Dear Friends

I've been working on a TES water-water heat pump manufactured by TES model 25-1 R407 2kg.

The current problem is that the evaporator is tube in tube and has split, causing water to leak everywhere. It's completely inaccessible without disconnecting everything and lifting the unit.

I think it's split because of problems with the source water pump, no flow and therefore low pressure, causing the water to freeze.

I think there's every chance the fridge pipes inside it will have been damaged as well, and the whole evaporator will have to be replaced.

I had it working for a few days but it's gone off again, the source water is running OK so I suspect gas leak now.

TES have gone bust.

Does anyone know where I can buy a suitable replacement or have any advice?

Thanks