Triangle Tube Gas Condensing Boiler Prestige Solo 250

Seal any unused openings in the common venting system.

Visually inspect the venting system for proper size and horizontal pitch.

Check for blockage, restriction, leakage, corrosion, and other deficiencies in the venting system.

Ensure the following conditions are met

Place in operation the appliance being inspected.

Follow the lighting instructions for the appliance.

Loosen the retaining nut from the condensate drain assembly and disconnect the assembly from the boiler.

Empty any water from the trap and flush with fresh water as necessary to clean.

Remove plastic ball and clean with fresh water.

Check the drain piping from the condensate drain assembly to the drain. Flush to clean as necessary.

Install the plastic ball into the condensate drain assembly.

Reassemble onto the boiler by tightening the retaining nut with rubber seal onto the boiler. Hand tight only.

Follow the instructions on Page 58 'To Turn Off Gas to Appliance'

Is the boiler subject to freezing conditions?

Is antifreeze used in the system?

Allow the boiler to cool down to room temperature before servicing

Close the external manual gas valve on the gas supply line

Disconnect the gas piping and gas valve wire harness connector

Disconnect the wiring harness connectors from the blower

Inspect the venting system for blockages

Check for deterioration of gaskets

Inspect for any leakage in the venting system

Repair any deficiencies found during inspection

Verification of Connections and Support

Verify that the combustion air inlet is connected and sealed

Verify that the vent piping is connected and sealed

Ensure that the combustion air inlet and vent piping are properly supported

Place the boiler into high fire

Navigate to the Boiler Information Menu

Enter the supply water temperature

Is the flue gas temperature more than 54°F [30°C] above the supply water temperature?

Shut the boiler down and follow the heat exchanger cleaning procedure