Clean Heat Exchanger; Check Carbon Monoxide Detectors; Review With Owner; Torque Specifications Table - TriangleTube PRESTIGE Excellence 110 Installation & Maintenance Manual

CHAPTER 17 - MAINTENANCE PROCEDURES

17.21. Clean Heat Exchanger

Shut down the boiler:
• Follow the instructions on Page 54 "To Turn Off
Gas to Appliance"
• Do not drain the boiler unless the boiler will be
subject to freezing conditions.
• Do not drain the boiler if antifreeze is 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 and disconnect the gas piping and gas
valve wire harness connector.
• Disconnect the wiring harness connectors from the
blower and remove the blower clamp. Remove the
blower from the unit.
• Remove the mounting nuts securing the burner
plate to the heat exchanger and set aside.
• Carefully remove the burner plate assembly from
the heat exchanger. Ensure that the combustion
chamber 2-in-1 insulation is not damaged during
removal of burner mounting plate assembly.
• Use compressed air or water to remove any accu-
mulation from the heat exchanger flue ways.
• Re-assemble the burner plate assembly onto the
heat exchanger. Ensure the combustion chamber
2-in-1 insulation is in place and positioned correct-
ly. Replace if necessary.
• Remove the blower gasket from the burner plate
assembly and clean with fresh water. Reinstall
blower gasket onto burner plate assembly with the
check valve hinge at the top.
• Re-assemble the blower onto the burner plate and
reconnect the wiring harness connectors.
• Reconnect the gas piping and wire harness to the
gas valve. Open the external manual gas valve.
Check gas piping for any leaks as outlined in Sec-
tion 10.4 on page 53 and repair if necessary.
• Torque all screws, bolts, and nuts in accordance
with specifications in Section 17.24 on page 72.
• Close isolation valves on the boiler water piping to
isolate the boiler from the heating system.
• Attach a hose to the boiler drain valve and flush
the boiler thoroughly with fresh water by using the
purge valves to allow water to enter through the
make-up water line to the boiler.
72
• Once the boiler has been completely flushed, re-
turn the boiler back into operation.
• Perform the required startup and checkout proce-
dures as outlined in Chapter 10 on page 51 and
Chapter 14 on page 63.

17.22. Check Carbon Monoxide Detectors

Verify that at least two (2) carbon monoxide detectors
are installed and operating properly. One must be in-
stalled in the mechanical room where the PRESTIGE Ex-
cellence is located and another installed in the living
area outside the bedroom(s).

17.23. Review With Owner

Ensure the owner understands the importance of per-
forming the maintenance schedule specified in this
manual.

17.24. Torque Specifications Table

Item
Burner Plate Nuts
Burner Head Bolts
Fan Clamp Screw
Gas Valve Screws
Venturi Screws
Ignitor Screws
Torque Req'd (in-lbs)
Min. Max.
44 53
26.5 31
62 71
31 35
31 35
26.5 31