Tech Tips

October 12, 2018

IS PRIMARY VOLTAGE SET CORRECTLY ON THE TRANSFORMER?

Many 24v control voltage issues on BOTH commercial and residential systems are caused by not correctly setting up the transformer. Problems can be immediate or may surface may years later. Symptoms may include: low control voltage (24v), unit won’t do anything, contactor not pulling in, not being able to program thermostat, and erratic cooling, heating, […]

October 12, 2018

Caution: Scroll Compressors

  Caution! Scroll compressors (as with any refrigerant compressor) should never be used to evacuate a refrigeration, air conditioning, or heat pump system.  The scroll compressor can be used to pump down refrigerant in a unit as long as the pressures remain within the operating envelope. On a 410a compressor, do not allow pressure to go below […]

October 12, 2018

Caution: Scroll Compressors

  Caution! Scroll compressors (as with any refrigerant compressor) should never be used to evacuate a refrigeration, air conditioning, or heat pump system.  The scroll compressor can be used to pump down refrigerant in a unit as long as the pressures remain within the operating envelope. On a 410a compressor, do not allow pressure to go below […]

October 12, 2018

Caution: Scroll Compressors

  Caution! Scroll compressors (as with any refrigerant compressor) should never be used to evacuate a refrigeration, air conditioning, or heat pump system.  The scroll compressor can be used to pump down refrigerant in a unit as long as the pressures remain within the operating envelope. On a 410a compressor, do not allow pressure to go below […]

October 12, 2018

WHY DON’T I GET A 20F SPLIT ON THE NEW A/C THAT WAS JUST INSTALLED?

When the Arizona “Monsoon” arrives the A/C systems must work harder because it now needs to remove moisture and heat from the air to COOL the home. There are two types of cooling that occur: Sensible cooling and Latent cooling. SENSIBLE COOLING removes the heat, the heat you can SENSE, out of the air. LATENT […]