LAN Room and Wiring Closet Cooling

1. LAN Room and Wiring Closet Cooling Presented by Jim MagallanesTechniCool Innovations Inc. jim@CRuptime.com 1811 Upham Street Suite B-1, Broomfield CO 80020303-908-8043 Phone / 888-883-8353 Faxwww.CRuptime.com

2. Outline • Wiring Closet – General Description • Electronic Equipment Trends • Cooling Load • Best Cooling Practices • Cooling Solutions • Portable Systems • Mini Split Systems • A/C Computer Cabinet Systems • A/C Ceiling Systems • Precision Ceiling Systems • Conclusion LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

3. Wiring Closet – General Description • Wiring Closet -Critical subsystem of a network environment • Small Room with Servers/Telecom/Electrical Equipment/ UPS • Floor Space is a Premium: <100 ft2 • Contents: 1 – 3 Equipment Racks • Heat Load per Rack: 1.0 - 2.0 kW Avg. • Typical Cooling: None or Building Cooling During Day • Remote location of building • Security: Medium • Locked Door and/or Locked Cabinet • “The average wiring closet contains $150,000 - $300,000 of equipment and a typical small server room often houses more than three times that amount.” - Mitch Medford, NetBotz CTO LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

4. Electronic Equipment Trends • Power = Heat • Servers • Blade Servers • Smaller & More Powerful • IP & VOIP Telecom Equip • High-powered switches and equipment • Low-powered legacy • Requires UPS support • Overheated IT equipment • Reduced Life / Hardware Damage • Reduced Reliability • Slower Network • Costly System Downtime • General Rule • Every 10°C temperature rise in nominal temperatures produces a 50% reduction in the lifetime and long-term reliability of IT hardware- MIL-HDBK 217 / Arrhenius Models Figure: Product Heat Density Chart(The Uptime Institute) LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

5. Electronic Equipment Trends • Power = Heat • Servers • Blade Servers • Smaller & More Powerful • IP & VOIP Telecom Equip • High-powered switches and equipment • Low-powered legacy • Requires UPS support • Overheated IT equipment • Reduced Life / Hardware Damage • Reduced Reliability • Slower Network • Costly System Downtime • General Rule • Every 10°C temperature rise in nominal temperatures produces a 50% reduction in the lifetime and long-term reliability of IT hardware- MIL-HDBK 217 / Arrhenius Models Figure: Product Heat Density Chart(The Uptime Institute) LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

6. LAN Room Heat Problem • Businesses dependent on computers and telecom equipment for day-to-day operations • Need to keep IT equipment cool • ASHRAE Technical Committee 9.9 • Thermal Guidelines • Inlet Temperatures • Costly to rely on building A/C • Data Centers • Upper range temperatures acceptable • Tight controls/monitoring • Redundancy • LAN Room/Wiring Closets • Temperatures in the upper 60Fs/lower 70s are practical • Looser controls/monitoring • No redundancy ASHRAE – Thermal Guidelines for Data Processing Environments Ceiling-Mount A/C : Cost Effective Solution for Server Rooms

7. Cooling Load • Determining the cooling load in a wiring closet • Incremental load from equipment • Nameplate rating • Usually overstated • ASHRAE TC 9.9: Load during operating conditions • Not yet adopted by manufacturers • Determine cooling load from UPS load • Load from all equipment connected to the UPS • Dependent on day and time • Monitor over a period time to get worst case scenario • Other sources of heat • Lights/windows/outside wall/etc… • Electrical power to rejected heat conversion • 1 kW = 3,413 Btu/hr. • 12,000 Btu/hr = 1 ton of A/C LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

8. Cooling Solutions & Best Cooling Practices • Cooling Solutions • Primary cooling for IT equipment • LAN Room/Wiring Closet is not air conditioned • Nights & Weekends when building a/c is off • Shut down building a/c when people are not in the building • Supplemental Cooling • Added denser IT equipment • Seasonal: Summer or Winter • Redundancy / Emergency backup to primary cooling • Planned or unplanned shut downs: Inexpensive insurance plan • Best Practices • Spot Cool vs. Traditional A/C • Managing Air Movement • Direct cold air to front of server: Airflow = Front to Back • Telecom equipment: Airflow = Side to Side • Do not cool down the entire room • Back of the rack: Up to 36°F Hotter • Use blanking panels • Unoccupied rack space: Recirculation of warm air • Organize cabling • Maximize airflow LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

9. Cooling Solutions – Portable Systems • Portable Systems • A self contained packaged air conditioner that is on wheels and is easily movable to spot cool “hot spots” • Power: 115 VAC, 230 VAC, & 460 VAC • Heat rejection: Ceiling plenum • Air or water cooled • Condensation removal • Tank: Emptying depends on humidity • Pump: Drain/sink/water line • End-user Installation • Connect accessories (15 – 20 minutes) • Non-standard applications may require contractor • Cooling Capacity • 1 – 5 Ton units available LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

10. Cooling Solutions – Portable Systems • Portable system features • Wide cooling capacity range • Voltage: 115V, 230V, or 460V • Approx. 1.5 Tons at 115V • Condensation removal • Tank: Empty periodically • Pump to drain/sink/water line • Operational features • Automatic Restart • Air delivery • Grille or nozzle • Ducting Capabilities • Exhaust • Long ducting runs • Return/Make-up Air LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

11. Cooling Solutions – Portable Systems • Pros • Low cost • Relocate unit from room to room • Moves with tenant • Little installation required • No outdoor equipment • Cons • Floor space required • Small heat load on building’s A/C • Typically not a problem • Condensate removal • Tank or pump • No Humidity Controls LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

12. Cooling Solutions – Mini Split Systems • Mini Split Systems • Consists of 2 units connected by refrigerant lines • Indoor Unit – Inside the wiring closet • Discharges cold air • Refrigerant lines • Transfers heat to the outdoor unit • Outdoor Unit – Outside the building • Discharges hot air to the environment • Designed for comfort cooling • High latent cooling • Removes moisture from air • Contractor Installation • Mounting/electrical/refrigerant lines/condensate line • System comes with pre-charged refrigerant lines • Cooling Capacity • 1 – 3 Ton units available LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

13. Refrigerant Lines Indoor Unit 70 FT 25 FT Outdoor Unit Cooling Solutions – Mini Split Systems Installation Guidelines Wiring Closet Outside Building LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

14. Cooling Solutions – Mini Split Systems • Pros • Low cost • No floor space required • No affect on building’s A/C system • Cons • Comfort cooling • Location Restrictions • Maximum height difference: 25 Ft • Maximum piping length: 70 Ft • Landlord Approval • Leasehold improvement • No Humidity Controls • Reliability • Possible leaks at quick-connect • Condensate removal • Does not work in extreme low temperatures LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

15. Cooling Solutions – A/C Computer Cabinet • Air Conditioned Computer Cabinet • A standard 19” computer cabinet housing a self contained packaged air conditioner • Power: 115 VAC and 230 VAC • Heat rejection: Ceiling plenum • Condensation removal • Pump: Drain/sink/water line • Evaporative: Exhausts condensationin warm condenser air • Delivers data center infrastructure to LAN room/wiring closet • End-user Installation • Connect accessories (20 – 30 minutes) • Cooling capacity per computer cabinet • ½ - 1 Ton units available LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

16. Cooling Solutions – A/C Computer Cabinet • A/C Computer Cabinet Features • Cooling capacity to match IT load • Voltage: 115V or 230V • Airflow Pattern • Most IT Equipment: Front to Back • Telecom Equipment: Side to Side • Air conditioner Location • Bottom of cabinet to prevent water leak • Condensation Removal • Pump to drain/sink/water line • Evaporate in exhaust: Poor IAQ • Backup Cooling • Backup UPS for cooling • Fresh outside air • Automatic Restart • Environmental Monitoring Airflow Pattern Front to Back Airflow Pattern: Side to Side LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

17. Cooling Solutions – A/C Computer Cabinet • Pros • Low cost • Relocate unit from room to room • Moves with tenant • Little installation required • No outdoor equipment • Efficient cooling • Brings cooling directly to IT heat source • Creates cold aisle/warm aisle for cold inlet temperatures • Delivers data center infrastructure to wiring closet • Cons • Small heat load on building’s A/C • Typically not a problem • Manufacturer specific cabinet • No Humidity controls • Condensation removal LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

18. Cooling Solutions – A/C Ceiling Systems • A/C Ceiling Systems • An A/C ceiling system is a packaged air conditioner that fits above the drop ceiling plenum that only has A/C capabilities. • Packaged system • Air Cooled • Water-cooled • Contractor Installation • Minimal labor • Unit comes pre-charged with refrigerant • Cooling Capacity • 1 – 5 Ton units available LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

19. Cooling Solutions – A/C Ceiling Systems • Precision ceiling features • Cooling capacity: 1 – 5 Tons • Voltage: 115V or 230V • Condensation removal • Pump to drain / sink/ water line • Gravity drain • Air delivery • Supply air ducting • Exhaust air ducting • Return air ducting • Optional Features • Automatic restart • BMS compatibility LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

20. Cooling Solutions – A/C Ceiling Systems • Pros • Configurable • Air-cooled or water-cooled • No floor space required • Low profile fits most ceiling plenums • Ducting capabilities • Cold supply air • Exhaust air • Cons • Contractor installed • Landlord Approval • Leasehold improvement • No humidity controls • Small heat load on building’s A/C • Typically not a problem LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

21. Cooling Solutions – Precision Ceiling Systems • Precision Ceiling Systems • A precision ceiling system is an air conditioner that fits above the drop ceiling plenum that has humidity and reheat capabilities. • Engineered system for specific applications • Packaged or split systems • Packaged: (1) component inside building • Split: Components inside and outside building • Air-cooled/water-cooled/chilled water-cooled systems • Contractor Installation • Copper piping/electrical/mounting/condensate line • Charges with refrigerant on-site • Cooling Capacity • 1 – 8 Ton units available LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

22. Cooling Solutions – Precision Ceiling Systems • Precision ceiling features • Wide cooling capacity range • Voltage: 115V, 230V, or 460V • Condensation removal • Pump to drain/sink/water line • Gravity drain • Operational features • Automatic Restart • Air delivery • Grille LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

23. Cooling Solutions – Precision Ceiling Systems • Pros • Highly configurable • Packaged or Split • Air-cooled/Water-cooled/chilled water-cooled • No floor space required • Multiple Options • Humidity controls/alarms/etc… • Cons • Very high cost • May require outdoor heat rejection equipment • Plenum space above ceiling is limited • Air Delivery is fixed location • Landlord Approval • Leasehold improvement • Engineered for application • Contractor installed: Expensive LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

24. Cooling Solutions – Comparison Chart Cost / Adaptable Ideal Wiring Closet Comments • Cost effective solution • Little installation required • Moves with tenant • Air or water cooled • Loads: 1 – 5 Tons • Requires floor space • Works with any building • Ideal for backup cooling PortableSystems Low / Flexible • Comfort cooling design • Cost effective solution • Leasehold improvement Low / Specific Buildings • Loads: 0 – 3 Tons • Close proximity to outside • No floor space Mini SplitSystems • Loads: .5 – 1 Ton/cabinet • No floor space required • Works with any building • Optional alarm/Mini DC • Cost effective solution • Efficient cooling system • Little installation required • Moves with tenant A/C Computer Cabinet Moderate / Flexible A/C CeilingSystems • Air or water cooled • Cost effective solution • Leasehold improvement • Loads: 1 – 5 Tons • Low height in plenum • No floor space Moderate / Flexible Precision Ceiling Systems • Better ROI > 3 Tons • Site monitoring system • Leasehold improvement • Loads: 1 – 8 Tons • No Floor space • Alarms needed High / Flexible LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

25. Wiring Closet – Cooling Solution Conclusion • Wiring Closet • Dedicated a/c system • Electronic equipment benefits • Increased life/reliability/server speed • Improve security with locked door • Selecting a cooling solution • Building structure • Budget • Closet requirements • Floor space • Location within building • Available power • Own/Leasehold improvement • Insurance Policy – Mission Critical IT Network • Redundant cooling solution for shut-downs (planned/unplanned) LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

26. LAN Room and Wiring Closet Cooling • Questions www.CRuptime.comjim@CRuptime.com303-908-8043 Phone LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar