TriangleTube Instinct COMBI 155, Инструкция по установке и обслуживанию

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CHAPTER 17 - MAINTENANCE PROCEDURES
• 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 or o-ring is in
good condition and positioned correctly. Replace
gasket or o-ring if necessary.
• Re-assemble the burner head onto the burner
mounting plate. Ensure the burner head gasket is
in good condition and positioned correctly. Replace
gasket if necessary.
• Re-assemble the burner plate assembly onto the
heat exchanger. Ensure the combustion chamber
2-in-1 insulation is in place and positioned correctly.
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.
• Re-assemble the gas supply connection and wire
harness to the gas valve. Open the external manual
gas valve. Check gas piping for any leaks as outlined
in
Section 10.5 on page 68 and repair if necessary.
• Torque all screws, bolts, and nuts in accordance
with specifications in Section 17.24 on page 87 .
• Place the unit back into service.
17.18. Check Flame Signal
• The flame signal can be read from the Boiler Infor-
mation screen. It should be a min. 2-3 μΑ at low fire.
• Check the ignitor condition if flame signal is low.
• Check ground wire for continuity if flame signal is
low. Replace ignitor if conditions are satisfactory.
17.19. Check Combustion Levels
Refer to Section 11.3.4 on page 71 for measuring
combustion levels and burner adjustments.
17.20. Check Flue Gas Temperature
• Manually place the boiler into high fire. See Section
11.3.4 on page 71 for procedure.
• Navigate to the Boiler Information Menu to observe the
flue gas temperature. See Section 9.14 on page 59 .
• If the flue gas temperature is more than 54°F [30°C]
above the supply water temperature, shut the boil-
er down and follow the heat exchanger cleaning
procedure below.
17.21. Clean Heat Exchanger
Shut down the boiler:
• Follow the instructions on page 70 “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
Section
10.5 on page 68
and repair if necessary
.
• Torque all screws, bolts, and nuts in accordance
with specifications in Section 17.24 on page 87 .
• 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
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