1x) Gas water Boiler. 1x) Indirect tank. 2x) Airhandler units with Hydro coil. Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger. Check and clean Burners an heat exchanger- ok, vacuumed-ok Check and clean thermocouple and ignition Assembly-ok Thermocouple was replaced on this occasion. Check Safety Controls-ok Check electrical wiring and components-ok Check Gas valve & Gas Line-ok Check Combustion Air & Exhaust-ok Checked GVD- Vent Damper-ok Check Temperatures & Water pressure settings; Performance-ok Check Radiant Heat system-ok Check and run Thermostats- operating well at this moment. Check circulation pumps-ok Check for water leaks- no leakage at this moment. Run and monitored for good operations. All zones are fine supply and return lines getting hot. Perform for check Indirect hot water tank. Check for water leak, customer knows that the tank has an internal leak at this moment. Check control temperat