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CHS Series
Annual Inspection Checklist
The Slant/Fin CHS 300-399 Common Venting must be inspected at the beginning of every heating season by a
Qualified Technician.
1. For each boiler perform the Annual Inspection Checklist in the boiler Installation and Operation
Instructions.
2. Inspect the CHS 300-399 Common Venting termination components for damages caused by exposure to
weather elements. If termination components are damaged or worn have the parts removed and
replaced.
3. Examine the termination Bird Screens for debris.
4. Examine all venting for evidence of leaks. If a leak is found repair or replace the part.
5. Look for condensate or debris in the Non-Return Valves, if found remove and clean them.
6. Examine the support clamps for rigidity; tighten if loose or replace if damaged.
7. Check the Connector Rings for a secure lock between each connection.
8. Conduct a visual inspection to ensure the CHS 300-399 Common Venting is adequately sloped and not
sagging.
9. Confirm there is nothing obstructing the flow of the Combustion Air-Inlet and Exhaust Gases.
10. Keep boiler area clear and free from combustible materials, gasoline, and other flammable vapors and
liquids.
Failure to properly inspect each joint fitting in the CHS 300-399 Common Venting may
result in flue gas leakage causing serious injury or death.
CHS 300-399 Common Venting
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Slant Fin Corp.
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