Vents D Series User manual

www.ventilation-system.com
D
D1
AXIAL FAN
User’s manual
EN

2
EN
CONTENTS
Delivery set............................................................................................................................................................................................................................................. 7
Brief description .................................................................................................................................................................................................................................. 7
Operation guidelines ....................................................................................................................................................................................................................... 7
Designation key................................................................................................................................................................................................................................... 8
Mounting................................................................................................................................................................................................................................................. 9
Electronic system operation algorithm................................................................................................................................................................................ 11
Technical maintenance................................................................................................................................................................................................................... 12
Troubleshooting.................................................................................................................................................................................................................................. 12
Storage and transportation regulations............................................................................................................................................................................... 13
Manufacturer’s warranty................................................................................................................................................................................................................ 14
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 D/D1
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
EN
PLEASE READ THE USER’S MANUAL CAREFULLY PRIOR TO INSTALLING, CONNECTION TO POWER
MAINS AND OPERATING THE UNIT.
THE MANUFACTURING COMPANY SHALL NOT BE RESPONSIBLE FOR DAMAGE TO HEALTH AND
PROPERTY OF THE CUSTOMER CAUSED BY THE CUSTOMER’S VIOLATING THE USER’S MANUAL.
FOLLOW THE USER’S MANUAL REQUIREMENTS TO ENSURE DURABLE OPERATION OF THE UNIT, ITS
MECHANICAL AND ELECTRICAL RELIABILITY.
KEEP THIS USER’S MANUAL.
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 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!

4
EN
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.

5
EN
Never touch the unit with wet or damp hands.
Never touch the unit when barefoot.
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.
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.
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.

6
EN
THE PRODUCT MUST BE DISPOSED SEPARATELY AT THE END OF ITS SERVICE LIFE.
DO NOT DISPOSE THE UNIT AS UNSORTED DOMESTIC WASTE.
Ensure that the unit is switched off from the supply mains before
removing the guard.

7
EN
BRIEF DESCRIPTION
The unit described herein is an axial fan for exhaust ventilation of small and medium-sized utility spaces.
The fan is designed for connection to Ø 100, 120, 125 and 150 mm air ducts, depending on the model.
OPERATION GUIDELINES
The fan is rated for connection to single-phase AC power mains.
Power mains parameters are stated on the unit packaging and/or the label on the unit casing.
Hazardous parts access and water ingress protection rating: IP34
WARNING! IP is indicated for an assembled unit.
The fan is rated for operation at the ambient temperature ranging from +1 °C up to +40 °C.
WARNING! Do not operate the fan outside the specied temperature range.
The unit is rated as the Class II 120 V, 60 Hz.
DELIVERY SET
Fan — 1 pc.
Screws and dowels — 4 pcs.
Plastic screwdriver (only for the models with a timer) — 1 pc.
User’s manual — 1 pc.
Packing box — 1 pc.

8
EN
DESIGNATION KEY
100 D V K L
Motor modications:
_: basic motor
L: motor on ball bearings
Turbo: high-powered motor
Modications:
K: non-return valve KO
K1: non-return valve KO1
Basic options:
V: pull cord switch
T: turn-off delay timer
VT: turn-off delay timer and pull cord switch
TH: humidity sensor
VTH: pull cord switch and humidity sensor
Fan series
D/D1
Outlet duct diameter [mm]
100/120/125/150

9
EN
MOUNTING
The fan is designed for wall (with the motors on ball and slide bearings) or ceiling (with the motors on ball bearings only, L
option) mounting and can be used for direct outdoor air exhaust through a round duct or a duct system.
In case of installation through a duct system, select the duct cross section in accordance with the fan size (Fig. 1).
1. When installing the fan with direct air discharge outside through the wall, be sure to install a ventilation grille with louvre
shutters or a ventilation hood on the outside to prevent rainfall, snow, leaves, branches, etc. from entering the duct.
To reduce the risk of condensate forming in the duct, the space between the hole in the wall and the duct must be insulated.
Install the air duct with the minimum slope of 1...2° downwards to the outer wall side for condensate removal (Fig 2).
2. The duct system should not exceed 5 meters and have more than two bends.
3. During ceiling installation, vertical air discharge upwards is not allowed even if there is a protective outer hood on the roof.
For ceiling mounting and air discharge to the roof, the duct system must include a condensate drain (Fig. 3).
A condensate drain is not included in the delivery set of the fan and can be ordered separately.
Check the fan for any visible damages of the impeller, the casing and the grille before starting installation. The casing internals
must be free of any foreign objects which can damage the impeller blades.
While mounting the unit, avoid compression of the casing!
Deformation of the casing may result in the motor jam and excessive noise.
Mount the fan on the wall or ceiling using four dowels with screws (included in the delivery set).
Dowels and screws are designed for concrete and brick walls.
If the walls are made of the other material (drywall, wood,etc.), use the fasteners appropriate for these materials to fasten the
fan (not supplied with the fan and must be purchased separately).
WARNING! When the fan is equipped with a non-return valve, operation of the fan without this valve is prohibited.

10
EN
The fan mounting sequence is shown in Fig. 4-11.
The fan wiring diagrams are shown in Fig. 12-14.
Terminal designations on the wiring diagrams
L: line S: external switch
N: neutral QF: double pole circuit breaker
LT: timer control line
WARNING! The power cable may only be laid through the hole in the casing provided by the manufacturer.
Laying the power cable through a manually drilled hole will not be the liability of the manufacturer and will void
the warranty. The wires must be stripped of insulation by a maximum of 8 mm.
After installation, pass this User’s manual to the end user for reading.
1
2
2250
2250
750
750
600
600
R 600
1
2
3
1
1
3
3
22
2
2
1
2
2
The unit with a protection rating against access to hazardous
parts and water ingress IP34 is allowed to be installed in zone
2, according to IEC 60364-7-701:2019.
min. 2.3 m
CAUTION! The unit must be installed at a distance of
at least 2.3 m from the oor.