Oxygen Deprivation Limit (ODL)
The refrigerant concentration at which displaced air lowers oxygen to an unsafe level. For nontoxic, nonflammable refrigerants the ODL often governs the allowable charge in a confined space.
The refrigerant concentration at which displaced air lowers oxygen to an unsafe level. For nontoxic, nonflammable refrigerants the ODL often governs the allowable charge in a confined space.