NO - as air conditioning systems use fluorinated gases as refrigerants, all work on them must be done by professionals holding valid F-Gas certification. There is a range of different qualifications and certifications that apply for this, so it's always best to ask someone who is qualified to do this.
Haltwhistle
Haltwhistle is a village and civil church in Northumberland, England, 10 miles (16 km) eastern of Brampton, near Hadrian's Wall. It had a population of 3,811 at the 2011 Census. Stone-built homes are a feature of Haltwhistle. It is just one of 2 settlements in Great Britain which assert to be the precise geographical centre of the island, along with Dunsop Bridge in Lancashire, 71 miles (114 km) to the south. A selecting ward with the exact same name still exists. This ward extends from Hexham southern up the R. South Tyne and has a total population taken at the 2011 Census of 4,832. Haltwhistle was a market town for the exchange of regional goods. In the 18th century two Quakers established a baize manufactury as well as there was a weaving facility. On the Haltwhistle Burn were fulling mills, dyeing as well as spinning mills. A walk along this stream to the Roman Wall, shows that it should have been a hive of industry with quarries, coal mining as well as lime burning kilns. The Directory of 1822 (Pigot) gives a whole range of craftsmen, store owners and traders-- 60 in number, including manufacturers of obstructions. The regular market was held on Thursdays and also there were fairs on 14 May and 22 November for livestock and also sheep.
