Brunner USA Instructions - Robeys Ltd

OPERATIONThe USA offers the possibility of excluding the automaticmeasuring process after a failure to start manually resolved nofurther possibilities of use.The button for starting the measurement is located behind theglass sheet below the fault indication and is accessible only afterremoving the glass plate. Slide the glass plate up and out.The light emitting diodes (LED) on the front panel of the USAprovide information on the status of the device:Green LED is offGreen LED is onGreen LED flashesRed LED is offRed LED is onUSA is off.USA is working.Output for ventilation system is inoperation (there is no monitoring becausethe measured temperature is less than50 ° C *), ie no combustion is taking place).USA is active.Combustion is detected (temperaturegreater than 50 ° C *)). The pressure ratiosbetween indoor and heater arecontinuously tested.No fault.USA has triggered(Ventilation system was switched off,the differential pressure is too low)Note: If the USA has triggered the ventilation system is turnedon again at the earliest after 15 minutes *) and only when thereis sufficient pressure differential.Brunner USA Installation & Operation Manual 19August 2013