Im fettling my GSHP ground loop. Ive never needed to service it in 12 yrars, but whilst on holiday last year it lost most of it pressure-presume seals dried up with no use. Its limped along but has stopped working, so no hot water apart from emergency heater coil.
The original installer has now moved onto different pastures-referred me to another company in London who wanted £500 just to come out. Sod that!
Ive decided to upgrade the system with a expansion vessel, feed loop and air bleed off. Spares have arrived from Screwfix, so next few days I will build up this kit
Hope to get another 12 years without hiccup
The original installer has now moved onto different pastures-referred me to another company in London who wanted £500 just to come out. Sod that!
Problem Ive had is testing and refilling. The system is USA built and uses an odd set of hose connection with tiny thermocouple inspection ports. After a bit of toing froing to local plumbers merchant I cobbled together a fill setup using a inflation needle from football pump. Ive now added a air bleed valve which has allowed me refill system with water and bleed air out. Thank goodness its holding pressure now
Ive decided to upgrade the system with a expansion vessel, feed loop and air bleed off. Spares have arrived from Screwfix, so next few days I will build up this kit
Hope to get another 12 years without hiccup