Navien 240a2 Tankless Water Heater Upgrade Install Turned water off to tank before beginning Confirmed the tank was fully isolated and the gas was off Disconnected water supply lines Disconnected gas flex line Disconnected vent piping Removed tankless from wall and will be disposed of back at shop Unboxed new Navien 240A2 natural tankless water heater Prefabricated all attachments to bottom of the tank including tankless service kit In garage made all modifications to water, gas, venting, and ran new T&P and condensate drain pipes outside Hung tankless on bracket and bolted to the wall Soldered new 3/4’’ copper male adaptor Connected Hot, Cold and Recirculating Water Connections to bottom of Tank Turned water on and filled tankless while purging of air (NO LEAKS) Connected new 3/4’’I.D. Gas flex Turned gas on (NO LEAKS) Connected to existing condensate drain with new half inch PVC Ran 3/4’’ cpvc temperature and pressure relief valve discharge Connected to existing condensate drain