Page 74 - GRIHA Manual Volume V - Introduction to National Rating System
P. 74
Evaluation procedure 67
4) review manufacturer’s cut sheets for solar water heating system to check if the size and
minimum eiciency requirement of the solar water heating system is as per ECBC 2007.
5) review manufacturer’s cut sheets for lighting controls to check if the lighting controls have
been installed as per the eCbC requirement.
6) review manufacturers cut sheets for transformers to check whether the losses during
50% and 100% loading are within limit mentioned in table 8.1 and table 8.2 of eCbC 2007,
respectively.
7) Review manufacturers cut sheets for motors to check if the eiciency of motors complies
with nominal eiciencies, ef1 of IS12615, speciied in ECBC 2007.
Possible errors
1) the narrative and drawings may describe compliance with the mandatory provisions of
eCbC but the actual specifications (in the manufacturers cut sheets) may differ from what is
written in the narrative.
Point allocation
Six mandatory points should be awarded if compliance with all mandatory requirements of eCbC
2007 and prescriptive ShgC (with corresponding window wall ratio) is demonstrated.
Appraisal 14.3.2
Compliance with thermal comfort conditions as per the national building Code 2005 as per clause
14.1.2 and achievement of benchmark for energy performance index (ePi) as per clause 14.1.5 or
14.1.6 or 14.1.7 (2 points mandatory)
Required documentation
1) annual predicted energy performance for the buildings and the unmet comfort conditions
for non-air-conditioned area as per table 14.7 and 14.8, supported by the simulation results
from the software used.
Review checklist
1) Check the percentage of comfort hours for non-air-conditioned areas (only living spaces) as
specified in clause14.1.3.
2) Check the simulation model to see that the building and systems data is as specified in the
supporting documentation.
3) Check the simulation model to see that the occupancy schedules (lighting, equipment, and
people) are as specified in the supporting documentation.
4) Check that predicted annual energy performance of only lighting and hvaC has been
considered while calculating the building ePi.
5) Check that the built up area considered for ePi calculation is the actual built up area.
6) review the benchmark ePi calculations especially for mixed spaces (aC and non-aC spaces
both).
7) in case the building operating hours differ from that mentioned in table 14.1 of griha
Criterion 14 (for example a building that operates for 10 hours daily for six days a week),
check if the following procedure has been adopted for calculating the ePi benchmark of the
building.
4) review manufacturer’s cut sheets for solar water heating system to check if the size and
minimum eiciency requirement of the solar water heating system is as per ECBC 2007.
5) review manufacturer’s cut sheets for lighting controls to check if the lighting controls have
been installed as per the eCbC requirement.
6) review manufacturers cut sheets for transformers to check whether the losses during
50% and 100% loading are within limit mentioned in table 8.1 and table 8.2 of eCbC 2007,
respectively.
7) Review manufacturers cut sheets for motors to check if the eiciency of motors complies
with nominal eiciencies, ef1 of IS12615, speciied in ECBC 2007.
Possible errors
1) the narrative and drawings may describe compliance with the mandatory provisions of
eCbC but the actual specifications (in the manufacturers cut sheets) may differ from what is
written in the narrative.
Point allocation
Six mandatory points should be awarded if compliance with all mandatory requirements of eCbC
2007 and prescriptive ShgC (with corresponding window wall ratio) is demonstrated.
Appraisal 14.3.2
Compliance with thermal comfort conditions as per the national building Code 2005 as per clause
14.1.2 and achievement of benchmark for energy performance index (ePi) as per clause 14.1.5 or
14.1.6 or 14.1.7 (2 points mandatory)
Required documentation
1) annual predicted energy performance for the buildings and the unmet comfort conditions
for non-air-conditioned area as per table 14.7 and 14.8, supported by the simulation results
from the software used.
Review checklist
1) Check the percentage of comfort hours for non-air-conditioned areas (only living spaces) as
specified in clause14.1.3.
2) Check the simulation model to see that the building and systems data is as specified in the
supporting documentation.
3) Check the simulation model to see that the occupancy schedules (lighting, equipment, and
people) are as specified in the supporting documentation.
4) Check that predicted annual energy performance of only lighting and hvaC has been
considered while calculating the building ePi.
5) Check that the built up area considered for ePi calculation is the actual built up area.
6) review the benchmark ePi calculations especially for mixed spaces (aC and non-aC spaces
both).
7) in case the building operating hours differ from that mentioned in table 14.1 of griha
Criterion 14 (for example a building that operates for 10 hours daily for six days a week),
check if the following procedure has been adopted for calculating the ePi benchmark of the
building.
