Energy Efficiency Via
Presented By: Paul Marubashi, P. Eng.
Senior Account Executive
1
What is a Building Automation System?
Building automation systems (BAS) are networks of microprocessor
controls that:
control the climate in the building
supervise and control the heating, ventilation, and air conditioning
equipment
perform facility management (generate reports, graphs and
annunciate alarms when there is a problem)
perform energy management strategies to reduce operating and
energy costs.
integrate building systems such as security, fire alarm, lighting
controls,etc.
2
Typical BAS Architecture
Web Server
LAN
Hub
Web Browser
Router
BACnet Systems
Pager or PDA
Equipment Control & Monitoring
3
Benefits of Building Automation
Allows building managers to monitor and control one or many
facilities.
System adjustments and problem resolution can be accomplished
either on-site or remotely saving time and money.
Decreased equipment down time due to equipment alarm
notification and ability to take action from a remote location.
Improved service diagnostics allow preventive measures to be taken
before equipment failure
Reduced comfort complaints from tenants/employees
Improved staff maximization and training between facilities
Seamless integration of key facility systems and control devices
Reduced energy use!
ROI – Typically 2 to 5 years
4
5
BAS Based on Open Systems Standards
LAN
I/A Enterprise
Browser
Hub Server
Router
Web Web
Controller Controller
Programming/Service
Tools
Existing
Pager or PDA
Proprietary BAS
Equipment
Controllers
MODBUS Device MODBUS Device
Equipment
Controllers
6
Open Systems Defined
Computer Systems Evolution
Main Frame Computer Networked Stand Alone PCs
Closed, Locked in to One Supplier Open, Multiple Hardware Providers
High, Non Competitive Support Costs Low, Multi-Vendor Support
7
Conventional Versus Open Protocol Buildings
• Redundant components • No Redundant components
• Isolated systems result in wasted • Open systems allow full information
energy sharing
• High Operations & Maintenance • Low Operations & Maintenance Costs
Costs
8
Conventional Automation Approach
Major equipment is supplied with integral proprietary controls & sensors
BAS contractor adds their own proprietary controls and sensors to monitor &
control equipment
BAS controls are accessed using a proprietary PC Interface
9
Conventional Automation Approach
Typical Monitoring & Control Points (9)
1. Start/Stop 7. Chilled Water Temp. Adjust
2. Status 8. Chiller % Capacity Limit Adjust
3. Chilled Water Supply Temp. 9. Chiller Panel Alarm
4. Chilled Water Return Temp.
5. Condenser Water Supply Temp.
6. Condenser Water Return Temp.
10
Open Systems Automation Approach
Single Communication
Cable Connection
Major equipment is supplied with integral open protocol controls
System Integrator networks all of the major equipment controllers together
System Integrator integrates control points to a BAS
BAS is accessed from any PC using Microsoft Explorer
11
Open Systems Automation Approach
Monitoring & Control Points Available (33)
1. Start/Stop 6. Condenser Water Return Temp.
2. Status 7. Chilled Water Temp. Adjust
3. Chilled Water Supply Temp. 8. Chiller % Capacity Limit Adjust
4. Chilled Water Return Temp. 9. Chiller Panel Alarm with
5. Condenser Water Supply Temp. Description
12
Direct Energy BAS Solutions
Controls:
HVAC
Lighting
Our solutions are Security
designed for both Power Quality
specific building Web Based Energy Monitoring
requirements
and overall
Demand Response
corporate standards
Services:
Custom Design & Installation
Integration of Different Systems
Maintenance & Service
Remote Monitoring with Alarm & Trending
13
Graphical User Interface
14
BAS Supervisory Functions
Alarm Reporting and Supervisory Control
Chiller #1 in
Alarm
15
Alarm Logging & Notification
16
Alarm Handling
• Designed for both Single Site and • Each site can have a unique filter, which
Enterprise solutions allows for regionalized alarm management.
• Any number of sites can be configured • Full password access to restrict
to receive/acknowledge alarms acknowledgement, viewing, etc
17
Trend Logs & Charts
18
Energy Reporting
To your Desktop…
Getting from the
meter…
19
Maintenance Alerts
20
Direct Energy Preventive Maintenance Programs
Service
• Preventative Maintenance – Scheduled & Planned
• Demand Service
– 24/7 on call service response
– Unscheduled service response
• Remote site monitoring
• Operation Support Centre Service Helpdesk
21
Technology & Solutions Team
Our professionals have built some of the largest energy
management and services projects in the industry ranging from
from schools, arenas, municipal buildings and armed forces
bases to hospitals, commercial office buildings, hotel and resort
complexes both in and outside Canada.
22
Technology & Solutions Team
Construction & Controls Specialists
from $3k to $15M in project size
Technical Specialists
Energy Specialists
23
Just a few of our client partnerships:
24
