7.1.1 Venting
Maintenance Required for Venting Frequency Check
Check and replace filter as needed. For replacement instructions, see
Replacing the air filter on page 102
Monthly
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Have your local heating contractor inspect the appliance annually.
Annually
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Inspect system for unusual noises. Call your local heating contractor for
service if needed
As needed
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Keep vent terminals clear of obstructions (snow, dirt, etc.). As needed
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Inspection of the boiler is to be performed annually by a qualified service
technician.
Annually
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7.1.2 Condensate trap
Maintenance Required for Condensate Trap Frequency Check
Examine to see if cleaning is necessary (see Cleaning a condensate
trap on page 103).
Ensure that the trap has been re-filled completely before firing boiler.
Annually
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If condensate neutralization is used, check the pH level of condensate
discharge.
Annually
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7.1.3 Burner
Maintenance Required for Burner Frequency Check
Remove the burner to inspect for extent of fouling (see Replacing the
burner in the EX 400 and 500 models on page 90 or Replacing the burner
in the EX 700 and EX 850 models on page 100).
1. Wash the burner from outside with a domestic water pressure,
and dry using compressed air.
2. Evaluate and establish a reasonable burner inspection and
cleaning schedule. Some boiler / locations may call for annual
service, others with clean burners needing attention every 2 – 5
years.
3. Reassemble. Visually inspect the burner through sight glass,
ensuring flame is stable, without excessive fluttering. Normal
flame pattern is evenly distributed over the burner surface.
Annually
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Section: Service and maintenance