Institutional
Building Pressurization
Maintain Net Pressure to Control Moisture Although pressurization is not the sole source of moisture problems in a building, it is a major and often overlooked cause of mold growth in the building envelope. Pressure is a significant water transport path across the building envelope. Wind pressure cannot be compensated for all of the time without damage to the building envelope (if you develop enough pressure on one exterior wall to compensate for wind pressure you will inevitably over-pressurize another wall). The objective in exterior wall pressurization is to develop a net pressure (positive during cooling, neutral during heating). A net positive pressurization will result in a drying effect during humid summer months. | ||
Define Pressure Zones! Regardless of whether or not you are concerned about pressure from a moisture (IAQ) perspective or for containment of contaminants (labs, processes) you must define pressure zones within the building. Many buildings have pressurization problems because the designers treated the whole building as a single pressure zone. Buildings with multiple air handling systems have complex dynamics that effect pressurization. A common method to control building pressure is to control fan systems to space static pressure. Unfortunately, static pressure control can not ensure that net pressurization is achieved. All it can do is assure that one or more pressure points within the building is positive or negative to a reference point outside of the building. The reference point is influenced by both wind and stack pressures. A more significant problem is the interaction of multiple pressure zones when static pressure control is used. This problem becomes apparent when multiple handlers are controlled on space static pressure. These systems often result in very poor and sometimes catastrophic building pressurization. | ||
The Solution Define pressure zones and control the supply and return airflow rates into and out of each zone (D cfm). Monitor “bleed” airflow rates between critical spaces and reset the differential as required. In addition, monitor local exhaust flow rates if changes in flow rates during operation will significantly impact pressurization. Typical Pressure Zones Single air handler serving a single floor: control supply and return airflow rates at the air handler. Single air handler serving multiple floors: control supply and return airflow rates at each floor to compensate for stack effect. Single air handler serving multiple pressure zones on one or more floors: control supply and return airflow rates at each pressure zone. | ||
| Applications | ||
Maintain Outside Airflow when there is no relief on a single pressure zone system. | ||
Clean Benches/Work Stations
Horizontal Flow Clean Benches
Envirco provides a freestanding unit features a unique separate plenum and table design. Positive-pressure laminar airflow provides product protection within the work area.
Features
- ISO Class 5 (Class 100) clean air work zone.
- Two piece design allows unit to move through laboratory doors with ease.
- Provides a lighted surface for easy location within a laboratory.
Table Top Horizontal Laminar Flow Work Stations
Envirco builds the TT model Table Top which can be bench or table-mountable and provides an ISO Class 5 product-protection environment using an aerosol-challenged HEPA filter.
Features
- ISO Class 5 (Class 100) clean air work zone.
- Positive-pressure horizontal airflow.
- Sizes: 3' to 6'.
Unimodule M-2 Laminar Flow work Station
Envirco's self-contained, product-protection unit provides HEPA-filtered air to critical work areas in a positive-pressure laminar flow pattern.
Features
- ISO Class 5 (Class 100) clean air work zone.
- Vertical freestanding positive-pressure workstation.
- Modular design with an isolated work table.
- Range of sizes: 3' to 8'.
Unimodule "METD" 100% Exhausted Vertical Flow Workstation
Designed for operations involving toxic or noxious fumes that can be potentially harmful to workers; a rear plenum and workstation exhaust slots remove exhaust fumes from within the cabinet. The open front features vertical airflow for personnel protection; the HEPA filter ensures product protection.
Features
- ISO Class 5 (Class 100) clean air work zone.
- 100% exhausted air used for application with toxic or noxious fumes.
- Provides personnel and product protection.
- Sizes: 4', 6' and 8'.
VLF 797/HLF &(& Laminar Flow
A self-contained, compact, horizontal or vertical unidirectional flow module. The Envirco VLF 797/HLF 797 is an economical, multi-purpose, unidirectional flow module that is completely self-contained. It provides an ISO Class 5 (Class 100) environment within the work area that complies with the latest IEST Recommended Practices.
Horizontal or vertical airflow is available. Using an existing work surface, the unique design of the VLF 797/HLF 797 enables quick and easy assembly to either a horizontal or vertical unidirectional airflow configuration. The positive pressure laminar airflow provides product protection only. Air from within the cabinet is returned to the room through the front access opening.
Features
- An ISO Class 5* environment utilizing an aerosol challenged high efficiency particulate air (HEPA) filter.
- Easy conversion to either horizontal or vertical configurations.
- Single electrical outlet, 115V, 15 Amp, flush mounted on the front blower housing.
- An extruded aluminum cabinet and stand.
- A formed aluminum front panel with corrosion resistant polyurethane enamel finish.
- Powder-coated steel diffuser screen protects the HEPA filter and maintains uniform airflow velocity within the work area.
- Quiet operation (55 dBA ± 3 measured 30 in. (762 mm)).
Demand Control Ventilation
Providing a uniquie solution for reliable, cost effective solution for cost effective occupancy counting. Ideal for demand control ventilation applications. Designed for interior single entry door/openings. Multiple counters can be installed in spaces with more than one point of entry.
This solution uses thermal imaging technology to provide for bi‐directional counting of people entering and leaving a space. Application of this device provides for 5% or better counting accuracy. Door jam or stand-off mounting options. Fully BACnet compatible. Will never drift or require calibration.
Fan Filter Units & Ceiling Grid System
MAC 10® Series of Fan Filter Units
While used for a variety of critical clean air applications, the MAC 10® line of Fan Filter Units (FFUs) are ideal cleanroom solutions for the worldwide industrial market. FFU's can be configured in 2x2, 2x3, 2x4 and 4x4 to accooomadate the cleanroom design. The FFU design — a fan, motor, and filtration system all in a single unit — draws air into the unit via the filtration system and exhausts it across the filter face, supplying particle-free, laminar airflow to the room. Renowned for their ease of installation and operation, the MAC 10® line of FFUs offer low energy consumption, low sound levels, and a low profile.
Note: The LE models offer low watts, low profile, and low operating costs.
Additionally, Envirco can offer control systems for one unit up to hundred of units.
MAC-T Ceiling Grid System for Cleanrooms
Envirco’s cleanroom ceiling solution, a 2" Gasket Seal Grid Cleanroom Ceiling System, is fabricated using superior materials to provide both a structural grid system and zinc alloy die-castings. The building block of a cleanroom ceiling grid system is the connection and suspension system. Envirco offers a true, extruded aluminum 2" cleanroom ceiling system. It is the most cost efficient system for cleanroom classes for ISO 8 (Class 100,000) to ISO 5 (Class 100), or for any full HEPA coverage application.
Fan Inlet Monitoring - Fan Arrays
Ebtron's new GTx108-F is the best solution for accurate and repeatable airflow measurement in fan inlets. SWSI, DEDI and fan array systems are supported. Airflow [FPM or CFM] temperature and/or airflow monitoring are available on all models of this device. Individual fan airflow rates and fan alarming are available with the combination analog output/network models.
Typical Applications
Fan airflow tracking/fan
Makeup/exhaust airflow measurement and control
Air change verification and control
Fan array airflow monitoring and fault detection
Fan Systems for Exhaust Applications
Airtelligence, Inc. represents two manufacturers of fan systems for exhaust applications: Continental Fan Manufacturing and Soler & Palau. Both of these manufacturers provide our customers a wide range of fan selections, and in many cases very fast delivery. From fan parts and accessories to dampers and fan equipment, we can supply your needs.
Flow, BTU and Power Metering
Reliable, Simple-to-Use Flow & Energy Measurement Systems
Through continuous innovation, Spire Metering Technologies transforms complex cutting-edge technologies into affordable, reliable and simple-to-use tools for accurate flow and energy measurement. Our ultrasonic flow meters, ultrasonic water meters, BTU meters, electromagnetic flowmeters, KWH meters, automatic meter reading (AMR) and advanced metering infrastructure (AMI) systems - easily customized across a broad range of applications - help you boost system performance, conserve resources, improve efficiency and reduce costs.
Gas & Refrigeration Monitoring
Products from MSA a leader in gas and refrigerant detection
Chillgard® RT Refrigerant Monitor
Capable of detecting refrigerant gas down to 1ppm, the Chillgard RT Refrigerant Monitor is purpose-built to monitor up to eight remote areas—and is completely configurable to detect either a specific refrigerant or group of refrigerant gases.
Z-Gard® C 485 Controller
For wide-ranging gas-monitoring needs, the economical Z-Gard C 485 Controllers are up to the task. The controllers connect with a wide array of MSA Z-Gard S Sensors, with controller models accepting up to 24 sensors. Relay outputs indicate warning, alarm or sensor fail for each zone, and units are available with one or two zones. A large LED readout displays the active channel and the corresponding sensor gas level.
Z-Gard® S Sensor
The Z-Gard S Sensor is designed to detect the presence of carbon monoxide, nitrogen dioxide and combustible gases in air. These sensors employ solid state, electrochemical or catalytic sensors which generate a representative output signal proportional to the calibrated operating range. All Z-Gard S Sensors are available with 2 output versions, a 4-20mA analog output, or an addressable RS-485 digital signal. Z Gard Sensors with RS-485 digital output are specifically designed to operate as a system with any Z-Gard CXII or C 485 Controller.
High Volume Low Speed [HVLS] Fans
![High Volume Low Speed [HVLS] Fans](/application/files/cache/74226bfabc2f2a8c57d3d37baa08c7ca.jpg "High Volume Low Speed [HVLS] Fans")
![High Volume Low Speed [HVLS] Fans](/application/files/cache/c39066e1fbb02f3a8af61f87bb8561ce.jpg "High Volume Low Speed [HVLS] Fans")
The most advanced HVLS fan on market. This fan uses variable pitch blade technology and low-profile design, AirMotion Sciences' Big Smart Fan s fit any application where space is tight, and there is a need to move and mix massive amounts of air equivalent to larger HVLS fans. They require 1 to 2 ft less mounting space thus avoiding obstructions like facility structure, lights, and sprinklers.
- Variable Pitch blades technology
- Rototair composite blades
- Multimode smart controls
KEY SPECIFICATIONS
- FAN SPEED - 20 TO 100 RPM (FOR 15 FT FAN
- BLADE PITCH - VARIABLE (VPT™) +/- 0° TO 20°
- NO OF FAN BLADES - 6
- FAN BLADE MATERIAL - COMPOSITE
- CFM - UP TO 340,000
- APPROXIMATE WEIGHT - 230 LBS INCLUDING CONTROL UNIT AND MOUNTING HARDWARE
- FAN MOTOR - 1.5 HP TEFC HIGH EFFICIENCY | 208/240 OR 480V THREE PHASE, 60HZ
- POWER SOURCES - DESIGNED TO WORK WITH ALL POWER SOURCES FROM 120V SINGLE PHASE TO 480V THREE PHASE
- EFFECTIVE COVERAGE AREA - UP TO 20,000 SQ FT
Particle Control
Particle Control Technologies. Based upon Technologies Developed and employed by semiconductor cleanrooms, SecureAire has advanced and further developed a number of highly sophisticated air
purification technologies that make “air flow the dominant transport mechanism for airborne particles.” In addition to its lineup of air filtration and purification technologies, SecureAire has also developed an analytical tool, the AQM-100, which provides anyone with the ability to measure and quantitatively understand how their current filtration
and purification systems are performing.
Pressure Independant Fluid Flow Valves
DANFOSS AB-QM PICV
The Danfoss AB-QM is a Pressure Independent Control Valve (PICV) together with an actuator functions as a control valve and it has an integrated balancing function. The AB-QM is a high quality product that is manufactured with a high precision. That means it will give you accurate control independent of the circumstances in the HVAC system.
This valve requires no up or down stream pipe diameters to provide very accurate flow control over large pressure range. Sizing is easy as you only need know the pipe size and the GPM required. The valves come in 10 sizes from 0.2 to 1950 gpm.
Wireless HVAC Controls
Autani, LLC is an independent Clean Tech Company that develops and manufactures products to automate energy efficiency. Our customers typically experience a reduction in the energy consumption of managed equipment from 30 to 50%.
Wireless Temperature Sensor
Wireless Temperature Sensors feature an integrated wireless transceiver—eliminating the need for control wiring. Available in multiple configurations including bullet, strap, outdoor, and refrigerator, the sensor monitors and reports temperatures to the Autani EnergyCenter software. With wide sensing ranges and multiple mounting options, this sensor can support an array of temperature monitoring applications.
EnergyCenter PRO Advanced Automation
EnergyCenter PRO adds powerful, easy-to-use advanced automation features to EnergyCenter managed control systems. Using intuitive “drag-and-drop” visual programming, EnergyCenter PRO makes it easy to automate connected thermostats, lighting, plug loads, and fans with user-defined conditions and logic.
StatCenter Software
StatCenter software coordinates thermostat management based on schedule, occupancy, and curtailment events. Featuring an easy to use web-based interface, StatCenter provides local or remote access for programming, monitoring, and controlling Autani wireless thermostats.
EnergyCenter PRO Advanced Automation
EnergyCenter PRO adds powerful, easy-to-use advanced automation features to EnergyCenter managed control systems. Using intuitive “drag-and-drop” visual programming, EnergyCenter PRO makes it easy to automate connected thermostats, lighting, plug loads, and fans with user-defined conditions and logic.
PLUS Software
PLUS software optimizes the efficiency of plug loads and PCs based on schedules, occupancy, demand response, and local input. With an easy to use web-based interface that provides local or remote access, PLUS is used to program, monitor, and control connected loads for a facility or campus.
SmartLet Outlet Controller
SmartLet integrates automatic receptacle control with EnergyCenter’s full complement of controls offerings, including dimming, switching and HVAC control. The Outlet Controller switches 120VAC receptacles ON or OFF based upon occupancy, schedules, and demand response events. SmartLet is attached to 15 or 20amp 120VAC duplex receptacles, which power the device. The Autani SmartLet Outlet Controller is wirelessly configured, scheduled, and controlled.
See the Airtelligence Energy Kiosk by clicking Airtelligence Energy Kiosk.