This section gives the report and details of calculation for the credit NRB 1-2. It calculates automatically the points for NRB 1-2 (a), (b) and (c). The other 4 points attributed from (d) to (g) are supposed to be validated automatically in the point report.
For the air-side fan efficiency, the CAV and VAV fans will be considered separately in relation to their respective baselines efficiencies. The points results for these two types will then be pro-rated according to the total flow of each type.
Example: A building has 6 CAV fans, 2 points are scored under this type. It also has 5 VAV fans, 4 points are scored under this type. The total flow rate for the CAV fans is 3,000L/s. The total flow rate for the VAV fans is 7,000L/s. The total points for this building under the air-side efficiency section is 2*(3,000/10,000)+4*(7,000/10,000) = 3.4 points.
