The Lowly Engineer
  • Metasys

    Gen Test, Challenges the OSC

    copy of email to Fred:



    Many problems at OSC today.  You guessed it Gen Test!  When they transferred back they took out a breaker for the 120V transformer that serves OSC.  Everything went down.  Now as the Metasys devices come back up, we are discovering everything moving way to slow.  All the OR reheat valves move very slow and one of the biggest problems of the morning was the steam valve for the heat exchanger.  It would not move but a percent every five minutes, so we lost all the OR’s and they had to delay Surgeries.   We got it all back up with overrides and monitoring.


    Do you think Kyle’s changes got blown out?   I also noticed that there was no reset schedule in, it was at 120* high and low.  I put the “output Low at 140” to try and help the temps come up with a little warmer water. (I actually had it at 160* but we overshot a couple rooms, so I bumped back down).

  • Metasys

    No Cooling for North Tower AHU's 50-30, 51-30 and 48-28

    After this morning’s Gen Test North Tower AHU’s 50-30 and 51-30 alarmed high discharge air temperature.  Cooling valves were not opening, since secondary pumps in M.E.R. 27 were not running.  If you look at METASYS SWCS 1-27 the 5th line from the bottom allows a ‘system reset’ doing so restored pump operation.  Also needed open the CW balance valve to 100% (see 3rd line down in METASYS SWCS 1-27) at first through a operator override, then through an adjust command.  It appears that normally two of the three scw pumps will be running…