Slant/Fin VHS-180 VICTORY II VHS Models, High Limit Control Test, Air Flow Pressure Switch Test

VICTORY II VHS Models

Figure 20.

1.High Limit Control Test

Set thermostat high enough for water temperature to reach high limit control setting of Aquastat. When this temperature is reached, the high limit switch should open and the main gas valve should close automatically.

2.Gas Control Safety Shutdown Test

With main burners firing, disconnect the ignition cable from S8600 ignitor (see Figure 17).

Gas valve should shut off the main burners. If gas valve fails to shut off the main burners, replace the gas valve.

3.Air Flow Pressure Switch Test

With main burners firing, remove plastic hose from Pres- sure Switch (see Figure 22). Gas valve should shut off the main burners.

WARNING: If any of the above controls fail to operate properly, they must be replaced.

4.Checking for Gas Leaks

Using soap solution, check for gas leaks from meter to burner, including gas valve, gas piping, manifold and pilot burner.

DO NOT use open flame.

Figure 22.

CARE AND MAINTENANCE

This section must be brought to the attention of the owner by the installer so that the owner can make the necessary arrangements with a qualified service agency for the periodic care and maintenance of the boiler. The installer must inform the owner that the gas supplier can recommend a number of qualified service agencies. The installer must also inform the owner that the lack of proper care and maintenance of this boiler and any fuel burning equipment may result in a haz- ardous condition. Installer should discuss contents of the User’s Information Manual (Publication VHS-UIM) with the owner.

A trained and qualified service technician should perform the inspections listed in these instructions before each heating season and at regular intervals.

1.General Maintenance

A.Boiler control check. See “Safety Check” on Page 20.

B.Venting system inspection

1.Check for obstructions, condensation, corrosion and physical damage.

2.If the boiler is vented horizontally through the wall, the outside termination and screen should be checked for any debris blocking the opening and cleaned as required.

Figure 21.

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