Installed a new air conditioning system, including a media filter cabinet, heater float switch, thermostat, condenser pad, surge high/low protection, and condenser. Transitioned the new air handler to the existing supply duct and purged it with nitrogen. Pressure tested the system and ensured it held the correct pressures. Evacuated the system, wired up the new thermostat, and restored power. Extended the warranty and emailed the permit.