Heating, Air Conditioning, Fridge, HVAC/2 zone bryant equip. a/c cycling


Hi Joe I have a Byrant 2 zone panel on a Bryant mav 5 ton variable
speed fau. 2 -14 inch supply runs and ample return air single speed a/c the zone control panel has a y1 led. on the face to show that the a/c is activated but even when both stats are calling for a/c
and have not come down to temp the condenser shuts down for 4 or 5 minutes and then starts back up again, could this be something to do with the purge in the control panel or is it some kind of energy saving , the condenser is a r-410a slimline about 10 yr old equip and the line set just got relocated, backed the 40 foot charge back into the unit and did not add or reduce any length of line set  just not familiar with the cycling thing
Thanks Rob


With what info to work with , if they relocated the line set and lost part of the charge while reclaiming it and never  added refrigerant to compensate  if your running on a cooler day and your indoor temperature is cool also you may be tripping on the low pressure switch, once that happens you time out ,usually through the thermostat ,( typically 5 minutes ) then it restarts , and stays running or it may trip out once or twice more. You just may not be under a real heavy load yet .if it does this all the time you would have to jump out your low pressure switch ,for test purpose only, shutting power off to outdoor unit and indoor unit ,while jumping out then run it, if it still trips ,then  call for service.

Heating, Air Conditioning, Fridge, HVAC

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40+ years diversified experience.An HVAC/Refrigeration Self Employed Contractor since 1986. NATE Certifield. Answer questions pertaining to Residential and Commercial Air Conditioning , Warm Air Heating, Heat Pump systems.Mechanical and Electrical troubleshooting of these systems.Be as detailed as possible when describing problem.Packaged unit or split systems.No appliance questions.


Installation and Troubleshooting, Mechanical and Electrical, in following areas, Refrigeration ( Walk In and Reach In Coolers and Freezers ) Commercial Roof Top and Packaged Heating/Cooling ( Natural Gas,Propane, Electric, and Heat Pumps ) Computer Room Air Conditoning Systems,Commercial Residential Packaged and Split Systems Air Conditoning and Heat Pumps.Warm Air Oil , Natural and Propane Gas Heating systems.

Graduated from Private Technical School in 1975. An HVAC/Refrigeration Contractor . Have Unlimited Heating/Piping and Cooling Contractor License.Limited Sheetmetal Contractors License.NATE Certifield. York Certifield Master Heat Pump Technician 1986. Served 33 years combination Active Duty Air Force , Air Force Reserves and Air National Guard in the HVAC/Refrigeration Shop/Mechanical Shop. Troubleshooting/Installing HVAC/Refrigeration Equiptment Worldwide. Retiring in 2003 as a Senior NCO ,and a Mechanical Superintendent.

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