NATE Ground Source HP Loop Installer case studies
NATE Ground Source HP Loop Installer · Put your knowledge to work in context.
The NATE Ground Source Heat Pump Loop Installer certification validates the knowledge and skills required to install the underground loop systems that exchange heat with the earth for geothermal heat pumps. It is designed for technicians, installers, and contractors who work on ground-source loop fields, including horizontal trenches, vertical boreholes, and pond loops. The NATE Ground Source HP Loop Installer case studies are 5 cases and about 2,213 words.
1Vertical Loop Sizing in a Tight Wet-Shale Lot
A 2,800 ft² house has a calculated heating load of 48,000 Btu/h and cooling load of 34,000 Btu/h. The lot is 0.25 acre, with a 15 ft rear setback and utility easements that leave a 30 ft by 40 ft drilling area.
389 words, about 2 min2Horizontal Loop Depth in Seasonally Frozen Clay
A 1,800 ft² single-story ranch has a calculated heating load of 36,000 Btu/h and a cooling load of 24,000 Btu/h. The lot is 100 ft by 140 ft, with a septic field occupying the south third.
512 words, about 3 min3Butt-Fusion Pressure Test in Cold Weather
A contractor is installing a 2,000 ft² shop loop with 1.25 in SDR-11 HDPE. Six butt-fused joints are made in an unheated trailer at 28°F; the pipe has been stored outdoors without end caps.
463 words, about 2 min4Four-Borehole Reverse-Return Header with Air Lock
A four-borehole vertical loop serves a 6,000 ft² office. Each borehole is 300 ft deep with a 1.25 in U-tube; the vault contains 2 in supply and return headers piped reverse-return, a flow center, and isolation valves for each circuit.
428 words, about 2 min5Glycol Concentration and Flush-Water Disposal at an Occupied School
A 6,000 ft² school addition has an eight-borehole vertical loop, each 350 ft deep, 2 in HDPE, with a calculated system volume of 320 gal. The design loop minimum temperature is 20°F, and the manufacturer requires freeze protection at least 10°F below that minimum.
421 words, about 2 min