1. EN-CV status EHN1 Extension Project Jérôme Rodary EN-CV-PJ 2015/08/06

2. Contents 1. Works in progress Cold boxes works (Vertex 1&2, CMS, ATLAS H8) Fan coil for barrack HNA 494 2. North wall dismantling Dismantling works (water networks, ventilation,…) 3. Future design activities Future design activities : GAr extraction system, general ventilation User requirements missing 4. Schedule – CV activities

3. 1. Works in progress Cold boxes Vertex & CMS-RD5 piping networks completed components & instrumentation installed next step : pressure tests (before 2015/08/14) final step : functional tests with the CB connected ! https://edms.cern.ch/document/1527243/0.1

4. 1. Works in progress Cold box ATLAS H8 (Saleve side) piping & components supply in progress VIC done on 2015/08/05 works will be done until end of august 2015 New fan coil for barrack HNA 494 cooling power 6,3 kW procurement launched installation in September 2015

5. 2. North wall dismantling Works completed : firefighting network interception chilled water disconnected barrack HNA 910 mixed water station removed (north wall) old fan coil removed from barrack HNA 494 raw water network interception (several places) Works to be scheduled before end of 2015 : To be removed: ventilation ducts CW pipes & equipments drinking water loop To be rerouted: compressed air loop demi water network raw water network  Specific care to asbestos !

6. 3. Future design activities GAr extraction system : pre-study in progress extraction flowrate to be frozen technical meeting scheduled on friday 2015/08/07 regarding GAr system GAr preliminary 3D model including extraction units & ducts

7. 3. Future design activities Building general ventilation: adding of 2 new ventilation units total flowrate: 210 000 m3/h total heating power: 2 440 kW  WP will be edited Existing ventilation unit inside EHN1 building

8. 3. Future design activities User requirements missing EN-CV needs technical data & requirements for designing the future extended networks as listed below: chilled water (for HVAC purposes) chilled water (for cooling down other some equipments) compressed air raw water demineralized water domestic water (hot and cold) fire fighting system gas extraction (other gases except GAr ?) ventilation for cryostat assembly clean room other… ?

9. 4. Schedule – CV activities TaskStartDuration Install new cooling system Barrack BE-BI in progressMon 04.09.151 day Reroute CMS cold box to raw water in progressMon 20.07.151 week Reroute Vertex cold boxes to raw water in progressMon 27.07.151 week Reroute Atlas cold box to raw water in progressMon 28.09.151 week Install scaffolding on Jura side (EN-MEF-SI?) to be advanced ?Thu 01.10.152 days Cut drinking water (pipe loop already drained) to be advanced ?Mon 05.10.152 days Cut Ventilation duct and pipe on Jura sideWed 07.10.151 day Remove drinking water from NW (Asbestos)Thu 08.10.152 days

10. 4. Schedule – CV activities TaskStartDuration Disconnect cooling system from CMS Barrack 902Mon 02.11.20151 day Install scaffolding on Saleve side (EN-MEF-SI?)Mon 02.11.20151 day Cut and remove chilled water pipeWed 04.11.151 week Cut Ventilation duct and pipe on Saleve sideWed 11.11.151 day Install new Chilled water pipe (Gallery + Barrack BE-BI)Thu 12.11.153 days Connect the new cooling system for Barrack BE-BITue 17.11.151 day Rerouted Gallery Pipes (2 demi water, 2 raw water, 1 compressed air)Mon 04.01.162 weeks

11. Thank you for your attention