Job memo on MOEM facility monitoring system, Feb 1999

NYC 9/11 Public Portal Document

02/16/99 17:15 FAI 2122190256 swanke Hayden covvFrr 12)002 O2/18/90 13:00 Elix 2X2 738 3919 C03ENTINI ASSOCIATES ®002/QQ3

COfiENnWASSOCHATBSULr ■ TWO FENN. PLA2A, PIEWYORK, NY Mill" MMiMfOOa FAX11MIW7«6

JOB MEMORANDUM

TO: Mr. Michael W. Maybarun SUBJECT: Mayor's Office of Emergency Management FROM: Vai Lemeshev JOB NO: 1854

CC: Mr. Joe Aliotta, SHCA DATE: February 12,1999 Mr. Marlin Schneider, Ambassador Revised February 16,1999

Ambassador Construction Corp, requested our partioipatioD in the field meeting to review scope and coordinate work associated wilh die facility monitoring system and to be pecfoimed by Johnson Controls, Die.

Meeting was scheduled and took place on February 11,1999, but representative from Johnson Controls, Inc. was not in attendance.

As per request ofMr. Gieo Fimeuto we have reviewed operation at air conditioning equipment serving the Lan room.

The foUov/ing are our finrKnga and lecooisiendatioiis:

At the time of scnv^ all three (3) air conditioning units were in operation.

It should be noted, that maxinrum two (2) AC units shall be in opCTAtioftsuxaittwieously . one unit is a stand-by and should be activated only'vdien one ofdie running units friils or when Wgli room temperature is detected.

Monitoriag of the opciation of AC units and room conditions is die work to be pafonnod by Johnson Controls Ino.

Mechanics from the Aback Entnpdses woe on die job site setting-up and adjusting die units. They wete verbally instructed to shut-down one AC unit (AC-2) and to set one unit (AO3) at 72" F and second one (AOI) at 75" F. Ai^ustablc vanes at die discharge grilles should, be adjusted to direct sir horfcrontaliy and away from any obstruction such, as equipment racks, cable trays, etc. to prevent short circuiting of die air and, as a result, short circling of the compressor and unit shut-dovm without aiqr remote alarm.

It was mentioned by Mr. Glen Pimento that not all the communication eqaipmeut, scheduled for installation^ is actually in the LAN room but OEM is considering to install additional equipment (UPS). There Is sufficient capicliy of the AC equipment in die LAN room to handle the existing and flitura load.

NYC-WTC_000167652