We arrived on site to install a new crown velocity wall hung boiler. We drained down and removed the old NTI boiler. We removed and labeled all piping and wiring and we installed a made a wall to hang the boiler piping and necessary parts. We proceeded to pipe level and adapt the boiler installing honeywell's own valves new magna clean for the system and new taco 10 and grumpus circulator pumps. We piped in the radiant lines and the heating loops. We installed new ball valves on each line for proper purging. We filled checked for leaks and purged out the whole system. We rewired The high and low voltage for the system installing a new neutralizer pump and receptacle. We programmed the system tested all functions everything is operational at this time.