The ”DBF” Series is designed specifically for heat pump or reverse cycle application. External check valves are not required since they are incorporated within the filter dryer shell. The core design filters out contaminant particles down to 25 microns. 100% copper sweat or nickel plated flare fittings. Desiccant core provides reliable and effective, removal of solid contaminants, acid and moisture. Provides three times the filtration as the standard bi-flow. Core is cushioned in fiber gaskets to protect core and to insure trouble-free performance. Powder paint exterior coating surpasses 500 hour ASTM salt spray test and resists corrosion.
Evacuate system / Recover refrigerant per EPA guidelines / Repair or install system as required
For flare fitting filters prepare matting tube end(s) / nuts prior to uncapping filter. Remove filter end caps. Install immediately. Hand tighten nuts, then use wrench to tighten 1/4 turn more. Evacuate and charge system normally. Mark filter with install date, refrigerant type, and oil type.
For sweat-in filters prepare matting tube end(s) prior to uncapping filter. Remove filter end caps. Install immediately. Use wet rag around filter to protect from overheating due to soldering. Evacuate and charge system normally. Mark filter with install date, refrigerant type, and oil type.