At a Glance
This measure installs Floating Head Pressure Controls on single compressor systems which allows head pressure of system to follow ambient dry bulb temperature instead of preset on/off operation based on cut-in/cut-out pressures. Savings then occur from load reduction of the refrigeration system. It is applicable to the grocery sector only. The remaining potential that qualifies this as a small saver is based on this assumption. Programs appear to be phasing out of offering this specific measure, and the RTF will consider deactivation in the next round of updates when the measure sunsets.
The July 2019 measure update used EnergyPlus to model savings. Those models are available upon request.
The RTF approved allocating resources to Floating Head Pressure Controls for Multiplex Systems at the December 2019 meeting.
Workbook
Latest Version
Past Versions
version | date | document |
---|---|---|
2.0 |
Aug 2, 2019
|
Workbook for savings approved at July 2019 RTF meeting. Workbook currently undergoing QA/QC review.
|
1.6 |
Dec 5, 2016
|
QC review complete.
|
1.5 |
Jun 29, 2016
|
Updated to 7th Plan format and assumptions. Currently undergoing QC.
|
1.4 |
Jan 4, 2016
|
Delivery verification checklist added
|
1.3 |
Aug 28, 2014
|
QC review complete.
|
1.2 |
Jun 24, 2014
|
Currently undergoing QC
|
1.1 |
Dec 11, 2012
|
Summary sheet added.
|
1.0 |
Dec 17, 2010
|
Original savings workbook.
|
Decisions
Expand All DecisionsLatest decision
Decision details
Approved Measure Changes
Decision DetailsApprove the Floating Head Pressure Controls UES as presented
- Update load shape to floating head pressure control
- Add cost for variable speed fan
- Keep the Category at Small Saver
- Keep the Status at Active
- Set the sunset date to July 30, 2024
Extend Sunset Dates
Decision DetailsExtend the sunset date for the Floating Head Pressure Controls UES to September 2019
Extend the sunset date for the following measures to November 2019:
- ASPH upgrades SF
- CC&S SF
- ASHP Upgrades and Conversions MH
- CC&S MH
- MH Weatherization (Heat Pumps)
- DHP in Zonal Electric Resistance Homes SF
- DHP in Zonal Electric Resistance Homes MH
- SF Weatherization
Approve measure update
Decision DetailsAdopt the delivery verification guidance as presented for the following measures:
- Com Grocery – Display Case LEDs (Open Cases)
- Com Grocery – Display Case Motion Sensors
- Com Grocery – Floating Head Pressure Controls for Single Compressor Systems
- Com Grocery – Strip Curtains
- Com Grocery – Walk-in Evaporator Fan EC Motor Controllers
- Com Grocery – Compressor Head Fan Motor Retrofit to EC Motor
- Com Smart Plug Power Strips• Com Traffic Signals – LED Traffic Signals
- Res Heating/Cooling – Electronic Thermostats
- Res Heating/Cooling – Ground Source Heat Pump Upgrades
- Res Lighting – High Performance T8 Lamps (4 foot and 8 foot).
Approve measure update
Decision DetailsApprove the ‘Floating Head Pressure Control on Single Compressors’ measure as a “Small Saver” UES; Set the measure status to ‘Active;’ and Set the sunset date to June, 2019; Restrict measure to grocery sector only; Direct staff to look at potential for FHPC outside of the grocery sector and bring back to RTF at next meeting
Sunset date extension
Decision DetailsExtend the sunset dates for Autoclosers, Display Case LEDs (Open Cases), Door Gasket Replacement, Floating Head Pressure Controls for Single Compressor Systems, and Strip Curtains to June 30, 2014.
Direction for further analysis
Decision DetailsAccept staff’s proposed plan to bring the Out-of-Compliance UES measure into compliance and to extend the sunset date to March, 2014.
Approve measure update
Decision DetailsAdopt the SBW recommendations for the Commercial Grocery Floating Head Pressure for Single Compressor Systems UES measure and change the status to Out of Compliance with a sunset date of December 31, 2013.
Approve measure update with direction for further analysis
Decision DetailsMeasure accepted, analysis will be run to gauge the effect of modeling different refrigerants, with the potential of splitting the savings between R404 and R22s, and that Jerome, Hadley, and Grist will review the results