#2646 No.1 end A side Exhaust Air Damper ~~~~~ #2646 No.1 end A side Exhaust Air Damper     Replaced exhaust air damper and function test ok,able to open/close. New s/n: 0022  Old s/n: 7306 Not: 2153238 raise to RSW. Done by Loong/Pravin. 23/04/20