VENTS 125 LDTH Fresh time turbo

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Maximum capacity - 209 m³/h.

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Description
Characteristics
Capacity diagram
Downloads
Options
Dimensions
Wiring plan

Description

APPLICATIONS
Continuous or periodic exhaust ventilation of bathroom, showers, kitchens and other utility spaces. Ventilation shaft mounting or duct connection.	Low to medium air flow motion for short distances at low air resistance. Compatible with 100, 125 and 150 mm air ducts.
DESIGN
A battery-powered quartz clock is built into the fan casing. Both Arabic and Roman hour plates are available on the front panel. Modern design and aesthetic look. 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 34.
MOTOR
Reliable and low-watt electric motor. Designed for continuous operation and requires no maintenance.	Equipped with overheating protection.
CONTROL
Manual: 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.	Automatic: By the electronic control unit BU-1-60 (see Electrical Accessories). The control unit is supplied separately. By the timer T (the built-in run-out timer enables the fan operation within 2 to 30 minutes after the fan switching off). By the humidity sensor and timer TH (if the humidity level in the room exceeds the sensor threshold adjustable value within 60-90% the fan switches automatically on and operates until the humidity level drops to the standard level, after that the fan continues operating within the time period according to the timer setting, then shuts down).
MOUNTING FEATURES
The fan is mounted directly into the ventilation shaft. Flexible duct application is recommended in case of remote location of the ventilation shaft. The air duct is connected to the fan exhaust flange through a clamp.	Fixed to the wall by self-tapping screws. 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.
MOUNTING EXAMPLE

Characteristics

Parameter	Value	Measurement unit
Voltage	220-240	V
Frequency	50/60	Hz
Power consumption	24	W
Air capacity	209	m³/h
Current	0.105	A
RPM	2400	min^-1
Sound pressure level at 3 m	36	dBА
Weight	0.84	kg
Spigot size	125	mm
Engine Type	220-240V / 50-60Hz	-
Design	axial	-
Duct diameter	125	mm
IP Code	IP 34	-
Type	exhaust	-
Mounting	wall mounting , ceiling mounting	-

Capacity diagram

Selection method:
Air flow:
Pressure:

Operating point

Air flow: --
Pressure: ---

Files archieve

Downloads

Modifications

Modification name	Humidity sensor	Timer	High-powered fan
VENTS 125 LDTH Fresh time turbo				+

Dimensions

Characteristics

Parameter	Value	Measurement unit
Ø D	125	mm
B	175	mm
H	140	mm
L	145	mm
L1	44	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
		LD Fresh time R		Fan with a Roman hour plate.
		LD Fresh time К		Fan is equipped with a backdraft damper for back flow preventing.
		LD Fresh time 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.
		LD Fresh time turbo		High-powered motor.
		LD Fresh time 12		Modification with low-voltage motor. 12 V AC power supply.
		LDT Fresh time		Equipped with a regulated timer with the operating time from 2 to 30 minutes.
		LDTH Fresh time		Equipped with a timer with the operating time from 2 to 30 minutes and a humidity sensor with the threshold value from 60 to 90%.
		LDV Fresh time		Equipped with a pull cord switch.
		LDVT Fresh time		Equipped with a pull cord switch and a regulated timer with the operating time adjustable from 2 to 30 minutes.
		LDVTH Fresh time		Equipped with a pull cord switch, regulated timer with the operating time adjustable from 2 to 30 minutes and a humidity sensor with the operating threshold range from 60% to 90%.