Brunner USA Instructions - Robeys Ltd

FUNCTION TEST AND MAINTENANCEWhen the USA responded:USA constantly monitors the temperature of the flue pipe, theoperating status is indicated by the green LED. If the temperaturerises above 50 ° C (default), a burn is detected, the green LEDstarts to flash, from here the vacuum of the chimney is monitored.In order to ensure a safe exit of flue gases a comparison betweenthe room and the flue must be made, there must be a vacuum ofat least 4 Pascal.An exhaust hood or a controlled living space ventilation canproduce much higher vacuum, the subsequent flow of air isprevented by the modern, tight construction. To prevent backflow ofexhaust gas into the room, USA must stop the fan, in this case:the red LED will light and the ventilation system will be switchedoff.Function test:To test the function of the USA, connect the power and the vacuumsensor (green LED illuminated).The temperature sensor must reach approximately 50°C (greenLED flashes) (value in delivery state).Hold the vacuum hose into the room (do not connect to thechimney and not blow into it). Within about 30 seconds, the USAshould shutdown (red LED lights).Brunner USA Installation & Operation Manual 21August 2013