PRESENTATION BY: MIKE BURT
AIR FILTER SOLUTIONS INC.
•
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
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
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.
More surface area = greater dust holding capacity = longer life
Air Flow verses Pressure Drop Filter Size: 24X24
Different Filter Types 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:
* Filter has not been tested under the MERV procedure. The noted rating is an estimate.
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.
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
Presentation by: Bryan Curtis
ATEC/Indirex
HaveACoolDay.com
Evaporative Equipment Specialist
Evaporative PreCoolers, Indirect Evaporative Units,
Portable Evaporative Units, etc…
AFEC 2013
Evaporative PreCooling
Increase
Cooling
Capacity
Reduce
Energy
Usage
Small Packaged Unit
Performance Data
(12.5 Tons)
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%
CAPACITY INCREASE
Large Scroll Compressor
Chiller Performance Data
(100 Ton)
Increase in Tons
11%
Decrease in KW
19%
Increase in EER
27%
CAPACITY INCREASE
Summary of Results
CDD % Savings14
19.5%
16
29.5%
17
31.1%
19
21.5%
20
19.3%
21
20.3%
22
17.5%
500 450 400 350 300 250 200 150 100 50 0 339 239 363 250 393 308 395 319 425 338Cooling Degree Day (CDD)
Without PreCooling 16 19 20 21 22 With PreCooling 14 352 283 kW h 17 332 402
ENERGY SAVINGS
Unit Description: 40 Ton Packaged Condensing Unit
Location: Cypress, TX (Houston Area)
Evaporative PreCoolers Installed
“A … dirty condenser coil can increase
compressor energy consumption by 30%.”
- Federal Emergency Management Program Fact Sheet
REDUCED MAINTENANCE
“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…
•
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
•
The measure will focus on retrofits for existing commercial rooftop units
10 nominal tons or greater.
Direct Evaporative PreCoolers for Air-Cooled Condensers (DEPACC)
•
Public Service will provide a prescriptive rebate of $100/nominal
ton of cooling for the installation.
XCEL ENERGY REBATES
•
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.
•
The forecasted spend amount for this new measure is $1,102,500.
•
DEPACC will contribute 2,788 net generator kW of demand
savings and 2,465,098 kWh of electric savings.
Presentation by: Mike Limke
TRANE
Trane Rental Services Manager
Portable / Temporary HVAC
AFEC 2013
HVAC Upgrades
Not of age requiring replacement,
but new enough to justify upgrading.
Control Panel Upgrade
Adaptive Frequency Drives
Renewal / Refresh Programs
• 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
Classic Black 1980-1985 UCP1 1985-1993 UCP2 1993-2001 CH531 2001-2008Present
Single door pneumatic 1964-1976
Double door pneumatic 1976-1980
• 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
Why?
•
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
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
•
Does anyone have a chiller that runs 100%
loaded, 24 hours a day, 365 days a year?
Features and Benefits - Energy Savings
0.000 0.100 0.200 0.300 0.400 0.500 0.600 0.700 0.800 0.900 20% 30% 40% 50% 60% 70% 80% 90% 100% kW/Ton Percent LoadAFD Comparison Curves
Without AFD, Without Condenser Relief With AFD, With Condenser Relief
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
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.
Product Overview
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.
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
Why ?
–
Long term assurance...
•
Additional two, three, five year parts and labor
warranties available.
–
Environmentally conscious - prevent refrigerant
leaks – Legal (and moral ) obligation
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
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
63
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
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
65
Why ?
•
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
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