Controls are connected and operable. Shipping bolts, blocks, and tie-down straps are removed. Filters are installed and clean. Drain pan and drain line are installed correctly. Gas line is connected and purged.
Acoustic insulation is present.
Lubricate bearings on fan. Check fan-wheel rotation for correct direction without vibration and binding. Start unit according to manufacturer's written instructions. Complete manufacturer's startup checks. After starting and performance test, change filters.