Vents VK VMS User manual

VK VMS
Multi-zone centrifugal fan
USER'S MANUAL

2
VK VMS
www.ventilation-system.com
CONTENTS
Safety requirements..................................................................................................................................................................... 3
Purpose................................................................................................................................................................................................ 5
Delivery set........................................................................................................................................................................................ 5
Designation key.............................................................................................................................................................................. 5
Technical data.................................................................................................................................................................................. 6
Design and operating principle ........................................................................................................................................... 7
Mounting and set-up.................................................................................................................................................................. 7
Connection to power mains .................................................................................................................................................. 9
Technical maintenance.............................................................................................................................................................. 10
Storage and transportation regulations.......................................................................................................................... 10
Manufacturer’s warranty........................................................................................................................................................... 11
Certificate of acceptance.......................................................................................................................................................... 12
Seller information.......................................................................................................................................................................... 12
Installation certificate.................................................................................................................................................................. 12
Warranty card................................................................................................................................................................................... 12
This user’s manual is a main operating document intended for technical, maintenance, and operating staff.
The manual contains information about purpose, technical details, operating principle, design, and installation of the VK VMS unit and all
its modifications.
Technical and maintenance staff must have theoretical and practical 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 country.

3
www.ventilation-system.com
SAFETY REQUIREMENTS
This unit is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the unit by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the unit.
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand
the hazards involved.
Cleaning and user maintenance shall not be made by children without supervision.
Children shall not play with the appliance.
Connection to the mains must be made through a disconnecting device, which is integrated
into 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 conditions.
CAUTION: In order to avoid a safety hazard due to inadvertent resetting of the thermal cut-
out, this unit must not be supplied through an external switching device, such as a timer, or
connected to a circuit that is regularly switched on and off by the utility.
Ensure that the unit is switched off from the supply mains before removing the guard.
WARNING: If there are any unusual oscillating movements, immediately stop using the unit and
contact the manufacturer, its service agent or suitably qualified persons.
The replacement of parts of the safety suspension system device shall be performed by the
manufacturer, its service agent or suitably qualified persons.
Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
gas or other fuel-burning appliances.
Do not attach the product to the support using glue or adhesives. Use only the fastening
method specified in the «User’s manual».
All operations described in this manual must be performed by qualified personnel only, properly
trained and qualified to install, make electrical connections and maintain ventilation units.
Do not attempt to install the product, connect it to the mains, or perform maintenance yourself.
This is unsafe and impossible without special knowledge.
Disconnect the power supply prior to any operations with the unit.
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 qualied 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
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or
similarly qualified persons in order to avoid a safety hazard.

4
VK VMS
www.ventilation-system.com
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE
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.
Do not expose the unit to adverse atmospheric agents (rain, sun, etc.).
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.
BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES, READ THE RELEVANT USER MANUALS.

5
www.ventilation-system.com
DELIVERY SET
DESIGNATION KEY
PURPOSE
The unit is designed for simultaneous air extraction from up to 5 rooms.
It is used in residential and small commercial exhaust ventilation systems.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, sticky substances, fibrous materials,
coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances, dust,
pathogenic germs).
Name Number
Fan 1 pc.
Screws with dowels 4 pcs.
Mounting bracket 2 pcs.
User’s manual 1 pc.
Packing box 1 pc.
VK VMS 125 R
Additional options
Cord with a mains plug
Air duct diameter [mm]
125
Unit series
Multi-zone centrifugal fan

6
VK VMS
www.ventilation-system.com
TECHNICAL DATA
The fan is designed for indoor application with the ambient temperature ranging from +1 °C up to +45 °C and relative humidity up to
80 %. Ingress protection rating against access to hazardous parts and water ingress is IPХ4.
The unit is rated as a class II electric appliance.
The unit design is constantly being improved, thus some models may be slightly different from those described in this manual.
Overall dimensions of the unit
D
D1
D2
L
Model
Dimensions [mm] Weight
[kg]
DD1 D2 H L
VK VMS 125 125 124 79 281 317 2.99

7
www.ventilation-system.com
DESIGN AND OPERATING PRINCIPLE
The fan is equipped with a single-phase external rotor motor with a centrifugal impeller. The unit has 4 suction spigots ø 80 mm and 1
suction spigot ø 125 mm.
The fan can be fitted with a power cord with a plug (VK VMS...R).
The speed is controlled by means of a thyristor or autotransformer controller (both available upon separate order).
The fan is rated for continuous operation.
1
2
3
4
5
MOUNTING AND SETUP
The fan is suitable both for horizontal or vertical mounting on the floor, on the wall or on the ceiling.
Air motion in the system must be in compliance with the direction of the arrow on the fan casing.
Install a hood on the intake spigot side in case of vertical fan installation.
When installing the fan horizontally, provide a straight air duct section at least 1 m long on the intake spigot side.
1. Casing
2. Motor
3. Impeller
4. Mounting bracket
5. Terminal box
READ THE USER'S MANUAL BEFORE INSTALLING THE UNIT.
BEFORE INSTALLING ADDITIONAL EXTERNAL DEVICES,
READ THE RELEVANT USER MANUALS.

8
VK VMS
www.ventilation-system.com
1 2
34
5
Mounting sequence
1. Remove the bolts on both sides of the casing, install the mounting brackets and tighten the bolts, aligning the holes in the brackets
with the holes in the casing.
2. Mark the drilling holes.
3. Drill the holes in the wall or the ceiling for dowels.
4. Fix the fan with the screws.
5. Connect the air ducts of the corresponding diameter to the fan.

9
www.ventilation-system.com
CONNECTION TO POWER MAINS
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
X
N
L
N
L
QF QF
N
L
N
L
X
S
WIRING DIAGRAM
• The unit is rated for connection to power mains with the parameters specified in the "Technical data”section, according to the wiring
diagram.
• The connection must be made using durable, insulated and heat-resistant conductors (cables, wires).
• The actual wire cross section selection must be based on the maximum load current, maximum conductor temperature depending
on the wire type, insulation, length and installation method.
• The external power input must be equipped with an automatic circuit breaker QF built into the stationary wiring to open the circuit in
the event of overload or short-circuit. The position of the external circuit breaker must ensure free access for quick unit power-off. The
trip current of the automatic circuit breaker must exceed the maximum current consumption of the unit (refer to the “Technical data”
section or to the unit label). It is recommended to select the nominal current of the circuit breaker from the standard series, following
the maximum current of the connected unit. The circuit breaker is not included in the delivery set and can be ordered separately.
Diagram 1.
Connection of the fan to power mains
Diagram 2.
Connection of the fan to power mains with an
external switch

10
VK VMS
www.ventilation-system.com
STORAGE AND TRANSPORTATION REGULATIONS
• Store the unit in the manufacturer’s original packaging box in a dry closed ventilated premise with temperature range
from +5 °C to + 40 °C and relative 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 storage operations to prevent possible damage to the unit.
• Follow the handling requirements applicable for the particular type of cargo.
• The unit can be carried in the original packaging by any mode of transport provided proper protection against precipitation and
mechanical damage. The unit must be transported only in the working position.
• Avoid sharp blows, scratches, or rough handling during loading and unloading.
• Prior to the initial power-up after transportation at low temperatures, allow the unit to warm up at operating temperature for at least
3-4 hours.
DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY MAINTENANCE
OPERATIONS!
MAKE SURE THE UNIT IS DISCONNECTED FROM POWER MAINS BEFORE REMOVING THE
PROTECTION.
TECHNICAL MAINTENANCE
Clean the product surfaces regularly (once in 6 months) from dust and dirt. To clean the fan, remove the self-tapping screws and
remove the fan cover. To clean the fan, use a soft cloth or a brush wetted in a mild detergent solution.
Do not allow water or liquid come into contact with electric components. Wipe the unit surfaces dry after cleaning.
Install the cover back in place and screw the self-tapping screws.