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Automatic operation with external switch 
to override the extractor: 
The  extractor  is  connected  to  the  main 
supply with three wires.  
Operation 

as 

previous 

“Automatic 

operation”, with the facility to override the 
humidistat  by  means  of  the  light  switch 
when  the  humidity  level  in  the  room  is 
lower than the selected level. In this case 
the extractor continues to operate for the 
selected  period  of  time  (over-run  timer) 
after the switch light has been switched 
off.  

ATTENTION: When the humidity rate is 
above the selected value, the automatic 
option takes precedence over the manual 
and the unit cannot then be switched off 
using a switch. 

Start-up timer function: 
In  this  operation,  the  “start-up  timer 
function”  allows  to  delay  the  extractor 
start-up  for  a  period  of  50  seconds.  So 
that, for example, the fan does not switch 
on  if  the  usage  time  of  the  bathroom  is 
less than 50s. 
If  you  exceed  the  50s  and  the  humidity 
level  in  the  room  is  below  the  selected 
level, the fan switches on, and when the 
light switches off, runs the time set by the 
timer. 
This  function  is  selected  with  the  dip-
switch 8. 

Factory settings: 
-  Interval function: OFF 
-  Interval time: 4h 
-  Humidistat: 60%HR 
-  Timer: 1 minute 
-  Start-up timer function: OFF 

SILENT-100 PIR  

(This  version  is  only  available  as 
SILENT-100)  
Models provided with a PIR detector. The 
unit 

starts 

automatically 

when 

movement  is  detected  with  maximum 
distance of 4 meters (fig.9). 
They  are  also  fitted  with  an  adjustable 
“run on” timer (1 to 30 minutes), and the 
unit  will  continue  to  operate  for  the  set 
period  after  initiation  by  the  movement 
detector.  
To  set  the  timer,  turn  the  potentiometer 
on the printed circuit board as (fig. 7). 
-  To  reduce  the  “run  on”  time,  turn 

anticlockwise (min. 1 minute). 

-  To  increase  the  “run  on”  time,  turn 

clockwise (max: 30 minutes). 

SILENT P  

Models  provided  with  on/off  pullcord 
switch use the following wiring diagram:  
Fig.11: Fan operating only with pullcord.  

Maintenance 
Fan equipment should be electrically 
isolated  and  locked  out  before  any 
work starts.  

The extractor fan only requires periodical 
cleaning using a cloth lightly impregnated 
with a soft detergent. 

Recycling. 

In 

accordance 

with 

EEC 

Standards  and  our  responsibility 
for  future  generations,  we  are 
obliged to recycle all the materials 
we can.  

Therefore,  please  deposit  all  waste 
material 

and 

packaging 

in 

their 

corresponding  recycling  containers  and 

Summary of Contents for SILENT 100

Page 1: ...SILENT Instruction lea et...

Page 2: ......

Page 3: ...Fig 1a Fig 1b 1 2 3 4 5 1 2 3 4 5 6 3...

Page 4: ...Fig 4 Fig 3 Fig 2 L N L N Ls L N L N Ls 4...

Page 5: ...L N Fig 7 Fig 6 Fig 5 L N Ls L N Ls T min T min A 5 20 30 L N SILENT T SILENT IT SILENT PIR 5...

Page 6: ...Fig 10 Fig 9 Fig 8 L N L N Ls L N L N Ls 2 3 4 1 5 6 7 8 ON 2 3 4 1 5 6 7 8 ON OFF 6...

Page 7: ...Fig 1 1 L N L N Ls SILENT 100 SILENT 125 150 A B E D C F MODEL A B C D E F SILENT 100 158 158 109 3 84 6 79 98 9 SILENT 125 180 180 119 89 80 118 SILENT 150 214 214 149 113 5 95 147 SILENT 7...

Page 8: ...and that the details on the instruction plate ful l your requirements The installation and the disconnection device of the xed installation used must be in accordance with the installation regulations...

Page 9: ...here or via a ducted system g 2 The unit can be mounted on the wall or ceiling using the 4 raw plugs and the screws provided Make a hole in the wall or ceiling of diameter SILENT 100 105 to 107 mm SIL...

Page 10: ...ing circuit To set the timer turn the potentiometer on the printed circuit board as g 7 To reduce the run on time turn anticlockwise min 1 minute To increase the run on time turn clockwise max 30 minu...

Page 11: ...r hours without stopping the Interval function allows the fan to switch o automatically one hour after it began to run The extractor keeps switched o during the set time for interval function If the h...

Page 12: ...the dip switch 8 Factory settings Interval function OFF Interval time 4h Humidistat 60 HR Timer 1 minute Start up timer function OFF SILENT 100 PIR This version is only available as SILENT 100 Models...

Page 13: ...es Steel and iron Plastics Electronic scrap After Sales Service We recommend you do not dismantle or remove any other parts than those mentioned as any tampering would automatically cancel the guarant...

Page 14: ...he tting wiring instructions relevant guidance documents and by a competent and quali ed person proof may be required please return the product to the place of purchase for a replacement Warranty Cond...

Page 15: ......

Page 16: ...Ref 9023065401 EnviroVent Ltd EnviroVent House Hornbeam Business Park Harrogate HG2 8PA 01423 810 810 info envirovent com www envirovent com...

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