IAPMO UMC MPE case studies
IAPMO UMC MPE · Put your knowledge to work in context.
The IAPMO Uniform Mechanical Code Mechanical Professional Examination (UMC MPE) is a code-competency credential for mechanical trade professionals who design, install, inspect, or administer HVAC and refrigeration work governed by the Uniform Mechanical Code. It is typically pursued by mechanical contractors, journeyman and master mechanics, plan reviewers, combination inspectors, and code officials who need to demonstrate working command of the UMC rather than general trade skill. The IAPMO UMC MPE case studies are 5 cases and about 2,516 words.
1Grease Duct Clearance and Fire Damper Through a Rated Assembly
A 40-seat restaurant installs a Type I hood over a six-burner range and a charbroiler. The hood exhaust is 2,400 cfm; the replacement-air unit supplies 1,800 cfm.
538 words, about 3 min2Common Venting and Combustion Air for a Condensing Boiler and Draft-Hood Water Heater
A 100,000 Btu/h condensing boiler, Category IV, and a 50,000 Btu/h natural-draft water heater are installed in a 10 ft by 12 ft mechanical room with a 7 ft ceiling. The room has two louvered openings to a corridor: one 12 in by 12 in opening 6 in above the floor and one 12 in by 12 in opening 6 in below the ceiling.
532 words, about 3 min3Refrigeration Rack: Suction Riser, Machinery Room, and Relief Discharge
A supermarket rack using R-448A serves a -20 F frozen-food case and a 35 F dairy case. The frozen-case suction line is 1-1/8 in copper with an equivalent length of 80 ft, including a 14-ft vertical riser.
483 words, about 2 min4Hydronic Boiler Fill Pressure, Expansion Tank, and Relief Discharge
A 500 MBH cast-iron boiler serves a 60-ft-tall building with 1,200 ft of 1-1/4 in fin-tube baseboard. Design supply is 180 F and return 160 F.
505 words, about 3 min5Fuel-Gas Piping Test and Regulator Vent Clearance
A 2,000,000 Btu/h rooftop unit and a 400,000 Btu/h boiler are supplied from a 2-psi natural-gas main. The steel piping is 2-in Schedule 40 for 180 ft, then 1-1/2 in for 25 ft to the boiler.
458 words, about 2 min