westray7
07-12-2008, 05:14 PM
Hi
I have years of experience in plumbing and electrics but little in refrigeration. We have a 2.5kw Markus Ground source heat pump. 10 years old approx. The company went bust years ago. We are on an outer Orkney (off Scotland) island so any engineer visit is expensive. Hence usually need to self fix or replace.
Unit runs but....input to condenser is very hot but very little heat goes into the water. Expansion valve freezing up. Following advice, I have wound its adjustment in and out in case it had stuck. No improvement.
Unit has no gauges etc. There are two gas connection points (for applying gauges also?)
Please any suggestions.
I have years of experience in plumbing and electrics but little in refrigeration. We have a 2.5kw Markus Ground source heat pump. 10 years old approx. The company went bust years ago. We are on an outer Orkney (off Scotland) island so any engineer visit is expensive. Hence usually need to self fix or replace.
Unit runs but....input to condenser is very hot but very little heat goes into the water. Expansion valve freezing up. Following advice, I have wound its adjustment in and out in case it had stuck. No improvement.
Unit has no gauges etc. There are two gas connection points (for applying gauges also?)
Please any suggestions.