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.
The July 2019 measure update used EnergyPlus to model savings. Those models are available upon request.
The measure 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 RTF approved allocating resources to Floating Head Pressure Controls for Multiplex Systems at the December 2019 meeting.