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SAFETY REQUIREMENTS 

All user’s manual requirements as well as the provisions of all the applicable local and national 
construction, electrical, and technical norms and standards must be observed when installing 
and operating the unit.
Disconnect the unit from the power supply prior to any connection, servicing, maintenance, and 
repair operations. 

Only  qualified electricians with a work permit for electrical units up to 1000 V are 

allowed for installation. The present user’s manual should be carefully read before 

beginning works.

Check the unit for any visible damage of the impeller, the casing, and the grille before starting 
installation. The casing internals must be free of any foreign objects that can damage the 
impeller blades. 
While mounting the unit, avoid compression of the casing! Deformation of the casing may result 
in motor jam and excessive noise.
Misuse of the unit and any unauthorised modifications are not allowed.
Transported air must not contain any dust or other solid impurities, sticky substances, or fibrous 
materials.
Do not use the unit in a hazardous or explosive environment containing spirits, gasoline, 
insecticides, etc.
Do not close or block the intake or extract vents in order to ensure the efficient air flow.
Do not sit on the unit and do not put objects on it.
The information in this user’s manual was correct at the time of the document’s preparation. 
The Company reserves the right to modify the technical characteristics, design, or configuration 
of its products at any time in order to incorporate the latest technological developments.
Never touch the unit with wet or damp hands.
Never touch the unit when barefoot.

Summary of Contents for VKV EC

Page 1: ...USER S MANUAL VKV EC VKH EC Centrifugal roof fan...

Page 2: ...cal training in the field of ventilation systems and should be able to work in accordance with workplace safety rules as well as construction norms and standards applicable in the territory of the cou...

Page 3: ...age the impeller blades While mounting the unit avoid compression of the casing Deformation of the casing may result in motor jam and excessive noise Misuse of the unit and any unauthorised modificati...

Page 4: ...the fixed wiring system in accordance with the wiring rules for design of electrical units and has a contact separation in all poles that allows for full disconnection under overvoltage category III c...

Page 5: ...f fans in metal casing are designed for ventilation systems in industrial premises as well as pools apartment buildings offices hospitals restaurants and other premises heated during the winter season...

Page 6: ...M6 263 270 451 450 330 16 VKH 355 EC 438 11 M8 322 361 625 620 450 27 VKH 400 EC 438 11 M8 384 422 625 620 450 27 VKH 450 EC 438 11 M8 420 459 710 700 535 46 VKH 500 EC 445 11 M8 467 506 710 700 535...

Page 7: ...gress of water and snow into the ventilation duct it is possible to install a fan on the mounting frame The fan is connected to the ventilation duct by means of a counter flange which is attached dire...

Page 8: ...ifications section according to the wiring diagram The unit must be connected to power mains using insulated electric conductors cables wires The actual wire cross section selection must be based on t...

Page 9: ...T GND Tacho A QF 1 L1 2 L2 3 L3 4 1 2 3 4 X1 X2 ND T acho 10 0 V CRT GND Tacho A QF 0 10V 400 V 50 60 Hz 1 L1 2 L2 3 L3 4 1 X1 X2 PE L3 L2 L1 10V 10V A QF 1 L1 2 L2 3 L3 4 1 X1 X2 PE L3 L2 L1 10V 10V...

Page 10: ...se a soft dry cloth brush or compressed air to remove dust Carry out wet cleaning using warm water and a mild household detergent Protect the electric motor against liquid ingress Do not immerse the u...

Page 11: ...11 www ventilation system com VKV 190 EC VKV 225 EC VKV 250 EC VKV 280 EC VKV 310 EC VKV 355 EC with a hinged cover and a motor...

Page 12: ...humidity up to 70 Storage environment must not contain aggressive vapors and chemical mixtures provoking corrosion insulation and sealing deformation Use suitable hoist machinery for handling and stor...

Page 13: ...ler for warranty service The manufacturer s warranty does not apply to the following cases User s failure to submit the unit with the entire delivery package as stated in the user s manual including s...

Page 14: ...IFICATE The VK__ EC__________________________________ unit is installed pursuant to the requirements stated in the present user s manual Installation Stamp Company name Address Phone Number Installati...

Page 15: ...15 www ventilation system com...

Page 16: ...V204 1EN 02...

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