HVAC Coil manufacturers can over emphasize the need to designate left or right hand. The different reference points used can be intimidating and confusing. Often times, it just doesn’t matter.
Do you need to specify a left or right handed steam HVAC coil?
Not generally. Most steam HVAC coils are universal. Steam coils are normally 1 or 2 rows deep. This allows you to reverse the piping connections. Ac Unit Lignum