Page 142 - GRIHA Manual Volume V - Introduction to National Rating System
P. 142
Evaluation procedure 135



CRIteRIon 33








opeRAtIon And MAIntenAnCe





GRIHA-speciic information


Objective

To ascertain eicient functioning of the building’s systems through regular monitoring of
building’s energy and water consumption and implementation of appropriate operation o&m
programme.

33.1 Commitment

33.1.1 ensure regular monitoring of the building’s energy and water consumption by installing
digital meters as per the following
1. electrical meters installed to measure energy units purchased from the utility and
energy units generated on site (through dg/ gg sets).
2. electrical sub-meters for measuring energy consumption by hvaC plant, ahu fans,
and indoor lighting.
3. btu meters to be installed for each chiller at the entry and leaving points to measure
the cooling generated by chillers.
4. btu meter to be installed on the chilled water loop to measure the building’s total
cooling demand.
5. water meter should be installed at all main supply points to measure the total water
consumption of the building.
33.1.2 Provide a core facility/service management group that will be responsible for the o&m of
the building’s electrical and mechanical systems after installation. in case of small-scale/
single-owner commercial buildings, the owner or the occupants themselves should
undertake the responsibility for the o&m of the building’s systems after installation.
33.1.3 ensure a specific clause in the contract document of the systems supplier for the
commissioning (installation and test run) and systematic handing over of all electrical
and mechanical systems to the core facility/ service group responsible for the o&m of
the building systems after installation.
33.1.4 include a specific clause in the contract document of the systems suppliers for providing
training to the core facility/ service group responsible for the o&m of the building
systems after installation, on the operating instructions/dos and don’ts/ maintenance
requirements of the specific systems.
if the systems supplier themselves have been assigned the responsibility of the
o&m after system installation, this clause is not applicable.
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