You close first the hight presure line when the a/c work for cool and you wait for 2 min. the you close and the low side and you turn of your a/c. turn the power supply fuse of and unconnect the cable. you are ready!!!!
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Re: moving ductless compressor unit
If you remove the lines you will loose the charge. (Against the law to let the freon into the air) This must be done by trained mechanic. If you take the lines off take extra care not to get dirt or anything in them. Tape the ends up. A mechanic can pull the vacuum and recharge it.
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My assumption is this is the A/C compressor, First remove the freon for the system, you will need a special tool to disconnect the A/C lines, The parts you will need are new Compressor/w clutch and dryer, freon and refrg oil o-rings for a/c lines new restrictor for high pressure line. remove comp and dryer replace with new and proper amount of oil in compressor, replace high pressure restrictor and o-rings on lines once the system is completely together you will need a A/C vac pump to create a vacuum in the system be for the refrig is added to proper pressure for vehicle Compressor
Sounds like it could be low on freon I believe these units have about 1.5 pounds of freon in them and are critical in not undercharging or overcharging them if it is a freon 410 ac unit the pressures should be about 135 and both lines cold if is low on freon a service tec will need to be called to try to repair the leak if possiable
If possible any refrigerator should be moved in the upright position. The reason for keeping it up right is so that you do not get system oil in the freon drier. If you absolutely have to move it in a horizontal position DO NOT start the unit for about 2 hours so that any oil that migrated into the coolant plumbing and freon drier will gravity drain back into the compressor. If possible position the unit so that the freon drier is above the compressor when the unit is horizontal. The freon drier will have a capillary tube and 2 copper lines on it.
Without refrigeration gauges, you can't check your freon level. You have to check the pressure of the freon, not the level. If you are careful and have a basic knowledge of electricity and moving parts, you can get an idea if you are out of freon. If you remove the lower slotted cover from the refrigerator you will see the condensor coils. This is a radiator that has aluminum fins on the front and will have a fan running behind it. If the compressor is running this condenser coil should be hot to the touch at the top part of the aluminum fins. If the fins are covered with dust and dirt it can cause your cooler to malfunction. Also if the fan is not running the compressor will overheat and quit. If you pull the cooler away from the wall, you can see the compressor in the bottom of the cooler. There are two copper lines leading to the compressor. The small line goes to the condensor coils (the radiator) and should be hot enough to burn your finger if you have enough freon. Also the larger of the two copper lines brings the freon back to the compressor from inside the cooler. It should be cold to the touch if you have proper freon pressure. If both of those two lines feel about the same temperature, either the compressor is not running or you have no freon. BE CAREFUL! There are electrical lines and moving fan blades near the compressor, and some of the tubing gets really hot.
I had the same problem. The mechanic could not get the compressor to take in new freon. It has to do with the car's memory. You have to reset it by disconnecting the hot wire from the battery which for thirty seconds. This resets the cars internal memory, so it won't remember that it's out of freon. Reconnect it turn on the car and turn on the air the compressor will start.
FC IS FREON CHARGE, WHAT YOU ARE GETTING IS A HIGH PRESURE CUT OFF FAILURE. THE LABEL PRESURE IS TEST PRESURE. THE RUN PRESURE ON LOW SIDE IN AC MODE IS ABOUT 65 AT 75 T0 80 DEGREES INSIDE AND ABOUT 200-300 HIGH SIDE AT 75 -85 OUTSIDE TEMP. IN HEAT THE LARGE COPPER LINE BECOMES HIGH SIDE HOT WHEN YOU FEEL IT. IF YOUR FREON IS LOW WILL WILL ALSO GET SHUTDOWN. YOU WILL NEED SET OF FREON GAGES AND CONTACT ME BACK
Attach refrigerant gauges to the refrigerant pressure service valves.Have a valve wrench at hand. Start the unit. Using the valve wrench close"tighten" the high side valve. That is the smaller refrigerant line. Watch your gauge pressure as it falls. When the low side pressure(the large line) reaches "0" pressure,tighten the low side valve to turn it off. Once it is tight shutoff the compressor at the outside disconnect power box. This procedure draws the refrigerant into the outside unit so that you can safely move it without losing or recovering refrigerant.
If you took the door off of the squirrel cage fan for a while the freon gets so cold the compressor cannot pump it. I will trip the outside breaker. Just let me know if during the process did wiring get moved around. Let me know, Sea Breeze
It will definitely escape. In fact, allowing that gas into the atmosphere is kind of illegal, as well as really expensive. An HVAC repairer has the equipment to remove the gas while keeping it trapped, do any plumbing needed to move the unit to it's new location, and then recharge the unit with the same freon (though you might need to add some to account for the additional run of pipe). Also, the electrical box will probably need to be moved.