Wiring your kit<br>Please see Spal's wiring diagram below before wiring your brushless fan. <br><br>Note: These kits will require the purchase of a maxi style fuse holder and fuse. A 40 amp fuse for 300W fans and 50 amp fuse for 500W fans. <br><br>Choosing the right temperature sensor range<br><br>Make sure that the minimum on temperature is higher than your thermostat rating. For example if you are using a 170 degree thermostat you would want to use the 175-195 or 190-215 sensors. If you use a sensor that has a minimum temperature that is lower than your thermostat the fan will never be able to reach its lowest setting and turn off.