Lab Equipment

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.
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.
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.	Digital vacuum gauge used to determine the micron evacuation level
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