We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJabari Garraway
Modified about 1 year ago
© American Standard Inc. CAUSES AND EFFECTS OF DEFERRED MAINTENCE s Texas Association of Community Schools s Houston, Texas s October 20, 2014 Greg Spencer
© American Standard Inc. Statistics today: s USGAO estimates 1 in 5 children attend schools with poor IAQ s Old infrastructure – 73% of public schools built prior to 1970 s GAO report indicates 15,000 schools circulating unfit air s Nationally, deferred maintenance costs risen to $127B
© American Standard Inc. Contributors to the problem: s Inadequate school funding s Increased enrollments s Lack of manpower and capabilities s Competing interests – curricular & facility
© American Standard Inc. Some impacts: s Inefficient equipment operation s Reduced equipment effectiveness s Increased utility costs s Poor IAQ s Reduced equipment life expectancy
© American Standard Inc. Tough Life for a RTU-Typical in TX s Regarded as semi-disposal pieces of equipment. s Live in a harsh environment. s Receive little to no maintenance.
© American Standard Inc. Air-Side Vs. Refrigerant-Side s Two fluid loops to deal with. s Air Side s Refrigerant Side s Always do air-side maintenance and repairs first.
© American Standard Inc. Air-Side Focus s Filters s Cooling Coil s Fan s Motor s Casing Integrity
© American Standard Inc. Filters – what are they for? s Maintain air cleanliness in classrooms s Keeps the unit clean s Best investment in the system
© American Standard Inc. How often to change? s Quarterly or sooner s Tie to Energy Management System s Install pressure differential switch
© American Standard Inc. Cooling Coil s Dirt on cooling coil costs both temperature and utility costs s Texas Field Test u 87% of units need coil cleaning s Clean evaporator coil yearly
© American Standard Inc. RTU Blower s Bearing lubrication s Clean fan blades s Measure air flow
© American Standard Inc. Motors s Sealed bearings s Specify energy efficient motors u When buying new equipment u When buying replacement parts
© American Standard Inc. Casing Integrity s Many access panels can leak s Too many screws s Old gaskets and seals s Leaks in cabinet costs more than $ 100/year
© American Standard Inc. Condenser Coil s Exposed to the outdoor elements s A dirty coil raising the condenser temperature by 10 degrees can cost over $250 / year in energy. s Best money you can spend on maintenance s Clean coils yearly.
© American Standard Inc. CHW systems similar s Poor pumping losses can exceed 10% s Cooling tower- 1 degree rise = 1.5% higher costs s Tube fouling-can equate to 10% loss in efficiency s Refrigerant charge-17% loss in efficiency s Boilers-buildup can create 10% loss in efficiency
© American Standard Inc. Thank You
Copyright © Texas Education Agency, All rights reserved. Basics of HVAC.
1 Packaged HVAC Equipment. 2 Is the most common source for HVAC in small to medium commercial buildings Is the most common source for HVAC in small to.
ACTIVE LEARNING PROCESS Prepared By : Dishant Panchal 13BECEG112 Neeshit Kaushik 13BECEG122 Neel Panchal 13BECEG116 Guided By : Prof. Jugal Panchal Branch:
AUDITAC training package Inspection and audit of air conditioning facilities.
Psychrometrics Presented by: Earl Delatte. psychrometrics OLD QUOTE I am certain that no air is so unwholesome as air in a closed room that has been often.
Chapter 4 Air-Conditioning Components. Standard and Optional Equipment.
Introduction to HVAC Systems Presented by AirTight University.
Make it Work For You. § Small Business Environmental Assistance Program A technical, administrative and regulatory support program on pollution issues.
Cooling Solutions Presented by Paul Almond – Datacentre UK.
Data Center Thermal Management and Efficiency Jay Ries Regional Sales Manager Liebert Thermal Management Emerson Network Power Jay Ries Regional Sales.
TORO ID PRE COOLER (Patent Pending) for Air Cooled Condensers Improving Cooling Efficiency and Energy Conservation in Air Cooled HVAC Systems.
ENERGY AUDIT OF CONDENSER AND CONDENSER COOLING WATER SYSTEM Presented By M.V.Pande Dy.Director NPTI, Nagpur.
Achieving & Sustaining High Performance Building Operations December 2007 Bank of America Tower, NYC.
Chapter 24 Heating, Ventilation, and Air- Conditioning (HVAC) Systems.
Save Electricity Save Money Save the Earth Make it Work For You.
Organic Rankine Cycle (ORC) Waste Heat Generator (WHG) Presented by Grant Terzer and Marc Rouse 2010 Regional Distributor Review & Conference Americas.
Energy management in plastics processing. Why worry about energy? The carrots Finance Management Environment Customers The sticks Legislation.
AIRCONDITIONING BASICS AIR-CONDITIONING CAPACITY TR or ton of refrigeration - unit of measure of all air conditioners. Indicates a certain quantity of.
Arizona Priority Lists Charlie Gohman Az Dept of Commerce Energy Office.
TrueDRY Dehumidification Systems Training Module Click For Next Slide To advance this module, click when this icon appears on the slide.
Tomorrows Energy Standards Today.
RAMPS © Reliability, Availability, Maintainability, Predictability, Scalability Presented by Joe Soroka Presented by Joe Soroka For additional information.
5100 Wilfong Road, Memphis, TN Phone: Fax: ®
Reducing Energy in Heating, Cooling and Lighting Green and Healthy Property Management Prepared with Assistance from: Tohn Environmental Strategies & Steven.
XEnergy Technologies Energy Efficiency Through Creativity.
PowerPoint ® Presentation Chapter 6 Refrigeration Systems Refrigeration Mechanical Compression Refrigeration Absorption Systems Troubleshooting and Maintaining.
Total Productive Maintenance TPM. AGENDA TPM Agenda »Introduction To TPM »Why – Benefits? »Typical Maintenance Strategies »What Does TPM Look Like? »How.
Refrigeration Systems. COP COP = coefficient of performance Air conditioners, refrigerators: COP=Q L /W net Heat pumps: COP=Q H /W net Energy balance:
Spares Management Software Ben Stevens - OMDEC. Repairable & Non Repairable Spares High cost critical spares are expensive and difficult to forecast Issues.
© 2016 SlidePlayer.com Inc. All rights reserved.