1. Slide 1 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pump RTF Sub-Committee April 25, 2012 Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency

2. Slide 2 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Meeting Agenda 1.VC HP Sub-Committee Overview (Mira) 2.Daikin system Overview (Ali) 3.Mitsubishi system Overview (Ruben) 4.BPA VRF System ET Field Test (Mira)

3. Slide 3 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Variable Capacity Heat Pumps (VC HP = VRF + DHP) + Ductless Heat Pumps Variable Refrigerant Flow Heat Pump System

4. Slide 4 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

5. Slide 5 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N

6. Slide 6 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Daikin system Overview

7. Slide 7 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Mitsubishi VRF Heat Recovery Technology Simultaneous cooling and heating

8. Slide 8 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA VRF System ET Field Test Limited streamlined incentives for existing, electrically- heated, commercial buildings in BPA territory  12.3 IEER / 3.4 COP minimum  Optimized ventilation loads  DOAS, heat recovery or other strategies

9. Slide 9 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA VRF System ET Field Test VRF system monitoring capability:  VRF system condensing unit true power  evaporator unit power estimates  maximum sampling interval of 3 minutes  Minimum one year storage

10. Slide 10 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N BPA VRF System ET Field Test VRF system incentive based on:  VRF system cooling capacity (tons)  Building occupied hours  2,000 - 4,000  4,000 - 8,760

11. Slide 11 B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Next Meeting: 5/23/12 at 9 am John Lemmond, with AHRI, Standard 1230 Bach Tsan, with SCE, vetting models with field data Potential Other Topics: –Develop M&V best practice and standard protocol –Develop research plan to verify model accuracy –Brainstorm how to “mine” list of PNW VRF installations for useful information –Compare actual RTU annual fan kWh/SF to models –Develop simple, reliable VRF savings estimate