Get your A/C checked at a local shop or check it yourself? Freon will need to be added by someone. : Adding freon or topping off a cars A/C system is the most common task performed to restore performance and get cold air blowing again. However, adding refrigerant isn’t always the solution for car air conditioning problems – troubleshooting may be required before just charging a car AC system. There can be many other things wrong besides a system being low on refrigerant. To diagnose/troubleshoot problems, an A/C manifold gauge set is needed to read high and low side pressure readings. Avoid adding refrigerant with a simple charging kit like the ones sold at parts stores. Don’t add any stop leak, this can cause problems in the compressor, expansion valve or condenser. The image above was taken at Moog and US Hwy 19 in Tarpon Springs Florida, it made me laugh. The sign says “Your wife is hot! She wants her A/C fixed, let us check it for free”. For some help taking care of your AC problems yourself continue reading.

This is where it starts to get serious. Keep in mind that using an A/C gauge set and seeing BOTH high and low side readings can help in diagnosing the problem when you know what to look for. First, on a 134A system the high and low side service ports are different sizes. AC gauge sets have color coded hoses, the blue color coded hose has a connection that fits on the low side service port and the red hose has a connection that will only fit onto the high side. installation of air conditioning unitsThe yellow hose won’t hook up to anything if just checking the readings; ac window unit fixit can be used to connect to a vacuum pump or attached to a refrigerant can or tank.ac heater wall units *Make sure the condenser fan comes on when the readings are being checked.

Below are normal car AC pressure readings with 134A. * Normal readings on high and low side with AC OFF (static pressure) – Depends on outside temperature, but normally is between 80-105 PSI * Normal low side reading with AC on high-speed and MAX & engine at 800-1000 RPM’s – Ranges from 25-35 PSI – Note that on many Chrysler products a normal reading on the low side may be 15-25 PSI * Normal high side reading ranges from 200-350 PSI Don’t assume that if adding little Freon is good that adding allot is better! Overcharging just a little can decrease the performance of the system and possibly damage the compressor. Additional Car A/C Info – Troubleshooting Gauge Readings With the AC on the coldest setting, use a thermometer in a middle vent. Normal vent temperature readings will vary depending on the (ambient) outside temp. The vent temperature should range from around 42-55 degrees in my experience. If normal gauge readings are obtained and the vent air is cold – STOP don’t overcharge the system.

The only proper way to remove refrigerant is with a AC recovery machine so if this is being done at home I can’t emphasize enough NOT to over-charge the system. And actually the best way to insure the proper charge is in a system, is to use an AC machine to recover the freon and then evacuate and recharge the system with the correct amount. Most cars have the factory specified amount on a decal under the hood. See the next page for gauge readings and images. Continued on Page 2We produce service equipment for the charging and maintenance of air-conditioning systems in cars, heavy goods vehicles and agricultural and marine applications. Benefits with Luvata's A/C Service Equipment: Comply with European safety standards Ergonomic design for easy use A/C Service Equipment product line: Tronic HD S Futura The Silver Futura Diag is our top-of-the range service machine. Silver Futura Diag features: flushing and automatic filling hose emptying functions

software and a database which can be updated through a proprietary memory card a graphic printer with repetition of last report a 100 litre powered system vacuum pump a 27.2 litre internal container available in red, blue, green and silver In response to customer demand and to minimise the impact on the environment, we have also included a gas in/out monthly report with this machine. Ice Star is a machine designed for car A/C systems that employ new refrigerant 1234yf and, with a different configuration, for installations that operate with R134a. The Ice Star fully complies with European and American standards governing safety and environmental issues. Thanks to a meticulous design and to carefully selected components, the Ice Star guarantees maximum performance and quality. In addition to the features included on the Silver Futura Diag model, the Ice Star also offers: 3 possibilities of oil injection (PAG; oil container with quick coupler;

POE for maintenance of hybrid vehicles) standard USB port for database update. Wi-Fi and Ethernet upon request wide range of extras. Available from January 2011. The Business Futura is a semi-automatic system which performs recovery and recycling, oil separation, vacuum leak testing, oil injection and R134a refrigerant refilling. It is not only stylish but practical; it is easy to use and easy to move, even over rough ground. 80 mm diameter manometers The Tronic S Futura is a strong, reliable and technically advanced machine. It can be used either manually or automatically to perform recovery and recycling, oil separation, vacuum leak testing,  oil injection and R134a refrigerant refilling functions. It contains a database which does not need updating, which allows the operator to perform accurate servicing according to the car manufacturer’s specifications. Tronic S Futura features: four large revolving wheels wide hose storage pocket

available in red, blue, green and silver. The Tronic HD S Futura was designed for the maintenance of large commercial and industrial air conditioning systems. It can be used either manually or automatically to perform recovery and recycling, oil separation, vacuum leak testing, oil injection and R134a refrigerant refilling functions. Tronic HD S Futura features: 4,000 mm charging hoses a 226 litre high flow rate vacuum pump a 40 litre internal container The Logic S Futura is a tough machine, reliable and easy to use, with alphanumerical display. Fully automated for functions of recovery, recycling, air purge, oil drainage and gas charging, it offers manual oil and tracer injection operations. Logic S Futura features: 3,000 mm charging hoses We can supply all the parts and accessories needed to accompany the service equipment, from oil and leak detection liquid to hoses, filters and safety kit. Click the "contact us" link next to the main image for contact details.

PART NUMBER 7000260035DESCRIPTIONLeak detection liquid 12 pcs 7,5 ml SAE J2297 PART NUMBER 7000260057DESCRIPTIONLeak detection liquid with measure bottle 250 ml SAE J2297 PART NUMBER 7000260460DESCRIPTIONUV dye injector PART NUMBER 7000260174DESCRIPTIONLeak detection kit (lamp 60 W, glasses, leak detection liquid 12 pcs) PART NUMBER 7000260490DESCRIPTIONFlexible lamp 36 W with glasses PART NUMBER 7000260420DESCRIPTIONPAG oil with leak detection liquid ISO 100 250 ml PART NUMBER 7000260430DESCRIPTIONPAG oil ISO 46 250 ml PART NUMBER 7000260440DESCRIPTIONPAG oil ISO 100 250 ml PART NUMBER 7000260450DESCRIPTIONPAG oil ISO 150 250 m PART NUMBER 7000260470DESCRIPTIONOil injector PART NUMBER 7000260320DESCRIPTIONCondenser cleaner spray PART NUMBER 7000260310DESCRIPTIONEvaporator antibacterial spray for bad smells PART NUMBER 7000260330DESCRIPTIONUV dye remover spray PART NUMBER 7450007200DESCRIPTIONR134a flushing kit PART NUMBER 7000260510DESCRIPTIONNitrogen flushing kit

PART NUMBER 7503100005DESCRIPTIONNitrogen tank PART NUMBER 7000260480DESCRIPTIONA/C leaks sealant filter PART NUMBER 7000260210DESCRIPTIONRetrofit kit R12/R134a PART NUMBER 7000260228DESCRIPTIONRetrofit kit connection hose PART NUMBER 7000260370DESCRIPTIONDigital thermometer PART NUMBER 7000260360DESCRIPTIONThermometer with hygrometer for diagnosis PART NUMBER 7400003500DESCRIPTIONManometers manifold R134a R404a R507 R407c PART NUMBER 7450090040DESCRIPTIONRefrigerant tank adpters PART NUMBER 7000260340DESCRIPTIONStandard O-ring kit PART NUMBER 7000260350DESCRIPTIONSpecial O-ring kit PART NUMBER 7000260410DESCRIPTIONFin straightener PART NUMBER 7000260400DESCRIPTIONSchroeder valve remover tool PART NUMBER 7450091111DESCRIPTIONSafety kit PART NUMBER 3281220108DESCRIPTIONMeasuring container 240 ml PART NUMBER 7601992000DESCRIPTIONA/C plants data base PART NUMBER 7450000836DESCRIPTIONHP quick coupler PART NUMBER 7000260520DESCRIPTIONHP BP quick couplers straights

PART NUMBER 7450000834DESCRIPTIONLP quick coupler PART NUMBER 7000260530DESCRIPTIONAdditive hoses kit HP BP 2 m PART NUMBER 7000100037DESCRIPTIONVacuum pump oil 0,5 Kg PART NUMBER 7420000218DESCRIPTIONHeating belt for tank 10 Kg PART NUMBER 7420000215DESCRIPTIONHeating belt for tank 20 Kg, 35 Kg PART NUMBER 7301500140DESCRIPTIONThermal paper 58 mm 4 pcs PART NUMBER 7450091150DESCRIPTIONDust cover PART NUMBER 7450091170DESCRIPTIONDust cover FUTURA PART NUMBER 7450000250DESCRIPTIONOil calibration weights kit PART NUMBER 7450000275DESCRIPTIONRefrigerant calibration weights kit PART NUMBER 7000260290DESCRIPTIONLiquid spray to wash equipment Luvata lands in Dubai with ISC products Logic S Futura: the 5-star semi-automatic AC system New Logic S Futura: Systems’ Answer to the Economic Slowdown New addition to air-conditioning systems: Tronic S Futura Luvata’s ISC Systems promote functional tests as a means of competitiveness