A heat exchanger installed to closely to CPVC piping.
SMALL LEAKS can CRIPPLE VAST SYSTEMS
CPVC (and sometimes PVC) is often specified as piping for hydronic heating/cooling system piping. CPVC works well for this application unless there is a leak in the heat exchanger.
A leaking heat exchanger allows for refrigerant to leak into, and then contaminate, the water in the piping system. Even a small leak will destroy the piping system causing the CPVC pipes and fittings to turn brittle and fail. Once contaminated, the entire piping system must be replaced.
Because of the significant risk of contamination we do not recommend the use of CPVC (or PVC) piping in the hydronic piping application.