Monthly Archives: June 2011

Refrigeration Cycle

Whether you are working on a 1½ ton unit or a 50-ton unit, the principles of the refrigeration cycle is the same.  The most important thing to remember about compressors is that they are VAPOR PUMPS. Compressors do not like … Continue reading

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Lament of a Service Mananger

I work for JCI /York UPG I’m a Service Manager and a clerk! Sometimes I’m called a genius. Sometimes I’m called a jerk!   I claim I was once a Technician So when a Job goes “sick”, Everyone comes and … Continue reading

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Microchannel Unit Charging

As many of you know, we are using a condenser coil design called MICROCHANNEL in both commercial and residential. cooling products. With this technology, we have been able to decrease our equipment size while maximizing our SEER ratings on our equipment.  … Continue reading

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DIAGNOSTIC OHMS READINGS PART NUMBER            DESCRIPTION                COLD OHMS 025-32626-000            CARBORUNDUM                 100+ 025-32625-000            NORTON LOW-TEMP         40 TO 400 025-33421-000            NORTON MINI                      50 TO 300 025-30860-000            SMART VALVE                     3 TO 10 -COLD “OHMS” REFERS TO THE READING OBTAINED WHEN THE IGNITER … Continue reading

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