HART has a wide variety of equipment for students to work on, including the
- 90+ updraft systems
- horizontal gas and electric system in conventional split and heat pump systems
- State of the art 19+ SEER Trane systems
- new Carrier Infinity System
- several Puron R410A Bryan and Carrier systems.
A "Ductless" water cooled system is being developed to be included in the curriculum.
There are a number of window units with programmed faults which students diagnose and repair  |
Condensers, usually found outside, contain compressors and work in concert with the air units and evaporators inside the building (below).  |
The condensers connect through a wall to the air handlers... |
...which house the blower motor, the furnace assembly and the evaporator |
Another view of the inside units (click to enlarge)  |
HART 2441 Commercial A/C students work on a 20 ton Lennox rooftop unit |
Students in HART 2442 Commercial Refrigeration work on a commercial refrigerator/freezer. |
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Commercial walk-in Freezer/Cooler "Einstein" programmable Controller panel...  |
...is next to the door of the walk-in freezer.  |
The commercial unit's evaporator is in the freezer. The copper condensate line at the bottom is wrapped with a heating element to prevent the water from freezing before it leaves the freezer. This unit operates at -35 degrees F.  |
Evaporator unit and fan motor on the refrigerator side  |
Refrigerant is recovered with the "stinger" then a vacuum pump removes the noncondensibles such as air and moisture. |
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Bacharach "stinger" recovery unit with service cylinder (click to expand)  |
The filter collects dirt and other non condensibles such as air and moisture  |
Vacuum pump evacuates the system down to 29.9 inches vacuum. |
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Electronic scale, which is accurate to within 1/4 ounce, is used to weigh and dispense refrigerant charges  |
Refrigerator being serviced by technician - note temperatures of freezer and refrigeration sections  |
