WebHX Digital Recirculating Chiller Installation, Operation, and Maintenance Manual. NESLAB Manual P/N 002002 Rev. 08/20/97. NESLAB online. Product Service Information, Electronic Catalog, Applications Notes, MSDS Forms, e-mail. (603)427-2490. Set modem to 8-N-1 protocol, 1200 - 14400 baud Voice Info: (800) 4-NESLAB Comments on this manual can …