Vulcan-Hart VHL2G Scale Related Maintenance Gas & Electric Boilers, Lubrication - Vhl Series

SCALE RELATED MAINTENANCE (GAS & ELECTRIC BOILERS)

Periodic maintenance is necessary to keep your boiler clean and efficient. Initially, after three months of steamer usage, it is recommended that you have your Vulcan-Hart authorized servicer inspect the boiler and perform the descaler maintenance described below. Local water conditions and steamer usage will determine the frequency that this service must be repeated; however, a minimum recommendation is once a year. This maintenance is not covered by warranty.

Cathodic protector(s) are provided inside the boiler to reduce boiler and component corrosion and reduce accumulation of scale from forming on the boiler interior walls. The cathodic protector(s) will be consumed. How fast the cathodic protector(s) will be consumed depends upon the chemical makeup of the feed water and the average volume of feed water used. An inspection by service personnel is recommended so that the expected normal life of the cathodic protector(s) can be estimated under your operating conditions. Thereafter, the cathodic protector(s) can be serviced at the appropriate frequency for your situation.

PROBE HOUSING BLOWDOWN VALVE (GAS & ELECTRIC BOILERS)

Open valve monthly to blow down the probes and to remove sediment and scale buildup. Valve is located toward the rear on the left side (refer to Fig. 3 or 4 on page 17). Wait until the boiler is cool before opening the valve.

LUBRICATION — VHL SERIES

The door screw was factory lubricated with high-temperature grease, but will require periodic relubrication by applying a bead of lubricant across the door handle screw threads. When the door screw is properly lubricated, the hand pressure required to seal the door is greatly reduced and the life of the screw and nut are lengthened. Frequency of lubrication depends upon use. Lubricate monthly at first and let experience determine the frequency. A high-temperature grease for the door screw can be obtained from Vulcan-Hart.

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