Page 163 - GRIHA Manual Volume IV - Introduction to National Rating System
P. 163
154 Griha Manual: Volume 4
# Prevent any disruptive failures in the building’s electrical and mechanical systems.
# Maintain required standard of the indoor environment and enhance user productivity.
# Prolong the life of the equipments and systems.
Regular monitoring through metering
Regular monitoring is one of the key aspects of O&M of any building. To ensure regular monitoring
it is necessary to install digital meters for continuous recording of data that can be examined any
time to evaluate performance of the system.
Below is a description of some of the common types of meters.
Electric meter: It is a tool to measure the amount of electrical energy that is being consumed by a
building or an electrical device. Depending on the location where an electrical meter is installed, it
can be used to measure total energy units that are being purchased by the utility, electrical energy
being generated on site through diesel generator set, and so on. To measure electricity consumed
by specific end-uses like HVAC plant, lighting, and so on electrical sub meters can be installed.
BTU meter: BTU is the acronym for British Thermal Unit, which is a traditional unit of energy. BTU
meters are used for thermometric billing as they measure heat in terms of BTU. These meters are
used for measuring energy consumption of heating and cooling systems. By installing BTU meters
at individual chillers, cooling generated by individual chillers can be measured and by installing the
BTU meter on the chilled water loop, building’s total cooling demand can be measured.
Water meter: Water meters are used to measure the volume of water consumed. Water meters help
in monitoring the water usage pattern of the building or facility.
GRIHA speciic information
Objective
To ascertain efficient 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.
# Prevent any disruptive failures in the building’s electrical and mechanical systems.
# Maintain required standard of the indoor environment and enhance user productivity.
# Prolong the life of the equipments and systems.
Regular monitoring through metering
Regular monitoring is one of the key aspects of O&M of any building. To ensure regular monitoring
it is necessary to install digital meters for continuous recording of data that can be examined any
time to evaluate performance of the system.
Below is a description of some of the common types of meters.
Electric meter: It is a tool to measure the amount of electrical energy that is being consumed by a
building or an electrical device. Depending on the location where an electrical meter is installed, it
can be used to measure total energy units that are being purchased by the utility, electrical energy
being generated on site through diesel generator set, and so on. To measure electricity consumed
by specific end-uses like HVAC plant, lighting, and so on electrical sub meters can be installed.
BTU meter: BTU is the acronym for British Thermal Unit, which is a traditional unit of energy. BTU
meters are used for thermometric billing as they measure heat in terms of BTU. These meters are
used for measuring energy consumption of heating and cooling systems. By installing BTU meters
at individual chillers, cooling generated by individual chillers can be measured and by installing the
BTU meter on the chilled water loop, building’s total cooling demand can be measured.
Water meter: Water meters are used to measure the volume of water consumed. Water meters help
in monitoring the water usage pattern of the building or facility.
GRIHA speciic information
Objective
To ascertain efficient 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.
