Integrate Lighting, Daylighting and HVAC Control in the Laboratory Room Duane Ranski Siemens Industry Inc.

Integration happens for functional reasons Operating efficiency Construction efficiency Superior experience for occupants Improves operating efficiency… example? Improves construction “efficiency”… single network, fewer wires, fewer connections with fewer points of failure. And most of all, it can make a superior experience for the occupants.

Operational reason: Unified occupancy functions Much of the energy consumed by building systems is to serve the occupants But sometimes they aren’t there; the need is gone and the service continues Cutting that waste is a major purpose of building automation “Comprehensive setback” applies to ventilation, temperature, lights and shading Energy savings pays for the development of BAS Energy is used to keep the occupants comfortable and safe. Cutting the waste is the major purpose of building automation “Comprehensive set back” means cutting back on all items impacting energy use based on user occupancy and utilization.

Ventilation setback in labs Big savings but affects Safety Application of occupancy sensors to ventilation is sometimes special for labs In conference rooms and offices, occupancy indicated by schedule AND sensor In labs it’s operating safely according to an occupancy schedule OR sensor This approach helps get the safety officer behind the program Labs handle “occupancy” differently from conference rooms. Labs need to know actual occupancy, not just the schedule. Get the Safety Officer involved.

Poll the audience What means have you used to share data between lighting and hvac controls? Common occupancy sensor with multiple sets of contacts BAS gateway reading and writing objects on common network Unified room controller handling complete lighting and hvac function

How is the need met? Connect a common occupancy sensor wired to 2 systems Common sensor: effective, but only for sensing BAS network: connects sensors, can also unify schedules and operator access TRA: directly address interactions! Unify access for occupant!

How is the need met? Install separate BAS devices networked together Common sensor: effective, but only for sensing BAS network: connects sensors, can also unify schedules and operator access TRA: directly address interactions! Unify access for occupant! People have put up with the extra coordination and separate systems with separate tools and separate service organizations and support paths.

How is the need met? Install unified Room Automation Common sensor: effective, but only for sensing BAS network: connects sensors, can also unify schedules and operator access TRA: directly address interactions! Unify access for occupant! MORE EFFICIENT TO USE A SINGLE SYSTEM. Do HVAC and Lighting from a common unified controller.

Special considerations Requirements for speed in lab air flow control call for special control equipment Combination of TRA disciplines adds different processing demands For lighting control, occupants expect instantaneous response for the lights to come on when the switch is thrown. Likewise, lab ventilation is expected to be fast. System must take into the account the different rules for different situation. Tracking fume hoods… fast. Changing flows based on change in occupancy can be slower.

Construction reasons 35% Less installed cost One automation system instead of 2 or 3 means Less material Less labor Easier construction coordination Project experience indicates construction savings up to 35% 35% Less installed cost Lower construction cost from eliminating redundant control systems. Where can you spend that extra money? One building project used the savings to add shading to the west side of the building in addition to the already budgetted south side shading.

Unified interface panel to engage occupants A building isn’t Green, if it doesn’t work If it doesn’t work, for occupants, then it doesn’t work LEED supports a trend toward increasing control by occupants It’s not a “thermostat”. It’s a “ROOM UNIT” because it does everything for the occupants of the room If a building “doesn’t work”, ALL of the energy is wasted. Defined as working for the occupants. Occupants need to be able to interact, see what’s happening and feel that they have control over what happens to them.

Involve occupants in efficiency Occupants affect energy use Want to conserve, but don’t know how Inform them! Empower them! Help them participate in sustainability! But occupants can impact the energy budget in a big way. In the past, this was only seen as a negative impact… Occupants leave lights on when no one is in the space. Occupants move the thermostat too high or too low and walk away. But it can be a positive impact, IF THEY KNOW WHAT”S HAPPENING. That’s why we developed the GreenLeaf to signal the sustainabilitiy status. Let’s occupants PARTICIPATE in energy efficiency decisions.

Engage occupants at the hood and in the room

Engage occupants: Green Leaf rules for the Room The light rules Setpoint adjustment lighting Lights switched on when there is sufficient daylight The blind rules Occupants should be allowed to change the settings for their comfort and conditions, but the GREEN LEAF will tell them when they do something that is affecting energy efficiency and sustainability. Touching the Green Leaf in this case will return all values to the default, sustainable set points. Winter: Blinds lowered, sunny day and heating Summer: Blinds raised and cooling

Engage occupants: Green Leaf rules for the Fume Hood SLS 1723 Selling Lab Solutions 3/21/2018 Engage occupants: Green Leaf rules for the Fume Hood Fume hoods are major energy consumer. Fume Hood Users can also be engaged to help reduce energy use with the Green Leaf feature. In this video we see a fume hood user open the hood vertical sash beyond the sash stop, something which should only be done for set up or changing a large apparatus. As he opens the sash, we see the ODP come into frame, the backlight turns on… It was designed this way to get the user’s attention, even in his peripheral vision. The display says the velocity is dropping, but not yet in alarm state (the red light and horn don’t go off), but the Green Leaf goes dark. The user touches the Green Leaf and the display tells him what he should do… CLOSE THE SASH. Video of Operator Display Panel with Graphical Messages and Greenleaf Feature Instructor Guide

Review Scope of BAS is expanding Unified room automation works better for users Unified room automation improves efficiency Questions from the webinar: Do we have any experience with shading systems? Maintenance.

Questions? Duane Ranski Siemens Industry Inc. duane.ranski@siemens.com