Inquiry (采购产品): Air Pressure Switch RH3A9 I am teaching a Heat Pump class at the Community College of Southern Nevada and I'm trying to purchase the appropriate air pressure switches for determining air flow across the coil to establish defrost. Is this RH3A9 your switch? Is it the correct switch? I found it in the Johnstone Catalog, their stock number L36-817. Thanks, Mell Greene **** Hidden Message ***** Howard (Mell) Greene 509 E. Fairway Rd. Henderson, NV 89015 USA Company: Community College of So. Nev. Title: Instructor Phone: (702) 564-0814 Fax: (702) 568-0838 E-mail: greenegoes@earthlink.net **** Hidden Message ***** greenegoes@earthlink.net
