Vent-Axia Centrif Duo DP 25 63 20D Installation And Wiring Instructions Download Page 3

Installation and wiring instructions for the Centrif Duo and Centrif Duo Plus extract fans. 

 

  IMPORTANT: 
  READ THESE INSTRUCTIONS 
  BEFORE COMMENCING THE  
  INSTALLATION 

 
DO NOT install this product in areas where the following may be present or occur: 

 

Excessive oil or a grease laden atmosphere. 

 

Corrosive or flammable gases, liquids or vapours. 

• 

Ambient temperatures higher than 40°C or less than –5°C. 

• 

Possible obstructions which would hinder the access or removal of the fan. 

 
 

SAFETY AND GUIDANCE NOTES 
A. 

All wiring to be in accordance with the current I.E.E. Regulations, or the appropriate standards 
of your country and 

MUST 

be installed by a suitably qualified person. 

B. 

The fan should be provided with a local isolator switch capable of disconnecting all poles, 
having a contact separation of at least 3mm. 

C. 

Ensure that the mains supply (voltage, frequency, and phase) complies with the rating label. 

D. 

The fan should only be used in conjunction with the appropriate Vent-Axia products. 

E. 

It is recommended that the connection to the fan connector terminals is made with flexible 
cable. 

F. 

When the fan is used to remove air from a room containing a fuel-burning appliance, ensure 
that the air replacement is adequate for both the fan and the fuel-burning appliance. 

G. 

Precautions must be taken to avoid the backflow of gases into the room from the open flue of 
gas or other fuel burning appliances 

H. 

The fan should not be used where it is liable to be subject to direct water spray for prolonged 
periods of time. 

I. 

Where ducted fans are used to handle moisture-laden air, a condensation trap should be 
fitted. Horizontal ducts should be arranged to slope slightly downwards away from the fan. 

J. 

This appliance 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 appliance by a person responsible for 
their safety. 

K. 

Children should be supervised to ensure that they do not play with the appliance. 

 
 

DESCRIPTION 

As standard, the Centrif Duo and Centrif Duo Plus are suitable for panel/wall installations, surface 
mounting, either in a horizontal or vertical plane. A Flush Mount Kit (439256) is available as an 
accessory. Ø100mm ducting (flexible or rigid) can be attached providing rear exit as standard or 
side exit with the Flush Mount Kit. Adaptors for rectangular ducting can be used. For wall 
installations a Wall Kit (25 41 02 White / 25 41 00 Brown) can be used. Please see our catalogue 
or web site (www.vent-axia.com) for more information on ducting and termination options. 
 
 

A. INSTALLATION

 

 
A Backdraught Shutter Assembly is supplied. It is packed inside the product during transport. It is 
designed to block the duct when the fan is off in order to prevent cold draughts from outside 
entering the building. To use it, push it on to the end of the exhaust Spigot (

fig.1

) with the hinges 

on the flaps vertical. It is not required when the fan is set up to run continuously. 
 

Summary of Contents for Centrif Duo DP 25 63 20D

Page 1: ...f N Centrif Duo P 25 61 20D Centrif Duo T 25 62 20D Centrif Duo DP 25 63 20D Centrif Duo HTP 25 64 20D Centrif Duo Plus P 43 16 13B Centrif Duo Plus T 43 16 14B Centrif Duo Plus DP 43 16 15B Centrif D...

Page 2: ...separately Washable filter available separately for Centrif Duo Plus Pullcord Trickle speed LS connection to boost from a remote switch from off or trickle speed Two boost speed options available sel...

Page 3: ...be used where it is liable to be subject to direct water spray for prolonged periods of time I Where ducted fans are used to handle moisture laden air a condensation trap should be fitted Horizontal...

Page 4: ...at there is sufficient space for the product to be installed and that the Filter fig 3 can be removed for maintenance 3 Insert the wall sleeve with the larger diameter sleeve on the room side and ceme...

Page 5: ...that all covers are on correctly to ensure the optimum performance and water ingress protection of the fan 14 Switch the mains power supply on and check the fan is operating correctly B SETUP WARNING...

Page 6: ...f the two on the control PCB fig 4 7 i To REDUCE the operating time turn the timer adjuster ANTI CLOCKWISE ii To INCREASE the operating time turn the timer adjuster CLOCKWISE 4 RELATIVE HUMIDITY ADJUS...

Page 7: ...ash it and the front cover assembly in warm soapy water Dry them before replacing 3 Wipe the inlets and front face with a damp not dripping wet cloth until clean 4 Replace the filter 5 Turn the power...

Page 8: ...ave a metal mesh filter clipped on to the rear of the cover It can be removed easily and washed too Fig 4 Terminal Block Cover Cable Clamp Terminal Block PCB Cover and Screws Humidity Adjustment HTP m...

Page 9: ...9 Fig 5 Frame from optional Flush Mount Kit 4 screws Back Box Fig 6 Panel Clip Screw 4 off Panel Clip 4 off Chassis...

Page 10: ...ARNING THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED FROM THE POWER SUPPLY DURING INSTALLATION OR MAINTENANCE TO ACCESS THE SPEED CONTROLS PCB REMOVE THE TWO SCREWS HOLDING THE PCB COVER IN...

Page 11: ...ds PIR sensors or humidistats can be fitted in line with the mains live connection L in order to turn the fan or off N L Ls 1 Phase Supply 220 240V 50 Hz 3A Fuse Pull Cord Lamp 3 Pole Isolator Switch...

Page 12: ...l Factor CTRL 0 65 0 65 0 65 0 65 Control Typology Local Demand Control Timer control Local Demand Control Local Demand Control Declared Max Internal External Leakage Rates for BVUs or carry over for...

Page 13: ...27 Control Factor Control Typology CTRL Typology Control Factor CTRL 0 65 0 65 0 65 0 65 Control Typology Local Demand Control Timer control Timer control Local Demand Control Declared Max Internal Ex...

Page 14: ...14 Notes...

Page 15: ...15 Notes...

Page 16: ...fied or repaired by any person not authorised by the company IF CLAIMING UNDER TERMS OF GUARANTEE Please return the complete product carriage paid to your original supplier or nearest Vent Axia Centre...

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