SKG4-E Gas Fired Humidifier
Installation Instructions and User Manual
Page | - 66 -
Burner Assembly and Heat Exchanger Tube
Maintenance
The burner assembly and heat exchanger tubes do not require regular maintenance. However, if the
heat exchange tubes contain carbon deposits, soot or other residue, the cleaning procedure
described below must be followed:
Soot and carbon deposits may indicate a combustion problem. The combustion problem
must be corrected by skilled and qualified technical personnel.
1. Turn off the gas valve, electrical power, and water supply valve.
2. Remove the top covers of the humidifier to gain access to the gas train.
3. Disconnect the wiring to the blower, gas valve, and igniter.
4. Disconnect the gas line from the gas valve.
5. Free the blower and gas valve by removing the nuts that hold the blower to the
combustion chamber.
6. Remove the nuts that support the igniter in place. Remove the support without causing
any damage to the igniter.
Use caution while removing the igniter, as it is very fragile. It is recommended to have
a spare igniter on hand.
7. Disconnect the vent from the top of the evaporation chamber.
8. Remove the combustion chamber flange, air/gas supply tube, and burner as follows:
a. Remove the nuts that attach the top of the evaporation chamber from the housing.
b. Lower and remove the top of the chamber from the front of the unit. The combustion
chamber flange, air/gas supply tube, and burner can now be easily removed from the
top of the evaporation chamber.
9. Clean the combustion chamber and remove any debris using a vacuum cleaner.
10. Clean the heat exchanger and remove any debris using a vacuum cleaner from the flue
outlet.
11. Inspect all gaskets for damage and wear. Replace any damaged and worn out
components.
12. Reinstall all components in the reverse order.
Burner Maintenance
The burner(s) does not require cleaning under normal use conditions. However, depending on the
operating environment, the burner(s) may require periodic cleaning to remove accumulated materials.
Failure to clean burners may result in reduced unit capacity or unacceptable flue gas CO levels.
Summary of Contents for SKG4-E Series
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