OH HVAC Contractor case studies
OH HVAC Contractor · Put your knowledge to work in context.
The Ohio HVAC Contractor license is the state contractor credential issued by the Ohio Construction Industry Licensing Board (OCILB), which operates within the Department of Commerce's Division of Industrial Compliance. OCILB licenses qualified contractors in the electrical, HVAC, plumbing, hydronics, and refrigeration trades; individuals who meet the Board's qualifications and pass the required licensing examination are issued a state contractor license commonly called a Master License. The OH HVAC Contractor case studies are 5 cases and about 4,927 words.
1New-Construction Heat Pump: High Static and One Starved Bedroom
A crew just started up a 3-ton, 16 SEER2 split heat pump in a 2,100 ft² new-build ranch near Dayton. The homeowner says two rear bedrooms never cool while the front of the house gets uncomfortably cold.
921 words, about 5 min2Walk-In Freezer Running Warm: Starved Evaporator, Not a Shortage of Gas
A 10×12×8 ft walk-in freezer at a Cincinnati restaurant is holding 8°F against a −5°F setpoint, and the manager says the ice cream is soft. It is served by a remote R-404A condensing unit; the manager believes the system holds about 90 lb of refrigerant, but the nameplate charge is illegible.
968 words, about 5 min3Converted Gravity System: Gurgling, Short Cycling, Cold Upstairs
A 1950s two-story house in Cleveland has a 140,000 Btu/hr atmospheric cast-iron boiler with a standing pilot and a tankless domestic coil, feeding two zones of converted gravity cast-iron radiators through 1¼-in. Years ago the gravity system was converted to forced circulation: the circulator now sits on the supply and pumps into the boiler, and the original steel compression tank hangs off the return at the boiler with an old-style airtrol fitting.
984 words, about 5 min4Rooftop Replacement: Reusing a Branch Circuit That No Longer Fits
A 208/230 V single-phase packaged rooftop unit is replacing an aging 3-ton unit on a small office building. The new nameplate reads: minimum circuit ampacity 32.4 A, maximum overcurrent protection 50 A, compressor rated load amps 18.6 A, outdoor fan 1.5 A, indoor blower 2.0 A.
999 words, about 5 min5One Sales Call, Three Licenses, and a Contract Signed at the Kitchen Table
An Ohio-licensed HVAC contractor - the license is held by the owner individually, and he is the company's qualifying licensee - sells a 14,800 job at a homeowner's kitchen table on a Saturday morning. The scope: replace the furnace and coil, add central air, replace a 30-year-old cast-iron boiler and its near-boiler piping, and run a new 240 V circuit to the air handler.
1,055 words, about 5 min