PRESENTATION BY: MIKE BURT AIR FILTER SOLUTIONS INC. DENVER, COLORADO

INEXPENSIVE RETROFIT DESIGNS FOR ABOVE CEILING UNITS Fan coil units Fan terminal units Single ducted fan powered units Heat pump units Where air filtration applications are difficult to perform service install / change-out

WHY WOULD A RETROFIT TO THE FILTER SECTION BE NECESSARY? Where the existing application has a poor quality air filter in place. Where the existing application has a poor quality or broken down holding mechanism to hold the air filter in place.

FAN POWERED BOX

FAN POWERED BOX Wire holding filter in place

This 24X24X1 Poly Filter is bowing inward at only a velocity of 300 FPM or another words 1200 CFM

Air Flow verses Pressure Drop Filter Size: 24X24 More surface area = greater dust holding capacity = longer life Different Filter Types w.g. inches @ 1200 CFM 300 FPM w.g. inches @ 1600 CFM 400 FPM w.g. inches @ 2000 CFM 500 FPM Amount of Surface Area 52.2-2007 MERV 1" Poly Framed Filter * 0.22 0.30 not rated 4 sq. ft. 5* Camfil Farr Aeropleat III 1" Pleated 0.43 7.8 sq. ft. 8 Camfil Farr Aeropleat IV 1" Pleated 0.43 9.8 sq. ft. 8 Camfil Farr 30/30 1" Pleated 0.26 0.44 9.8 sq. ft. 8 2" Poly Framed Filter * 0.25 0.36 0.45 4 sq. ft. 5* Camfil Farr Aeropleat III 2" Pleated 0.16 0.23 0.33 12.1 sq. ft. 8 Camfil Farr 30/30 2" Pleated 0.15 0.23 0.33 17.3 sq. ft. 8 Summary: The filter with the most surface area will maintain a lower pressure drop (less restriction) over time, since it has more surface area for much greater dust holding capacity. 2" Best Choice = FARR 30/30 or high capacity * Filter has not been tested under the MERV procedure. The noted rating is an estimate.

Different Filter Types Air Flow verses Pressure Drop Filter Size: 24X24 1200 CFM @.10" w.g. Amount of Surface Area 52.1 Rated Efficiency 52.2-2012 MERV 1" Poly Framed Filter 1200 4 sq. ft. *5 3-4* FGI 400 Series SC 1" Pleated 950 7.2 sq. ft. 52.2-2012 7 Camfil Aeropleat III 1" Pleated 1025 7.8 sq. ft. 52.2-2012 6 Camfil Aeropleat IV 1" Pleated 1250 9.8 sq. ft. 52.2-2012 5-6* Camfil Farr 30/30 1" Pleated 1125 9.8 sq. ft. 52.2-2012 7 Fiberbond FDL 1" Ring Panel 850 4 sq. ft. 52.2-2012 8 2" Poly Framed Filter 950 4 sq. ft. 52.2-2012 3-4* FGI 400 Series SC 2" Pleated 1175 12.4 sq. ft. 52.2-2012 7 Camfil Aeropleat III 2" Pleated 1225 12.1 sq. ft. 52.2-2012 6 Camfil Farr 30/30 2" Pleated 1250 17.6 sq. ft. 52.2-2012 7 Fiberbond FDL 2 Ring Panel 850 4 sq. ft. 52.2-2012 8 Summary: The filter with the most surface area will maintain a lower pressure drop (less restriction) over time, since it has more surface area on which to load contaminant. * Filter has not been tested under the MERV procedure. The noted rating is an estimate.

FILTER HOLDING FASTENERS

Filter Holding Fastener

Fan Powered Box retrofit

Fan Powered Box retrofit, Size: 24X20X2

Fan coil unit consists of a fan that blows room air over a coil of finned pipes that carry heated or chilled water. Some types have a single coil supplied with hot water; these can only heat the air. Others types have a single coil supplied with chilled water, these can only cool the air. Yet others have 2 coils and heat or cool the air. The electrical loading is small, consisting only of a fan and usually a controller that operates valves to control the flow of heated or chilled water. Almost always single phase. The chilled and/or heated water would be supplied by remote central plant, with appreciable energy use.

AIR FILTER SOLUTIONS INC. THANK YOU FOR THE OPPORTUNITY IN SPEAKING

AFEC 2013 Advanced HVAC Retrofits Presentation by: Bryan Curtis ATEC/Indirex HaveACoolDay.com Evaporative Equipment Specialist Evaporative PreCoolers, Indirect Evaporative Units, Portable Evaporative Units, etc

Evaporative PreCooling for Air-Cooled Condensers

The Evaporative PreCooling Principle Increase Cooling Capacity Reduce Energy Usage

Small Packaged Unit Performance Data (12.5 Tons) CAPACITY INCREASE Increase in Tons 11% Decrease in KW 19% Increase in SHC 6%

CAPACITY INCREASE Mid-size Scroll Compressor Chiller Performance Data (50 Ton) Increase in Tons 11% Decrease in KW 18% Increase in EER 27%

Large Scroll Compressor Chiller Performance Data (100 Ton) CAPACITY INCREASE Increase in Tons 11% Decrease in KW 19% Increase in EER 27%

kwh ENERGY SAVINGS Unit Description: Location: Customer: 40 Ton Packaged Condensing Unit Cypress, TX (Houston Area) Large Telecom Company Summary of Results 500 450 400 350 300 250 200 150 100 50 0 352 14 283 425 393 395 402 363 339 338 332 319 308 239 250 16 17 19 20 21 22 Cooling Degree Day (CDD) Without PreCooling With PreCooling CDD % Savings 14 19.5% 16 29.5% 17 31.1% 19 21.5% 20 19.3% 21 20.3% 22 17.5%

ENERGY SAVINGS Evaporative PreCoolers Installed

REDUCED MAINTENANCE Cleaner coils mean more efficient operation. A dirty condenser coil can increase compressor energy consumption by 30%. - Federal Emergency Management Program Fact Sheet If the coil is dirty. this raises your electricity cost for air conditioning and may shorten the life of the outdoor condensing unit. - Saturn Research Management

WATER CONSERVATION The National Renewable Energy Lab (NREL) reports: U.S. electricity production consumes over 20 gallons of water per KWH created. Other studies confirm this water usage, and state that depending upon the power plant type, the water usage can range from 10 gallons to 25 gallons of water consumed per KWH created. PreCooling systems use approximately 1.9 gallons of water for each KWH saved. This savings covers 90% of water usage cost while saving electricity Precooling systems annual water costs are measured in hundreds of dollars, while saving thousands of dollars annually in electricity costs. By reducing electricity demand and consumption Evaporative Cooling actually SAVES water on a global scale!

ADDITIONAL BENEFITS Reduces Energy Use Reduces Demand Charges Reduces Overall Maintenance Increases tonnage capability Improves the KW/Ton Ratio Reduces Head Pressure Increases system reliability Protects Coils from Debris and Damage Extends the life of HVAC equipment

XCEL ENERGY REBATES Direct Evaporative PreCoolers for Air-Cooled Condensers (DEPACC) The measure will focus on retrofits for existing commercial rooftop units 10 nominal tons or greater. Public Service will provide a prescriptive rebate of $100/nominal ton of cooling for the installation. The rebate will be capped at 60% of total project cost and will be consistent with the existing terms and conditions of the current Public Service Company prescriptive measure incentives and measure. DEPACC will contribute 2,788 net generator kw of demand savings and 2,465,098 kwh of electric savings. The forecasted spend amount for this new measure is $1,102,500.

AFEC 2013 Advanced HVAC Retrofits Presentation by: Mike Limke TRANE Trane Rental Services Manager Portable / Temporary HVAC

HVAC Upgrades Not of age requiring replacement, but new enough to justify upgrading.

Control Panel Upgrade Adaptive Frequency Drives Renewal / Refresh Programs

Control Panel Upgrade

What is it? Comprehensive retrofit package for centrifugal chillers regardless of manufacturer Includes a complete enclosure with all of the Intelligent Devices necessary to control: Chiller operations Temperature and pressure sensors Wiring harnesses Display and a mounting swing arm

Control / Human Interface Upgrade Present CH531 2001-2008 UCP2 1993-2001 Classic Black 1980-1985 UCP1 1985-1993 Single door pneumatic 1964-1976 Double door pneumatic 1976-1980

Why? Upgrades controls to newest digital controls and operator platform Easy to use and output enhances the operators knowledge of chiller operations Improves reliability which will help achieve customer s financial goals by saving on operating cost and preventing expensive failures Features... Intuitive color display Chiller logging Chiller trending Fully digital controls Communication w/bas Adapts chiller to situation and creates alert. Decrease utility demand charges. Soft loading. Benefits... Easy access to information More data available Reports and graphs Similar panel to new production Increased reliability Improved temperature control Enhanced motor protection More BAS options

Screen shots - view of the chiller

Screen shots - view of the chiller at-a-glance

Screen shots - view of the evaporator data

Screen shots - view of the condenser data

Screen shots - view of the compressor data

Screen shots - view of the motor data

Adaptive Frequency Drives

What is it? Retrofit package to replace motor starter on centrifugal compressor water chillers. AFD is designed to maximize chiller efficiency and reduce power consumption by adapting the motor speed to the chiller s operating load Designed to interface with a variety of controls Suitable for CVHE and CVHF chillers Offered as unit mounted or remote mounted Using adaptive logic, the AFD meets the systems required load conditions and at the same time maintains maximum efficiency of the chiller By communicating with the control panel, the AFD maintains safe and uninterrupted chiller operation

Chiller With AFD Retrofit Can be unit or remote mounted.

Why? Does anyone have a chiller that runs 100% loaded, 24 hours a day, 365 days a year?

Features and Benefits - Energy Savings AFD Comparison Curves 0.900 0.800 0.700 0.600 0.500 kw/ton 0.400 0.300 0.200 0.100 0.000 20% 30% 40% 50% 60% 70% 80% 90% 100% Percent Load Without AFD, Without Condenser Relief With AFD, With Condenser Relief

Applications Serves buildings with a variety of cooling needs Commercial offices Retail buildings Chillers with high run hours (over 1,000) at part lift Facilities where water temperature can be reduced by 10 degrees or more an AFD will result in higher savings Hotels Data processing facilities Arena and Sport Complexes Systems designed for peak operation (sporting event, game, etc.) 24-hour dehumidification for locker rooms, pools, etc. Manufacturing facilities

Applications Product Overview Misapplied chillers Oversized chillers (older chillers were sometimes oversized) Building that have changed owners and type of use Heat recovery or ice making that is no longer used Hospitals Hotels Soft start requirement, reduces startup inrush High utility rates Utility rebates available.

Renewal/Refresh Programs

What is it? Renewal / Refresh Webster s definition: re new: to become new or as new; to begin again. an investment that delivers a manufacturer s original commitment of reliability and performance that is backed by a long-term warranty.

For what Products Centrifugal Chillers Helical Rotary (screw) chillers (air cooled and water cooled) Large Package Rooftops Units (>20 tons) Vertical Self Contained Units. Building Automation Systems

What is Renewal / Refresh Service Program? Under Normal Conditions, Components Can Wear and Deteriorate Over Time... Gaskets - internal and external elastomer seals give up elasticity and harden with time. The rate of deterioration depends on time, temperature, and operating conditions. Bearings - individual unit-operating conditions can influence bearings performance. Certain site conditions can cause bearing damage and ultimately compressor failure. Slide Valve slide valve wear, common result is the loss of load and temperature control.

What is Renewal / Refresh Service Program? Technology improvements can lead to improved performance. Mechanical Upgrades can lead to improved efficiencies and reliabilities. Software Upgrades can also lead to improved efficiencies and reliabilities.

Why? Budget Constraints Saves Money vs. Compressor Failure or Unit Replacement - Budgeted Expense, Planned, Predictable, Not a Surprise Lowest Life Cycle Cost for Your Equipment Proactive - while compressor wear is not preventable, catastrophic compressor failure can be reduced Financial Constraints With a Major Failure or Complete Chiller Replacement Budget planning in advance Maintenance budget vs. capital expense

Why? Long term assurance... Additional two, three, five year parts and labor warranties available. Environmentally conscious - prevent refrigerant leaks Legal (and moral ) obligation to conserve the environment

Chillers, Package Equipment Remanufacture Compressor to original specifications Replaced and/or upgraded parts to current OEM specifications Install latest compressor upgrades Oil & refrigerant analysis Eddy current tube analysis Motor contactors, (compressor, fan) Auxiliary switches Wiring harnesses Proving switches Phases monitor Supply/Return fan motor bearings Condenser fan motors Fan hub seals Upgrade fan blades to quieter, more efficient Upgrade economizer actuators Replace economizer actuators linkage. Fan support brackets Door gaskets, latches, and screws Replace Insulation Clean/repair drain pans Out door pressure sensor tubing Clean dirty condenser and evaporator coils Clean dirty condenser and evaporator tubes Repair refrigerant leaks

Summarizing A Thorough Equipment Evaluation Restored Unit Compressor to the OEM s Current Specifications Replaced and/or upgraded parts to current OEM specifications A new serial number to reflect the changes Save money - 1/2 the cost of a compressor failure Scheduled downtime Budgeted expense Long term compressor assurance Standard two-year parts and labor compressor warranty Additional three-year parts and labor warranty with a service agreement Prevent refrigerant leaks conserve the environment

BAS R newal Advantages of planned upgrade Cost advantage of control system upgrade vs. control system replacement 2x to 4x less expensive to upgrade control system than to completely replace system Tracer R newal retrofit kit utilizes existing enclosures Utilizes other existing system components, including wiring No need for electrical contractor and associated costs 63

Building Automation Software upgrades uploaded Upgraded graphics Graphic data trending and reporting Standard report libraries Strategies to reduce energy usage Ventilation optimization procedures Static pressure optimization Chiller-Tower optimization Lighting Control Advanced alarm management

Why? 65 Keep building operating at high performance Keep control system operating properly Compensate for any changes Find areas of building systems improvement Avoid unplanned failures or obsolescence 2x to 4x less expensive to upgrade control system than to completely replace system

R newal Upgrade Program In conclusion Many reasons to upgrade Avoid obsolescence and risk Improve operational efficiencies Many advantages of upgrade Less cost than system replacement Easier on your budget Maximize system operation Protect investment into future 66

AFEC 2013 Advanced HVAC Retrofits Questions? ATEC/Indirex HaveACoolDay.com