Fig. 1 and Fig. 2 show the front view and the back view of the BRT-782 speed control switch respectively. It has a rotary control unit on the right and a standard socket on the left. It comes with a power cord on the back.

When BRT-782 rotary speed control switch is used as a portable device there is no need for  further wiring installation. Once the power cord of BRT-782 is plugged to a wall socket or extension cord it is ready to go.

When BRT-782 rotary speed control switch is used as a wall mount unit the power cord can be  removed and the unit is directly wired to power lines. Please find Wiring and Installation  instructions as follows.

  There are 5 wiring and installation steps (please refer to in Fig. 3):

             Step one:      Open the switch cover and use a screwdriver to pry off the front plates on  lower edges;

             Step two:      Take off the screws to remove the bottom plate;

             Step three:    Take off the screws pointed by the red arrows to remove the cable clamp and  the power cord that comes with the unit;

             Step four:      Insert the wires into the terminal blocks and tighten the terminal block screws; and

             Step five:      Reverse step 3 2 and 1 to reinstall the cable clamp the bottom plate and  front plates. Finally close the cover.

BRT-782 speed control switch is easy to operate. Once it is installed plug the fan’s power cord to  the socket of BRT-782.
 

1.      Turn on or turn off the fan and adjust fan speed:       As  shown  in  Fig. 4a  Rotating  the  knob  clockwise  will  turn  on  the  fan  and  rotating  the  knob  clockwise further  more will  reduce  the  fan  speed.  When  the  fan  is  on rotating  the  knob  counter-clockwise  will  increase  the  fan  speed  and  rotating  the  knob  counter-clockwise  further  more to the “Off” position will turn off  the fan; and

2.    Set the minimum fan speed limit:   As  shown  in  Fig. 4b  the  minimum  fan  speed  can  be  fine-tuned  by  using  a  dial  on  the  side  of  BRT-782  during  initial  installation.   Turn  on  the  fan  and  rotate  the  speed  control knob  to  run  the fan  at  the lowest  speed. Then  rotate the fine-tune  dial to obtain a minimum fan speed as desired.

  Note:        Adjusting the minimum speed is necessary for some motors or the motor may not move  due to too low a driving voltage

BRT-782 rotary speed control switch can be used for all kinds of appliances driven by motors especially for high power loads such as cooling fans ventilation fans blowers etc. It has wide  applications at various locations such as homes schools laboratories hospitals bars restaurants  etc.