic functional checking system may be replaced by a manual system, with regular checks performed at least four times per year. Such checks must be logged in a register. In other respects the appropriate conditions must be maintained in accordance with the type approval. Design The EKO-SRB combustion is supplied with either circular spigot or flanged connections and is prepared for external fire insulation. The basic model is equipped with a factory mounted electric damper motor with spring return and end position contacts. Alternative damper motors are available if required, refer to the damper motors section. On installation the damper blades must always be horizontal. The EKO-SRB combustion is manufactured of hot-dip galvanised sheet steel to environmental classification M2. The combustion may also be supplied in alternative materials such as stainless steel 2333 or acid resistant 2343 for increased environmental requirements. Air tightness classification The combustion is equipped with a sealing gasket for the blade. Sealing on the air side is the equivalent of class 4 in accordance with the Swedish standard for air tightness, VVS AMA 98. When the blade pivot axle is located on the air side, the sealing is the equivalent of class 3. The blade is marked on the side that meets the tighter classification. There is also a sealing strip around the damper frame, that expands and seals if the damper is exposed to heat. Working pressure The working pressure of the damper is max Pa, pressure class B, differential pressure with closed blades.

2 Sizes The EKO-SRB combustion is manufactured in a large number of standard dimensions, from Ø 100 to Ø 630 mm. For larger diameters than Ø 630 mm, use the EKO-JB with circular spigot connections. Damper motors The basic EKO-SRB model is supplied with a 24V electric safety motor. As an accessory the damper motor can be equipped with an EKO-TK press button switch for on site manual functional testing. Ventilation systems where the EKO-SRB combustion gas damper is installed must have a smoke detector to provide an alarm and automatically close the damper. A 24V motor is always used in conjunction with the EKO-KE control and monitoring system. Alternatively the combustion can be supplied with a 230V electric motor or with a low or high pressure pneumatic motor as required. Note that the combustion must always be used with the supplied motor for type approval to be valid. Maintenance We recommend preventive maintenance of the damper as required by the plant in which it is installed. The damper blades and interior surfaces are cleaned with a brush, vacuum cleaner or by wiping down. NOTE! Water or other liquids must not be used. Other movement requirements apply, in accordance with the type approval. Accessories EKO-GIS Erection collar for damper mounting in plasterboard walls. Material for making good not included. EKO-KPB Junction box. EKO-RKB Control unit. EKO-RE Smoke detector (duct). EKO-RET Smoke detector (ceiling). EKO-KER Material for making good walls. EKO-KE Control and monitoring system. EKO-TK Press button switch. EKO-MFL Counter flange. EKO-INR Wall frame. How to order the EKO-SRB Designation: Combustion EKO-SRB-A-B-C A B C SIZE MATERIAL MOTOR Duct 1 = Galvanised 5 = 24V electric motor Ø 2 = Aluzinc (M3) 6 = 230V electric motor 3 = Stainless steel SS = Pneumatic motor 4 = Stainless steel SS 2343 Example: 1 Combustion EKO-SRB

3 Dimensions Technical data EKO-SRB OA C B Standard sizes and weights* EKO-SRB ØA B C Weight* Spigot Flanged * Weight in kg, including motor Installation accessories Erection collar EKO-GIS for plasterboard walls Duct diameter

4 Air tightness classification 1000 VVS-AMA98 Classification class Differential pressure, Pa Damper leakage factor l/(s. m 2 ) Pressure drop and sound power level 100 Static pressure drop Pa L WA (db) Air velocity m/s Correction of sound power level L WACORR for different sizes. L WACORR = L WA + K 1 Diameter K Correction of sound power level L WAOC in octave bands. L WAOC = L WACORR + K OC Opening angle Octave band K 2K 4K 8K K OC Sound power level measured in accordance with ISO 3741 and ISO 5135 by Sveriges Provnings- och Forskningsinstitut (the Swedish National Testing and Research Institute).

5 Mounting and insulation instructions Construction (wall or joist) to fire technical classification EI60. Type approval no. 1012/98. * L=EI15 L= L= L=EI15 EKO-SRB Made good with EKO-KER or type-approved fire sealant. Important! These combustion s must always be installed with the pivot shaft horizontal. Fire protection requirements in accordance with the Branch connections to insulated ducting applicable BBR. Branch connections are insulated in accordance with Dampers installed into the last fire cell or for air transmission in ventilation ducts must not be terminated the damper blade for the respective branch dimen- the diagram. The length of insulation is defined from closer than prescribed in the diagram below. sions and radiation level. Ducting must be insulated against the spread of fire in accordance with the following diagram. Insulation lengths are based on test results from Sveriges Provnings- och Forskningsinstitut (the Swedish National Testing and Research Institute). * Ducting is insulated from the fire cell boundary up to and including the damper blade, in accordance with the fire classification of the pierced construction. Against combustible material Against a cavity 2,5 External temperature 160 C (2kW/m 2 ) 2,5 External temperature 207 C (3kW/m 2 ) Length of insulation L (m) 2 1,5 1 EI15 Length of insulation L (m) 2 1,5 1 EI15 0,5 0, Diameter (mm) Diameter (mm)

6 Installation instructions Construction (wall) to fire technical classification EI60. Suspension bracket Erection collar EKO-GIS Self-tapping screw or steel pop rivet Made good with EKO-KER or type-approved fire sealant Ducting insulated in accordance with the figure on previous page. Important! These combustion s must always be installed with the pivot shaft horizontal. To meet EI60, type-approved fire cell separation wall Insulation thickness* construction is required, for example using Gyproc. EI mm 50 mm When passing circular ducting through a plasterboard wall for a combustion, use an *In accordance with the type approval certification for insulation. EKO-GIS wall collar. The combustion is connected to an EKO-KE control and monitoring system. Length of insulation L (m) 1,2 1,0 0,8 0,6 0,4 Air space to combustible material External temperature 375 C (10kW/m 2 ) EI15 Min. Insulation lengths for duct sizes to Diagonal measure Min. insulation length for (m) 100 0, , , , , , , , ,4 0, Diameter (mm)