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BEAM P
LUS FOR
N
EW
B
UILDINGS
E
NERGY
U
SE
(E
U
)
V
ERSION
1.2
E
U
12 M
ETERING AND
M
ONITORING
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 117
4
E
NERGY
U
SE
4.4
P
ROVISIONS FOR
E
NERGY
M
ANAGEMENT
E
U
12 M
ETERING AND
M
ONITORING
E
XCLUSIONS
None.
O
BJECTIVE
Enable building operators to measure, monitor and develop measures to
improve the performance of the building’s engineering systems,
particularly concerning energy use.
C
REDITS ATTAINABLE
1
P
REREQUISITES
As a prerequisite metering provisions shall meet the requirements of the
Government’s energy codes.
C
REDIT REQUIREMENT
1 credit for installation of:
metering that allows monitoring of electricity use by the main chiller plant
and auxiliaries;
instruments for monitoring building cooling load and operating
parameters of the central chiller plant;
metering that allows separate monitoring of electricity use by the air side
of the HVAC system; and
metering for landlord’s electricity consumption in common space/public
areas.
A
SSESSMENT
The Owner/Operator shall provide details of the measuring and
monitoring equipment installed and commissioning records of
consumption and chiller plant performance, to demonstrate that
electricity use and performance can be monitored as stipulated.
Monitoring of central chiller plant will be assessed on the basis of BSRIA
Technical Note TN 7/94 [ 1 ] or similar specification published by an
appropriate authority. The monitoring system shall allow the overall
performance of the plant and individual chillers to be determined for all
operating modes and range of operating conditions.
Electricity metering (for input power, energy and maximum demand),
together with associated measuring transducers/transformers for
indicating power and energy, shall comply with an appropriate standard
such as BS EN [ 2 ] and to at least accuracy class 1. Sensors for
temperature, flow rate and pressure measurements shall meet the
minimum accuracy requirements in ASHRAE Standard 114 [3] or similar
equivalent.
Metering provision shall identify electricity use patterns for major air
handling equipment, such as centralised air handling units for
floors/zones, large designated areas, etc.
Metering provision shall identify the electricity use pattern for each major
system, fed from the Owner/Operator’s main switchboard(s), i.e.,
landlord’s lighting and small power, transportation, plumbing & drainage
systems, major air handling equipment, such as centralised air handling
units for floors/zones, large designated areas, etc.
1
K Calder. The Building Services Research and Information Association. Practical Chiller System Monitoring. Technical
Note TN 7/94. 1994.
2
British Standard BS EN 60521:1995. Class 0.5, 1 and 2 alternating-current watthour meters.
3
ASHRAE. Standard 114-1986: Energy Management Control Systems Instrumentation, American Society of Heating,
Refrigerating and Air-conditioning Engineers, Inc., USA. 1987.