Articles Tagged with ''troubleshooting and HVACR''

Suction pressure, head pressure, subcooling, superheat, Delta T: Taking all five of these calculations into account is critical.

Refrigerant migration can be damaging to a compressor. The refrigerant migrating back to the compressor can possibly slug the component.

The compressor’s discharge temperature can tell the service technician what is going on inside a refrigeration or air conditioning system.

Advanced insulation packages and HVAC are compatible only when both trades anticipate the outcome of the paired options.

In this month’s troubleshooting situation, a customer has called for service, reporting that their heating system isn’t working.

Some systems we work on and install will freeze. Air conditioning is not one of them.

Let’s look at some helpful “static” pressure tests you can use on the building side of the duct system to diagnose common problems.

We need to be aware of the possibility of severe pressure drops creating an issue for the system and how we analyze its operation.

In this troubleshooting situation we find ourselves dealing with a gas furnace, and the customer has said that “there is no heat at all.”

This article will hopefully save the lives of a few TXVs and the pocketbooks of some customers.