1. The Changing Environment of Building Automation
Bill Swan
Alerton

2. The Need to Save Energy Drivers

3. Saving Energy With Your BAS Primary References and Topics

4. Saving Energy With Your BAS Primary References and Topics
ASHRAE Standards
ASHRAE
ASHRAE 189.1P (3rd public review)
USGBC 2009 Rating Systems & Ref. Guides
LEED for Commercial Interiors
LEED for Core & Shell
LEED for Green Buildings: O&M
LEED for New Construction
LEED for Schools

5. Saving Energy With Your BAS Primary References and Topics
ASHRAE Advanced Energy Design Guides
(30% reduction from ASHRAE )
Small Office Buildings
Small Retail Buildings
K-12 School Buildings
Other
ASHRAE GreenGuide

6. Saving Energy With Your BAS Primary References and Topics
Potable Water
Lighting
HVAC Controls
Hydronic Systems
Testing, Calibration and Cx
Metering, Measurement and Verification
Integrated Systems

7. Saving Energy With Your BAS Potable Water
(PW)

8. Saving Energy With Your BAS Potable Water
Issues:
7 – 8% of U.S. energy spent to treat and transport water
Highest-quality PW used for low-quality purposes
Fresh water sources limited and unequally distributed
Increasing demand for water may outstrip sources
Strategy: Reduce potable water use
Greywater re-use
Rainwater harvesting
A/C condensate collection
Use collected water for
Flushing
Irrigation
Cooling tower make-up

9. Saving Energy With Your BAS Potable Water
The BAS contribution:
Monitor tank water level
If empty, switch to municipal water
Control pump(s)
Accumulate filter runtimes
Meter potable water usage
Meter non-potable water usage
Monitor soil moisture sensors for irrigation
Other controls for cooling-tower water management
Note: Savings show up on water bills, not energy

10. Saving Energy With Your BAS Potable Water
Potable Water-Use Reduction
LEED-CI Required: 20% reduction
LEED-CS “
LEED-NC “
LEED-Schools “
LEED-CI Credit: (30%-40% reduction, 6-11 pts)
LEED-CS Credit: (30%-40% reduction, 2-4 pts)

11. Saving Energy With Your BAS Potable Water
Water-Efficient Landscaping
LEED-CI Credit: (50%-100% reduction, 2 or 4 pts)
LEED-CS Credit: “
LEED-Schools Credit: “
LEED-EB Credit: (50%-100% reduction, 1-5 pts)
(1-5 pts) 50% to 100% reduction
Innovative Wastewater Technologies
LEED-CI Credit: (50% less PW for sewage, 2 pts)
LEED-CS Credit: “
LEED-NC Credit: “
LEED-Schools Credit: “

12. Saving Energy With Your BAS Potable Water
Stormwater (Design): Quantity Control
LEED-CS Credit: (1 pt)
LEED-EB Credit: “
LEED-NC Credit: “
LEED-Schools Credit: “ (+ extra credit)
Cooling Tower Water Management
LEED-EB Credit: Chemical Management (1 pt)
LEED-EB Credit: 50% non-PW (1 pt)

13. Saving Energy With Your BAS Potable Water
Metering, Measurement & Verification
LEED-EB Credit: meter building and grounds (1 pt)
189.1P Meter building and grounds ( )
LEED-EB Credit: meter end-uses (1 pt)
189.1P Meter end uses ( )
189.1P Store meter data, issue reports ( )

14. Saving Energy With Your BAS Potable Water
Greywater:
Wastewater from showers, baths, non-food sinks
Not “blackwater,” containing organic or toxic matter
Defined by local health codes
Can only be held for a short time
Use where high ratio water demand nonpotable:potable
Restaurants
Laundries
Hotels

15. Saving Energy With Your BAS Potable Water
Greywater re-use pluses:
Less demand on municipal water supply
Less demand on municipal sewage system
Lower water costs
Greywater re-use minuses:
High initial costs
Ongoing maintenance costs

16. Saving Energy With Your BAS Potable Water
Rainwater and condensates:
Rain collected from impermeable surfaces such as roofs
Pluses:
Lower water costs
Reduce or eliminate stormwater treatment & conveyance
Minuses:
High initial costs
Ongoing maintenance costs
Local/state codes have jurisdiction

17. Saving Energy With Your BAS Lighting

18. Saving Energy With Your BAS Lighting
Issues:
~11% of U.S. electricity for commercial building lighting*
Lighting often left on when and where not needed
Lighting not always optimal for occupants
Excessive light to exterior causes light pollution
Strategies: Reduce lighting
Turn lights off when not needed
Scheduling
Occupancy sensors
Individual controls
Exterior lighting
Reduce lighting to minimum need
Dimming
Daylighting
* Source: U.S. Department of Energy

19. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Scheduling
Use where occupancy times are regular and known
Provide (individual) on-time overrides
Provide (zone/room) off-time overrides with timeout
Unify with the BAS/EMCS scheduling system

20. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Scheduling
90.1, “Automatic Lighting Shutoff” ( )
Shut off building lighting on a scheduled basis
90.1, “Space Control” ( )
Override of scheduled-off up to 4 hours allowed
189.1P, “Controls for Outdoor Lighting” ( )
Turn off 50+% (certain) exterior lighting “when not needed”
189.1P, “…Egress and Security Lighting” ( )
Lighting >5 W/m2 controlled by time switch

21. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Scheduling
“Light Pollution Reduction”:
Non-emergency lighting visible to exterior reduced 50+%
Override up to 30 minutes okay
LEED-CI: Credit: (Reduce 11PM – 5 AM,1 pt)
LEED-CS “
LEED-NC “
LEED-Schools “

22. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Scheduling
ASHRAE Advanced Energy Design Guides:
AEDG – Small Office Buildings
EMCS “can be used to schedule… outdoor lighting…”

23. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Occupancy Sensors
Two basic types:
Passive Infrared (PIR)
Direct view
Ultrasonic
Indirect sensing (restrooms, etc.)
May be sensitive to strong airflow
Sensors are optimized per application.
Read the manufacturers’ literature!
Workspaces:
Look-down ceiling sensor for small-motion work is best

24. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Occupancy Sensors
90.1, “Automatic Lighting Shutoff” ( )
Shut off lighting 30 minutes after space unoccupied
90.1, “Space Control” ( )
Shut off lighting 30 minutes after space unoccupied in classrooms, conference rooms, lunch & break rooms

25. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Occupancy Sensors
189.1P, “Occupancy Sensor Controls” ( )
Lists room types that shall have occupancy detectors
Automatic and manual shutoff required
Specifies dimming and daylighting operation
189.1P, “…Multi-Level Switching or Dimming” ( )
(Where and how occupancy sensors interact)
189.1P, “Manual-ON” Occupancy Sensors ( )
Occupancy sensors shall be manual-on/automatic-off

26. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Occupancy Sensors
“Light Pollution Reduction”:
Non-emergency lighting visible to exterior reduced 50+%
Occupancy detector override up to 30 minutes okay
LEED-CI: Credit: (Reduce 11PM – 5 AM,1 pt)
LEED-CS “
LEED-NC “
LEED-Schools “

27. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Occupancy Sensors
ASHRAE Advanced Energy Design Guides:
Small Office Buildings (& Small Retail)
Use manual-on/automatic-off sensors
In daylit spaces use manual-on sensors (+ task lamps)
In open-plan offices:
Ceiling-mounted ultrasonic sensors
Revert to manual-on after manual- or automatic-off
In private offices:
IR wall-box sensors
Generally sensors should be medium to high sensitivity
15-minute delay to turnoff (lamp life vs. energy savings)

28. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Individual Controls
Individual controls gives control over workspace
Greater satisfaction through better control
Provide lower-energy task lighting
“Controllability of Systems, Lighting”:
Individual controls for 90% (workspace) occupants
Controls for shared multi-occupant spaces
LEED-CI: Credit: (1 pt)
LEED-EB: Credit: (50% occupants & shared, 1 pt)
LEED-NC: Credit: (1 pt)
LEED-Schools: Credit: (+ learning spaces, 1 pt)

29. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Exterior Lighting
Dim and/or turn off exterior lighting when not needed
Building facades, parking lots, garages etc.
90.1, “Exterior Lighting Control” ( )
Lighting not for dusk-to-dawn operation controlled by:
Combination of photosensor and time switch, or
Astronomical time switch
189.1P, “Controls for Outdoor Lighting” ( )
Continuous dimming at least 50% to 80% reduction, or
25% to 50% reduction of continuous-dimmed HID sources

30. Saving Energy With Your BAS Lighting
Turn unneeded lights off: Exterior Lighting
ASHRAE Advanced Energy Design Guides:
AEDG – Small Office Buildings
Use photocell or astronomical time switch
EMCS can schedule and manage outdoor lighting
When building unoccupied, turn off non-security lighting

31. Saving Energy With Your BAS Lighting
Reduce lighting to minimum need: Daylighting
Adjust lighting for desired levels in daylit zones
Use photosensors to set lighting level
Pluses:
Reduced energy costs (possibly 60+%) *
Extends lighting maintenance cycle up to 3x *
Minuses:
Increased initial cost
Needs close architectural, structural and lighting design
* Source: ASHRAE GreenGuide

32. Saving Energy With Your BAS Lighting
Reduce lighting to minimum need: Daylighting
189.1P, “…Lighting in Daylight Zones” ( )
Reduce lighting power in response to available daylight:
By continuous dimming, or
Combined stepped switching and daylight sensing
“…Energy Performance, Lighting Controls”:
LEED-CI: Credit: (within daylight zones, 1 pt)
Credit: (50+% of connected load, 1 pt)
Credit: (75+ of connected load, 1 pt)

33. Saving Energy With Your BAS Lighting
Reduce lighting to minimum need: Daylighting
ASHRAE Advanced Energy Design Guides:
AEDG – Small Office Buildings
In offices, dim instead of switch to minimize distraction
Switching may be used in non-office environment
Consider more switching levels than minimum
Avoid checkerboard or non-uniform patterns
Sensor must be properly specified for situation
Sensor best installed in window frame or skylight well
Controls must be commissioned after furniture in place
Most sensors require day- and night-time calibration
Poor calibration can lead to permanent override

34. Saving Energy With Your BAS Lighting
Reduce lighting to minimum need: Daylighting
ASHRAE Advanced Energy Design Guides:
AEDG – Small Retail
In sales areas, dim instead of switch to minimize distraction
Switching may be used in non-sales environment
Sensor best installed in skylight well
AEDG – K-12 Schools
Sensor must be properly specified for situation
Closed-loop sensor installed above unobstructed location
Open-loop sensor best installed in skylight well
Consider today’s requirements of video image projection

35. Saving Energy With Your BAS HVAC Controls

36. Saving Energy With Your BAS HVAC Controls
Issues:
<25% of commercial building floor space has an EMCS *
Just 13 BAS faults account for 4-20% total energy use**
Strategy: Save energy by:
Greater use of schedules and other means for shutdown
Ventilate only as needed
Use more efficient heating and cooling strategies
Reducing equipment runtimes
Efficiently unloading equipment
Automated fault detection and diagnostic systems
* Source: Commercial Building Energy Consumption Survey (CBECS) 2003, Energy Information Administration
** Source: “Energy Impact of Commercial Building Controls and Performance Diagnostics,” TIAX LLC 11/2005

37. Saving Energy With Your BAS HVAC Controls
Use Less Energy!
LEED-CI, “Optimize Energy Performance, HVAC”:
1. Install HVAC systems with specified efficiency requirements (5 pts), with appropriate zoning and controls (5 pts).
2. Demonstrate HVAC component performance 15% (5 pts) or 30% (10 pts) better than
AEDG Small Office & Retail, “Control Strategies”
Short summary of strategies including time-of-day scheduling, setback temperatures, etc.

38. Saving Energy With Your BAS HVAC Controls
Off-Hour Controls
90.1, “Off-hour controls”: ( )
HVAC systems shall comply with
“Automatic Shutdown”
“Setback Controls”
“Optimum Start Controls,” and
“Zone Isolation.”
90.1, “Automatic Shutdown”: ( )
HVAC systems shall have at least one of:
Time schedules (7 days), 2 hour manual override
Occupant sensor shutdown 30 minutes no occupancy
Manually-operated timer up to 2 hours
Shutdown on security system activation

39. Saving Energy With Your BAS HVAC Controls
Off-Hour Controls
90.1, “Setback Controls”: ( )
Heating systems in climate zones (2-8) shall be capable of maintaining zones at 55°F or lower.
Cooling systems in (dry) climate zones 1b, 2b and 3b shall be capable of maintaining zones at 90°F or higher to prevent high humidity levels.
90.1, “Optimum Start Controls”: ( )
Heating and cooling systems > 10,000 cfm shall have optimum start controls.
90.1, “Zone Isolation”: ( )
Zones to be operated or occupied non-simultaneously shall be isolated.

40. Saving Energy With Your BAS HVAC Controls
Off-Hour Controls
90.1, “Shutoff Damper Controls”: ( )
Outdoor air supply and exhaust systems shall have motorized dampers that will shut when spaces served are not in use. (Exceptions for preoccupancy warm-up, cool down, code requirements, etc.)
90.1 summary:
HVAC systems shall have:
Methods for automatic shutdown,
Specific setback requirements depending on climate,
Optimum Start capability,
Isolation of zones used/occupied at different times, and
Motorized dampers to be closed when spaces not used.

41. Saving Energy With Your BAS HVAC Controls
CO2 Sensors
90.1, “…Controls for High-Occupancy Areas”: ( )
Demand-controlled ventilation (DCV) is required for spaces > 500 ft2 and 40+ people/1000 ft2 (and served by air-side economizer, modulating outdoor air damper, or outdoor airflow >3000 cfm).
189.1P, “…Controls for High-Occupancy Areas”: ( )
Supersedes 90.1 DCV requirements. DCV shall comply with ASHRAE 62.1.
189.1P, “Naturally-Ventilated Spaces”: ( )
Densely-occupied spaces require CO2 monitoring. (Installation details included.)

42. Saving Energy With Your BAS HVAC Controls
CO2 Sensors
189.1P, “CO2 Sensors”: ( )
Installation details and requirements for CO2 sensors, including accuracy to ±50 ppm at 1000 ppm. Outdoor CO2 may be measured near outdoor air intake or assumed to be 400 ppm.
and 189.1P summary:
90.1 requires DCV for high-occupancy areas.
189.1P supercedes 90.1 DCV requirements, specifies CO2 sensor installation and requirements.
LEED-Schools, “Outdoor Air Delivery Monitoring”:
Naturally ventilated and densely-occupied spaces (25+ people/1000 ft2) require CO2 monitoring. (1 pt)

43. Saving Energy With Your BAS HVAC Controls
CO2 Sensors
AEDG Small Office, “Ventilation Air”
DCV should be used in varying and high-occupancy areas and may use CO2 sensors. See “Carbon Dioxide Sensors.”
AEDG Small Office & Retail, “Carbon Dioxide Sensors”
Recommends sensor locations and density, and use of multiple sensors. DCV should maintain CO2 at ≤ 600 ppm over outdoor CO2, but should not exceed limits set by code. Outdoor CO2 may be measured near outdoor air intake or assumed to be 400 ppm.
CO2 sensors should have an accuracy no less than 75 ppm.

44. Saving Energy With Your BAS HVAC Controls
Ventilation Monitoring
189.1P, “…Ventilated by Mechanical Systems”: ( )
In VAV systems direct total outdoor airflow to be monitored down to minimum outdoor airflow rate, with accuracy of 15% of minimum outdoor airflow rate.
Issue alarms when flow rates are not in compliance.
LEED-Schools, “Outdoor Air Delivery Monitoring”:
Monitor ventilation system performance, with alarms on variance of 10% or more from design. (1 pt)

45. Saving Energy With Your BAS HVAC Controls
Economizers
90.1, “Design Capacity”: ( )
Air economizers shall be capable of modulating the outdoor air and return air dampers to provide up to 100% of the design air supply quantity, using outdoor air for cooling.
AEDG Small Office & Retail Buildings, “Economizers”
Economizers, when recommended, help save energy... Consider using enthalpy controls to avoid introducing unwanted moisture in hot, humid climates.
AEDG Small Office Buildings, “Ventilation Air”
The systems should be capable of modulating the outdoor air, return air and relief dampers to provide up to 100% of the design air supply quantity, using outdoor air for cooling.

46. Saving Energy With Your BAS HVAC Controls
No Unnecessary Heating
90.1, “Heat Pump Auxiliary Control”: ( )
Heat pumps with (supplemental) heaters shall have control to prevent supplemental heating when heat load can be met by the heat pump alone during steady-state operation and setback recovery.
Supplemental heating is permitted during outdoor air defrost cycles.
90.1, “Humidifier Preheat”: ( )
Humidifiers with preheating jackets in the airstream shall shutoff preheat when humidification is not required.

47. Saving Energy With Your BAS HVAC Controls
Individual Controls
“Controllability of Systems, Thermal Comfort”:
Individual controls for 50% (workspace) occupants
Controls for shared multi-occupant spaces
LEED-CI: Credit: (1 pt)
LEED-CS: “
LEED-NC: “
LEED-Schools: “

48. Saving Energy With Your BAS HVAC Controls
Prevent Opposed Operations
90.1, “Zone Controls”: ( )
Zone controls shall … prevent reheating, recooling, mixing or simultaneously supplying air that is mechanically heated and air that has been cooled mechanically or by economizers, and other simultaneous heating and cooling.
90.1, “Humidification and Dehumidification”: ( )
Prevent simultaneous operation of humidification and dehumidification equipment.
90.1, “Dehumidification”: ( )
Humidification controls shall prevent mixing hot and cold airstreams, and simultaneous air stream heating and cooling.

49. Saving Energy With Your BAS Hydronic Systems

50. Saving Energy With Your BAS Hydronic Systems
90.1, “Three-Pipe System”: ( )
A common return system for both hot and chilled water shall not be used.
90.1, “Two-Pipe Changeover System”: ( )
Common distribution for heated and chilled water may be used if:
Changeover deadband is ≥15°F outdoor air temp,
System operates 4+ hours before changeover, and
Heating and cooling supply temps ≤30°F at changeover.
90.1, “Hydronic … Heat Pump Systems”: ( )
Hydronic heat pumps with a common heat pump water loop with central heat rejection (e.g. cooling tower) and heat addition (e.g. boiler) shall have controls providing deadband ≥15°F between initiation of heat rejection and addition.

51. Saving Energy With Your BAS Testing, Calibration, Cx

52. Saving Energy With Your BAS Testing, Calibration, Cx
Issues:
“Commissioning can be broken down into five phases – predesign, design, construction, acceptance, warranty/ continuous commissioning (or recommissioning).” – ASHRAE GreenGuide
“Case studies on commissioning show that construction and operating costs can be reduced from 1 to 70 times the initial cost of commissioning.” - ibid.
“Even a few days of occupancy with poorly calibrated controls can lead to permanent overriding of the system and the loss of all savings.” – AEDG Small Office Buildings
Strategy: Save energy by:
Testing, Calibration and Commissioning

53. Saving Energy With Your BAS Testing, Calibration, Cx
189.1P, “Systems”: ( )
The following systems shall have Acceptance Testing:
HVAC, IAQ and refrigeration and associated controls
Lighting: daylighting controls, occupancy, auto-shutoff
Energy measurement devices
Water measurement devices
189.1P, “Systems”: ( )
The following systems shall be commissioned:
HVAC, IAQ and refrigeration and associated controls
All lighting and shading controls
Service water heating systems
Energy measurement devices
Water measurement devices

54. Saving Energy With Your BAS Testing, Calibration, Cx
“Fundamental Commissioning…Energy Systems”:
Designate Commissioning Authority (CxA)
Develop, execute and document commissioning of:
HVAC system and associated controls
Lighting controls, including daylighting
Etc.
LEED-CI: Required
LEED-CS: “
LEED-NC: “
LEED-Schools: “

55. Saving Energy With Your BAS Testing, Calibration, Cx
“Enhanced Commissioning”:
Additional activities for the CxA after system performance verification is completed, in part to keep system running efficiently.
LEED-CI: Credit: (5 pts)
LEED-CS: Credit: (2 pts)
LEED-NC: “
LEED-Schools: “

56. Saving Energy With Your BAS Testing, Calibration, Cx
AEDG Small Office & Small Retail Buildings,
“Calibration and Commissioning” (daylighting)
Even a few days of occupancy with poorly calibrated controls can lead to permanent overriding of the system and the loss of all savings.
- Most photosensors require daytime and nighttime calibration sessions.
- The photosensor manufacturer and the QA provider should be involved in the calibration.
- Document the calibration and Cx settings and calendar intervals for future calibration.

57. Saving Energy With Your BAS Testing, Calibration, Cx
AEDG Small Office Buildings,
“Filters”
Replacement of dirty filters should correspond to filter manufacturer’s recommendations. Use a filter differential gauge to monitor filter pressure drop; senmd an alarm when filter pressure exceeds predetermined pressure drop.
AEDG Small Office & Small Retail Buildings,
“CO2 Sensors”
“Inaccurate CO2 sensors can cause excessive energy consumption and poor air quality…” CO2 sensors should be … factory calibrated and calibrated periodically as recommended by the manufacturer.

58. Saving Energy With Your BAS Testing, Calibration, Cx
AEDG Small Office Buildings,
“Expanded Recommendations for Daylighting Controls”
“All lighting controls musty be calibrated and commissioned after the furniture is in place.”
AEDG Small Retail Buildings,
“Economizers”
“Periodic maintenance is important with economizers, as dysfunctional economizers can cause substantial energy consumption due to malfunctioning dampers and/or sensors.”

59. Saving Energy With Your BAS MM&V
Metering, Measurement, and Verification
(MM&V)

60. Saving Energy With Your BAS MM&V
189.1P, “Meters” (water): ( )
Domestic water, both potable and reclaimed, entering the building shall be monitored or submetered.
189.1P, “Meter Data Collection” (water): ( )
All building meters, monitoring systems and submeters shall communicate water consumption data to a meter data management system. Meters shall record hourly and provide data daily, at a minimum.
189.1P, “Data Storage and retrieval” (water): ( )
Data management system shall be able to produce reports of hourly, daily, monthly and annual water consumption from each meter, and provide alarm capabilities.

61. Saving Energy With Your BAS MM&V
189.1P, “Consumption Management” (energy): ( )
Meters shall collect energy consumption data for each building energy source and convey them to a data acquisition system.
189.1P, “Energy Consumption Data Collection”: ( )
All building meters shall communicate energy consumption data to a data acquisition system. Meters shall record hourly and provide data daily, at a minimum.
189.1P, “Data Storage and retrieval”: ( )
Data acquisition system shall be able to produce reports of hourly, daily, monthly and annual energy consumption from each meter.

62. Saving Energy With Your BAS MM&V
“Measurement and Verification”:
Submeter tenant energy usage, or, install continuous metering for end uses. (LEED-NC & -Schools: Consider diagnostics for alarms on leaky valves, faulty controls, etc.)
LEED-CI: Credit: (2-5 pts)
LEED-CS: Credit: (end use meter, 3 pts)
LEED-CS: Credit: (tenant meter, 3 pts)
LEED-NC: Credit: (end use meter, 3 pts)
LEED-Schools: Credit: (end use meter, 3 pts)

63. Saving Energy With Your BAS MM&V
“Minimum/Optimize Energy Efficiency Performance”:
Meter all energy use. Points for additional meters.
LEED-EB: Required:
LEED-EB: Credit: (additional, 1-18 pts)
“Performance Measurement: System-Level Metering”:
Have system level metering for 40+% (1 pt) or 80+% (2 pts) of building energy consumption.
LEED-EB: Credit: (1 pt)

64. Saving Energy With Your BAS MM&V
“Outdoor Air Delivery Monitoring”:
Monitor ventilation system performance with alarms on specified variance from design.
LEED-CI: Credit: (10%,1 pt)
LEED-CS: Credit: (10%, 1 pt)
LEED-EB: Credit: (15%, 1 pt)
LEED-NC: Credit: (15%, 1 pt)
LEED-Schools: Credit: (10%, 1 pt)

65. Saving Energy With Your BAS MM&V
“Water Performance Measurement”:
Meter and record potable water use. Points for additional meters.
LEED-EB: Credit: (1 pt)
LEED-EB: Credit: (additional, 1 pt)
“Thermal Comfort Monitoring”:
Meter and record temperature and humidity every 15 minutes or less. Alarm on situations requiring adjustment or repair.
LEED-EB: Credit: (1 pt)

66. Saving Energy With Your BAS MM&V
AEDG Small Retail Buildings,
“Economizers”
“Periodic maintenance is important with economizers, as dysfunctional economizers can cause substantial energy consumption due to malfunctioning dampers and/or sensors.”

67. Saving Energy With Your BAS Integrating Systems

68. Saving Energy With Your BAS Integrating Systems
90.1, “Automatic Lighting Shutoff” ( )
Shut off building lighting on a signal from another alarm or control system that indicates the area is unoccupied.
189.1P, “Automatic Control of HVAC and Lights in Hotel/Motel Guest Rooms” ( )
Guest room lights, switched outlets and HVAC setback controlled by:
Room occupant control (key, card, etc), or
Occupancy sensors.
AEDG Small Office Buildings,
“(EL24 – no title)”
“Turn off exterior lighting not designated for security purposes when the building is unoccupied.”

69. Saving Energy With Your BAS A Case Study

70. Saving Energy With Your BAS Looking to the Future

71. The Changing Environment of Building Automation
Thank you!
Bill Swan
Alerton
“Ask not what you can do for your building automation system,
Ask what your building automation system can do for you.”