Monitoring based Commissioning in LEED V 4
- November 25, 2017
- Posted by: Bazeeth Ahamed K M
- Category: Blog,
Monitoring based commissioning is a new inclusion in LEED V4. Projects can score upto 6 points in Enhanced Commissioning out of which 1 point is awarded for implementing Monitoring based commissioning. In this article we will elaborate Monitoring based commissioning
The point’s distribution in Enhanced commissioning as below
Enhanced Commissioning – 3 Points
Enhanced Commissioning + Monitoring based Commissioning – 4 points
Building Envelope Commissioning only – 2 points
Enhanced Commissioning + Monitoring based Commissioning + Building Envelope Commissioning – 6 Points
What is Monitoring based Commissioning?
Monitoring-based commissioning is the integration of three components:
- Permanent energy monitoring systems,
- Real-time energy analysis, and
- Ongoing commissioning.
Permanent Energy Monitoring System: In order to pursue monitoring based commissioning the first there should a Permanent energy monitoring system in addition to conventional building management system. The monitoring system is used log the trend of key parameters such as equipment ON time, Valve position, damper position, Energy Consumption etc
Real-time energy analysis: The logged data is then compared with the ideal or basecase trend. Any deviation in performance would trigger an alert that the system is not performing as per the intended operation.
For example: If the outside temperature is less the design supply temperature and chilled water valve is open in an AHU. It indicates that economizer is not operational. The economizer allows the fresh air to flow into the space and shuts off the chilled water valve to get free cooling.
The real-time analyses can be performed by either a service provider who provides the software and hardware required for monitoring system or by building Manager/Engineer
Ongoing commissioning is an extension of projects performance testing to ensure the system performs as per the Owners Project Requirement and the design intent continuously.