Triangle Tube Gas Condensing Boiler Prestige Solo 299

Read the flame signal from the Boiler Information screen

Is the flame signal at least 2-3 μΑ at low fire?

If flame signal is low, check the ignitor condition

If flame signal is low, check ground wire for continuity

Replace ignitor if conditions are satisfactory

Vent and Air Inlet Piping Inspection

Check vent piping for obstructions or damage

Check combustion air inlet piping for obstructions or damage

Pressure Relief Valve Inspection

Check the pressure relief valve for proper operation

Condensate Drain System Inspection

Check the condensate drain system for blockages or leaks

Ensure tank is partially filled with water leaving an air gap as a cushion

Ensure the tank is fitted with a device that reduces gravity circulation of air-saturated tank water back into the system

Ensure no automatic air vents are used in the system

Ensure the system contains a minimum of one automatic air vent

Recommended location of the air vent should be atop an air eliminator

Remove the tank from the system and check the charge pressure

Enter the charge pressure of the tank in psig

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.

Close all exterior building doors and windows.

Close all doors between the appliance space and other spaces in the building.

Turn on clothes dryers and any appliance not connected to the common venting system.

Turn on any exhaust fans, such as range hoods and bathroom exhausts, to maximum speed.

Inspect the flame pattern through the observation port of the heat exchanger.

Is the flame pattern fully blue and covering the entire burner surface during high fire?

Shut the unit down and allow it to cool thoroughly before disassembly.

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.

Remove the blower clamp and blower from the unit.