Diagnostic, HVAC Sales, NCI Article Library, Performance-Based HVAC
Nearly all systems are in need of air-side and combustion diagnostic, but getting permission to test the systems, and getting the customer to agree to pay for repairs requires more than technical genius. We asked a number of successful NCI Performance-Based...
Airflow, Airflow Testing & Diagnostics, Best Practices, Diagnostic, HVAC Service, NCI Article Library
Ok, so you've trained your techs on how to test initial system performance with HeatMaxx™. You've got the forms and the right tools. So how do you generate leads form your service calls, and just as important, how do you follow up a lead from a low-scoring HeatMaxx™...
Carbon Monoxide, Combustion Safety, Diagnostic, Installations, NCI Article Library
Combustion air testing is performed using a draft gauge and a CO analyzer. When the draft in the flue of an appliance is low or below -.01" to -.02" W.C. and when CO reading are rising, combustion air problems are present. Carbon Monoxide diagnostics consistently...
Carbon Monoxide, Combustion Safety, Installations, NCI Article Library
The procedure and purpose for adjusting barometric dampers for gas appliances is completely different from the reason you adjust barometric dampers on oil equipment. Let's take a look at each method to get a clearer picture of what we're trying to accomplish. OIL...
NCI Article Library, Static Pressure Testing, Technician Tips
The quest for higher efficiency cooling equipment is hitting a barrier. Unsuspecting installing contractors are being handed hidden liability that is difficult to identify and resolve. Certain cooling coils are being built for the highest possible SEER rating, but...