Managing your building environment
We offer intuitive and innovative systems to meet the challenges that face today’s building industry. Our industry experts have set new standards for design, installation and service of building Building Automation Systems and Indoor Air Quality Products. Our unique infrastructure and affiliations coupled with our broad array of talent and experience enables us to provide well coordinated services of all major building systems.
With the current trends and significance being placed on energy conservation, sustainability and facility efficiency we continue to focus on innovation and development of our products, organization and services to ensure we are always prepared to meet our customer’s needs.
EMS (Bermuda) Ltd. can help any facility find complete solutions that fit with all your needs.
Our systems are flexible and can be installed in a variety of environments – from small, medium and large commercial facilities to central processing plants and residential properties.
Our design capabilities, installations and services include state of the art open technology systems to control and monitor : Building Management systems, Energy Metering, Fire & Security, High Accuracy Control and Indoor Air Quality. Working with a broad spectrum of owners, architects, mechanical contractors, consulting engineers and construction managers, we utilize the latest in facility automation hardware and software for new construction projects and existing building retrofits.
We are ready to be your partner, so let us help you:
- Successfully balance energy savings with occupant comfort
- Lower your energy and operating costs
- Increase your properties sustainability
- Improve indoor air quality – creating safer, healthier and more comfortable working and living spaces
BUILDING AUTOMATION SYSTEMS
Building Automation Systems that make sense
Designed to automatically measure and record utilities and energy usage, our WebCTRL building automation systems are simple to use and provide access to a wide range of real-time and historical data. With this information users can gain an accurate understanding of their usage patterns, produce graphical trend reports, and automatically acquire temperature and energy consumption data.
Having reliable statistics readily at hand, a user can identify equipment problems, target areas that will deliver the greatest reduction in electrical usage and track utility providers’ billing figures.
Our BAS systems can also be integrated into your facilities by utilizing:
- Web-based interactive building automation.
- The only true “open protocol” system in Bermuda providing access to your building from anywhere around the world.
- BACnet®, LonWorks®, MODBUS, SNMP.
- Full alarm management capabilities.
- Supports wide variety of equipment including fire safety, lighting, security, access control and HVAC control.
Our experts have what it takes to Design, Engineer, Integrate, Install and Service simple to the most complex Direct Digital Control Systems all in house. Our mission is to provide state-of-the-art control solutions with a professional and straightforward approach. We welcome “open protocol” as an important ingredient toward the solution of reducing the confusion in control system pricing and technology.
Our technical staff is dedicated to installation and service with separate service personnel on call 24 hours per day. Field personnel are factory trained on most major manufacturer’s equipment.
INDOOR AIR QUALITY
Indoor Air Quality (IAQ) plays a significant role in creating a healthy living environment. For example, mould, mildew, bacteria and fungus are frequent contributors to “sick building syndrome”. Moisture and high humidity can easily turn ducts, walls and ceilings into a biological breeding ground that can harm both people and profits.
Common IAQ problems include inadequate ventilation, improper temperature and humidity, excessive carbon monoxide and high particulate levels. If these problems are left unresolved, occupants can experience drowsiness, irritation, dizziness, and other more serious health problems.
EMS incorporates best practice in ensuring good IAQ, offering services and products in the following areas:
- Indoor Air Quality Testing and Monitoring
- HVAC Hygiene Assessment
- Mould Remediation
- Air Duct Cleaning and Disinfecting
- De-humidification products
- IAQ Consulting services
Recent advancements in IAQ surveys now allow consultants and contractors to economically monitor the IAQ of buildings. Having an IAQ monitoring program in place allows for fast, reliable investigation of complaints and concerns.
The air conditioning (A/C) coils in our buildings provide cool, moist gardens for the propagation of mold and other microorganisms. These organisms multiply “24/7” to huge concentrations, creating hidden biofilm of mold deep inside the HVAC system. These microbial contaminants travel from the coil through the airstreams, accounting for much of the illness and discomfort in buildings today and causing many of the maintenance and operational problems.
There is an effective solution to this problem: multi-patented UVC Emitters from Steril-Aire, the company that developed “UVC for HVAC”. These devices use germicidal ultravoilet-C (“UVC”) energy to eradicate both surface and airborne mold, as well as viruses and bacteria. The “C” wavelength of the UV spectrum targets DNA of microorganisms, causing cell death or making replication impossible.
Benefits of using UVC
- Kills or inactivates surface and airborne microorganisms that trigger allergy-asthma symptoms including mold and mold spores, solvents and other VOC’s. Also eliminates associated odors.
- Prevents the spread of infectious diseases caused by bacteria (including TB, Legion Ella, E.coli, and whooping cough) and viruses (including colds, flu, measles, German measles, chicken pox, small pox and SARS).
- Continuously cleans coils, drain pans, plenums and ducts, reducing or eliminating costly cleaning programs and the use of harmful chemicals and disinfectants.
- Lowers HVAC energy costs by improving heat transfer and increasing net cooling capacity.
- Improves general IAQ for better productivity and less absenteeism.
- Rapidly pays for itself in maintenance and energy savings.
EMS Bermuda has selected Steril-Aire as the product of choice in UVC technology.
Steril-Aire devices work better and last longer; the service life and germicidal effectiveness of UVC devices relate directly to how much output or intensity they deliver. There are many UVC products on the market today that claim to work just like Steril-Aire. But in truth, their performance claims are derived from tests conducted at 90 deg. F still air rather than 45 deg. F moving air.
Independent testing proves (see Homeland security and EPA evaluation below) that UVC Emitter output is significantly higher that the competition at all temperatures, especially under real-life HVAC operating conditions. Only Steril-Aire delivers:
- 3-4 times longer life: UVC lights lose up to half their output over a year. Competitive UVC devices must be changed every 3-4 months because they quickly lose the output needed to maintain microbial control. The UVC Emitter, by contrast, has a 12 + month service life and after a full year, it has 2-3 times greater output than competitive devices deliver on Day 1. As a result only Steril-Aire can ensure the germicidal performance you need, with no return of microbial growth, for 3-4 times longer than the competition.
- A patented state of the art solid state electronic power supply for enhanced reliability and performance.
- High performance construction, including stainless steel housings with high spectral aluminum reflectors, and thick quartz tubes.
- Lowest life-cycle cost of any UVC product.
EMS Bermuda has wide varirty of energy monitoring and reporting solutions, Individual standalone moniroting devices and software to networked solutions for building and campus wide monitoring.
We make data big.™
While there’s a lot of buzz around big data in today’s buildings, data is only powerfulwhen it can be organized, understood and used to make smart decisions. That’s whereAutomated Logic comes in. We’re knownthroughout the industry for providing the native, integral set of analytical tools thatdeliver the understanding, prompt action and historical record you need. And in providing the resources that can simplify the analysis of building data, we make it big.
HOTELS & GUESTHOUSES
Hotels & Guesthouses (InnCom)
Travelers become guests for life when a hotel offers them an experience tailored to their needs. This is why guest comfort tops the list of reasons why White Lodging chose leading-edge energy management systems (EMS) from INNCOM® . The INNCOM thermostats help meet this goal while also helping property owners realize excellent energy savings,” says Thomas D. Riegelman, CFM, White Lodging vice president of engineering & facilities management.
Greener footprint, cash flow benefits ‘start on day one’
INNCOM delivers significant energy efficiencies and a greener footprint. Owners start getting energy savings the minute we install the system. Properties can reap savings from several levels of INNCOM’s line of energy management solutions. These range from installations of standalone digital smart thermostats to fully networked, property-wide smart solutions that interface with Property Management and other third-party systems.
INNCOM maximizes energy savings
INNCOM’s state-of-the-art wireless Deep Mesh RF network technology provides high-speed communication to automatically monitor and control the thermostat in each guest room. Owners and operators can absolutely track in real time what goes on with the heating and cooling in every room.
INNCOM monitors guest comfort and safety from check-in to departure
Guest comfort is more important than energy savings to most hotel and guest house operators. Each guest experiences seamless environmental comfort from check-in to departure. INNCOM’s INNcontrol 3 near-real-time reporting server links energy management components with the property management system (PMS) and door monitoring to ensure guests are always comfortable.
This is how it works:
When a guest checks in, the PMS signals the INNCOM EMS to automatically activate temperature controls to heat or cool the room to a comfortable set point. It is our experience that when guests see an appropriate set point and are comfortable, they rarely touch the thermostat. If would like to change the temperature, INNCOM has clear, easy-to-use controls that are an essential part of guest comfort. The system smoothly operates heat pumps, cooling coils, and fans. Ease of use for guests is the first feature to look for in selecting a thermostat.”
Occupancy sensors integrated in the thermostat and door monitoring devices detect when a guest is physically in the room. If the room is temporarily unoccupied, the thermostat automatically drops back to an energy-saving temperature setting. Sensors trigger the thermostat to return to a property configurable set point when the guest reenters the room. This process takes place without any active management by property operating staff. Door lock sensors can signal an alert when a guest room door is left ajar. Properties can also opt for door sensors that signal the thermostat to automatically shut off when guests open patio or deck doors, then resume heating or cooling when doors are closed.
The INNCOM EMS activates system notifications for heating or cooling alerts if room temperature moves outside the norm for a predetermined period. If a room experiences a temperature control issue, property engineering staff know about it and can proactively address the problem before the guest calls for assistance.
At checkout, the thermostat automatically goes into setback mode at the most efficient temperature. If housekeeping or other staff go into a room and change the temperature, it does not affect the setback.
Variable Frequency Drive (VFD)
One of the most successful energy management tools ever applied to building HVAC systems is the variable frequency drive (VFD). For more than 20 years, VFDs have successfully been installed on fan and pump motors in a range of variable load applications. Energy savings vary from 35 to 50 percent over conventional constant speed applications, resulting in a return on investment of six months to two years.
Most common uses for VFDs
Most conventional building HVAC applications are designed to operate fans and pumps at a constant speed. Building loads, however, are anything but constant. In a conventional system, some form of mechanical throttling can be used to reduce water or air flow in the system. The drive motor, however, continues to operate at full speed, using nearly the same amount of energy regardless of the heating or cooling load on the system. While mechanical throttling can provide a good level of control, it is not very efficient. VFDs offer an effective and efficient alternative.
Three factors work together to improve operating efficiency with VFDs:
- Operating at less than full load. Building systems are sized for peak load conditions. In typical applications, peak load conditions occur between 1 and 5 percent of the annual operating hours. This means that pump and fan motors are using more energy than necessary 95 to 99 percent of their operating hours.
- Oversized system designs. Designing for peak load oversizes the system for most operating hours. This condition is further compounded by the practice of oversizing the system design to allow for underestimated and unexpected loads as well as future loads that might result from changes in how the building space is used.
- Motor energy use is a function of speed. The most commonly used motor in building HVAC systems is the induction motor. With induction motors, the power drawn by the motor varies with the cube of the motor’s speed. This means that if the motor can be slowed by 25 percent of its normal operating speed, its energy use is reduced by nearly 60 percent. At a 50 percent reduction in speed, energy use is reduced by nearly 90 percent. The installation of a VFD in an HVAC application addresses the inefficiencies introduced by the first two factors, while producing the energy savings made possible by the third. The VFD accomplishes this by converting 60 cycle line current to direct current, then to an output that varies in voltage and frequency based on the load placed on the system. As the system load decreases, the VFD’s controller reduces the motor’s operating speed so that the flow rate through the system meets but does not exceed the load requirements.
The most significant benefit to using a VFD is energy savings. By matching system capacity to the actual load throughout the entire year, major savings in system motor energy use are achieved.
Another benefit of the units is reduced wear and tear on the motors. When an induction motor is started, it draws a much higher current than during normal operation. This inrush current can be three to ten times the full-load operating current for the motor, generating both heat and stress in the motor’s windings and other components. In motors that start and stop frequently, this contributes to early motor failures.
In contrast, when a motor connected to a VFD is started, the VFD applies a very low frequency and low voltage to the motor. Both are gradually ramped up at a controlled rate to normal operating conditions, extending motor life.
VFDs also provide more precise levels of control of applications. For example, high-rise buildings use a booster pump system on the domestic water supply to maintain adequate water pressure at all levels within the building. Conventional pump controls in this type of application can maintain the pressure within a certain range, but a VFD-based system can maintain more precise control over a wider range of flow rates, while reducing energy requirements and pump wear.
Our most recent commercial projects have included:
- Seon Place
- HSBC – Harbourview
- Hamilton Princess
- Southampton Princess
- Thistle House
- A.S. Coopers
- 131 Front Street
- City Holdings
Manager & Energy Management Specialist
With nearly 20 years devoted to building automation, integration and controls, Dennis is sometimes referred to as the “guru” of Energy Management Systems. Dennis focuses on leading a dedicated team to design, install, commission and service Energy Management and Control systems.
Partners, Associations & Awards
Building Automation Systems
Indoor Air Quality
Hotels & Guesthouses
HSBC Harbourview – LEED Gold Award
BAC GROUP OF COMPANIES
9 Mill Creek Road
Office +1 (441) 292.0881
Fax: +1 (441) 292.6887
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