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Floating Head Pressure Controls for Single Compressor Systems

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Work Products

UES Measures Standard protocols list Demand Response Technologies Supporting Documents Propose a measure or standard protocol Proposed measures and status Whole Building Efforts

Subcommittees

  • Agricultural Irrigation
  • Air Source Heat Pumps
  • Commercial HVAC
  • Compressed Air
  • Connected Thermostats
  • Demand Response
  • Ductless Heat Pumps
  • Duct Sealing
  • Guidelines
  • Heat Pump Water Heaters
  • Implementers Group
  • Market Analysis
  • Natural Gas Subcommittee
  • New Homes Standard Protocol
  • Non-Residential Lighting
  • Operations
  • Pump Systems
  • Research and Evaluation
  • Residential Behavior
  • Residential Lighting
  • RTF Policy Advisory Committee
  • Small and Rural Utilities
  • Statistical Methods
  • Whole Building Subcommittee
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UES Measure

  • Floating Head Pressure Controls for Single Compressor Systems

Floating Head Pressure Controls for Single Compressor Systems

At a Glance

Status 
active
Fuel type 
electric
Sector 
commercial
Applications 
grocery
Sunset date 
Jul 30, 2024

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

Commercial Grocery Floating Head Pressure Controls Single Compressor v3.0

File Commercial Grocery Floating Head Pressure Controls Single Compressor v3.0
Updated with 2021 Plan cost effectiveness methodology
Date 
Apr 18, 2022
Version number 
3.0

Past Versions

version date document
2.1
Sep 20, 2019
File Commercial Grocery Floating Head Pressure Controls v2.1
Measure as approved by the RTF at the July 2019 RTF meeting. Workbook updated post-QC review. No significant changes to savings or costs.
2.0
Aug 02, 2019
File Commercial Grocery Floating Head Pressure Controls Single Compressor v2.0
Workbook for savings approved at July 2019 RTF meeting. Workbook currently undergoing QA/QC review.
1.6
Dec 05, 2016
File Grocery FHPC Single Compressor v1.6
QC review complete.
1.5
Jun 29, 2016
File ComGroceryFHPCSingleCompressor_v1_5.xlsm
Updated to 7th Plan format and assumptions. Currently undergoing QC.
1.4
Jan 04, 2016
File ComGroceryFHPCSingleCompressor_v1_4.xlsm
Delivery verification checklist added
1.3
Aug 28, 2014
File ComGroceryFHPCSingleCompressor_v1_3.xlsm
QC review complete.
1.2
Jun 24, 2014
File ComGroceryFHPCSingleCompressor_v1_2.xlsm
Currently undergoing QC
1.1
Dec 11, 2012
File ComGroceryFHPCSingleCompressor_v1_1.xls
Summary sheet added.
1.0
Dec 17, 2010
File GroceryFHPCSingleCompressor_v1.xls
Original savings workbook.

Decisions

Expand All Decisions

Latest decision

Decision details

Decided 
July 23, 2019
RTF Meeting: July 23, 2019

Approved Measure Changes

Decision Details

Approve 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
Decided 
June 18, 2019
RTF Meeting: June 18, 2019

Extend Sunset Dates

Decision Details

Extend 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 

 

Decided 
November 10, 2015
RTF Meeting: November 10, 2015

Approve measure update

Decision Details

Adopt 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).
Decided 
June 17, 2014
RTF Meeting: June 17, 2014

Approve measure update

Decision Details

Approve 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

Decided 
March 18, 2014
RTF Meeting: March 18, 2014

Sunset date extension

Decision Details

Extend 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.

Decided 
November 19, 2013
RTF Meeting: November 19, 2013

Direction for further analysis

Decision Details

Accept staff’s proposed plan to bring the Out-of-Compliance UES measure into compliance and to extend the sunset date to March, 2014.

Decided 
December 11, 2012
RTF Meeting: December 11, 2012

Approve measure update

Decision Details

Adopt 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.

Decided 
November 02, 2010
RTF Meeting: November 2, 2010

Approve measure update with direction for further analysis

Decision Details

Measure 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

Small/rural Checklist

Latest Version

July 2014 Grocery Floating Head Pressure Controls for Single Compressor Small/Rural Utilities Checklist

File July 2014 Grocery Floating Head Pressure Controls for Single Compressor Small/Rural Utilities Checklist
Date 
Jul 7, 2014

Archived Documents

Grocery FHPC Single Compressor Recommendation Memo

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