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- timer-based control logic (VK U1): 

to maintain air temperature with high accuracy. The fan changes its 

speed more often as compared to the previous control logic, but the minimum operating time at one speed 
is not less than 5 minutes.  As air temperature rises up to the set point, the fan switches to maximum speed. 
Synchronously, the speed switch delay timer is activated for 5 minutes. As air temperature drops down  
below the set point, but only after 5 minutes countdown after switching to high speed, the fan switches to 
lower set speed.  
If the initial temperature is below the set temperature point, the fan operates at low set speed from the start.  

The fan 

VK P

 (fig. 12) is equipped with a speed controller that enables switching the fan on/off, smooth 

speed (air flow) control from minimum to maximum value. 

MOUNTING 

The fan is designed for both horizontal and top installation and may be mounted on the floor or attached to 
the wall or to the ceiling, fig. 2. While mounting the fan provide extra protection against water ingress. 
The protection examples are shown in fig. 2: 
1. For the top mounting position: install a protecting hood above. 
2. For any mounting position: connect a straight air duct section at least 1 m long on both sides of the fan. 

 

The fan mounting sequence is shown in fig. 3-8. 
The fan wiring diagrams are shown in fig. 9. 

 

Wiring diagram designations: 
L - minimum speed terminal;
QF - automatic  circuit breaker; 
S - external  switch , i.e., light switch;
X - input terminal.

1

QF

Automatic circuit 

breaker designation 

Automatic 

circuit breaker 

External switch 

designation 

External 

switch  

S

5

EN 

Summary of Contents for VENTS VK

Page 1: ...2013 www ventilation system com model VENTS VK EN CENTRIFUGAL FANS user s manual ...

Page 2: ...al mental or sensory capacities without proper practical experience or expertise unless they are controlled or instructed on the product operation by the person s responsible for their safety Do not leave children unattended and do not let them play with the product Take steps to prevent ingress of smoke carbon monoxide and other combustion products into the room through open chimney flues or othe...

Page 3: ... U U1 fan with a speed controller and electronic thermostat equipped with a built in temperature sensor and a power cable with adapter fig 11 VENTS VK XXX Un U1n fan with a speed controller and electronic thermostat equipped with an external temperature sensor fixed on 4 m cable a power cable with adapter fig 11 VENTS VK XXX P fan with a speed controller and a power cable with adapter fig 12 XXX s...

Page 4: ...odel fig 11 is equipped with an electronic speed controller with electronic thermostat TSC for automatic speed control air flow regulation depending on air temperature temperature based control logic VK U to maintain air temperature with accuracy to within 2 C The fan changes its speed rarely As air temperature rises up to the set thermostat point the fan switches to high speed As air temperature ...

Page 5: ... controller that enables switching the fan on off smooth speed air flow control from minimum to maximum value MOUNTING The fan is designed for both horizontal and top installation and may be mounted on the floor or attached to the wall or to the ceiling fig 2 While mounting the fan provide extra protection against water ingress The protection examples are shown in fig 2 1 For the top mounting posi...

Page 6: ...oduct as 24 months following the sale date via retail network subject to the customer s ensuring compliance with the rules of transportation storage mounting and operation of the product In case of any malfunction of the product through the fault of the Manufacturing company within the warranty period service life the customer shall have the right to elimination of the manufacturing defects by mea...

Page 7: ...ituting document in case of non timely technical maintenance of the product by the customer dust mud oil condensate foreign particles in case of causing external damage to the product by the customer damage shall not apply to external changes of the product required for the product mounting in case of altering the product design or further reworking of the product in case of replacing and using pa...

Page 8: ... responsible for defects arising after transferring the product to the customer and caused by the customer s violating the rules of transportation storage assembly and operation of the product or by actions of third persons an accident or force majeure circumstances The manufacturing company shall not be responsible for damage to health and property of the customer caused by the customer s violati...

Page 9: ...9 2 1 m 9 ...

Page 10: ...5 3 6 4 MOUNTING QF QF 10 ...

Page 11: ...8 7 11 ...

Page 12: ...0 125 150 200 250 315 21 22 23 24 25 26 27 28 29 min max tC 30 C 20 C speed control knob temperature control knob min max speed control knob N L X QF L N S N L X QF L N QF VK 100 125 150 200 250 315 U U1 Un U1n P R 12 ...

Page 13: ...13 14 13 ...

Page 14: ...14 17 15 18 16 15 15 ...

Page 15: ...15 15 20 19 ...

Page 16: ...08 Acceptance certificate 100 125 150 200 250 315 www ventilation system com VK The fan is duly recognized as serviceable VKS Q U U1 n R P Approval mark Sold Seller name and stamp Manufacturing date Date of sale ...

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