If you run a short lineset about 10 feet do you have to take refrigerant out to compensate for the short run

Are you trying to convert 1,500 square feet to linear feet for wood flooring? You will need to know the width of the planks you are going to use in order to complete the formula; so multiply square feet times 12 and divide by the width of the wood (in inches) to get lineal feet.
Add 10% to that figure to compensate for waste cut outs and mistakes

the refrigeranterant charge is stamped on the unit data plate in ounces of freon. take this number and multiply it by 16 and get the pounds and the decimal point will need to be converted back to ounces. example 138 ounces equals 8.625 lbs of freon which is about 8 lbs and 8 0r 9 ounces. this is for a 15 foot lineset. measure your lineset and substract 15 , then take this number and add .6 per foot. .6 ounces of freon per foot of refrigerant line over 15 feet. you will have to use a quality digital scale to weigh in this total charge

Trouble Code: P2096

Downstream Fuel System 1/2 Lean

Trouble Code Conditions: Engine running in closed loop mode. Ambient/battery temperature above 20F (-7C). Altitude below 8500 feet. Fuel level is more than 15%. If the PCM adds downstream short-term compensation to long-term adaptive, and a certain percentage is exceeded for 2 trips, a freeze frame is stored, the MIL illuminates and a DTC is set.

Possible Causes:


Exhaust leakEngine mechanical problemO2 Sensor has failedO2 Sensor signal circuit or return circuit problemFuel contamination

if you are doing flash photography you will have to limit the shots to a distance of 10-15 feet to get nicely lit pics. also try setting the exposure compensation to +2 to brighten up the pic. Also are you shooting on manual ???

The best way is weigh in a charge. of course the type of unit will come into play as split systems have enough refrigerant factory for up to 15 ft lineset or so, depending on units make etc. If a charge exists already and requires adjusting due to lineset length, or repairs etc, youcan simulate a 95 degree day ambient outdoors by restricting the air flow a bit to artificaially raise the head pressure as do low ambient controls, thus bringing the head to around 270lbs in a r 22 system or ambient plus 30 degrees , converted to prressure, so a 95 deg day plus 30=125 deg converted to pressure is 269 lbs, the indoor air temp being clse to 80 degreees helps, the indoor coil will be 40 degrees cooler than the indoor ambient if all is normal and design conditions are met by God or you. If the indoors 75, go to a 35 d
eg coil temp this is ball park, as the subcooling (15 deg)and superheat (10 at the evap coil, 20 at compressor) will need to be monitered along with amp draw and Delta T or temp differntials suply vs return.

@50/300 I assume it's a med. temp R-22 pump down walk in. Head pressure sounds a little high, probably been overcharged to compensate for a restriction in the metering device (or malfunctioning TXV). Check the solenoid (if pump down), metering device, and filter driers first. If that fails, lineset restriction or non-condensables/water in the charge would be next on my list.

Hello, if the lineset is accesible and not obstructed by anything i would recommend replacing the lineset, this is better because r-410a operates at higher pressures and the oil that mixes with the refrigerant is hygroscopic meaning abosrbs moisture very easily. Now if the lines are very hard to get to then you can flush the lines out with a product called pro flush that they sell at heating and cooling stores. But always better to replace the lineset.

an FC fault on a Grunaire is typically a defective PFC board in the outdoor unit or a Grossly overcharged system, where the drive cannot overcome the standing pressure to start the system up...

the ONLY CORRECT way to charge one of these units is to WEIGH in the charge..

the Label on the side of the unit will give you the correct charge amount.. this is for 25 feet of Lineset on Each indoor unit... typically on a 9 or 12k btu indoor unit (1/4" liquid line) you will add 0.7 oz refrigerant extra per extra foot of lineset.....

the PFC board failure is a very common failure on all of the grunaire / chigo built units...

it sounds like the compressor insides are loose and you will be needing a new compressor, but just check and make sure the rubber mounting feet on the outer compressor base where its mounted to the refrigerator base are all tight and the rubber shocks are all good

Normally the maximum lineset that can be used with a residential air conditioning unit is 50 feet. If the lineset is longer than this, it must be sized accordingly and without the model and serial number I am unable to do this.