Two additional technical sessions have been added to the RSES 72nd annual convention later this month in Bloomington, Minn.

“Being Green Starts with Proper Service” and “High Performance Heating and Chilled Water Plants Using Heat Recovery Chillers” have been put on the agenda by officials for the Refrigeration Service Engineers Society.

The convention will take place Oct. 27-31 at the Hilton Minneapolis-St. Paul, near the Mall of America.

The “high performance” seminar will be hosted by Richard D. Hermans, P.E., of McQuay International.  He will discuss energy conservation and chiller specialization.

Rich Hoke, a RSES certified master specialist with the city of Elgin, Ill., will lead the two-hour “green” seminar.

For details, call Jean Birch, the RSES’ conference and seminars manager, at (800) 297-5660  Ext. 4046, or fax to (847) 297-5038; e-mail at