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This is true as long as it is not a heat pump. Make sure they replace the piston (metering device to match the outdoor units required piston size. Or if the indoor coil is metered via TXV, it will automatically meter the refrigerant flow. If you are mismatching a system, make sure an acid test is performed on the old refrigerant and take appropriate measures with the new system if the test shows positive acid. They need to definitely install a liquid line drier. Hope this helps.
Hi, if you are planning to change this system out, please stay with a gas fired central system as compared to a heat pump, they are much more cost effective. Heat-pumps have so many problems as there are more parts on them to go wrong. The compressor and condenser fan motor run year around as with a heat-pump they use what is called a reversing valve that changes the flow of freon making the indoor coil the outdoor coil and the same with the outdoor coil becomes the indoor coil in the winter season. I can recommend excellent gas fired units compared to the Brivis unit you have that is much more cost effective, such as the Bryant, Carrier, Goodman. I would go with a Bryant and talk to a dealer. Stay away from a heat-pump no matter what they tell you as I have worked on them for many years and if you have gas available, stay with gas. You will heat your home much faster and save on electricity as this heat -pump units need heat strips for back up heat as they can't keep up the temperature with out them. I hope I have been of help to you on this, and you will be kind when rating me as I know you will. Please contact a Bryant dealer as you will not regret it. Sincerely, Shastalaker7 A/C, Heating, & Refrigeration Contractor.
have you used the weed eater out by the condensing unit could be short in thermostat control wiring to outside unit or a stuck contactor in condenser control circuit try these first then if not there in furnace control circuit at board that jockeys between air and heat remove thermostat wires from board remember thier location bet it stops.
AIR HANDLERS DO NOT ENERGIZE REVERSING VALVE , THE THERMOSTAT DOES THE JOB THROUGH THE O OR B TERM TO THE OUTSIDE UNIT. IF YOU HOOK UP TO O TERM AND HEAT COMES ON WHEN YOU SET AC ON THEN SWITCH TO B TERM ON STAT. YOU SHOULD HAVE O TERM ON CONDENSER OUTSIDE AND YOU USE ORANGE WIRE IF YOU HAVE ONE. IF NOT USE UNUSED WIRE IN 6 WIRE STAT HARNESS.
I have to start with the wire diagram. Find the circut board. Look for any connections marked to the thermostat and follow to what they go to. See what other controls it has pressure sw, tenp sw, ,,, then decide how its suppose to work.
This may not help you but it is a direct answer to your request. If you need more infor I need more info and spicific on what you want to check.
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