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INTRODUCTION 

Commercial Single EC Fan Trickle/Boost Controller incorporating the following 
functionality: 
 

  Controls trickle and boost speed for EC single fan.  

  Trickle and boost speed set by on-board potentiometers.  

  Live switch input for boost speed selection  

 

SPECIFICATION 
 

 

 

475775 EC Trickle/Boost Fan Controller 

Supply Voltage 

V AC 

230 VAC 

AC line Frequency 

Hz 

50 Hz 

Supply Power 

1W 

Operating 
Environment 

 

-20 to 40°C, IP22 Enclosure 

Dimensions 

 

Enclosure 94mm(L) x 94mm (W) x 57mm (H)  

Fixing  Hole Centres 

 

79 x 79mm 

 

CONNECTION DETAILS 

Switched Live Mains Connector J1 

Pin Function 

LS 

Switched Live, boost speed select input 

Neutral 

 

Fan Motor Controls Connector J2 

Pin Function 

10V 

10 Volts supply  

0V 

Ground 

1/10V 

0 to 10 Volts fan speed control output 

 

 
INSTALLATION 
 
See “Safety” information at the beginning of this document. 

 

Wiring:  

For connections; see connection details table above and wiring diagram below - Route 
control wiring separately from AC mains wiring. 
Remove enclosure knock-outs as required to fit cable glands, taking care not to damage the 
PCB. 
Ensure that the switch S1 on the control PCB of the EC Slimpak Single Fan unit is set to the 
EX position, see wiring diagram below. 
 
 
 
 
 
 

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