If your working time in the PSL room is over 30 min/ N(working people number) -> working mode,
else, quiet mode.

Quiet mode uses only one cooler. Please follow (a) or (b), not (a) and (b). Obviously, the temp setting of a cooler that will be operated should be 22.5 or 22.56.

Working mode uses both two coolers.


 1. '''[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11812|Quiet Mode]]'''
  a. #1 cooler operation mode

   *Close two doors (door btw outside and sound proof room and door btw pre-room and clean room).
   *Operate #1(1st) cooler at 22.5C
   *Open fully the air flow adjuster.

   *Stop #2(2nd) cooler
   *Close its air flow adjuster.

   *Stop KOACHs 2 minute after the coolers operation.

  * #2 cooler operation mode

   *Close two doors (door btw outside and sound proof room and door btw pre-room and clean room)
   *Operate #2(2nd) cooler at 22.56C
   *Open fully its air flow adjuster.

   *Stop #1(1st) cooler
   *Close its air flow adjuster.

   *Stop KOACHs 2 minute after the coolers operation.


 * '''[[http://klog.icrr.u-tokyo.ac.jp/osl/?r=11812|Working mode]]'''

   *Operate both coolers at "23.8C" with fully opening the air adjusters.
   * Operate KOACHs.
   *Open two doors (door btw outside and sound proof room and door btw pre-room and clean room) of the PSL room with 10cm space.

   *The attached graph shows each temp during working mode. "Booth_PSL temp(set inside the clean area)" keeps almost same temp with that before action with short time disturbance.


(The air adjuster is situated at the bottom of a duct of the precision cooler. You can slide a metal plate by hand.)