Check Control Wiring. TRIANGLE TUBE Prestige (PS)

Maintenance Procedures

Check Control Wiring

Inspect all control wiring. Ensure wiring is in good condition and properly connected.

Check Control Settings

1. Set the control display to PARAMETER mode and check all boiler settings. Adjust setting as necessary see page 47.

2. Check any external limit control settings (if used). Adjust settings as necessary.

Perform Start-up and Checkout Procedures

Start the unit and perform the start-up procedure as listed in this manual.

Verify the cold water fill pressure is correct and the operating pressure of the boiler is within normal operating range.

Complete the checkout procedures as referenced in this manual.

Check Burner Flame

Inspect the burner flame through the observation port on the heat exchanger.

If flame pattern is not fully blue and covers 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 and disconnect the gas piping and rectifier plug.

Disconnect the wiring harness connectors from the blower and remove the blower retaining screws or nuts. Remove the blower from the unit.

Remove the mounting nuts securing the burner mounting plate to the heat exchanger and set aside.

Carefully remove the burner mounting plate assembly from the heat exchanger. Ensure combustion chamber insulation is not damaged during removal of burner mounting plate assembly. See WARNING on page 64.

Remove the burner head mounting screws and remove the burner head. Inspect the burner head for deterioration. Use compressed air or a vacuum to clean the burner head.

Remove the venturi and gas valve assembly from the blower.

Use a vacuum cleaner or compressed air to clean the interior of the blower assembly.

Inspect the blower blades to ensure they are clean and not damaged.

Re-assemble the venturi and gas valve onto the blower. Ensure the venturi gasket is in good condition, positioned correctly and replace gasket if necessary.

Re-assemble the burner head onto the burner mounting plate. Ensure the burner head gasket is in good condition, positioned correctly and replace gasket if necessary.

Re-assemble the burner mounting plate assembly onto the heat exchanger. Ensure the burner plate gasket and combustion chamber insulation is in place and not damaged, replace gasket and insulation if necessary. See WARNING on page 64.

Re-assemble the blower onto the burner mounting plate and reconnect the wiring harness connectors.

Re-assemble the gas supply connection and rectifier to gas valve. Open the external manual gas valve. Check gas piping for any leaks as outlined on page 41 and repair if necessary.

Place the unit back into service.

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