NTI TRX Series Installation, Start-up, Maintenance, Parts, Warranty

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Contents

NTI TRX Series Installation, Start-up, Maintenance, Parts, Warranty Manual pdf 97 page image

97Part 14 - Maintenance2. Clean the filter with a toothbrush and clean running water.3. Reinstall the CH Filter.4. Remove the DHW flow switch to have access to the DHW inletfilter. Remove the clip and pull the flow switch assembly upward. Failure to replace a damaged sealing ring will result in exhaustgas leaks, substantial property damage, severe personal injury, ordeath.Ensure that the correct gas orifice and bi-venturi are used forthe correct fuel type for the boiler - Natural Gas or Propane. SeeConversion Kit Instructions. Failure to do so will result in substantialproperty damage, severe personal injury, or death.DANGERDANGERFigure 106 - Removing the DHW FilterDHW Filter5. Clean the filter with a toothbrush and clean running water.6. Reinstall the DHW inlet filter.7. Refill the DHW circuit following the filling and purging instructionsin this manual.8. Refill the CH circuit following the filling and purging instructionsin this manual.9. Restore gas and power to the boiler.D. Replacing ComponentsAt any point in time over the boiler’s service life it may be necessaryto replace boiler components. If the boiler displays an error message,determine its cause and possible remedies.If the remedy is replacement of a component, ensure:1. That the boiler is powered OFF. Press the ON/OFF button to turnthe boiler off. Then turn the main electrical power to the boiler offat the circuit breaker.2. The boiler electrical connection is connected properly. A looseelectrical connection could the root cause of problems.3. The front cover has been removed.4. The main shutoff gas valve is closed.5. All water valves to and from the boiler (supply, return, inlet, outlet)are closed.6. If necessary, the water has been drained from the boiler and/orappropriate circuit.7. No water can get into the display / control panel.Replacing the Burner1. Remove the front cover and pivot the electronic housing followingthe instructions described in Removing the Cabinet Cover andInspecting the Boiler.2. Remove the combustion assembly as described in Cleaning theHeat Exchanger Combustion Chamber.3. Remove, inspect, and replace the burner as described in Checkingthe Burner.4. Replace all damaged seals that are damaged or showing signs ofwear.5. Proceed in the reverse order to reinstall the components.Replacing the Fan1. Remove the combustion assembly as described in Cleaning theHeat Exchanger Combustion Chamber and Checking the Burner.2. Remove the three nuts and bolts to disconnect the fan from the airinlet assembly.1 2 3 4 5 6Legend:1 - Bi-Venturi Tube(Replace with the Bi-Venturifor Gas Propane present inthe Convertion Kit deliveredwith the boiler - See FuelConversion Kit Instructions)2 - Gas Orifice (Replace with theGas Orifice for Gas Propanepresent in the ConvertionKit delivered with the boiler- See Fuel Conversion KitInstructions)3 - Gas Seal4 - O-Ring5 - Fan6- Fan to Air Inlet ChannelGasket3. Inspect the fan to air inlet channel gasket. Ensure it is not damagedor deteriorating.Figure 107 - Removing the FanFigure 108 - Removed Fan, Bi-Venturi, and Components