As technology advances, HVAC systems must adapt as well. A pressure independent controlof the primary VAV damper is accomplished by use af a differential pressure grid which gives accurate controlaf air flow even with a goo bend on. 4. We also conduct a series of tests to check the quality of these products. Built locally inhouse to our exacting standards and specific material tolerances, with or without electric or hot. We offer various discount levels. 7 – approx. Corrosion resistant steel inclined opposed blade damper with seals. 3. Reliable. 13-NOM3 (708) SAFETY SYMBOLS The following symbols are used in this document to alert the reader to areas of potential. Inlet sizes: 6”, 8”, 10”, 12” / Unit sizes: 2, 3, 4, 5. Points 5-Point VAV 7- Point VAV 12- Point VAV 6- Point VVT 11- Point VAV 12- Point VAV Universal hardware inputs 0 2 4 2 4 4 Built-in flow sensor Wireless inputs1 18 18 18 18 18 18 15 Vdc power supply Universal output 1 1 2 1 2 2 Digital (triac) outputs 2 2 4 2 4 4 Built-in actuator Compatibility for optional subnet devices:Fig. Electronic VAV Retrofit Kit. A minimum and maximum airflow are calibrated for each VAVThe 101s: Intro to VAVs. ©2022 Trane VAV-PRC012AC-EN Introduction This catalog includes parallel and series fan-powered VAV terminals, including standard and low height models. Cooling only in interior zones - reheat boxes optional. Requiring More Than 35 in-lb (4 Nm) Actuator Torque. From standard grilles and registers, to its architectural line of Formations® linear slot diffusers, along with a newly released series of displacement diffusers, METALAIRE has the air devices to meet every need. Spacing is determined by the largest air volume. Mig Fitt Engineering Works. 27. The T3SQ modulates the air volume delivered to a zone to accurately control cooling and heating conditions. If the damper for a 90° box closes CCW, rotate the coupler to the CCW mechanical limit. For Use With Pneumatic VAV Box. You can see it’s a pretty basic box. Single VAV Box capacity to handle CFM up to 7500 Cfm. These controllers provide many options and advanced system features that allow state-of-the-art commercial building control. Each meet a wide range of building applications. Watch this intro to the Zone Control Unit (ZCU) pre-wired, pre-piped VAV box from Siemens Building Technologies, Inc. Explain how VAV boxes should be ducted to minimize life cycle costs 4. Single Duct terminals are the fundamental building blocks for Variable Air Volume (VAV) systems. armasound CO2 & temperature sensor signal/power cabling from VAV to junction box for thermostate will be. An additional program, called R-Seller, allows an operator to have a live person remotely help verify age. Variable air volume boxes are a key component of our MicroTech® Integrated system for VAV system applications, providing consistent and reliable comfort for building occupants. 00% $366. Digital Single Duct Terminal. 45˚ rotation. info@kadairconditioning. of lighting, and the equipment in. Grille, register and diffuser applications include aesthetic, functional (are direction and control) or a combination of. 99 No Absolute value of offset in percent. AX Xenta b3-866. AHRI. . On the Unit screen, visually scan each input field and enter those fields that areby Titus. 1 Global Variable Air Volume (VAV) Box Sales, Revenue and Growth Rate of Commercial VAV Boxes (2017-2022)YORKduct static pressure have made pressure-dependent boxes virtually obsolete. Hope that helped. Series Fan VAV Box Dual Duct VAV Box1 3 Large Damper VAV Box2 Existing Damper Actuator Room Pressurization 1. WebSelect VAV Selection Quick Start User Guide for Engineers Page 4 Step 2 - Selecting the First VAV Box in a Project Note: The program selects and checks option configuration of the VAV boxes. Interested in this product? Get Latest Price from the seller. Volume Control damper is widely used in heating, ventilation and air-conditioning applications (HVAC Damper) in order to maintain or control the air volume inside the duct. 10 V Field of application: VAV units in comfort applications Application: VAV/CAV, position control. The Variable Air Volume VAV box will then determine how much air (CFM) to pass through to the space based on the demand of the space. VAV boxes provide a great solution for control of comfort with good. Box 50708, Dubai United Arab Emirates AIR TERMINAL UNITS (VAV) WE ZONE AIR Ver: May 2019. casing on larger sizes for added durability. Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant or varying temperature. Each terminal unit (Figure 8) receives primary air from the central air handling unit at the same temperature (about 55°F). - Used for VAV or constant volume application. Choose an existing Project List to add this product:. 00 EA $96. VariTrane VAV terminal nuit VAV System Schematiccontrol problems in VAV boxes. List Price PDF6/1212 6” Dia 12 x 12 98 $40. On the Unit screen, visually scan each input field and enter those fields that areHoneywell VAV box used for air distribution. 3%. Contact Supplier Request a quote . VAV boxes allow you to control the temperature of the room by controlling air volume, not air temperature alone. 4 of 9 Applications VAV systems have been commonly applied in various kinds of commercial office buildings for over 30 years. ft. The leak-resistant casing is fabricated with 22 gauge. These controllers also provide 2 freely configurable PID loops to make use of any free pins in the controller. poly armor liner, no fan, 1-row coil, no fan motor, ductSTRYKER VAV USER GUIDE 62-2030—01 2 1. 7 billion in 2019 and is projected to reach USD 6. The air-distribution equipment is thus given an important task. These can be a good intermediate option between standard VAV boxes and “air valves”. 12-20-2013, 03:02 PM #2. high quality galvanized steel sheet. VAV control core parameters are therefore protected against unauthorized changes after production. Labor Rates, Subcontractor Utilization List of Subcontractors Lot 1 (Product Only) Lot 2 (Product and Maintenance) Lot 3 (Product, Installation, Systems Integration, and. 8 VAV Box Balancing Tool and Network Sensors Technical BulletinVAV boxes Pressure Setpoint Speed Area of energy saved Fig. O Box – 3180 , Ajman Phone: +971 6 7436900 Email: info@airmaster. Steel heavy duty return grille, 1/2" blade spacing, 38 degree deflection, blades parallel to long dimension. All rules of thumb should be considered inaccurate and dangerous. Many of these, however, have neither provided satisfactory comfort nor met baseline energynear the electrical control box. Single Duct. The three-digit addressand VAV inlet static pressure. Adjustable fan speed control. Variable air volume ( VAV) is a type of heating, ventilating, and/or air-conditioning ( HVAC) system. The controller keeps track of the actual position of the damper (0% to 100% open) and calibrates itself every 24 hours. The open end-stop is automatically set for 90° boxes. • An integrated vav box with direct digital controls can provide for a bundled offering with lower total installed costs. 00 AIR MASTER EQUIPMENTS EMIRATES LLC P. casing on larger sizes for added durability. Bandra East, Palghar, Dist. The VAV box will look something like this. TEC Terminal Box (VAV) Controller The TEC Terminal Box Controller provides high performance Direct Digital Control (DDC) of pressure-independent, variable-air-volume zone-level routines. Help to control comfort, indoor air quality (IAQ), noise levels, and energy consumption with the VariTrane single duct terminal units. g. Variable air volume dampers. As an estimation engineer I am always thinking why a VAV box when we can get probably 4 diffusers for the price of 1 VAV box. Ulta-Loc with NEMA 1 Enclosure & Bottom Access Door. On the Unit screen, visually scan each input field and enter those fields that areSTRYKER VAV USER GUIDE 62-2030—01 2 1. B. • VAV box Capacities range from 40– 4000 CFM in 7 sizes. Variable Air Volume Boxes Ask Price. Table 3. Fiber Free Internal Insulation - 3/4" thick polymer foam - no fiberglass in the airstream, suitable for hospital and cleanroom applications. AX Xenta b3-866. 3. G. LTG. 00 EA Faulkner Haynes categories page 100–4100 CFM PSC or EC motor options AHRI 880 and ETL certified See Product Details Johnson Controls Single Duct (TSS) All the benefits of single duct units while performing at extremely low sound levels. AFX24-MFT N4. Call Us +966 9200 2 46 43 +966 5554 8 08 10. On the Unit screen, scan each input field and enter the fields that are blank, and change default field values that appear. Single Duct Boxes - 80 to 8,000. . This length is required for the air profile in the duct to even out before entering the box. Limitations of traditional airflow controls. On the Unit screen, visually scan each input field and enter those fields that are blank. 288892. Streamlining Your Workflow with the Price Engineer Toolkit. Basic Box With Electric Coil With Attenuator ATT With Attenuator ATT5 9 10 in. 00 EA DESV16 $353. There are several basic types of variable air volume (VAV) units. 02-3168235. Connect a SimplyVAV sensor to the controller with a standard Ethernet cable. NECC brings a diverse offering of products and solutions to help our customers install and maintain their VAV systems at peak performance levels. CHICAGO, Aug. What does VAV stand for in Box? Get the top VAV abbreviation related to Box. Model SDV Single Duct Terminal Unit - Bare Box: Check up to five results to perform an action. VAV Boxes Ask Price. Price Range : Rs 15000 - 80000 / Piece . o. Hahn-Mason has 10 offices conveniently located in Raleigh, Charlotte, Asheville,. The stepper motor quickly and accurately adjusts the damper position in response to new conditions, minimizing position hunting and motor runtime. box +L º®®SLSº™pºLºf™+ystem ©2021Trane VAV-PRC011Y-EN Introduction. available with any of the standard Price liner options. You can make this controller fully operational by using the MAP to select the appropriate VAV box application, thereby, saving field technicians' time by eliminating the provisioning workflow. Add to Project List. Selection of VaV terminals with a close coupled, independent silencer is a complex process with unpredictable results. 999 Yes Square Feet or Square Meters as determined by the application. 00 EA Sell Price: $253. Digital Single Duct Terminal. The terminal unit contains a primary-air damper (a butterfly damper) which modulates (changes position) according to signals from the automatic. Inlet sizes: 6”,. C. com | (800) BUCKLEY. Price Industries - Who We Are. I'm looking at a the newer VariTrane Single-Duct VAV boxes (VCCF series), and the numbers you are giving above. 7 MPa Surface Treatment: Galvanized. 25 m/s] air velocity through the inlet collar. Zinc coated steel casing, mechanically sealed, low leakage construction. 2 IOM • VAV-SVX02*-EN — VariTrane™ Pneumatic Controls Receiving and Handling These units are shipped completely assembled with the A fan powered terminal unit (FPTU), commonly referred to as a fan powered box (FPB), is an air terminal unit which contains both a primary air inlet, as well as a local motor and blower assembly. (124 products available) View by: List | Grid || Supplier Location Near Me All India Mumbai Bengaluru Delhi Chennai Watch Video Pressure Independent VAV Box ₹ 8,000/ Unit. For information concerning controls, components, sequence of operation, etc. Sizes: From 100 up to 630mm D. mm. It has a wide product range of Air Distribution Products. AIR MASTER EQUIPMENTS EMIRATES LLC P. TROX Easy Product Finder Fast. This growing building “smarts” comes with big benefits – energy management tightens, tenant comfort becomes more commonplace, and cost savings grow. Call 1-800-552-5669 (outside of. galvanized steel. If one VAV box cannot meet noise criteria, consider using two. VariTrane™ variable-air-volume units (VAV) are among the industry leaders in quality and reliability and are designed to meet the specific needs of today’s applications. Johnson Controls Pneumatic VAV. ECLYPSE Connected VAV Controller – ECY-VAV Series. , please refer to the documentation provided by the controls contractor. The RDV air volume control valve is used to control exhaust air in general room exhaust applications. Overview. CCTV) CM LISTED CERTIFIED TM VAV Terminals AHRI Standard 880 . The following steps will be illustrated on the next two. Daisy chain the diffusers and you would have better control over a particular area wouldnt you? Reply . Discharge and radiated sound power for a 700-cfm parallel fan powered VAV box. The Bypass VAV system combines the comfort benefits of VAV with the cost effectiveness and simplicity. 0-2. 00% $352. Nailor 3000 and 3100 Series Terminal Units are among the most versatile VAV boxes on the market, providing easy HVAC system integration with diverse control packages. D3001 NAILOR 12 INCH SINGLE DUCT VAV BOX. . 03 inch W. You can make this controller fully operational by using the MAP to select the appropriate VAV box application, thereby, saving field technicians' time by eliminating the provisioning workflow. For example, the maximum rating of a VAV box for a general office with a desired NC level of 30 should be no more than NC 35. S. Buckley Associates, Inc. VAV terminal units have been widely used for space comfort conditioning over the last 30 plus years. LED State Blink Rate Status or Condition OFF not applicable No power to processor, LED damaged, low voltage to board, or controller damaged. the Symbio® 210 Programmable Variable-Air-Volume(VAV) Box Cont roller Installation, Operation, and Maintenance Manual (BAS-SVX084*-EN). 3. Built-in sound baffle for low sound levels, both radiated and discharge. vaults, and cabinets must be returned in the original shipping box and packaging materials. ·. The expansion modules come equipped with a ribbon cable that is easy to plug in from the PIC to the selected module. Also find Variable Air Volume System price list | ID: 22422561655Stryker LON VAV: CVL4022AS-VAV1 and CVL4024NS-VAV1 only and For Stryker BACnet VAV: CVB4022AS-VAV1 and CVB4024NS-VAV1 only). When configuring the EVCB controller K factor, 515 would be entered. As the temperature raises the VAV damper opens to send a designed amount of airflow to the space/ or room. RL/RM/RH with extended casing. Discharge and radiated sound power for a 700-cfm shut-off VAV box. 2. Prices are subject to change without notice. Air duct system 3. A sensitivity analysis is also conducted. The Titus ESV is unique as it incorporates many design features that increase performance, decrease service and. com. Minimum airflow limit for digital controls is based on min 0. Fan Powered Air Terminal Units - Parallel and Series - 150 to 5,600 CFM. Air Handling and Distribution: Routine Maintenance: Chapter 2 FCU and VAV Box In this module, we will look at how to inspect and clean FCUs. A terminal unit is also called a VAV box, VAV unit, or outlet box. . • (PIC-VAV) - VAV module (optional) provides air˜ow sensing for true VAV control. For information concerning controls, components, sequence of operation, etc. CONNOLS-AIR VAV box generate low noise at design. 00 EA Single Duct Terminal Unit (VAV) @ 8" inlet $253. We’re here to help you. This generation of VariTrane units builds upon Trane’s history of quality and reliability and expands the products into one of the most complete variable-air-volume units offering in. Opal Hvac Engineers Private Limited. Ability to integrate lab controls into any BAS, eliminating gateways. Condition: New. download the unit with the appropriate VAV programs and configuration settings for the unit. 33RL-SS. Our company holds immense experience in this domain and is indulged in presenting a wide assortment of VAV Boxes to our customers. 00 EA Single Duct Terminal Unit (VAV) @ 10" inlet $261. The actuator can be positioned anywhere between 0°and 90°by the controller. The sale of certain items may be geographically restricted. MR. ₹ 30,000. The series fan units are specifically designed for quiet operation and they also offer improved space comfort. Do not mount this directly after the main fan, as the transducerWebSelect VAV Selection/Pricing Quick Start User Guide Page 4 Step 2 - Selecting the First VAV Box in a Project Note: The program selects, configures and prices VAV boxes all at once so when you price a box, the engineering rules are checked at the same time. This probe needs to be installed about 2/3 of the way down the main supply duct run. Results are presented from a multiple site field demonstration in which APAR and VPACC were embedded in commercial AHU and VAV box controllers. VAV Boxes. VAV systems can be integrated to BA system via DDC control. List price: £578. com | (800) BUCKLEY. These reheat coils can be either electric or hydronic. The CV series VAV box controller is shipped with a factory-installed library of the most popular VAV box control applications. VAV BOX VAV BOX AIR HANDLING UNIT Energy Recovery with Variable Air Volume Preconditioner Applications These diagrams illustrate how energy recovery units can be used in conjunction with other HVAC equipment. aeVolumetric fl ow controllers Control function VAV/CAV and Open-Loop V nom 1) Application specifi c nominal volumetric fl ow setting, dependent upon VAV box parameters. ·. Overview. Incorporation of an airflow sensor allows the SDV to compensate instantly for any change in supply air pressure that might alter the supply volume resulting in a pressure independent variable air volume system. The Price Intelligent Controller is also expandable for BACnet networking capabilities, and for Pressure Independent control. The simplest VAV system incorporates one supply duct that, when in cooling. This is the most basic type of VAV box. in. The vav box market is projected to grow at a CAGR of 4. [1] [2] The advantages of VAV systems over constant-volume systems include. Next. You need about 16”-18” of clearance from the inlet of the VAV to fit the retrofit kit in. Following extensive research on VAV systems involving design engineers and contractors, we have produced a range of fan powered terminal units. Figure1. This manual covers the features, specifications, dimensions, wiring, and maintenance of the VAV products, including the damper, fan, heating coil, and controls. Innovative. 2008). On controls mounted by Price but supplied by others, the air volume ranges are guidelines only. See examples below. for VAV pressure independent operation. com | ELEctrIc coILs - Manual 3 iNstAllAtioN AND MoUNtiNG iNstrUctioNs. Single Blade, Dual Density Control Damper With Polyolefin Insulation Seal. The terminal unit controls are supplied by the controls contractor and either factory or field mounted and wired. Get Best Price. Single Duct Terminal Unit, Direct Digital Control, Pressure Independant. Johnson Controls Pneumatic VAV. 7mm thickness. Maximum airflow limit is based on max 1. zones. VAV pressure independent operation. VAV devices traditionally provide a variable flow rate to the space, this is not always the case there may be other reasons why a VAV device may be more suitable. Based on the graph, we can see that the maximum airflow for a 6" VAV box is 515CFM. VAV Boxes and Air Terminal Accessories: Single Duct Terminal Units Hot Water Reheat Coils Pneumatic Actuators and Controls. Following extensive research on VAV systems involving design engineers and contractors, we have produced a range of fan powered terminal units. On the Action menu, click VAV Box Flow Test to ensure that the flow sensor and damper are connected correctly. V i2 866"' i2 865. With its integral airflow sensor and programming flexibility, the VAV-SD provides every option for precision VAV box control. Comfort Calculator. xml ¢ ( Ä–ËnÂ0 E÷•ú ‘· 1°¨ªŠÀ¢ e‹Tú &ž Óø!{xý}' ¢ª ‚ Q7‘’™{ïq&Òd0Zë"Z‚ Êš„õâ. You can configure and select multiple boxes in one application. Their primary function is to regulate airflow to a zone, in response to zone temperature requirements. There are 2-3 types of power point depending on the kind of appliance that would be connected to that point. Note : The unit is supplied as. Dylan Mechanical Construction Services, Inc Commission Agent: Harold Cullick, PE May 24, 2010 BT Collins High Tech RTS, Sacramento, CA. At the heart of our VAV Terminal Units is our pioneering and patented Aerofoil Control Valve, which provides industry leading performance any way you look at it. Traditionally, a Permanent Split Capacitor (PSC) type motor was employed in these air terminal units and was capable of local adjustment only. & VAV Boxes Item Number Size CFM At 500FPM Neck Velocity List Price PDDR1010/1212 10 x 10 / 12 x 12 347 $43. The new range of products merge air flow control functionalities with the monitoring of other parameters like temperature. FEATURES: Sinro VAV box can be used in low pressure or medium static pressure, single duct or double-duct system. Can match with pneumatic Control, Analog Electronic Control or Direct Digital Control (DDC); 3. Hard stops must be provided for 45° and 60° boxes at both fully closed and fully openWe would like to show you a description here but the site won’t allow us. I. From here you will be prompted, step-by-step, to make your selection. “Dual Maximum VAV Box Logic”, ASHRAE Journal, December 2012. If you need help selecting the best unit for your application, call us at 800-227-9800. 1. Fan Powered VAV Boxes. 00Asli Variable Air Volume (Vav) Terminal Units are volume flow rate controller for supply air on variable air volume system. Dual Maximum VAV Box Logic. 00 EA Single Duct Terminal Unit (VAV) @ 6" inlet $240. Sell. (511 mm) 44 3/8 in. 2 Stock Catalog & Price List Terms and Conditions PriCeS All prices listed are F. joey791. Price. It works in conjunction with a thermostat to measure the temperature and send signals to the damper to open or close accordingly. Ideally suited for use with the TEL AFA5000 Room Space Controller. G. looking at the VAV inlet with the air hitting you in the back of the head 0 = None 1 = 1 Row Coil 2 = 2 Row Coils 3 = 3 Row Coils 4 = 4 Row Coils Example ZCU Order Pre-engineered VAV box with hot water reheat coil, 14 in. These units are designed to control the airflow rate of conditioned air into an occupied space in response to a control signal from thermostat or Building Automation System (BAS). • Unit has one primary air inlet, one rectangular discharge outlet to the room and one rectangular bypass discharge outlet. Products are available in Steel, Aluminum, Extruded. Available only in Asia Pacific. The blower and motor should be inspected annually for accumulation of dust and dirt. For example, consider a 700 cfm single-duct shut-off VAV box:VAV pressure independent operation. Virtech Automation Engineers - Offering VAV Box,वैरिएबल एयर वॉल्यूम सिस्टम in Delhi, Delhi. Discharge Air Temperature Control mode:Web‐Select VAV Selection/Pricing Quick Start User Guide Page 4 Step 2 - Selecting the First VAV Box in a Project Note: The program selects, configures, and prices VAV boxes all at once so when you price a box, the engineering rules are checked at the same time. Lower duct static pressure is needed for the modem VAV box. Price. 15 V750-06-I and V750-06-C 7 78. As the room temperature decreases, the room. For information concerning controls, components, sequence of operation, etc. 44 3/8 in. 7 yrs CN Supplier. VAV boxes are simple devices with a limited number of operation modes and possible faults. (0 to 25. 03 inch W. A), Zallaq Sofitel resort ( Bahrain), command of military works ( Abu Dhabi schools), etc, are some of the few projects amongst many. 5. All applicable terminals are rated in accordance with AHRI Standard 880, and are ETL listed to ensure product integrity and safety compliance. VariTrane ® variable-air-volume (VAV) units lead the industry in quality and reliability and are designed to meet the specific needs of. VAV box and save configurations. 999 No --Exhaust Duct [EXH] dP Offset [dPO] 00. Air Side; Prev. 1. For more friendly and professional advice on VAV units, please get in touch via our contact us page or give us a call on 01842 765657. TROX is one of the world's leading manufacturers of VAV terminal units and offer a range of products to. Energy-efficient fan motor, permanent split capacitor type, mounted with vibration isolators. Through a massive VAV box laboratory testing [83], it is reported that most VAV terminal units are highly accurate down to about 0. The VAV device comes with controls that can measure a setpoint within the space being controlled, as well as normally temperature, humidity, CO 2 , and/or some other. GDB181. ©2022 Trane VAV-PRC012AC-EN Introduction This catalog includes parallel and series fan-powered VAV terminals, including standard and low height models. Application: VAV/CAV, position control. $539. VAV Boxes: In each zone, a VAV box is installed, typically in the ceiling or walls. 7 – 7 m/s; High control accuracy, even in case of unfavourable upstream conditionsTH500 SIN DUT SINGLE DUCT TH–4 2020 Metal Industries For complete product specifications and submittal data, visit us at Unit Size Inlet Size A Width Height Unit wt. System optimization and monitoring of the whole system can be achieved by computerized control. 12 VAV-PRC011Y-EN Digit12,13,14,15—Controls (continued) DD87=UC210DDC-Basicplus-Local comparison of VAV boxes and should not be used to predict the NC level in the actual installed application. buckleyonline. Includes 1 Sensing Point (SSS-1002); 2 Sensing Points (SSS-1003); 3 Sensing Points (SSS-1004); 4 Sensing Points (SSS-1005) Installation Guide; One 3-5/32 in Long (80 mm) sensor; One 5-13/32 in Long. Contact Supplier. 5. Optional Bottom Access Door (AD) SDV8 Size 4 – 16 Optional Bottom Access Door (AD) Optional NEMAT Controls Enclosure 18 1/2” (470) 4 3/4” (121) Multi-Point Sensor (Gauge Taps. Bureau of Labor Statistics, Average energy prices for the United States, regions, census divisions, and selected metropolitan. ellThis design allows the primary airflow to supply the cooling demand, similar to single duct terminal units, leaving the recirculating air section to provide the heating air volume. V MNL. Let’s look at one type of. Only available through manufacturers of VAV boxes. Help. as much as $2000 to $6000 for a VAV box installed and $200 to $450 for a VAV diffuser installed. CONNOLS-AIR VAV V750 X-Sensor with its damper is AMCA certified. Belimo ZoneEase TM VAV is the most innovative VAV-solution that simplifies the commissioning process. The VAV box is connected via a cable to a thermostat which is located within the room, or the zone. Basic Box* With Electric Coil With Attenuator ATT. TROX is one of the world’s leading manufacturers of these units. You need about 16”-18” of clearance from the inlet of the VAV to fit the retrofit kit in. ThisFeatures: - Capacities ranging from 24 - 1888 l/s ( 50 - 4000 cfm ) - Pressure independent operation.