HVAC/R system contaminant removal solvent having N-propanol and flame suppresion additives, and method for flushing HVAC systems using the solvent
AssigneeMainstream Engineering Corporation
InventorTed J. Amundsen
Life of this patent
Estimating the term…
Abstract
An aerosolized HVAC/R system solvent for decontaminating HVAC/R components and line sets. The solvent contains 25-90 wt % propellant, and 10-75 wt % solvent mixture which is about 60-95 wt % trans-1,2, dichloroethylene, about 5-20 wt % n-propanol, and an inerting constituent providing a weight percent ratio of the inerting constituent to n-propanol of less than 1.5. The solvent is packaged in a container that is connected to the HVAC/R components or line sets to be decontaminated for supplying the solvent mixture under pressure to the HVAC/R components or line sets.
Claims1
An aerosolized HVAC/R system solvent for decontaminating HVAC/R components and line sets, comprising 30-90 wt % propellant, and 10-75 wt % solvent mixture, the solvent mixture comprising:
- (i) about 60-95 wt % trans-1,2, dichloroethylene;
- (ii) about 5-20 wt % n-propanol;
- and
- (iii) an inerting constituent selected from the group consisting of hydrofluorocarbons to provide a weight percent ratio of the inerting constituent to n-propanol of less than 1.5.
Dependencies are inferred from the claim text.