Revision history [back]

The Create Baseline Building measure should handle this for you, but here are the coefficients it uses, which come from page 3.221 (251) of the PNNL 90.1-2010 PRM Reference Manual.

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

The Create Baseline Building measure should will handle this for you, but here are which use the coefficients it uses, which below. These come from page 3.221 (251) of the PNNL 90.1-2010 PRM Performance Rating Method Reference Manual. (and probably from COMNET and Title24 references too).

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

The Create Baseline Building measure will handle this for you, which use the coefficients below. These come from page 3.221 (251) of the PNNL 90.1-2010 Performance Rating Method Reference Manual (and probably from COMNET and Title24 references too).

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

Since the project is using the performance path you don't need to follow the "prescriptive" requirements of subsection 5, just the mandatory requirements of subsection 4.

G1.2 Performance Rating. This performance rating method requires conformance with the following provisions: All requirements of Sections 5.4, 6.4, 7.4, 8.4, 9.4, and 10.4 are met. These sections contain the mandatory provisions of the standard and are prerequisites for this rating method. The improved performance of the proposed building design is calculated in accordance with provisions of this appendix using the following formula:method...

The Create Baseline Building measure will handle this for you, which use uses the coefficients below. These come from page 3.221 (251) of the PNNL 90.1-2010 Performance Rating Method Reference Manual (and probably from COMNET and Title24 references too).

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

Since the project is using the performance path you don't need to follow the "prescriptive" requirements of subsection 5, just the mandatory requirements of subsection 4.

G1.2 Performance Rating. This performance rating method requires conformance with the following provisions: All requirements of Sections 5.4, 6.4, 7.4, 8.4, 9.4, and 10.4 are met. These sections contain the mandatory provisions of the standard and are prerequisites for this rating method...

The Create Baseline Building measure will handle this for you, which uses the coefficients below. These come from page 3.221 (251) of the PNNL 90.1-2010 Performance Rating Method Reference Manual (and probably from COMNET and Title24 references too).

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

Since the project is using the performance path you don't need to follow the "prescriptive" _prescriptive_ requirements of subsection 5, just the mandatory _mandatory_ requirements of subsection 4.

G1.2 Performance Rating. This performance rating method requires conformance with the following provisions: All requirements of Sections 5.4, 6.4, 7.4, 8.4, 9.4, and 10.4 are met. These sections contain the mandatory provisions of the standard and are prerequisites for this rating method...

The Create Baseline Building measure will handle this for you, which uses the coefficients below. These come from page 3.221 (251) of the PNNL 90.1-2010 Performance Rating Method Reference Manual (and probably from COMNET and Title24 references too).

case control_type
when 'Constant Flow'
  coeff_a = 0.0
  coeff_b = 1.0
  coeff_c = 0.0
  coeff_d = 0.0
when 'Riding Curve'
  coeff_a = 0.0
  coeff_b = 3.2485
  coeff_c = -4.7443
  coeff_d = 2.5294
when 'VSD No Reset'
  coeff_a = 0.0
  coeff_b = 0.5726
  coeff_c = -0.301
  coeff_d = 0.7347
when 'VSD DP Reset'
  coeff_a = 0.0
  coeff_b = 0.0205
  coeff_c = 0.4101
  coeff_d = 0.5753

Since the project is using the performance path you don't need to follow the _prescriptive_ prescriptive requirements of subsection 5, just the _mandatory_ mandatory requirements of subsection 4.

G1.2 Performance Rating. This performance rating method requires conformance with the following provisions: All requirements of Sections 5.4, 6.4, 7.4, 8.4, 9.4, and 10.4 are met. These sections contain the mandatory provisions of the standard and are prerequisites for this rating method...