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44 Maintenance <br /> Cleaning the Negative Pressure Tube <br /> 1. Disconnect the end of the tube from the combustion blower. <br /> rF <br /> 2. Clean the nozzle (use a paper clip, pipe cleaner, etc.). <br /> Cleaning the Vent <br /> Make sure the cap is free of debris <br /> (especially if it has a screen that could <br /> become blocked). <br /> Check the vent sections for creosote <br /> A accumulation(indicating a poorly burning <br /> stove). Accumulation over 1/4"must be <br /> \ removed. <br /> Flyash will deposit along <br /> sections that are horizontal. <br /> On vertically vented systems,the dirtiest portion <br /> is often the point where the vent turns upwards <br /> (i.e.the 'Tee"). Fortunately,the"Tee"has a built- <br /> U in clean-out cover. Place a container under the <br /> "Tee",disconnect the cover and remove all flyash. <br /> While open, use a flashlight to look up the vent to <br /> check for build-up. <br /> /A WHENEVER ANY PORTION OF THE PELLET VENT IS DISCONNECTED, THE JOINTS MUST <br /> BE SEALED WITH RTV 500° F. SILICONE SEALANT, UNLESS OTHERWISE SPECIFIED BY <br /> THE VENT MANUFACTURER. <br /> ©Travis Industries 4070806 100-01191000 <br />