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� A% • .,�..D�n kmso ommerctat Flumber, Plumbing Contractor)
<br />Those who have the knowledge and skill to install, maintain, repair, alter or extend
<br />plumbing, septic tanks, water supply systems, storm sewer and all fixtures; appliances;
<br />appurtenances, apparatus or equipment used in connection therewith, inside of; or
<br />attached to, any building, lot or. premises.
<br />MASTER PLUMBER WITII GAS
<br />Those who are qualified to perform the work of a master plumber, and also install,
<br />maintain or repair gas piping, appliances, lines, laterals, tanks and other appurtenances
<br />in connection therewith.
<br />JOURNEYMAN PLUMBER
<br />Those qualified to perform work in the plumbing trades while employed or supervised
<br />by a master plumber.
<br />Those qualified to install, repair, alter, extend or design; central air conditioning,
<br />refrigeration, heating and ventilating, including ductwork and unfired pressure vessel
<br />systems, lift stations, gasoline tanks and pumps, fire sprinkler systems, fuel trans-
<br />mission lines, and all appurtenances, apparatus or equipment used in connection
<br />therewith.
<br />AIR CONDITIONING CLASS "A" (Also HARV "A")
<br />Those who are qualified to install, maintain, repair, fabricate, alter of extend; central
<br />air conditioning, refrigeration, heating and ventilating, including ductwork within i
<br />complete system unlimited in horsepower or tons, and all appurtenances, apparatus,
<br />piping vessels, ducts and insulation used in connection therewith.
<br />AIR CONDITIONING CLASS "B" (Also HARV "B")
<br />Those who are qualified to install, maintain, repair, fabricate, alter of extend; central
<br />air conditioning, refrigeration, heating and ventilating, including ductwork within a
<br />complete system limited to twenty-five tons cooling and five hundred thousand BTU
<br />heating, and all appurtenances, apparatus, piping vessels, ducts and insulation used
<br />0n connection therewith.
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