the exh is used to heat a swimming pool and the flow of steam is correct between the boiler and the inlet of the exchanger. Steam does nto flow through the exchanger however. Any ideas as to why this may occur?
- calcium build up internal to the heat exchanger(if it's old) De ionized water in the boiler system would prevent that after cleaned out really good. - busted seal from a valve transfered in through the steam flow, blocking a portion of the tubing of the
Depending on the quality of the steam, it may have deposited minerals in the exchanger tubes and blocked them off. Depending on the pressure to drive the steam through the tubes, there might not be sufficient to do the job if the tubes become full of steam condensate. How is the steam flow controlled? Do it use a control valve? steam trap? or is it just open to the atmosphere?
