LAN Room and Wiring Closet Cooling Presented by Jim Magallanes TechniCool Innovations Inc Upham Street Suite B-1, Broomfield CO Phone / Fax

Jim Magallanes 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

Jim Magallanes 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 ft 2 Contents: 1 – 3 Equipment Racks Heat Load per Rack: 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

Jim Magallanes 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

Jim Magallanes 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

Jim Magallanes 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 Ceiling-Mount A/C : Cost Effective Solution for Server Rooms ASHRAE – Thermal Guidelines for Data Processing Environments

Jim Magallanes 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

Jim Magallanes 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

Jim Magallanes 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

Jim Magallanes Cooling Solutions – Portable Systems LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar 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

Jim Magallanes 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 buildings A/C Typically not a problem Condensate removal Tank or pump No Humidity Controls LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

Jim Magallanes 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

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

Jim Magallanes Cooling Solutions – Mini Split Systems Pros Low cost No floor space required No affect on buildings 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

Jim Magallanes 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 condensation in 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

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 Jim Magallanes Cooling Solutions – A/C Computer Cabinet LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar Airflow Pattern Front to Back Airflow Pattern: Side to Side

Jim Magallanes 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 buildings A/C Typically not a problem Manufacturer specific cabinet No Humidity controls Condensation removal LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar

Jim Magallanes 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

Jim MagallanesLAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar 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

Jim Magallanes 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 buildings A/C Typically not a problem LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar Cooling Solutions – A/C Ceiling Systems

Jim Magallanes 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

Jim MagallanesLAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar 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

Jim Magallanes 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 Cooling Solutions – Precision Ceiling Systems

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

Jim Magallanes 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

Jim Magallanes LAN Room and Wiring Closet Cooling Questions LAN Room and Wiring Closet Cooling – CTM 2012 Operations Seminar Phone