TITLE: 05/26 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY: Work continued today in HAM2 and currently there is still work going on at the test stand on the BBSS.

The LVEA is currently LASER SAFE

LOG:

FAMIS 39862 Vibration Sensors To Gauge Health Of HVAC Fans Site Wide
 

Closes FAMIS 39863. Last checked in alog 89728.

EY_FAN2_470_1 (green) and both EX fans are going through some quiet lapses that were only seen once in the last alog. Nothing is near the "noisy" threshold though.

Plots attached.

TITLE: 04/01 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Planned Engineering
INCOMING OPERATOR: None
SHIFT SUMMARY:

HAM1 & SQZ alignment work continued with focus on HAM1  GV7 was opened for a check down the X-arm for HAM1 work.  Team is still out at HAM1 and GV7 will be open overnight.  Would like to have ISCT1 rolled into place in the morning.

LOG:

• 1406- lvea technical cleaning (nellie.kim)
  • 1526 nellie out
  • 1600-1634 MY technical cleaning (nellie)
• 1420-1520 craning handrails up to the eMod (randy)
  • 1550-1740 clean-up in lvea
• 1511-1645 HEPA Fan swap at h1psl (tyler,eric)
  • 1645-1655 Move to optics lab for termites? (tyler)
• 1529-1657 SPI in optics lab (sina)
  • 1626-1657 SPI in optics lab...but only for about 30min before a meeting (jeffK)
  • restart after meeting - 1915 More SPI before lunch (sina, jeff)
• 1614-1638 lvea walkabout around h1psl (richard)
• 1702-1708 turning off mega cleanroom fans (richard)
• 1703-1717 Opening lightpipe & HAM1 door cloth cover for alignment work (sheila)
• 1706-1714 checking h1psl hvac (post new fan install) [jason]
• 1725-1731 Turning down HAM1 purge (keita)
• 1728 cheta lab (sophie,georgia)
• 1745-1905 susR2 rack near HAM3 + upstairs of CER (fil)
  • 2000-2320 Continue rack & CER work (fil)
• 1757 OPEN GV7 (gerardo.travis)
  • 1808 jordan joining
  • 1825 GV7 OPENED
• 1940-2038 Cleanroom lowering a few inches in West Bay (randy,eric,tyler,mitchell)
• 1953-2148 BHSS laser HAZARD work (elenna,oli)
  • 2049 Oli out
• 1959 Checking green beam at HAM1 (keita)
  • 2013 jenne & sheila joining
  • 2249 Jenne out
  • 2259 sheila out---
• 2007-2148 CHeTA laser set-up (sophie, georgia)
  • 2022-2142 Camilla joining
• 2013 MX weather station work (jonathan)
• 2018 checking on cleanroom team (richard)
• 2053 SPI assy & alignment (jeff, sina)
• 2054-2113 RGA search (gerardo)
• 2104-2110  Running cleanroom roof sock to lvea (randy)
• 2118-2122 fiber feedthru check at HAM7 (travis)
• 2120-2143 EX cleanroom accessory search (randy)
• 2130 PM1 @HAM1 had software WD tripped noticed, and he is bypassing (since there is lots of shaking out there) [dave]
• 2143-2200 Going to PCal Lab for dustmonitors (ryanC)
  • 2226 now going to swap out a cable--heading to CER & then back to PCal lab (ryanC)
• 2155 Betsy & Camilla joining HAM1 team on the floor
• 2216-2316 BHSS alighnment (elenna,georgia)
• 2236 Artemis launch!
• 2256 M7.8 EQ in the south Pacific with S&P waves hitting at 2300 (R-waves due around 2350-0000)
• 2302 Checking on HAM1 team (richard)
• 2307 CHeTA laser HAZARD work (sophie)

For FAMIS #39861: Fans look mostly flat (Corner's FAN5 looks faintly noisier the last 1.5 days).

Closes FAMIS39860, last checked in alog89375

Everything looks as it did during the last check, except MR_FAN4_170_1 looks noisier than during the last check.

"It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife"

- Jane Austen, opening line of Pride and Prejudice

But unfortunately for both us and them, sometimes those men are winged termites in the Optics Lab.

As Elenna and I were cleaning up our work in the back optics table this afternoon, we noticed a few winged termites, and ended up finding maybe almost 10 in total walking around on the floor in the back area of the optics lab near the wall mounted cabinets between the two cleanrooms. We got rid of them but couldn't find where they had come from. I'm wondering if they're maybe coming from an opening under one of those cabinets? Last year this happened but those came out from under the flow benches along the wall - not sure if this is part of that same colony that survived or a different colony.

Closes FAMIS#39856, last checked 89201

Corner Station Fans (attachment1)
- All fans are looking normal and within range.

Outbuilding Fans (attachment2)
- All fans are looking normal and are within range.

Closes FAMIS#39855, last checked 89138

Corner Station Fans (attachment1)
- All fans are looking normal and within range.

Outbuilding Fans (attachment2)
- All fans are looking normal and are within range.

Closes FAMIS#39854, last checked alog88973.

For the CS:

MR_FAN4_170_1 had a slight noise increase a little over a day ago, MR_FAN2_170_{1,2} are both seeing lots of spikes.

For the OUT buildings.

The EX fans all increased in noise around 15:30 UTC this morning.

The vane position of the fan inside air handler 1 at End X was changed from 100% to 70% in order to increase the airflow through the fan. This was changed to more closely match the settings at End Y. End Y temperature trending has been consistent while End X has had moderate variation in comparison. 

Using Vibration Sensors To Gauge Health Of HVAC Fans Site Famis 27735
No big changes here, got a few spikes that are likely DAQ restarts.
 

Closes FAMIS#39852, last checked 88845

Corner Station Fans (attachment1)
- MR FAN1_170 has been relatively loud since it was turned on on Tuesday.
- All other fans are looking normal and within range.

Outbuilding Fans (attachment2)
- MY FAN1_270_1 is quite noisy, but since it's at the midstation I think that's okay
- All other fans are looking normal and are within range.

Closes FAMIS39851, last checked in alog88771

Everything looks as it did during the last check, no real changes over the past week that I can see.

Closes : Famis 27647 Using Vibration Sensors To Gauge Health Of HVAC Fans. 

Vibrometers look fine and don't seem to be abnormally performing yet. 
 

At 9:42p local I received a cell alert declaring a loss of chilled water supply at End X. After remotely logging into FMCS I observed that the lead chiller (1) was in alarm and the CH-1 supply temp was hovering around 54F. I've since toggled the lead lag, and manually forced chiller 2 and chilled water pump 2 on. Given the low outside air temps and the lack of temp demands that vent require, this should suffice until all return from the break where we can investigate further.

T. Guidry

I ran the pumps at the mid stations this morning to exercise the bearings and seals. This will result in an increase to the glycol loop temperatures in the trending. This increase will return to normal by the end of the week. 

At approx 8am the cleanroom above HAM 5/6/7 was powered on in prep for vent activities and initial cleanings. As to be expected, zone 4g temp has spiked. No action on behalf of FAC is required at this time.

T. Guidry K. Stewart N. Sanchez

Famis 27573 Vibration Sensors To Gauge Health Of HVAC Fans Site 

H0:VAC-MR_FAN6_170_1_ACC_INCHSEC seem to be going up in that few days especially the last 24 hours.
This is also the case for H0:VAC-MY_FAN2_270_2_ACC_INCHSEC in the last day saw a fairly large increase in noise.