X1 Hot Water Boiler. X1 DHW indirect tank. X3 AHU Perform a tune-up and cleaning to help ensure reliable and safe operation. Inspect for cracks & deterioration of Heat Exchanger. Check and clean Burners, brush and vacuumed-ok Check and clean flame sensor and ignition Assembly-ok Check Safety Controls-ok Check electrical wiring and components-ok Check water feeder-ok Check back flow prevent-ok Check expansion tank-ok Check relive valve-ok Check Gas valve & Gas Line-ok Check Combustion Air, Flue pipe-ok Check Temperatures & Water pressure settings; Performance-ok Check and run Thermostats-okay Check circulation pumps-ok Hydro air handlers. - Open air handler cabinet doors - Vacuumed inside of air handler cabinet, clean, and clear - Chemically cleaned and treated indoor coils - Secured and inspected indoor electrical wiring and components - Clean and inspect Hydro coil for leaks or corrosion- okay - Inspected air filter replaced X3 14x24x1 X1 20x30x1 - Polished and wiped down inside of