PNW Rooftop Unit Working Group - RTUG – Rooftop Unit Research Project Phase 4 May 26, 2010

PNW Rooftop Unit Working Group- RTUG –

Rooftop Unit Research Project Phase 4

May 26, 2010

RTUG Agenda 052610• RTUG Work Plan Review• Bonneville-Cadmus RTU Research Work: Questions Anyone?• Energy Trust of Oregon O&M Solutions Initiative–RTU Pilot • RTU Results Database Update/Demo • Bonneville RTU Program Servicing Contractors Summary

– Lesson learned for training requirements– Measure definitions: air flow, others – Regional RTU service protocol: completed or….?

• Initial Web-Enabled Thermostat Summary/Demo Lunch 12:15 - 1:00pm

• Regional RTU-related Roundup -Premium Ventilation-Other PNW Regional: Bonneville ET HVAC Advisory Group-California: IOUs/Advanced Cooling/Research Results-IEER Issue/Status-ASHRAE Comprehensive Performance Rating System Proposal

• RTUG Strategic Plan/Roadmap - Initial Discussion • Next Generation Retrofit – Initial Discussion [Breaks taken as needed]

NBI – RTUG Work Plan• Convene/manage the RTUG• Actively promote collaboration within/outside the

region on EM&V protocols, RTU efficiency research• Review BPA research results and assist in drafting the

proposed annualized savings methodology• Assist in implementing the Regional RTU Research

Results database – RRRR or R4 database• Lead the RTUG through a process to scope technical

and related elements of a regional RTU Strategic Plan• Identify options for equipment redesign, deeper

retrofit and early replacement

Current RTUG Schedule

• NBI contract with NPCC/RTF through November 2010

• 3 RTUG meetings, up to 3 RTF meetings

• May 26 > ???? > October 26 > RTF Nov 2

• Elements of a Strategic Plan/Roadmap

• Next steps…

Bonneville – Cadmus SOW• Evaluate persistence of savings over 1 year• Verify the initial signature annualization calculations• Evaluate correlation between logged OSA and TMY

data• Evaluate winter heat pump performance• Feedback to and from HVAC service companies• Demonstrate/evaluate energy savings/performance

of web-enabled programmable thermostats-20 units• Refine annualization calculations using building

characteristics, whole building energy use data and energy signatures

Roof Top Unit Economizer Service “After The Pilot?”

The EconomizerProgram

Savings and Incentives for the O&M Solutions Initiative

Savings development for 2010 scale-up effort• For economizer retrofit option:

• Average savings found in 2009 retrofit pilot metering study on 3-ton units

• Adjusted with PSE program results• For economizer retrofit option w/ DCV:

• No units w/ DCV metered during retrofit pilot• Used PSE program results w/ DCV savings

• For various Tune-up options:• Tune-up of larger units not target of prior ETO pilot

effort• Used PSE program results for various options• Savings checked against RTUG finding of ~200kWh/ton

Energy Calculations

Tune-up Options (Office/Retail)3 or 4 Ton Roof Top Unit Incentive Requirements

1 Install new economizer with DCV controls Includes Economizer package, new O/A Sensor, new Two-stage Programmable Thermostat and DCV control, installed and set for maximum energy savings.

2 Install economizer without DCV controls Includes Economizer package, new O/A Sensor installed and set for maximum energy savings. Existing Programmable Thermostat already has Two-stage cooling and is in working condition. DCV controls not warranted due to space occupancy.

5 thru 20 Ton Roof Top Unit Incentive Requirements3 Tune up unit with existing economizer with

thermostat and sensor replacement.Replacement of existing economizer O/A sensor and thermostat that does not have two-stage cooling, or that is not programmable. Economizer must work properly after tune up as per Form 180TE checklist. (Damaged dampers, damper linkage and damper motors shall be fixed prior to tuning up if found non-functioning.)

4 Tune up unit with existing economizer with sensor replacement only.

Replacement of existing economizer O/A sensor only and performing services per Form 180TE checklist. (Damaged dampers, damper linkage and damper motors shall be fixed prior to tuning up if found non-functioning.)

5 Add DCV control to unit w/ existing economizer Add-on DVC control, CO2 sensor, controller where necessary, and O/A sensor. Economizer must be operational and tuned up. Assumes existing thermostat is functioning and no new thermostat is needed. (Damaged dampers, damper linkage and damper motors shall be fixed prior to tuning up if found non-functioning.)

6 Perform all controls and tune up measures listed in 3,4 and 5

Add-on DVC control, CO2 sensor, controller where necessary, and O/A sensor, and new programmable thermostat. Economizer must be operational and tuned up. (Damaged dampers, damper linkage and damper motors shall be fixed prior to tuning up if found non-functioning.)

Economizer Retrofits3 thru 4 ton units, 7 years old to present.

• #1 Economizer with DCV• Estimated annual savings: 1512 kWh/ton and 57

therms/ton• Incentive paid to Trade Ally: $1250

• #2 Economizer without DCV• Estimated annual savings: 1500 kWh/ton and 4


Energy Savings (Office/Retail)


Existing unit Tune Ups5 thru 20 ton units, 10 years old to present.

• #3 Replace existing OSA Sensor & Single Stage Thermostat• Estimated annual savings: 246 kWh/ton and 4


• #4 OSA sensor replacement only• Estimated annual savings: 126 kWh/ton and 0


Existing unit Tune Ups (cont.)5 thru 20 ton units, 10 years old to present.

• #5 Add DCV control and O/A sensor to existing, working economizer

• Estimated annual savings: 262 kWh/ton and 57 therms/ton

• Incentive paid to Trade Ally: $1050

• #6 Complete Tune-Up Package, new Thermostat, new OSA Sensor, and CO2 Sensor

• Estimated annual savings: 382 kWh/ton and 57 therms/ ton

• Incentive paid to Trade Ally: $1250


Cost-Effectiveness determined for each option based on minimum tonnage allowed

• PMC set costs based on field knowledge and pilot results

• Incentive designed to pay close to 100% of expected costs

• Seen as best way to get contractor buy-in

• Incentive is flat, so cost-effectiveness increases with tune-up of larger ton units

• Measure life was hard to determine

• Only open to service contractors with existing service contracts

• Set at 5 years as conservative estimate for units with existing service contracts. Use regional data to true-up in future.

Cost-Effectiveness

Cost-Effectiveness (Office)

Measure #

Energy Efficiency Measure Name

Measure Lifetime

(Maximum 70 yrs)

Annual Electricity Savings (kWh)

Annual Natural

Gas Savings (therms)

Total Incremental

Cost of Measure

Total Potential Incentive

If Measure is Cost-effective

Combined Utility

System BCR

Combined Societal

BCR

1Office - Option #1

Install New Economizer5 4,098 202 $1,250 $1,250 1.6 1.6

2Office - Option #2

Install New Economizer w/o DCV

5 3,762 22 $1,050 $1,050 1.3 1.3

3Office - Option #3

Tune-up existing economizer w/ new T'stat & O/A sensor

5 1,060 36 $450 $450 1.0 1.0

4Office - Option #4

Tune-up existing economizer w/ new O/A sensor only

5 540 0 $250 $250 0.7 0.7

5Office - Option #5

Add DCV to unit w/ existing economizer

5 1,100 336 $850 $850 1.6 1.6

6Office - Option #6

Add DCV to unit w/ existing economizer & all other tune ups

5 1,620 336 $1,250 $1,250 1.3 1.3

Note: Minimum size for Option #1 & Option #2 is 3-tons Minimum size for Option #3 thru Option #6 is 5-tons

Cost-Effectiveness determined for each option based on minimum tonnage allowed

• PMC set costs based on field knowledge and pilot results

• Incentive designed to pay close to 100% of expected costs

• Seen as best way to get contractor buy-in

• Incentive is flat, so cost-effectiveness increases with tune-up of larger ton units

• Measure life was hard to determine

• Only open to service contractors with existing service contracts

• Set at 5 years as conservative estimate for units with existing service contracts. Use regional data to true-up in future.

Cost-Effectiveness

On the HorizonSavings and Program true-up• Repeat metering approach used in 2009 retrofit pilot

• If possible, select site with repetitive RTU’s and similar tune-up options performed

• Use RTUG efforts to inform M&V protocol requirements

• Determine gas savings for units installed with DCV• True-up savings estimates using 68°F changeover and 4-

tons• Perform service contractor interviews to determine

effectiveness of checklist and paperwork• Explore installed program mix to determine which options

are preferable• Review installation costs to determine appropriate

incentive level

Where Are We Today ?

(RTUG Meeting)

• Sent out 74 Existing Building HVAC Trade Ally Applications first week of April

• Received 30 completed applications by the 19th of April

• Set and trained the first 11 applicants• 1 Astoria• 1 Redmond• 1 Jacksonville• 1 Grants Pass• 7 in Portland metro area

• Next 19 appointments are pending

Sequence of Operation

These Are The Numbers Month One

As of May 19th the savings on paper, on my desk, approved, and being installed and tuned-up are:

• Total Economizers being installed: 51 for a total of 176.5 Tons

#1 with DCV savings: 266,868 kWh and 10,060 therms

#2 with out DCV savings: 264,750 kWh and 706 therms

• Total Tune-ups being done: 102 for a total of 806 Tons

#3 T’stat & Sensor only savings: 198,274 kWh and 3,224 therms

#4 Sensor only savings: 101,556 kWh and 0 therms

#5 DCV only savings: 211,172 kWh and 45,942 therms

#6 All the above savings: 307,892 kWh and 45,942 therms

Training

• History lesson on why we need to do this,

64% don’t work

• Go through required paper work and train Trade Ally how to qualify the RTUs

• Incentives

• Quality Control

• Conclusion

Review

• Install new economizer packages

• 3 thru 4 ton, 7years to present

• Repair existing economizers

• 5 thru 20 ton, 10 years to present

• Install new thermostats

• Set schedules and temperatures for new and existing thermostats for maximum energy savings

• Install new sensors and set for maximum energy savings

• Require 68°F changeover temperature.

• Install new DCV / CO2 controls.

Contact

Lockheed MartinDaniel Wilkinson621 SW Morrison St. Suite 550Portland, OR [email protected]

Direct: 503-243-7687Cell: 971-678-6457Fax: 503-243-1154www.energytrust.org

mailto:[email protected]

http://www.energytrust.org/

R4 Database

Site Summary

• Site ID• RTU ID• Weather data• Annual kWh pre-• Annual kWh post-• Compressor stages• Compressor max duty (frac

of full load)• Economizer (y/n)• Monitoring level

Pre- and Post- Service Summary

• Fan kW• Fan duty (fraction of full

load)• Baseload kWh/day• Balance point temp• Slope kWh/day/degF• Demand @ 80 degF, Stage

1&2 kW

Performance Tested HVAC Contractor Debrief Overview

Presented to: the RTF Rooftop Unit Working Group May 26, 2010

Presented by:Mira Vowles, P.E., CEM

Emerging Technology Project ManagerBPA Energy Efficiency

Performance Tested HVAC Contractor Debriefing Meetings

• Apollo Sheet Metal (4/9/2010)

• Campbell & Company (4/9/2010)

• MacDonald Miller Facility Solutions (4/12/2010)

• Portland Energy Conservation, Inc. (2009)

26

Performance Tested HVAC Lessons Learned

27

Program Requirements

Better definition of Program elements, such as economizer change-over settings, system airflow measure and documentation requirements

Market Transformation

More training, streamlined protocols and better tools are needed for cost effective application of energy efficiency measures

Missed Opportunities More aggressive thermostat adjustments, fan scheduling, economizer change-over settings and follow-up with the end-use consumers

RTU Service Protocol – 1/19/10

• Economizer recommissioning: C7650 sensor & snap disk changeouts, 2-stage t-stat, actuator circuit-dampers, controls as needed; changeover temp recommended @ 68°F [track problems]

• Option: add economizer for 3-4-5 ton units [ETO ≤ 7yr newer]• Temperature split screening for charge check. Check if split is over

30deg.• Agnostic on refrigeration charge diagnostic approach/tools• Airflow! Legal/contractor issue, not a program issue? ASH 62!

seasonal? Don’t need prog spec. Discuss with RTF? Document as found condition. Inform contractors on Best Practice.

• Condenser coil cleaning #1; evap #2 wet or dry, brush/water preferred.

• Scheduling/fans where feasible• Filter - visible inspection• DCV?

Web-Enabled T-Stat/ControlsPresented to: the RTF Rooftop Unit Working Group

May 26, 2010

Presented by:Kathy Hile

Research Project ManagerCadmus Group

DreamWatts - Cadmus Scope of Work• Evaluate energy savings and product performance on 20 RTUs:

– Persistence of savings– Enhanced control over typical small commercial building control

systems.– Reduction in energy usage– Owner engagement and satisfaction with product and any barriers to

adoption

Web-Enabled Data CollectionFor sites with Web Enabled Programmable Thermostats, Excel files consisting of the following data will

be provided: 2 years of data at 60 second intervals for each RTU, with the opportunity to download 4 Excel data files)

• Thermostat temperature or calculated control temperature (1/100 degrees C)• Remote sensor temperatures, if installed (1/100 degrees C)• Relative Humidity (%)• Cooling set point (1/10 degrees C)• Heating set point (1/10 degrees C)• Override state (whether an override is in effect)• Fan relay state (closed/open)• State of heating relays (both open, stage 1 closed, stage 2 closed)• State of cooling relays (both open, stage 1 closed, stage 2 closed)• Lockout state (none, all functions require PIN, all but override entry require PIN)• Amperage• Voltage• Power in Watts• Power Factor• Frequency• Energy (kWh since inception/initialization of the register)• ComLynx (-25 C) • Zip code based outdoor temperature from www.weather.com collected every 30 minutes

http://www.weather.com/

Premium VentilationFan Cycling DCV

Research Funded by:

Bonneville Power Administration

Incentive Partners: EWEB & ETO

Premium Ventilation Package Regional HVAC Savings

DOE2 based analysis

0

2,000

4,000

6,000

8,000

10,000

12,000

Phoenix AZ

Sa c'to CA

Eugene OR

Boise ID

Burl'ton VT

Chica go IL

Mem phis TN

Houston TX

HV

AC

kW

h pe

r 10

00 s

quar

e fe

et

Ba se Tota l HVAC

Tota l ECM Sa vings

Rem a ining Fa n & Aux

Rem a ining Cooling

Rem a ining Hea ting

Eva pora tive Pre-cool

Fa n VSD Idle

Dem a nd Ventila tion

Integra ted Econom izer

Ventila tion Wa rm up

Strip Hea t lockout

Optim um Sta rt

Premium Ventilation:Significant RTU Savings

• Premium economizer savings, plus

– Fan savings when not heating or cooling

– More accurate ventilation during occupied period

– Reduced ventilation when not occupied

• Estimated (DOE2) HVAC savings: 25% - 45% regionally

• Compare potential savings in Sacramento, CA:

– SEER 13 to 15: 0.22 kWh/sf

– Premium Ventilation: 2.0 kWh/sf

• Limited field testing for functionality:

– Two RTUs with adequate data for savings prediction:

RTU Savings (n=2) 13.1%; 66.3%

– Savings vary widely with base condition and loading

Its Time for Stand-Alone DDC• Its time to let the low

cost, 35-year old solid-state economizer controllers go

• Just too many wires up on the roof.

• A combined programmable thermostat with BACnet DDC controller is now here at a reasonable price from multiple manufacturers

DCV Integrated Fan Control (DCV-IFC)

Sequence Improvements– Occupancy Sensor based setpoint

and ventilation– Duty cycling would circulate air at

least every 30 minutes– Stand-alone demand reduction– Allow night flush cooling

Advantages of DCV-IFC– Interface with any staged

rooftop unit with an economizer,

– With the fan off when not needed less damper leakage

– Greater savings than VSD power reduction at low speed

– Lower cost as no VSDs and associated wiring or motor upgrades are required.

– Higher reliability, as electronic economizer (solid-state) controls are replaced with digital logic.

– Ventilation monitored and controlled

Summer Typical Mode Setpoints

45.0

50.0

55.0

60.0

65.0

70.0

75.0

80.0

85.0

90.0

12:0

0 AM

2:00

AM

4:00

AM

6:00

AM

8:00

AM

10:0

0 AM

12:0

0 PM

2:00

PM

4:00

PM

6:00

PM

8:00

PM

10:0

0 PM

12:0

0 AM

Sp

ace

Tem

per

atu

re /

Set

po

int,

d

eg F

0%

20%

40%

60%

80%

100%

120%

140%

160%

180%

OS

A D

amp

er

OA Damper

Space Temp

Cool Set

Econo Set

Heat SetUno

ccup

ied

Nig

ht F

lush

Opt

imum

S

tart

(P

urge

)

Occ

upie

d

Sta

ndby

O

ccup

ied

P

re-D

eman

d

Dem

and

Rec

over

y

Uno

ccup

ied

ASHRAE 62.1 Ventilation Standards Met with Fan Cycling

Fan Cycling Ventilation (cycles shown to meet ventilation only)

0%

20%

40%

60%

80%

100%

120%

140%

160%

8 A

M

9 A

M

10 A

M

11 A

M

12 P

M

1 P

M

2 P

M

3 P

M

4 P

M

5 P

M

Fan operates 35.1% of time

Vent OA damper CO2 PPM as % of Full Design % Design Occupancy 3.0 hr Avg OA % of prescriptive

Allow ed maximum ventilation increases as OA approaches space temperature

Note: Startup ventilation compliant w ith 62.1 users manual is typically below prescriptive levels under CO2 sensor control.

Bids Are In

• Assuming ~$300 for rewiring, – Dual controller still cost net ~$100 more – Rewired single controller in space preferred

• Cost still in one-off stage

Manuf Per RTU Per Bldg @ 6/Bldg

KMC $1938 $1938Innotech* $2038 $1015 $2207Alerton $3301 $3301

*Building unit includes ethernet connection & programming station

Update: BPA Emerging TechnologiesPresented to:

Regional Technical ForumRooftop Unit Working Group May 26, 2010

Presented by:Mira Vowles, P.E., CEM

Emerging Technology Project ManagerBPA Energy Efficiency

EE Emerging Technology (E3T)

Emerging Not yet assessed or included in BPA programs

Small Market Share Commercially available (or nearly so) with only a small market share in the Northwest

Energy Efficiency Significant potential to provide quantifiable, reliable, and cost effective electric energy savings in the Northwest

Technically Sound Reasonable certain performance

Relevant Readily identifiable program or R&D gaps

E3T Technology Identification and Selection Process

Technology MWh MW PerformanceYears to Market

Ductless HVAC xxxxx xxxxx xxxxx xxxxx

LED yyyyy yyyyy yyyyy yyyyy

HAN zzzzz zzzzz zzzzz zzzzz

PlugLoad wwww wwww wwww wwww

E3T Intake List

BPA Technology Innovation and Confirmation






E3T Priority List

New Offer

Assess

Stage Gate 2-4

Stage Gate 1 ScreenScan Stage

Gate 5

Stage Gate 6-7

TechnologySummary

Benefits & PotentialScorecard

Project Portfolio

Funding ProposalScorecard

New Offer Documentation






EE Qualified Measure List

TechnologyPotential

Project Proposal

Identification Scorecard

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10Technical PromiseTime to Market

Size of Market Potential

BPA E3T – Energy Efficiency Emerging Technology Program

Part 1 E3T -Technology Identification and Selection






E3T Intake List

Energy Smart Innovation

Center

Technical Advisory GroupsEnergy Smart

Innovation Center

Technical Advisory GroupsTechnical Advisory GroupsBPA Technology Innovation and Confirmation






E3T Priority List






E3T Priority List






E3T Priority List

Stage Gate 2-4

Stage Gate 1

Stage Gate 5Scan Screen Assess New Offer

Stage Gate 6-7

Stage Gate 2-4

Stage Gate 1


Stage Gate 6-7

Stage Gate 2-4

Stage Gate 1


Stage Gate 6-7

Measure Identification



Measure Benefits & Potential ScorecardsMeasure Benefits & Potential Scorecards

E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mise

Time to Market


Funding Proposal Scorecard

E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mise

Time to Market


E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mise

Time to Market











E3T Qualified Measure List













Selection Process Web SiteCollaboration

HVAC TAG members: EWEB, NEEA, NYSERDA, SMUD, Davis Energy Group, NBI, MacDonald Miller, PSE, PAE, LBNL, SCE, Arup, SCL, AHRI, BC Hydro, PG&E

Energy Management TAG: New members needed

2009 HVAC Technical Advisory MembersName Organization Location

Bob Carver NYSERDA Troy, NY

Charlie Grist Northwest Power & Conservation Council Portland

Dave Bisbee Sacramento Municipal Utility District Sacramento, CA

David Springer Davis Energy Group Davis, CA

Howard Reichmuth New Buildings Institute White Salmon, WA

Jack Callahan Bonneville Power Administration Portland

Jared Sheeks MacDonald Miller Engineers Seattle

Joel Jackman Puget Sound Energy Bellevue, WA

Keith Elder Coffman Engineers, Inc. Seattle

Marcia Karr WSU Energy Program Olympia

Mark Firestone PAE Consulting Engineers Portland

Mary Ann Piette Lawrence Berkeley National Lab Berkeley, CA

Mike Lubliner WSU Energy Program Olympia

Paul Delaney Southern California Edison Irwindale, CA

Edwin Hornquist Southern California Edison Irwindale, CA

Peter Alspach Arup Seattle

Phoebe Warren Seattle City Light Seattle

Xudong Wang Air-Conditioning, Heating & Refrigeration Inst. Arlington, VA

Tom Yin BC Hydro Burnaby, BC

KC Spivey PG&E San Francisco, CA

Prioritization: Technologies Reviewed by 2009HVAC Technical Advisory Group

Technology Title Priority

Variable refrigerant flow (VRF) heat pumps -- "Multi-split" H

Demand-Controlled Ventilation H

Demand Controlled Ventilation for Commercial Kitchens H

Indirect-Direct Evap Cooler L

2010 HVAC Technical Advisory Group June 10TH Meeting

45

* Propose new technologies

* Rank measures






E3T Intake List

Energy Smart Innovation

Center

Technical Advisory GroupsEnergy Smart

Innovation Center

Technical Advisory GroupsTechnical Advisory GroupsBPA Technology Innovation and Confirmation






E3T Priority List






E3T Priority List






E3T Priority List

Stage Gate 2-4

Stage Gate 1


Stage Gate 6-7

Stage Gate 2-4

Stage Gate 1


Stage Gate 6-7

Stage Gate 2-4

Stage Gate 1


Stage Gate 6-7




Measure Benefits & Potential ScorecardsMeasure Benefits & Potential Scorecards

E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mis

e

Time to Market



E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mis

e

Time to Market


E3T Project List

4

9

6

2

7

0

2

4

6

8

10

0 2 4 6 8 10

Tech

nica

l Pro

mis

e

Time to Market
























Technology Identification and Selection - Web Site

46

http://e3tnw.org/Home.aspx

Current E3T RTU Assessment Projects

Technology Team Activity Status

RTU Service

Cadmus, NEEA, NEEC, Ecotope & 11 utilities

Multiple Field Tests In Progress

Demand Controlled Ventilation

City of Eugene, EWEB, SUB, ETO, PECI

Multiple Field Tests In Progress

Web Enabled Thermostat

SCL, Clark PUD, Cadmus, MacDonald Miller

Demonstration and Field Test

In Progress

47

How to Participate - TAGs E3T Technical Advisory Groups

Purpose: Regional and national experts submit, evaluate and prioritize emerging technologies and make recommendations to BPA through an in-depth guided process

Participation: New members for Energy Management are needed for 2010

Contact: Jack Callahan, BPA Energy Efficiency, [email protected]

Jack Zeiger, WSU Energy Program, [email protected]

Learn More: Visit the BPA Web site: www.bpa.gov/energy/n/emerging_technology/index.cfm



http://www.bpa.gov/energy/n/emerging_technology/index.cfm

NORTHWEST ENERGY EFFICIENCYTECHNOLOGY ROADMAP

MARCH 2010BPA Technology Innovation

http://www.bpa.gov/corporate/business/innovation/

http://www.bpa.gov/corporate/business/innovation/

Prioritization: EE Technology Roadmap 2010 - Top 15 R&D

Rank Product & Service Priority (Max=1001 Residential Heat Pumps 1002 Heat Recovery 983 Retro & NC Air Sealing 974 Manufactured Homes 975 Deep Retrofits -Residential & Commercial 956 Retro & NC Air Sealing 957 Improve Task/Ambient Application 958 Net Zero Energy Home 929 Retro and NC Windows 91

10 Day Lighting Walls 9111 Commercial HVAC 9012 Easy/simple user interface controls 8913 Net Zero Energy Home 8814 Retrofit Insulation 8715 Retro and NC Windows 84

Prioritization: EE Tech Roadmap 2010 - Top 15 Market/Programs

Rank Product & Service Priority

1 Data centers 1002 Virtualization and consolidation of small system 963 Solid state lights 954 Heat pump water heaters with exhaust vent 905 Mini split with space and water heat 876 HVAC 857 Commercial variable refrigeration flow 838 Minisplit - Residential space and water heat 789 Efficient home electronics 76

10 Environmental interlocks – hotel key locks 7511 Integrated building design 7512 DCV for commercial kitchen hoods 7413 Wireless homes 7414 Power conversion 7315 Smart plug strips 72

CA IOUs RTUs• PG&E continues RCA/DTS program + AirCare Plus

• SCE: Halts RCA/DTS; designing small-scale additive pilots for RTU QI/QM with ACCA/ANSI Standard 180 as baseline

• Want to distinguish a ‘Premium Service’ offering

• Western HVAC Performance Alliance: www.performancealliance.org

• WCEC > Western Cooling Challenge

http://www.performancealliance.org/

Indirect Evaporative-HybridWestern Cooling Challenge-WCEC

Coolerado H80, 5-ton RTU. NREL tested.Sensible EER Spec @ 90°F ≥17 MEASURED = 41.1 EERSensible EER Spec @ 105°F ≥14 MEASURED = 20.1 EER

80% kWh – 60% kW ReductionWater use spec ≤ 4.0 gal/tonh MEASURED = 1.85 gal

Western Cooling Efficiency Center• RTU Retrofit Initiative: evaporative pre-cooling >

condenser inlet, outdoor-air intakeDual-Cool, HelioMist, Evaporcool, FlashCool, Thermal Flow, Cool-N-Save

• 1000 Ton Pilot Concep Coolerado H-80

Parameter/Model H80 WCC Minimum

$/kWh $0.142 $0.142

$/kW $123.24 $123.24

kWh/yr/ton savings 1029 515

kW/ton savings 0.68 0.34

$/ton Savings $230 $115

Proposed 1000- Ton Pilot Customer Savings:PG&E Large Single Story Retail

kW and kWh/yr savings of WCC Minimum estimated at 50% of H80 Climate Zone 12

Cost6-ton RTU 2010 DOE H80 WCC Minimum

Equipment Cost $7,313 $13,000 $10,710

Incremental Cost $5,688 $3,398

Equipment Cost [$/ton] $1,219 $2,167 $1,785

Incremental Cost [$/ton] $948 $483

Incremental Installation Cost [$/ton] $50 $50

Total Incremental Cost/ton $998 $533

Equipment First Cost at Pilot Program Volumes

H80 without gas heat is $12,000, but standard practice is to include gas heatH80 has a capacity of a 6 ton RTU operating with 120 cfm/ton of ventilation air requirement

California HVAC Research-Summer 2009• Early replacement and replace on burnout –

ducts/charge checking/rightsizing T24 requirements

• High Impact Measure – what was the efficiency impact of the new unit?

• No pre-retrofit case. Assumed RCA/DTS completed

• 150 RTUs

• DEER used to establish basecase

Basic monitored data hourly presentation. This is close to the raw data, except the raw data has monitoring intervals of 1-3

minutes. Some logic done on supply air temps such as max/min.

Power and temperature

0123456789

101112

21 4 11 18 1 8 15 22 5 12 19 2 9 16 23 6 13 20 3 10 17 24 7 14 21 4 11 18 1 8 15 22 5 12 19

time hours

powe

r, kW

ot t

emp/

10

osa comp stat/10 ret/10 supply hi/10 supply lo/10 supply fan/10

EER vs. Temperature Measurement

EER Performance

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

70.00 80.00 90.00 100.00 110.00

Hourly Temperature, Deg F

EE

R

observed SEER 10 ref SEER 13 ref observedSEER10 SEER13

Hourly Energy Model

Hourly Data

0

2

4

6

8

10

12

14

40 50 60 70 80 90 100 110

Hourly Temperature, deg F

En

erg

y, k

Wh

Mod Comp Comp kWh Max kW high Max kW lo max fw fan

Cumulative Energy – A check on the hourly model

Cumulative Compressor Energy

0.0

500.0

1000.0

1500.0

2000.0

2500.0

3000.0

18 20 22 24 26 28 301 3 5 7 9

11 13 15 17 19 21 23 25 27 291 3 5 7 9

11 13

Day of Month

Cum

ulat

ive

Cool

ing

Ener

gy,

kWh Model

Data

Annual perspective: the monitored unit did about as well as a SEER10 reference and better than the typical as-found unit

Monthly Compressor Cooling Energy

0

100

200

300

400

500

600

700

800

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month

En

erg

y kW

h Monitored

SEER 10

SEER 13

RCA base

Long-term average temperature data from TMY 2 for specified location.

An ongoing puzzle: the slope of the observed EER vs. temperature is atypical

EER Performance

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

70.00 80.00 90.00

Hourly Temperature, Deg F

EE

R

observed SEER 10 ref SEER 13 ref

SEER values taken from DEER prototypes

RTF RTUG UpdateMay 26, 2010

Reid Hart, PEAssociate Director

Technical Research Group

IEER Rating Background

Acknowledgement to Dick Lord for content from his presentation at CEE 09/09/2007

New Proposed Part Load Metric (IEER)• The ARHI 360 Engineering committee elected to base the

procedure on the general format used for chillers– A single metric would be used for part load ratings– It would be based on a weighted average of performance

at 100%, 75%, 50% and 25%– The weighting factors would be based on a US market

average– The performance would be determined at a ambient

conditions associated with the part load operation.– The committee elected to change the name from IPLV to

IEER so that people would not confuse the old and new requirement

Development of the Equation• In order to evaluate the A, B, C, D weighting factors for the

IEER equation as well as the temperature re-schedule temperatures we have developed a model with the following attributes;– Based on 3 buildings types – Office, Retail, School– Based on the 15 benchmark cities – see map– Looked at the analysis with and with economizer hours– Weight averaged the factors based on distribution of

building types and volume of packaged units for each region

– Performed the analysis for both air and water cooled conditions

Benchmark City Volumes

Miami FL

Houston, TX

Phoenix, AZ

San Francisco CA

Baltimore MD

Salem, OR

Chicago, ILBoise, ID

Burlington, VT

Helena MTDuluth, MN

El Paso, TX

Albuquerque, NM

Memphis TN

Zone % Volume1a 1.18%2a 8.84%2b 3.88%3a 8.74%3b 8.32%3c 8.68%4a 13.67%4b 1.44%4c 2.15%5a 21.08%5b 5.29%6a 10.43%6b 2.54%7 2.33%8 1.42%

Weighting Factors• For each of the 15 cities and 3 building profiles we then used a

tool that we have developed for ASHRAE 90.1 energy analysis which results in determining the number of operating hours per 5 degree temperature bin

• A typical city load profile is shown below:

Houston Drybulb Temperature Profile - Retail

29

253

557

660

563

497

402

324

264

203

138

69 515

0

100

200

300

400

500

600

700

100 95 90 85 80 75 70 65 60 55 50 45 40 35

Temperature

An

nu

al H

ou

rs

Weighting Factors

• Determine the % load vs the full load design point and then grouped the load into the following 4 bins

Load Level EER Weighting Ambient Test Load range

100% 2.0% 95.0°F 97-100%

75% 61.7% 81.5°F 62.5%-97%

50% 23.8% 68.0°F 37.5-62.5%

25% 12.5% 65.0°F 0-37.5%

Economizers• Technically we should include the economizer hours or the full

occupied hours, but this would require us to test with economizers as well as have ratings with and without economizers

• Based on this the ARI committee agreed to only base the IEER on the cooling mechanical hours as it therefore represents a measure of the refrigeration system

• Economizers are addressed separately by ASHRAE 90.1

Advantages of IEER• The new IEER will allow for a uniform rating of all products including

single stage and multiple stage

• It allows for improved part load IEER values with variable speed or stepped speed fans

• It encourages control logic and designs that can improve part load performance

– Compressor unloading

– Variable flow supply fan

• Accounts for fan energy when refrigeration is cycling

– Encourages more efficient fan design & fan motors

• Provides one national number focused on energy use

Issues with IEER• Static pressure test conditions lower than typical field

conditions retained

• Does not include effects of

– Economizer

– Fan low speed or cycling during idle

– Evaporative assist or heat recovery

– Other efficiency impacts

• Does not provide regional data

Current Unitary AC Performance Levels

Note: Values above for electrical resistance heating section types.

Size Category (Btu/hr)

ASHRAE 90.1-2007 (1/1/2010)

IEER-EER

ASHRAE 189.1-2009

(3/2010)

IEER-EER

ENERGY STAR

(5/1/2010)

IEER-EER

CEE Tier 1

(Current)

CEE Tier 2

(Current)

>=65k - <135k11.2 EER

11.4 IEER0.2

11.5 EER

12.0 IEER0.5

11.7 EER

11.8 IEER0.1 11.7 EER 12.2 EER

>=135k - <240k11.0 EER

11.2 IEER0.2

11.5 EER

12.0 IEER0.5

11.7 EER

11.8 IEER0.1 11.7 EER 12.2 EER

>=240k - <760k10.0 EER

10.1 IEER0.1

10.0 EER

10.5 IEER0.5

Not defined

---- 10.7 EER 11.0 EER

>=760k9.7 EER

9.8 IEER0.1

9.7 EER

10.2 IEER0.5

Not defined

---- 9.9 EER 10.4 EER

Size Category (Btu/hr)

ASHRAE 90.1-2007 (1/1/2010)

IEER-EER

ASHRAE 189.1-2009

(3/2010)

IEER-EER

ENERGY STAR

(5/1/2010)

IEER-EER

CEE Tier 1

(Current)

CEE Tier 2

(Current)

>=65k - <135k11.2 EER

11.4 IEER0.2

11.5 EER

12.0 IEER0.5

11.7 EER

11.8 IEER0.1 11.7 EER 12.2 EER

>=135k - <240k11.0 EER

11.2 IEER0.2

11.5 EER

12.0 IEER0.5

11.7 EER

11.8 IEER0.1 11.7 EER 12.2 EER

>=240k - <760k10.0 EER

10.1 IEER0.1

10.0 EER

10.5 IEER0.5

Not defined

---- 10.7 EER 11.0 EER

>=760k9.7 EER

9.8 IEER0.1

9.7 EER

10.2 IEER0.5

Not defined

---- 9.9 EER 10.4 EER

RTU Comprehensive Performance Rating (CPR)

ASHRAE Work Statement 1608

Need for better energy representationCPR addresses items not covered by the IEER:

• Economizer function, including dynamic cycling and air stream Interaction

• Improvements to refrigeration system cycling degradation

• Air flow changes or fan cycling during idling

• Evaporative assist, heat recovery, and technologies with interaction of indoor and outdoor air.

• The ability to produce discrete results based on different combinations of outside and indoor load conditions for regional or specific building performance results.

Phases 1 & 2

• Suitable for short-cycle control items• Phase 1: Method of test & simplified bin annual energy

projection• Phase 2: Optimize test requirements and develop profiles

& regional projections

Load-based

Lab Testing

Annual Performance

Projection

Inverse Model of RTU

Performance

OAT DB &

MCWB

Sensible & Latent Space Load

Standard Controls;

Single Setpoints

Regional Bin OAT DB &

MCWB

Space Load

Profiles

Expert Process to find regional loading

probabilities

Phases 3 & 4

• Allow longer time cycle control analysis

• RTU simulation calibration

• Develop real-time emulators

• Regional sample days

• Modeling method to project results

Sensor Lab

Testing

Dynamic Sensor

Emulator

Regional Annual

Performance Projection

Dynamic Inverse Model of RTU/control Performance

Real Time Sample Days

Load-based

RTU Lab Testing

Inverse Model of RTU

Performance

OAT DB & WB -

Range

Sensible, Latent &

Ventilation Space Load

Standard Controls; Variable Setpoints

PC A/D data I/O Interface

Calibrated RTU

Emulator

Building Simulation

Model

TestedPhysical

Controls & Sequences

TMY OAT DB & WB

Space Load

Profiles

Expert Process

Real-time PC RTU Emulator

Four phases of CPR development

The four phases include:• Develop method of test for unitary systems in a constant load

condition using and inverse models for system performance • Develop a performance protocol for using the testing, model,

and projection developed in phase 1 to reflect the load profiles and climatic conditions

• Expand the method of test to include transient load impacting parameters changes in indoor maintained temperature and occupant loading relative to ventilation control. Develop or adapt and calibrate a software unitary system emulator that can be used for testing real-time controls performance impact.

• Further test the method and procedure to verify its repeatability at multiple labs. Develop a protocol for using the testing, model, and emulators to project annual system performance. Develop load profiles and climatic conditions to allow annual regional performance projection.

Rooftop Unit Working Group Time Line

NEEA2002-2004

RTFPhase I

2004

RTFPhase II

2006-2007

RTFPhase III

2009-2010

• Pilot Field Work• Inconclusive savings• Identified potential deadband issues• Not ripe for Market Transformation • Lab Testing

• Limited Field Test• Honeywell Redesign• Develop Protocol to Measure Savings• Scope Next Phase

• Secondary Source Review• Frequency of Problems• Scope Next Phase

• Test Protocol to Measure Savings• Large Field Test• Goal: Prov Deemed, Deemed Calc/MV Protocol• Scope Next Phase

Rooftop Unit Working Group Time Line

RTFPhase IV

2010

RTFPhase V

2011

RTFPhase VI

2012

RTFPhase VII

2013

• Expand collaboration

• Analyzing annual data

• Propose annual savings estimation methodology

• Propose M&V protocol

• Elements of a regional Strategic Plan/Road Map

• Next generation technology

• Recommendation to RTF for Phase V

•

• Lab test on new, sub-performing RTUs

• Embedded RTU performance monitoring/FDD specification

• Implement Roadmap• Modeling protocol resolution• Web-enabled T-stat approach verified• Premium Ventilation research support• Stronger regional/national collaboration

• Deep RTU retrofit program

• New gen evaporative

• Adaptive controls

• ARTU incentivized

Rooftop Unit Working Group Time LineRTF

Phase XXXIII2046

• Refrigeration charge checking eliminated

• Airflow testing eliminated

• Self-replicating neural networks with self-diagnosing, self-regulating, self correcting controls on all units

• Bomb proof economizers/controls

• 3-stage T-stats by code

• 7-10 year maintenance intervals

• HVAC OEM’s required to provide performance guarantee over product life

• Evaporative/hybrids, VRF and ground source heat pumps required by law. New RTU’s illegal…..

Roadmap Starters• Reconciling models with metered results

• Whole building data analysis

• Lower cost field monitoring – field/web

• Premium Ventilation expanded analyses

• Economizer research program -Only 50% of OSA dampers adjusted for higher maximum ventilation airflow could be adjusted to 70% or greater. Many could be adjusted to only 50% or less. - BPA RTU Research Program

• Further testing of web-based performance monitoring/control options

• Improve DOE2/eQUEST RTU calculations

PNW RTU Strategic Map/Road Plan• Elements of an Strategic Plan for Rooftop Unit Efficiency

Development– Goal setting– Leading to deemed savings estimator tool and field EM&V

protocol– Technology improvement– Audience: PNW regional and local, public and investor-owned

energy utility planners, utility EE program designers/implementers, public benefits energy efficiency organizations, the HVAC industry including contractors and equipment OEM’s

– Deliverable: Information/substantiation of the kWh/kW savings potential from new and existing rooftop unit HVAC equipment.

– Communications– Good information/data/analysis

Where Are We Going and Why?• WHAT ARE WE DOING STRATEGICALLY? • What is this about? Research to support EE resource acquisition

only? • Technical understanding/information through

testing/measurement-field& laboratory.• Elements of a SP: facts, allies, good internal communications, silo

busting. • Data repository, communication mechanism, leading edge tech• Increased market knowledge. • Local capacity to do testing of new equipment/components.• Connections with market allies, EE organizations

national/regional/state, various CA org relationships.• Facilitate communication market transformation among parties;

get performance feedback in a variety of ways.

Assessment Criteria• Consistency with goals regional power/conservation plan

including resource acquisition and cost effectiveness• Technology advancement, RDD&Deployment• Operating performance management• O&M&R cost management/Cost of Ownership• GHG management• Efficiency potential kWh/kW/therms• Market response• Market transformation opportunity• Integrated design/optimization • EM&V requirements/potential

Collaborate/Communicate/Educate

• RTUG: http://www.nwcouncil.org/energy/rtf/studies/ongoing/rtug/Default.htm

• BPA E3 ET/R&D: http://www.bpa.gov/energy/n/emerging_technology/index.cfm

• NEEA ET: http://www.nwalliance.org/participate/submit_your_idea.aspx• CA ETCC: http://www.etcc-ca.com/• Western Cooling Efficiency Center: http://wcec.ucdavis.edu/• Western HVAC Performance Alliance: www.performancealliance.org• State Energy Offices• Integrated Design Labs• US DOE --?

Everyone is looking at VRF small/large

Everyone is looking at FDD

Everyone is looking at performance monitoring

http://www.etcc-ca.com/

http://wcec.ucdavis.edu/

NEEA ET Criteria -11. Does the product or service have the potential to save energy

in the Northwest?

2. Can the energy savings be easily measured?

3. Is the product or service commercially available today?

4. Does the product or service have the potential to meet or exceed existing market needs?

5. Is there a compelling market barrier that NEEA can help address? (Is there a research project that would help speed adoption in the Northwest?)

NEEA ET Criteria -2• Product /Service Benefits

- How much energy can be saved and are the savings long-lasting Does the product / service provide non-energy benefits?- Do the energy savings provide a short payback for new construction, retrofit, or natural replacement customers?

• Market Effects- Is the market well defined with market barriers clearly identified?- Does the product provide good geographical coverage throughout the Northwest?- Does the product simplify or minimize changes to the supply chain?Will codes and standards accelerate market adoption in this case?

• Product / Technologies- Is the product clearly and easily defined?- Is there intellectual property that protects the product?- Is the level of technical risk low?

• Funding and Business Planning - Are there multiple funding sources for the product?- Is your company and management team well established and in the market for the long term?- Is NEEA’s requested involvement well defined.

PNW Energy Efficiency Technology Roadmap-1• RD1. Heat recovery optimization routines such that

economizer performance is not impacted.• RD2. Better MTBF information for equipment to inform

predictive maintenance programs and controls.• RD3. More reliable fault detection (FDD) and diagnostics

controls at smaller scale, market.• RD4. More research on neural networks and artificial

intelligence to help inform design of self-healing and learning HVAC controls systems would be useful.

• RD5. Software development to have fully-functional self-diagnosing controls.

• RD6. BPA RTU now testing simple fault detection and diagnostics sequences on RTUs.

• RD. Make ECM motors bigger and do belt drives.

PNW Energy Efficiency Technology Roadmap-2• RD8. Research to reduce maintenance with WCEC, NIST, ETO.

• RD9. Drop-in ECM motors for residential, need furnaces, case studies, savings, etc. - Concept 3?

• RD10. ACRx Sentinel by CEC PIER field study: up-to-date?

• RD11. Reliability of enthalpy controls – underway @ NBI: to be corrected.

• RD12. Condensing gas – pack RTU: NRCAN, CEE.

• RD13. Develop load based lab testing for RTUs (ASHRAE 1608-RTAR).

• RD14. Fault response on compressors related to US companies. RD20. Do field tests to provide feedback in order to help develop more accurate building simulation.

• RD21. Field M&V test for zoning savings to gather data for optimizing design choices for zoning with different heating and cooling systems.

RTUG Futures

RTUG Future• Research: how long, how deep? e.g. fix DOE2

• Future RTU program design?

• Technology advancement?

• West Coast regional collaboration: coop RTU research/cost-sharing, national advocacy?

• National advocacy with AHRI & HVAC OEM’s?

What’s Wrong with this Picture?

W5469 ControllerDamper Actuator

Whiz Bang Digital Sensor – C7660

Does snap disc input rush current burn out the motor prematurely?

Most Common Service Items To Date-BPA • Adjusted thermostat setpoint – 42%

• Added refrigerant charge – 63%

• Adjusted economizer changeover setpoint – 48%

• Cleaned or replaced economizer outside air sensors – 82%

• Adjusted minimum or maximum ventilation airflow – 60%

• Cleaned coils – 100% (required)

• Only 50% of OSA dampers adjusted for higher maximum ventilation airflow could be adjusted to 70% or greater. Many could be adjusted to only 50% or less.

RTU Efficiency Measures That are NOT Measured by Unit EER

• Economizer and damper effectiveness

• Damper seals

• Demand Controlled Ventilation (DCV)

• Variable speed fan; low speed during idle

• Ventilation lockout during warm up

ARTU Installation & Checkout Capability• Labels on the suction, discharge, and liquid lines

(for multiple compressors units).

• A high-pressure refrigerant port located on the liquid line. A low-pressure refrigerant port located on the suction line.

• Pressure ports accessible from outside of the condenser fan plenum (where compressors located within the condenser fan plenum).

• Controls to adjust the minimum outside air position accessible with air plenum panels in place.

Advanced Monitoring (Level 2)• (A) - The following sensors permanently installed to

monitor system operation• (B) - controller capable of displaying the value of each

parameter: – Refrigerant suction pressure– Refrigerant suction temperature– Liquid line pressure– Liquid line temperature– Outside air temperature– Outside air relative humidity– Return air temperature– Return air relative humidity– Supply air temperature– Supply air relative humidity

Advanced Diagnostics (Level 2)• Controller will diagnose and send a fault signal for the

following faults: Severe faults: – Failed compressor – Failed evaporator fan motor – Failed evaporator fan belt – Failed condenser fan motor

Degradation faults:– Dirty air filter– Dirty condenser coil– Dirty evaporator coil– Failed relief damper– Non-condensables in refrigeration loop– Restriction in refrigeration loop

Proprietary Electric Motor System

•Much higher performance for nearly same cost

Replaces or simplifies mechanical belts, pulleys and gearboxes

Delivers 2X torque over wider operating range with same size motor

Uses 10 - 20% less electricity

March, 2010

100

Conical hubs

Matching axial field poles

Patented Motor Design

Axial field pole detailed view

NovaTorque Patented Technology

• Axial Motor with Dual Cone-Shaped Rotor– Cone shape concentrates magnetic flux in field poles– Improved linear magnetic path improves efficiency– Simple bobbin winding improves reliability– Axial design easily accommodates copper or aluminum

winding– Better thermal path for heat dissipation

New Motor-NovaTorque

Motor Efficiency at Rated Speed

•

Centrifugal Fan Application

•

Product comparison – 3hp @ 1800

NovaTorque motor General Purpose Induction motor

Motor diameter 167 mm179 mm w/ external fins

200 mm

Frame Size 143T(56 w/ oversize shaft/bearings)

182T

Maximum Speed 2700 rpm 2700 rpm

Motor Weight 52 pounds 69 pounds

Motor Length 301 mm 420 mm

Operating Efficiency Range 90-94% 70-87.5%

Adaptive ECM for Res/Light Comm Retrofit Concept 3 motors should deliver the following savings:

• 50% reduction in fan electrical energy use during heating

• 11% reduction in cooling energy use

• 10% reduction in peak demand

• 80% savings for continuous ventilation applications

Concept 3 Adaptive Controls

• In dry climates, the fan runs at normal cooling speed during the air conditioner cycle, and then runs at very low speed for a time after the compressor turns off to re- evaporate condensate and recover unneeded latent capacity as sensible capacity.

• In humid climates, cooling airflow is reduced to improve dehumidification and the fan is immediately turned off at the end of the air conditioner cycle to reduce condensate re-evaporation.

• In mixed climates, Concept 3 accepts input from a humidistat to operate in dry climate mode during periods of low humidity, and in humid climate mode during periods of high humidity.

Embedded Diagnostics UI

Unit Comfort Alarm

Equipment Safety Alarm

Energy Savings Opportunity

Monitoring System Alarm

Efficiency Index

Potential Annual Savings

Expected Cost

Return on Investment

RTU -1 OK 2 ala rms 1 ala rms OK 83 $940 N/A N/A



RTU -4 OK OK 1 ala rms OK N/A N/A N/A N/A


Top of Form

Copyright 2005 Field Diagnostic Services, Inc. All rights reserved.

KEY PERFORMANCE INDICATOR

EMMS System Operation

110

Service Performance Management

Repairs

Capital Equipment Replacement

Maintenance

Remote Monitoring

Maintenance Vision – Generation 1

Preventative Predictive

Emergency Planned

Qualitative Quantitative

VOC Performance

None •iC3 Sensors•Niagara AX

Real Time Data

•FDSI Insight•Data Analytics

•Niagara AX•Remote HVAC Tech

•FDSI HVAC SAT•Remote HVAC Tech

•FDSI Insight•Industry Expertise

Service Performance Management

Repairs

Capital Equipment Replacement

Maintenance

Remote Monitoring

Maintenance Vision – Generation 2

Predictive Optimized

Planned Minimized

Quantitative Remote Real-Time Quantitative

Performance Intelligence

Real Time Data •“FDSI Inside”•Niagara AX

Fault Diagnostics

•FDSI Insight•System Tuning

•Niagara AX•Remote HVAC Tech

•“FDSI Inside”•Remote HVAC Tech

•FDSI Insight•Industry Expertise

21st Century? Zero Net Energy? CO2?

Documents

PNW Rooftop Unit Working Group - RTUG – Rooftop Unit Research Project Phase 4 May 26, 2010