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Summary of Contents for Vents VKHC 2E 190
- Page 1 USER'S MANUAL VKHC Centrifugal roof fan...
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Page 2: Table Of Contents
VKHC CONTENTS Safety requirements ..................................2 Purpose ........................................ 4 Delivery set ......................................4 Designation key ....................................4 Technical data ....................................5 Mounting and set-up .................................. 8 Connection to power mains ..............................10 Commissioning ....................................14 Technical maintenance ................................15 Storage and transportation regulations .......................... 17 Manufacturer’s warranty ................................ - Page 3 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.
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Page 4: Purpose
VKHC PURPOSE The dual-purpose centrifugal roof fan is used in emergency exhaust ventilation systems for forced removal of smoke, heated gases and combustion products, as well as for general exhaust ventilation in shopping malls, garages, warehouses, and kitchens with the mandatory use of grease filters. -
Page 5: Technical Data
TECHNICAL DATA The unit is rated as a class I electric appliance. Technical data are indicated on the label on the product. www.ventilation-system.com... - Page 6 VKHC OVERALL AND CONNECTING DIMENSIONS [MM] Model Weight [kg] (4 holes) (6 places) VKHC 2E 190 VKHCA 2E 190 VKHC 2E 220 VKHCA 2E 220 VKHC 2E 225 VKHCA 2E 225 VKHC 4E 225 VKHCA 4E 225 VKHC 2E 250 VKHCA 2E 250 М6...
- Page 7 VKHC 4E 355 VKHCA 4E 355 VKHC 4D 355 VKHCA 4D 355 VKHC 4E 400 VKHCA 4E 400 VKHC 6E 400 VKHCA 6E 400 VKHC 4D 400 VKHCA 4D 400 VKHC 4E 450 VKHCA 4E 450 VKHC 6E 450 VKHCA 6E 450 VKHC 4D 450 VKHCA 4D 450 VKHC 6D 450...
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Page 8: Mounting And Set-Up
VKHC MOUNTING AND SET-UP BEFORE MOUNTING MAKE SURE THE CASING DOES NOT CONTAIN ANY FOREIGN OBJECTS (E.G. FOIL, PAPER). WHILE INSTALLING THE UNIT ENSURE CONVENIENT ACCESS FOR SUBSEQUENT MAINTENANCE AND REPAIR. • Fans are designed for horizontal mounting on a flat roof directly above an air duct or a ventilation shaft. •... - Page 9 INSTALLATION EXAMPLES 1 – roof fan; 2 – flexible connector GKV; 3 – backdraft damper KKV; 4 – mating flange FKV; 5 – mounting frame RKV or RKVI; 6 – air duct. www.ventilation-system.com...
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Page 10: Connection To Power Mains
VKHC CONNECTION TO POWER MAINS DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT. CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED ELECTRICIAN WITH A WORK PERMIT FOR THE ELECTRIC UNITS UP TO 1000 V AFTER CAREFUL READING OF THE PRESENT USER’S MANUAL. - Page 11 Power supply parameters and examples of wiring diagrams depending on the unit model Wiring diagram 1: VKHC 2E 190, VKHC 2E 220, VKHC 2E 225, VKHC 4E 225, VKHC 2E 250, VKHC 4E 250, VKHC 4E 280, VKHC 2E 310, VKHC 4E 310, VKHC 4E 355,...
- Page 12 VKHC VKHC 4D 500 5x0,75 VKHC 6D 500 6x0,75 VKHC 4E 450 VKHC 4D 560 VKHC 6E 500/560 VKHC 6D 560 VKHC 4D 560 VKHC 6E 500/560 VKHC 6D 560 5x1,5 VKHC 6D 630 6x1,5 VKHC 6D 710 6x1,5 Power mains parameters and examples of EC fan wiring diagrams depending on the unit model VKHC 190 EC VKHC 225 EC ~230 V...
- Page 13 ASYNCHRONOUS ELECTRIC MOTOR STARTING METHODS There are several methods for starting asynchronous squirrel-cage electric motors. The most common methods are: direct-on-line (DOL), with a soft starter (SS) or with a frequency converter (FC). Direct-on-line starting In case of direct-on-line starting (i.e. by connecting the motor to the electric mains with a simple line contactor), the motor starting time significantly increases due to high inertia of the impeller, which, in turn, results in high in-rush starting currents in the circuit.
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Page 14: Commissioning
VKHC Let us review three variations of a heavy start: 1. The feed line performance is barely sufficient or insufficient to maintain the induced current. Typical symptoms: Upon starting the circuit breakers at the system input are tripped; the lights, certain relays and contactors go off, and the supply generator shuts down. -
Page 15: Technical Maintenance
TECHNICAL MAINTENANCE DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE OPERATIONS! MAKE SURE THE UNIT IS DISCONNECTED FROM POWER MAINS BEFORE REMOVING THE PROTECTION PRIOR TO COMMENCING ANY TECHNICAL MAINTENANCE PUT UP A PROHIBITORY SIGN ON THE FAN STARTING PANEL: “DO NOT SWITCH ON! MEN AT WORK!”... - Page 16 VKHC TROUBLESHOOTING Problem Possible reasons Elimination The fan will not start. No power supply. Check the mains switch. Check the electrical connections according to the wiring diagram. Jammed motor. Carefully check the fan impeller for possible seizure and eliminate it, if necessary. If the impeller is in order, replace the electric motor.
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Page 17: Storage And Transportation Regulations
The fan supplies less air than Wrong calculation of the ventilation network and Re-calculate the network parameters and select a expected. wrong selection of the fan. matching fan. The network resistance exceeds the design Re-arrange the ventilation network to decrease its calculations. -
Page 18: Manufacturer's Warranty
VKHC MANUFACTURER’S WARRANTY The product is in compliance with EU norms and standards on low voltage guidelines and electromagnetic compatibility. We hereby declare that the product complies with the provisions of Electromagnetic Compatibility (EMC) Directive 2014/30/EU of the European Parliament and of the Council, Low Voltage Directive (LVD) 2014/35/EU of the European Parliament and of the Council and CE-marking Council Directive 93/68/EEC. -
Page 19: Certificate Of Acceptance
CERTIFICATE OF ACCEPTANCE Unit Type Centrifugal roof fan Model Serial Number Manufacture Date Quality Inspector’s Stamp SELLER INFORMATION Seller Address Phone Number E-mail Purchase Date This is to certify acceptance of the complete unit delivery with the user’s manual. The warranty terms are acknowledged and accepted. - Page 20 V204-2EN-02...
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