com. A key element of VAV boxes is differential pressure sensors that constantly measure airflow and direct the control system to make adjustments as needed. 00 AIR MASTER EQUIPMENTS EMIRATES LLC P. p. Single Duct terminals are the fundamental building blocks for Variable Air Volume (VAV) systems. a VAV box should be three times the diameter of the inlet. Citation 2003) for Variable Air. 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. ABOUT STRYKER VAV 1. Minimum airflow limit for digital controls is based on min 0. The fan-powered VAV is built the same as the traditional, but it also contains a fan which is triggered when the area. Low noise level with sound attenuators. When the room or VAV zone exceeds a pre-set temperature, the fan is triggered. Types of Variable Air Volume (VAV) Units. 1: Solving The Problem Of Simultaneously Heating Parts Of A. The Titus ESV is unique as it incorporates many design features that increase performance. View Profile View Forum Posts View Forum Threads. 3. 00 50. 45˚ rotation. Discharge and radiated sound power for a 700-cfm series fan powered VAV box. & VAV Boxes Item Number Size CFM At 500FPM Neck Velocity List Price PDDR1010/1212 10 x 10 / 12 x 12 347 $43. Selection of VAV terminals with a close coupled, independent silencer is a complex process with unpredictable results. August 19, 2009. The fire damper blades are roll formed from 1mm thk. Table 1 – A Comparison of VAV Diffuser and VAV Box Systems Attribute VAV Box Reheat System VAV Diffuser Reheat System System Description Central cooling fans on roof supply 55˚ to 60˚F air in ceiling mounted ducts to VAV reheat boxes in perimeter zones. Please Contact us for your Account Level Pricing. Price Order No. Highly effective integral attenuator; Optimised for airflow velocities of 0. Powder Coated Gas Control Box, For Laboratory Use, Model Name/Number: Migfitt-mcb. 001 - 9. $539. Variable-Air-Volume (VAV) Box Controller • VAV-SVX07*-EN — Tracer® UC400 Programmable BACnet® Controller for VAV Units • VAV-SVP01*-EN — VAV VV550 LonTalk® Controller • VAV-SVX01*-EN — VAV-UCM 4. Ideally suited for use with the TEL AFA5000 Room Space Controller. RDV. DNT-VAV-DG1-A Delta 331036 DNT-VAV-DG1-A. 00. Standalone coils supplied as duct heaters are certified in compliance with UL 1996. List Price PDF6/1212 6” Dia 12 x 12 98 $40. priceindustriescom | PRICE PRODI ® anual 3 PRODIY® - DIITAL VAV DIFFUSERS BACNET LIST Object Name Units Default Range Description R/W RETAINED ON POWER FAILURE AV9 Binary Output Application N/A N/A 0-6 Configuration of the spare binary output: 0 - ON during Heat (Load = Trip Point to +100%) 1 - ON during Cooling (Load =. VAV box or VAV terminal is kept on the branch duct which is coming from the main branch. . The Johnson Controls single duct units along with. Single Duct VAV (TSS) Critical in today’s building environments is the need to place significant emphasis upon the occupants comfort and indoor acoustics. Energy saving features described above contributes to saving in carbon footprint. Consult the appropriate Price Control Diagram for specific applications. Products are available in Steel, Aluminum, Extruded. techniques for designing high performing VAV systems at minimal cost. Basic Box With Electric Coil With Attenuator ATT ATT5 9 10 in. Ability to integrate lab controls into any BAS, eliminating gateways. As the room temperature decreases, the room. Clause 54” List Price % Discount NYS Net Price BAS Integration PC1251 (Trane) Trane Bridge 16" DIN Rail Encl Solid Door, 120 VAC X13651618010 1 $ 704. Saudi Arabia. The Titus ESV is unique as it incorporates many design features that increase performance, decrease service and. Labor Rates, Subcontractor Utilization List of Subcontractors Lot 1 (Product Only) Lot 2 (Product and Maintenance) Lot 3 (Product, Installation, Systems Integration, and. • No annual fee and available for free download in Apple and Google Play stores. VAV box and save configurations. Norway PRODUCT OVERVIEW. 1. These units are available with various casing materials & treatments with factory mounted actuators as required. 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. Share. These reheat coils can be either electric or hydronic. Fiber Free Internal Insulation - 3/4" thick polymer foam - no fiberglass in the airstream, suitable for hospital and cleanroom applications. IndiaMART. 02 in. NKQ24A-VST. Sizes: From 100 up to 630mm D. 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. 1 Germany Variable Air Volume (VAV) Box Market Size and Price. • SDV8- Controls supplied and mounted by Price. Single Blade, Dual Density Control Damper With Polyolefin Insulation Seal. Fresh, outdoor air enters the energy recovery unit and is pretreated before entering the heating and cooling equipment. Add to Project List. Dual Maximum VAV Box Logic. ae THE NEWEST EDITION OF THE PRICE PRODUCT CATALOG. 00 PDF6/2424 6” Dia 24 x 24 98 $58. Also features a model with power over Ethernet. Variable air volume. Available only in Asia Pacific. Choose an existing Project List to add this product:. Environmental Air Management Products for Industry Serving the HVAC Industry Since 1955 Home About Us Blog Contact Us. Can be combined with damper actuator optimally suited to the room pressure application. These VAV Boxes are valued amongst our clients for its features like low maintenance and best performance. are available with any of the standard Price liner options. The open end-stop is automatically set for 90° boxes. Contact Supplier. ORIGINAL PRICE LIST 11. Contact us The most of important drawback is that VAV boxes are quite expensive, frequently costing between $3,000 and $6,000 installed. Mumbai, Maharashtra. A longer answer is required. If you need help selecting the best unit for your application, call us at 800-227-9800. sg 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. 6mm thk. With its integral airflow sensor and programming flexibility, the VAV-SD provides every option for precision VAV box control. • (PIC-VAV) - VAV module (optional) provides air˜ow sensing for true VAV control. The Johnson Controls single duct units along with all VAV family model types of Johnson Controls are manufactured and assembled with a patented multi-point, center-averaging, airflow sensor called the FlowStar sensor. January 27, 2022. index. w. 33RL. From here you will be prompted, step-by-step, to make your selection. 00 Item Number Size CFM At 500FPM Neck Velocity List Price PDDR6/2424 6” Dia, 24 x 24 98 $52. You can see it’s a pretty basic box. Call 1-800-552-5669 (outside of. Selection of VAV terminals with a close coupled, independent. TM UT TALLAT TAT DT 2 TM UT TALLAT TAT DT Manual priceindustriesco PRODUCT OVERVIEW Fan Powered Constant Volume Units – FDC-1-X, FDC-G2We are the best manufacturers & suppliers of variable air volume box, vav box, air volume terminal units & variable air volume system in Dubai, Abu Dhabi, UAE, Iran, Yemen, Israel, Oman, Qatar, Syria & North Africa. single duct vav - sdv/sdve models pressure independent single duct vav - sdv/sdve models performance data 50 100 150 250 150 250 450 600 200 500 800 1100 300 800 1200 1900 450WebSelect 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. For 3 Decades, COSMOS manufactures for HVAC industry, introducing innovative and efficient Air. For information concerning controls, components, sequence of operation, etc. หน้าแรก > สินค้า > กล่องควบคุมลม Variable Air Volume (VAV Box) Variable Air Volume (VAV Box) Krueger. . These VAV Boxes are valued amongst our clients for its features like low maintenance and best performance. The X45B Controller Card is a CBL32 universal multi-functional analog/digital input/output controller device. (445 mm) 20 1/8 in. Tel: +603-8075 4933 Fax: +603-8075 4911. Unlike most other air distribution systems, VAV systems use flow. Single Duct terminals are the fundamental building blocks for Variable Air Volume (VAV) systems. As an option, these terminals can be equipped with hot-water heating coils or electric heaters. 12-20-2013, 03:02 PM #2. ©2022 Trane VAV-PRC012AC-EN Introduction This catalog includes parallel and series fan-powered VAV terminals, including standard and low height models. Rectangular VAV terminal units for the supply air control in buildings with variable air volume systems, demanding acoustic requirements and low airflow velocities. This truly varies the volume of air to the space based on the space temp deviation from setpoint. 00% $352. Fan-less or cooling-only VAV boxes are thermostat-controlled assemblies with an integral damper. com | (800) BUCKLEY. October 1, 2014. This probe needs to be installed about 2/3 of the way down the main supply duct run. On the Unit screen, visually scan each input field and enter those fields that areby Titus. 00 - 99. VAV pressure independent operation. Cooling only in interior zones - reheat boxes optional. 4. lb. Can match with pneumatic Control, Analog Electronic Control or Direct Digital Control (DDC); 3. 2. • Unit has one primary air inlet, one rectangular discharge outlet to the room and one rectangular bypass discharge outlet. ThisTo maintain the necessary air quality and enable economical operation of the system, all air flows of a system must be monitored and controlled. Explain how VAV boxes should be ducted to minimize life cycle costs 4. Buckley Associates, Inc. The thermostat will indicate to the VAV terminal if it needs to increase or decrease the flow rate to meet the cooling demand. This controller provides all wiring terminations for system and local communication and power. Quick selection Guide/Price List. FEATURES: Sinro VAV box can be used in low pressure or medium static pressure, single duct or double-duct system. Single Duct. Box 50708, Dubai United Arab Emirates AIR TERMINAL UNITS (VAV) WE ZONE AIR Ver: May 2019. in. 20 1/8 in. VAV Boxes and Air Terminal Accessories: Single Duct Terminal Units Hot Water Reheat Coils Pneumatic Actuators and Controls. Variable Air Volume Boxes Ask Price. 5 Hz as an input for the 24VAC pulsed signal. 00 PDDR4622/4824 46 x 22 / 48 x 24 3514 $129. Features. Rotary actuator for VRU, 20 Nm, AC/DC 24 V, 120 s, IP54. Fan Powered VAV Boxes. 00 BAS Integration PC1251 (Trane) Trane Bridge 16" DIN Rail Encl Display Door, 120 VAC X13651619010 1 $ 733. Pressure-indePendent (indePendent of static Pressure entering VaV) The quantity of airflow to the space is measured at the VAV based on feedback from an airflow-measuring device in the box. Integrated 3:1 design that works in any system • Integrated design eliminates wiring multiple actuator components into one VAV box for simplicity. O Box – 3180 , Ajman Phone: +971 6 7436900 Email: info@airmaster. AV-100 Series VAV, uses a single actuator-driven primary air damper working in concert with a bypass port balancing damper. Variable Air Volume (VAV) is a type of heating, ventilating, and/or air-conditioning (HVAC) system. 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. 1/2" diameter plated steel drive shaft. For those special needs, we also provide products customized to fit all needs. Variable Air Volume or VAV Boxes is the most common method employed in commercial/institutional buildings and is both an effective and economical means of temperature control by Regulating the Air Flow. Many of these, however, have neither provided satisfactory comfort nor met baseline energynear the electrical control box. Belimo ZoneEase TM VAV is the most innovative VAV-solution that simplifies the commissioning process. To install the SRDV and convert the system to variable air volume, simply cut a rectangular hole in the existing ductwork and slide in the SRDV retrofit terminal. Ninth Wave Technologies - Offering Galvanized Steel Casing Variable Air Volume Box, For Industrial, Shape: Circular/Round at Rs 15000/piece in Hyderabad, Telangana. Price Industries TBDI4100 - T-Bar Supply Diffuser with 1" Slot Spacing, 2 Slot, Coated Fiberglass Insulation, Black Blades/Field Adjustable. This length is required for the air profile in the duct to even out before entering the box. Only available through manufacturers of VAV boxes. 5Pa]. Add to cart. Adjustable fan speed control. It provides commissioning support via the cloud to enhance the user experience and reduces project complexity and downtime while increasing connectivity, data transparency and cost-efficiency. 2 Japan Variable Air Volume (VAV) Box Market Size and Price Analysis 2015-2020 4. For information on these accessories please refer to the Terminal Units Accessories catalog. 20. View Mobile Number. , please refer to the documentation provided by the controls contractor. See OSP-0302-10 for a list of approved controls. There are many variations on what you will find for boxes from simple shutoff boxes to those with reheat, and either series or parallel fan powered units. V i2 866"' i2 865. 4. Figure 1 VAV System Schematic 2 The VAV system works by automatically reducing or increasing the amount of cool air allowed into a space (zone). AX Xenta b3-866. The Titus ESV is unique as it incorporates many design features that increase performance, decrease service and. • An integrated vav box with direct digital controls can provide for a bundled offering with lower total installed costs. Based on the graph, we can see that the maximum airflow for a 6" VAV box is 515CFM. On the Unit screen, visually scan each input field and enter those fields that are blank. 00 EA Single Duct Terminal Unit (VAV) @ 10" inlet $261. This configuration is not supported by factory preloaded applications. buckleyonline. A single duct terminal unit, also commonly referred to as a VAV, is one of the most simple and cost effective devices capable of controlling and delivering airflow to a. Dariya Ganj, New Delhi No. The following steps will be illustrated on the next two. 1: Solving The Problem Of Simultaneously Heating Parts Of A. This report describes the transfer of the FDD methods from research to commercial use. galvanized steel. Air handling units 2. Because VAV systems can meet varying heating and cooling needs of different building zones, these systems are found in many commercial buildings. Flexible Duct. However, VAV boxes are very numerous in a typical HVAC system, resulting in a large amount of data toThe BACnet PTEC Terminal Box (VAV) Controller consists of an electronic controller assembly and on-board differential pressure sensor. - Available with electronic or direct digital control. No Interest if paid in full in 6 mo on $99+ with. These can include sales-order- specified airflow setpoints. A typical configuration for VAV would be to set the blower to hit a fixed static pressure target (say, 1 to 1. Spacing is determined by the largest air volume. The VAV Box MDB port plug-and-play hardware uses artificial intelligence and two cameras to scan the consumer’s photo ID and age information and verify the image with the camera view of the person at the machine. Seriesfan-poweredterminalunit(VSCF). Variable Air Volume Terminals – Description. If you need help selecting the best unit for your application, call us at 800-227-9800. 0" w. 18 - $0. some applications a stainless steel VAV box may be required on the exhaust air stream for the hood but not for the general exhaust from the laboratory. kg. VAV boxes allow you to control the temperature of the room by controlling air volume, not air temperature alone. Features. Variable-Air-Volume (VAV) Box Controller • VAV-SVX07*-EN — Tracer® UC400 Programmable BACnet® Controller for VAV Units • VAV-SVP01*-EN — VAV VV550. IndiaMART > Industrial Coolers, Blowers & Fans > Air Blower. 00 EA $137. • Richardson, TX 75081 Phone: (972) 680-9136 | Fax: (972) 497-0450 | E-Mail: [email protected] A vav box is a more economical packing toolbox for all products. Status LED States. There are 2-3 types of power point depending on the kind of appliance that would be connected to that point. TROX Easy Product Finder Fast. An additional program, called R-Seller, allows an operator to have a live person remotely help verify age. ·. On the Action menu, click VAV Box Flow Test to ensure that the flow sensor and damper are connected correctly. Help. Many VAV controllers require a minimum differential pressure signal of 0. 20. efer to the control diagram supplied with each unit R for field wiring of thermostat and any accessories. The terminal unit controls are supplied by the controls contractor and either factory or field mounted and wired. It works in conjunction with a thermostat to measure the temperature and send signals to the damper to open or close accordingly. The actuator can be positioned anywhere between 0°and 90°by the controller. When coupled with the patented FlowStar™ airflow sensor, ENVIRO-TEC terminals are among the quietest and most accurate airflow control devices in the industry. CAV and VAV are types of ventilation systems that supply air to each building region (or “zone”) and help regulate internal air temperatures. Available with standard PSC or high efficiency ECM brushless DC motor. This solution lets OEMs integrate. 3. casing on larger sizes for added durability. A minimum and maximum airflow are calibrated for each VAVThe 101s: Intro to VAVs. Price Lab Tests Perforated diffusers with blades in the neck, Cooling Mode. Reply . 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. These controllers provide many options and advanced system features that allow state-of-the-art commercial building control. The K factor is the point at which the size of the box, shown in inches, converges with the maximum airflow at 1"w. 00 Model: Enclosure Enclosure for VAV Box (18 x 12) Quick shop Add to cart Mounting Bracket for Titus II/IIA/III Titus $5. Trane makes a retrofit kit for a D series box that replaces those older style air valves with a jack shaft and new flow ring. Variable Air Volume Boxes Ask Price. The RDV air volume control valve is used to control exhaust air in general room exhaust applications. • SPV8 - Pneumatic controller and acutator supplied and mounted by Price. The VAV box will look something like this. This saving (200 - 20 = 180Pa) related to a building of, say, 40,000m2 with an airflow of 15 litres/sec/m2 would achieve a reduction of 308,000kwh per annum, or in. When these numbers have been defined, the labor costs will be determined by a calculation of the number of man hours needed to clean each element multiplied by the hourly rate. LTG (Thailand) VAV Box และ CAV Box made in Germany สำหรับVariable air volume และ Constant air volume เหมาะสำหรับงานอาคารสูง ออฟฟิตสำนักงาน และคอนโด มีขนาดให้เลือกใช้. On the Unit screen, scan each input field and enter the fields that are blank, and change default field values that appear. . Return air by ceiling plenum. 2537 King Abdullah Ibn Abdul Aziz Rd. be installed directly in the supply duct, before the first VAV box or VAV diffuser in the branch being served. Product search A-Z Find out quickly and simply. Digital Single Duct Terminal. Made with FlippingBook - Online Brochure Maker. 5 in. The MQTHI5 unit sets the standard in the industry for construction, performance, and quality. velocity pressure (on the far right). View Product Details. Price fan powered terminal units are supplied with permanently lubricated motors. NORWAY COMPLETE PRODUCT OVERVIEW POSTER. 7 billion in 2019 and is projected to reach USD 6. 4 3 7/8 99 10 254 12 305 8 203 12 5 5 4 7/8 124 5 127 12 305 8 203 12 5 6 5 7/8 149 5 127 12 305 8 203 12 5 7 6 7/8 174 5 127. It is located inside the duct work and is designed to control the air flow to a specific area, called a "zone. If the damper for a 90° box closes CCW, rotate the coupler to the CCW mechanical limit. mm. com | ELEctrIc coILs - Manual 3 iNstAllAtioN AND MoUNtiNG iNstrUctioNs. VAV systems supply air at a variable airflow rate from an air handling unit (AHU). box 50708, dubai united arab emirates air terminal units (vav) we zone air ver: may 2019. • VAV box Capacities range from 40– 4000 CFM in 7 sizes. Unlike constant air volume (CAV) systems, which supply a constant airflow at a variable temperature, VAV systems vary the airflow at a constant temperature. 5. Ulta-Loc with NEMA 1 Enclosure & Bottom Access Door. 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. 33RL-SS. See Figure 1 below for a schematic representation of the concept. Call Now for Price: Add to Wishlist. VAV Cooling Only (Application 6620 -short board, 6600 long board) VAV Cooling or Heating (Application 6621 -short board, 6601 long board) VAV with Electric Reheat or Baseboard Radiation (Application 6622-short board, 6602-long board) VAV with Hot Water Reheat (Application 6623 -short board, 6603 long board)Type: Parallel fan-powered. Programming is. Made with FlippingBook - Online Brochure Maker. The Price FDC, series flow, fan powered terminal unit, is designed to supply air volume to the occupied zone in response to a control signal. 8 W/sq. HVAC systems in commercial buildings are getting smarter every day. Powder Coated Aluminium Carrier Variable Air Volume Control System, For Industrial, Shape: Circular/Round. 7 yrs CN Supplier. Locating VAV diffusers is no different than locating standard diffusers. So preferred by HVAC consultants across INDIA and all leading system integrators for various projects. g. Price. in. 49 per therm. Many times this can be seen from the floor without climbing a ladder. On the Unit screen, visually scan each input field and enter those fields that areVAV Diffusers 39 Air Terminals 39 Sheetmetal Ducts, Elbows & Fittings 40 - 41 Sheetmetal Accessories 42 - 43. When the system is functional and has been controlling for eight hours or more, evaluate the system operation using Collect VAV Diagnostics on the Action menu. These controllers also provide 2 freely configurable PID loops to make use of any free pins in the controller. With three individual airflow sensors, located in. Honeywell VAV box used for air distribution Durga Trading Co. The most of important drawback is that VAV. 00 EA Single Duct Terminal Unit (VAV) @ 12" inlet $333. Maximum airflow limit is based on max 1. Price Range : Rs 15000 - 80000 / Piece . Model SDV Single Duct Terminal Unit - Bare Box: Check up to five results to perform an action. Comfort Calculator. 1E/BA S55499-D168 VAV compact controller BACnet 1 The manufacturer of VAV box units (OEM) generally configures and assembles VAV compact controllers. The Titus ESV is unique as it incorporates many design features that increase performance. Low-pressure loss over the terminal. Series Flow Fan-powered (TCSB) Johnson Controls new Series Fan Powered Variable Air Volume terminals are available from 100 to 4400 cfm, offering tremendous flexibility to meet a wide variety of HVAC systems design requirements. Receiving Inspection + All Price liner options. required with ducts designed to Price specifications. O Box – 3180 , Ajman Phone: +971 6 7436900 Email: info@airmaster. We also conduct a series of tests to check the quality of these products. Buckley Associates, Inc. Quiet Type with dissipative silencers and Hospital. Basic Box* With Electric Coil With Attenuator ATT. This exclusive, patented, pre-assembled variable air volume (VAV) system, delivered to job sites ready for immediate installation, will help you save time and money on job installations. Figure1. Price: US $699. Also find Variable Air Volume System price list from verified suppliers with contact number | ID: 4643486288VAV pressure independent operation. , please refer to the documentation provided by the controls contractor. 3. Daisy chain the diffusers and you would have better control over a particular area wouldnt you? Reply . Hahn-Mason has 10 offices conveniently located in Raleigh, Charlotte, Asheville,. The T3SQ modulates the air volume delivered to a zone to accurately control cooling and heating conditions. 4 Korea Variable Air Volume (VAV) Box Market Size and Price Analysis 2015-2020 4. The Price Intelligent Controller is also expandable for BACnet networking capabilities, and for Pressure Independent control. The terminal unit controls are supplied by the controls contractor and either factory or field mounted and wired. Inlet sizes: 6”, 8”, 10”, 12” / Unit sizes: 2, 3, 4, 5. Citation 2015, Citation 2017; Cho and Liu Citation 2010). By-pass VAV terminals consist of a single primary air damper that shall proportion the total primary air through the terminal to either the ceiling plenum or the space as dictated by the space thermostat demand. These can be a good intermediate option between standard VAV boxes and “air valves”. 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. VAV Boxes $200. This manual considers only terminal units with BACnet Symbio 210 controller DDC/VAV controls. (1127 mm)The Variable Volume Circular type RVP-C provides volume control of extract and supply air systems across a wide range of sizes and volumes to suit any applications. 2. The load calculation software says that with people, . IMHO, rules of thumb are only useful to trigger further analysis. V MNL. On controls mounted by Price but supplied by others, the air volume ranges are guidelines only. A Bypass VAV box provides constant or variable airflow depending on the temperature demands of the space. • Unit has one primary air inlet, one rectangular discharge outlet to the room and one rectangular bypass discharge outlet. Acoustic Media: Inorganic ,fire resistant , vermin and moisture proof sound absorbent. This manual covers the features, specifications, dimensions, wiring, and maintenance of the VAV products, including the damper, fan, heating coil, and controls. The Vav box is used to measure the amount of water used by the customers and is read by the water utility company.