VENTS 125 VKOk

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Maximum capacity - 185 m³/h.

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Description
Characteristics
Downloads
Modifications
Dimensions
Wiring plan
Legend
Example of installation
BIM

Description

APPLICATIONS
Continuous or periodic exhaust ventilation of bathroom, showers, kitchens and other utility spaces. Exhaust or supply ventilation depending on the fan mounting type in the system.	Designed for PVC ducting systems or flexible ducts. Low to medium air flow motion for short distances at low air resistance. Compatible with Ø 100, 125 and 150 mm air ducts.
DESIGN
The casing and the impeller are made of high-quality durable ABS plastic, UV resistant.	The intellectual impeller design makes the fan efficiency high and the service life long. Protection rating IP X4.
MOTOR
Reliable and low-watt electric motor. Designed for continuous operation and requires no maintenance.	Equipped with overheating protection.
CONTROL
Manual:	Automatic:
The fan is controlled by a room light switch. It is not included in the delivery package. Speed control is possible through a thyristor speed controller (see Electrical Accessories). Several fans may connected to the same controller. Speed controllers can not be connected to the fans with T, TH, TP, VT, VTH modification.	By the electronic control unit BU-1-60 (see Electrical Accessories). The control unit is supplied separately.
MOUNTING FEATURES
The fan is mounted into a matching duct size. Fastening with clamps in case of flexible duct connection. This series fans have different inlet and exhaust flange diameters to enable attachment of the decorative grille MV to the appropriate intake flange diameter in case of direct installation into the ventilation shaft or instead of the existing ventilation grille.	The fan can be mounted on a horizontal or vertical flat surface by a fixing bracket (VKOk model). Two fans can be installed in series for higher performance. For 12 V low-voltage motor fan connection to 220 V / 50 Hz power mains use the step-down transformer TRF 220/12-25 that is available upon separate order.


		VENTS VKO fan flat ventilation example		VENTS VKOk fan cottage ventilation example

Characteristics

Parameter	VENTS 125 VKOk	VENTS 125 VKOk L	Measurement unit
Voltage	220-240	220-240	V
Frequency	50/60	50/60	Hz
Power consumption	16	16	W
Air capacity	185	185	m³/h
Current	0.1	0.1	A
RPM	2400	2400	min^-1
Sound pressure level at 3 m	38	38	dBА
Weight	0.48	0.48	kg
Spigot size	125	125	mm
Engine Type	220-240V / 50-60Hz	220-240V / 50-60Hz	-
Design	axial	axial	-
Duct diameter	125	125	mm
IP Code	IP X4	IP X4	-
Type	supply and exhaust	supply and exhaust	-
Mounting	Inline	Inline	-

Files archieve

Downloads

Modifications

Modification name
VENTS 125 VKOk
VENTS 125 VKOk L

Modification name	Ball bearing motor
VENTS 125 VKOk	-
VENTS 125 VKOk L


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Dimensions

Characteristics

Parameter	Value	Measurement unit
Ø D	125	mm
Ø D1	129	mm
B	185	mm
B1	169	mm
H	139	mm
L	93	mm
L1	31	mm
L2	45	mm
L3	29	mm

Wiring plan

Wiring diagram for the fans equipped with a built-in switch	Wiring diagram for the fans without built-in switch

Wiring diagram for the fans equipped with a timer / timer, humidity sensor and a built-in switch	Wiring diagram for the fans equipped with a timer / timer with a humidity sensor without built-in switch

Wiring diagram for the fans with a light lamp. Separate activation of the fan and the built-in lamp.	Wiring diagram for the fans with a light lamp. Parallel activation of the fan and the built-in lamp.

Wiring diagram for the fans with an light lamp and grounding. Separate activation of the fan and the built-in lamp.	Wiring diagram for the fans with a light lamp and grounding. Parallel switching of the fan and the built-in lamp.

Wiring diagram for the fans with grounding

* - only for fans designed for 12 V rated voltage (specified on the fan casing and packing).
S, S1, S2 - external switches.

Operating logic of the fans with optional equipment

The fan equipped with a timer is activated by the control voltage supplied to LT input. After the control voltage is disconnected the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time is adjusted by turning the respective potentiometer T control knob clockwise to increase and counter-clockwise to reduce it.
The fan equipped with a timer and humidity sensor is activated by the control voltage supplied to LT input or in case of exceeding the preset humidity threshold value adjustable from ~60% to ~90%. After the control voltage is disconnected or as the humidity level H drops below the set threshold the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time and the threshold humidity level are adjusted by turning the control knob of the respective potentiometer T for timer and H for humidity sensor clockwise to increase and counter-clockwise to reduce the set value. To set the maximum humidity level (90%) set the potentiometer control knob for H max position.
The fan equipped with a timer and motion sensor is activated in case of the moving detection at the distance from 1 m to 4 m with 100° detection angle. After motion is off the fan continues operating within the time period within 2 to 30 minutes according to the timer settings. The turn-off delay time is adjusted by turning the respective potentiometer T control knob clockwise to increase and counter-clockwise to reduce it.
Wiring diagram for connection of the light lamp to the fan timer operated by the common switch is shown on diagram 4. Upon the light lamp disconnection the fan continues operating according to the timer setting within the set time period.

Legend

Picture symbol		Designation		Modification description
		VKOk		Fan with a fixing bracket for flat surface mounting.
		VKO L		The motor is equipped with ball bearings for long service life (appr. 40 thousand hours) and fan mounting at any angle. The bearings are maintenance-free and contain enough grease for the entire operating period.
		VKO turbo		High-powered motor.
		VKO press		5-blade low-noise impeller with improved aerodynamics for higher fan capacity.
		VKO 12		Modification with low-voltage motor. 12 V AC power supply.