Intent 1:
To limit the probably that a heating, ventilating
or air-conditioning system will be designed and installed without
the necessary controls capable of
- shutting down fan systems, heating and cooling equipment
and/or auxiliaries, where appropriate, when the space does not require
conditioning,
- setting back the space-heating temperature set-point
when appropriate for operational needs,
- setting up the space-cooling temperature set-point when
cooling system operation is required during periods when the space
is not in use,
- reducing or shutting off outdoor air intake during heating
or cooling system operation when the space is not in use, which could
lead to the unnecessary use of heating or cooling energy to temper
outside air, and
- in the case of heat pumps, temporarily suppressing electrical
back-up or adaptive anticipation of the recovery point, which could
lead to the unit resorting to supplementary heat at the time of recovery.
This is to limit the probability of
unnecessary consumption of energy for heating and cooling, which could
lead to excessive use of energy, which could lead to an unacceptable
effect on the environment.