The Building Operations Scorecard System (BOSS)
evaluates buildings on comfort, efficiency, and
operations perspectives. The process involves
looking at each individual space and each mechanical
system and subsystem over a period of at least a
week. The scorecard provides a complete view of the
building enabling recommendations to address global
problems as well as isolated issues. Buildings can
quickly be re-scored to measure progress based on
operational corrections made and also to validate
the building's performance as seasons change. It is
a systematic approach to a building that delivers
comfort, at the lowest possible cost, with minimal
labor required to keep it that way all year long.Comfort
The Room Scorecards include a pass/fail comfort
rating for each room/zone in the building. IDS
evaluates comfort based solely on temperature; it
does not evaluate humidity or ventilation. A room
will receive a failure rating if any of the
following are found:
- Space temperature is above 76°F or below
68°F
- Space temperature setpoint is at or above
76°F, or at or below 68°F
- Space temperature varying more than 3°F from
setpoint or going more than 0.5°F outside of the
space temperature deadband
Subsystem Scorecards apply pass/fail ratings
based on that equipment/system’s impact on comfort
in the spaces it serves. In instances where a
comfort rating does not make sense for the
equipment/subsystem in question, it is left blank.
Efficiency
Scorecards rate the energy efficiency of each
room/zone, and each subsystem, on a pass/fail basis.
Rooms will receive a failure rating if any of the
following conditions are seen:
- Simultaneous heating and cooling when
unnecessary
- Reheat occurring when box CFM is not at
cooling minimum
- Reheat occurring when box CFM is at cooling
minimum, but minimum is too high for space and
not required to meet ventilation requirements
Other equipment/systems each have their own
efficiency criteria, for example, an air handler
with faulty economizer controls.
Operations
Operations are rated based on the performance of
the relevant equipment. In the case of rooms, it is
the VAV or other terminal box. Operations fail under
any of the following:
- Sensors that are not functioning or are
clearly out of calibration
- Missing sensor input (sensor/point is not
present)
- Widely oscillating parameters
- Spiked values due to bad data readings
(e.g., room temperature of 400°F)
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