Fix surgery chiller indicator(3) on metasys to show correct status. Med air and gas readings. Plant Rounds and readings. Warm up boiler 3. While warming up boiler 3 there was a quick and short alarm at the console and the pwc started flashing showing a lockout on boiler 3 and quickly cleared itself. I didn’t have to acknowledge or silence anything at the boiler, it stopped by itself. Reset pwc OK. Note: Boiler never shutdown for this alarm which it normally would do – must have happened too fast. Blow down boiler 1. Add salt to tanks. Finish graphic for Ann Arbor and WMAB Generators. Find it in the Generators…
Plant rounds and readings in the Energy Center. Warmed #3 Boiler, Blew down #1 Boiler and checked LWCO. Tested boiler water and cooling towers water. Med gas Manifold readings. Metasys Checks and Cold and/or warm calls. Changed Chiller Selection to 2, 3, 1, 4, so we can bring chemicals of yard tower up. Added 2 gal. of Halochlor to Yard tower. Electrical shut Down for surgery area, resetting equitment after it was completed. worked on P.M.’s.
Noticed while doing pm”s in MER 26 that domestic cold water was hot. Found By-pass for backflow preventer that serves water heaters was opened. Closed one side, water cooled down. Checked water flow in East tower, normal. Showed Cori what I closed just in case, don’t know why this was open.
Blowdown boiler 1 and warm up boiler 3. Monitor metasys – adjust/dispatch as needed. Plant rounds and readings. Utility readings. Check and record tower dip slide tests. Work on metasys graphics – North tower, generators. Work on engineering blog. R & L Carriers picked up empty eldon drums. General cleaning.
Plant rounds and readings in the Energy Center. Warmed #3 Boiler, Blew down #1 Boiler and checked LWCO. Tested boiler water and cooling towers water. Med gas Manifold readings. Metasys Checks and Cold and/or warm calls. Added 3 gal. of halochlor and 1 qt. of defoamer to the Yard Tower. Added 1 gal. of Halochlor to the #3 Tower. Added sulfite to Boilers.