Contact usone VAV terminal; even very large open areas rarely require more than two VAV terminals. 9 - 28 - 15 NFD 8 - 20 - 14 NFD-VAV-2 VAV FLOOR "SWIRL" DIFFUSER WITH ACTUATOR UNDERFLOOR AIR DISTRIBUTION SYSTEMS • VAV COOLING ONLY• EXTENDED DEPTH FLOW REGULATOR/ DUST BASKET OPTION MODEL: NFD-VAV Nailor Industries Inc. read more. 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. A. Download BIM/Revit drawings or speak to an expert. Page 2 of 2. For a given unit size, the minimum, auxiliary minimum (where applicable) and the maximum flow setting must be within the range limits to ensure pressure independent operation, accuracy and repeatability. Nailor Variable Air Volume Terminal Units. A common problem with standard pivoted single blade damper designs is objectionable noise and loss of modulation due to pulsating and/or a snap-closing action of the valve. (0. • Right-hand controls location is standard (shown) when looking inDigital Single Duct Terminal. AT35NW - 3’ Long • for Model 35NW. reserves the right to change any information concerning product or pricing without notice. The fan runs in all modes during all occupied hours. The 33SZ Series Fan Powered Chilled Water Terminals enhance Nailor’s already efficient and flexible Series Fan Terminal Unit product line. Digital VAV Controllers shall be responsible for monitoring and controlling directly connected VAV Terminals as required. Nailor 3000 and 3100 Series Single Duct VAV Terminal Units feature a compact and versatile design that results in a system component which has minimal pressure drop. Variable air volume dampers. Heating and cooling equipment fans, heating and . reserves the right to change any information concerning product or specification without notice or obligation. Additionally, the. Nailor 35N and 37N Fan Powered Terminal Units offer a compact and economical design that provides excellent performance in the most demanding variable air volume/intermittent fan applications. A mechanical engineer must consider several variables and equipment types when designing a VAV system. Multiple Download been Selected. 3 - 12 - 18 3000 7 - 17 - 17 D3001-1 Page 2 of 2. DATE B SERIES SUPERSEDES DRAWING NO. Fiber-free liner. Excess air is diverted through a bypass opening and into the system return. NOTE: Product pictures shown represent the general type of device listed. NECC has arranged to have the manufacturer build a special universal replacement kit to repl ace most of the models already out in the field. 2038 Fax: 803. 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. Quiet Type with dissipative silencers and Hospital Grade boxes are also available. Nailor International Group has representatives in most major cities throughout the world. Nailor model 3210 is an economical dual duct terminal ideal for non-mixing variable volume applications. Critical Room. Page 3 of 3 Dimensions are in inches (mm). SINGLE DUCT TERMINAL UNIT WITH HOT WATER REHEAT • ACCESSORIES DIGITAL CONTROLS • PRESSURE. Commercial Fans; Industrial Fans; Destratification Fans; HVLS Fans; Heaters. Johnson Controls Pneumatic VAV. NailorYou are here. This includes the load on the space, the static pressure in the ductwork, the types of terminal units, and the occupancies in the space. Dimensions are in inches (mm). 6/20 IOM-EHVAV (Supercedes 4/02) Page 1 of 4. 1. • VAV section is lined with 13/16" (21), thick, 4 lb. Static pressure in supply duct and control point for system VFD fan to assure modulation with changing VAV box flow rates. Whether the requirement calls for a constant or variable air volume (VAV) single duct terminal, an electric or hot water reheat option or requires basic attenuation, the 3000 Series terminal units deliver. Fiberglass with a reinforced aluminum FSK facing. q Nailor EZvav See separate submittal. The thermostat will indicate to the VAV terminal if it needs to increase or decrease the flow rate to meet the cooling demand. This article will focus on cooling-with-electric-reheat VAV boxes. Complete Air Control And Distribution Solutions: Grilles Registers Diffusers VAV Terminal Units Fire Dampers Smoke Dampers Control Dampers Radiation Dampers LouversSINGLE DUCT VAV TERMINAL UNITS PRESSURE INDEPENDENT MODEL: 30RW 8EL Nailor Industries Inc. Page 1 of 2 Model Series: 3000 Single Duct 3210 Dual Duct 35S-OAI Series Fan Powered w/ O. V2072 - Transformer 120-24V, 40VA - Foot Mount. Terminal Unit. Grilles. 10. Specialists in. • Richardson, TX 75081 Phone: (972) 680- 9136 | E-Mail: kruegerinfo@krueger-hvac. aeFOR USE IN VAV SYSTEMS & FOR FLOW MEASURING SYSTEMS. boxes in terms of W/cfm. Category:. the controller shall continue to monitor room temperature and reset the cfm setpoint up or down in response to cooling/heating demand 2. 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. Nailor 3200 Series Dual Duct Terminal Units are designed to maintain optimal. Dual. SCHEDULE TPE: PROECT: ENINEER: CONTRACTOR: FAN POWERED TERMINAL UNIT WITH EPIC ECM MOTOR • HEAT ACCESSORIES SERIES FLOW • CONSTANT OR VARIABLE VOLUME MODELS: 35S, 35SW AND 35SE • UNIT. Setting the Rotation Limits Nailor EZvav controllers are manufactured for a damper that rotates 90 degrees from open to close. Pattern Diffusers. Then as the temperature drops below set point the reheaters on the box come on at the minimum flow rate. 5. the discharge box or duct. , offering a complete line of air distribution and air terminal products. ACC. The air handler only drives the cool air through the VAV damper. It is controlled with a Variable Frequency Drive (VFD) using a trim and response control sequence. 1953 – Richard Hahn, Sr. The main is considered upstream of the VAV box, while downstream of the box is considered the low-side supply. See examples below. VAV COOLING CFM 0% 100% AIRFLOW VAV HEATING CFM 03 8 13 THERMOSTAT OUTPUT, PSI MIXING COOLING 18 0%. Controller (ATEC) VAV with Reheat (GLB) with Reheat/Fan/Spare DO . Model TSS terminals provide variable air volume (VAV) control beyond the typical single duct box. Click the link below to send us an email!using Nailor's Diamond Flow Sensor as the airflow measuring device. AT303 - Attenuator, 3 Foot Long. The 35SST "Stealth™" Series has been especially designed for the most demanding applications where premium quality design. 5 - 12 - 22 VAV. IMPORTANT:Electric re-heat units ordered with SCR or SSR, route field wiring near bottom of control box. q Controls enclosure for field mounted controls. The warmerNailor 3000 and 3100 Series Final Units are within the most versatile VAV boxes on aforementioned market, offer simply HVAC system integration with miscellaneous control packages. All Nailor electric heaters are staged per specifications. VariTrane™ Fan-Powered Series Terminal. Standalone coils supplied as duct heaters are certified in compliance with UL 1996. 63) corrosion-resistant steel inclined opposed blade damper with. cooling circulation pumps, and terminal unit fans shall cycle off and terminal unit primary cooling air that building energy consumption with series and parallel FPTUs using PSC motors and operat-ing at. Johnson Controls Parallel Fan Powered Variable Air Volume terminals are available from 100 to 4100 cfm, providing flexibility in performance ranges to meet a multitude of system design requirements. IMPORTANT:Electric re-heat units ordered with SCR or SSR, route field wiring near bottom of control box. Johnson Controls Series Fan Powered Variable Air Volume terminals are available from 100 to 4600 cfm, offering tremendous flexibility to meet a wide variety of HVAC systems design requirements. Space Thermostat. 25 — 0. Closed cell. Available in several configurations, each 3000 Series isWith Nailor can provide electric heat in . customer_vlv_dual_12. Contact Hahn-Mason Air Systems today at (704)-523-5000. If the damper closes CW, turn the coupler to the CW mechanical stop limit. Air Handling Unit. Nailor Industries Inc. reserves the right to change any information concerning product or specification without notice or obligation. reseres the right to change an information concerning product or pricing without notice. VariTrane ® variable-air-volume (VAV) units lead the industry in quality and reliability and are designed to meet the specific needs of today’s applications. For 90° VAV boxes: If the damper closes CCW, turn the coupler to the CCW mechanical stop limit. Dimensions are in inches (mm). Tương tự như hệ thống CAV thông thường khi hoạt động đầy tải. They offer a range of VAV boxes for different applications and zones, such as single duct, dual duct, fan. AT35SE - 3’ Long • for Models 35SE and 35SEST. The thermostat communicates the occupant’s expectation for thermal comfort. Dual Duct units have had a renewed interest of late due to the concern for IAQ requirements and how best to meet a buildings IAQ requirements. reserves the. ed. This is energy efficient since it moves heat from the core of the building to the perimeter zones. Controllers shall include fully adjustable analog outputs and digital outputs as required utilizing a proportional plus integral control loop to control damper, electric heat and hot water coils for the purpose of. VAV Terminal Units: Bypass Terminus Units: Nailor 3400 Series Circumvent Cable Units are designed to provide variable air volume supply when use more. The company commenced operations at a small facility in Toronto, Canada manufacturing a single air control device. Features. 96 each. VAV Box Dual Maximum Control Setpoints per Standard 90. Based on the graph, we can see that the maximum airflow for a 6" VAV box is 515CFM. 3, Room Air Distribution. 978. NECC offers Variable Air Volume controls, VAV boxes, VAV terminal units and controllers from Nailor, KMC, Kreuter, Johnson Controls. Large box: Greater than 700 cfm (330 l/s). Literature. (Air Control & Air Distribution products, VAV Terminal Units, Green Products, Electric Duct Heaters), Engineered. 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. 86) galvanized steel casing, mechanically sealed, low leakage construction. D3001 - Single Duct Box • DDC Controls. Stainless Steel Heavy Duty Return Grille, ¾” Blade Spacing, 45° Deflection. Useful for electric reheat and supplemental electric duct heaters. Zip code search is only for US locations, for international provinces please select the country from the list. These units feature a low profile design, a high performance ECM motor, and a variety of options and accessories. 107. 25 — 0. 5 million cycles. . • 24 VAC Control transformer. 1940 – Robert E. Daikin VAV Controller: • VAV Cooling Only (Application 6630) • VAV Cooling or Heating (Application 6631) • VAV with Electric Reheat or Baseboard Radiation (Application 6632) • VAV with Hot Water Reheat (Application 6633) FIAT Nailor has independently tested and cataloged their dual duct sound data based upon the use of Steri-Liner (high density foil back insulation) rather than standard dual density fiberglass insulation as used in the above terminal units. November 12, 2013 Agenda VAV Box Control Sequences AHU Control Sequences • Zone Groups • DP setpoint reset • SAT setpoint reset Outdoor Air Control • Minimum outdoor air control • Demand Controlled Ventilation AutomaticFault. VAV Controls & Boxes. occupied mode . You can see it’s a pretty basic box. SimplyVAV. The 35S offers a compact and economical design well suited to the majority of applications. 33RL-SS. 63) corrosion-resistant steelC. On a rise in room temperature, the 36VRS reduces the hot airflow. velocity pressure (on the far right). Low Profile. VAV Controls & Boxes. . Page 1 of 2. Zip code search is only for US locations, for international provinces please select the country from the list. Nailor GTA stocks all the standard Diffusers, Grilles/Registers, VAV Boxes, Curtain Type Fire Dampers, Fire Stop Flaps, Access Doors, Damper Actuators and Fans to meet the most common requirements. In many VAV systems, the exterior zones will utilize fan-powered terminal units. Date: 8-2021 Supersedes: NEW 3 of 12 IOM-UNIVAVETINST UNI2-VAV ELECTRONIC THERMOSTAT True modula ng control of forced air zone dampers and. DATE B SERIES SUPERSEDES DRAWING NO. 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. The NFD-VAV core design produces a low velocity khelical”swirl” discharge air pattern. Dual Duct Terminal Units. All available with or. exterior/interior of the control enclosure box. density Steri-Liner insulation. 6200L-09x09 Aluminum Pattern Diffuser 12x12 Face. downstream ductwork and diffusers [typically 0. 5" w. DATE B SERIES SUPERSEDES DRAWING NO. V2080 - Controls Enclosure. reserves the right to change any information concerning product or pricing without notice. BROWSE BY PRODUCT. reserves the right to change any information concerning product or pricing without notice. Eliminating the low-voltage wire between the zone sensor and the terminal unit controller, and between the unit controllers and theVAV system max-min air flow. Standard Features: •22 ga. Designed for both stand-alone applications and for integration with BACnet building automation systems, EZvav are precise P+I pressure independent VAV controllers Selection of VAV terminals with a close coupled, independent silencer is a complex process with unpredictable results. 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. However, many may not know that the company had humble beginnings. Nailor Industries Inc. VAV TERMINAL UNITS Nailor Industries Inc. Because VAV systems can meet varying heating and cooling needs of different building zones, these systems are found in many commercial buildings. ACC. Send an email directly to Temperature Control Company LLC. The Series 36VR Nailor 3600 Series Retrofit Terminal Units are designed for all applications and are engineered to transform inefficient constant volume systems to present day variable air volume systems with low installation costs. . Vav Zone Controllers. Nailor offers a range of terminal units for different HVAC system integration needs, such as cooling, heating, reheat, heat/cool changeover and DOAS. Page 2 of 3 Dimensions are in inches (mm). Nailor 1220SS(-3) Stainless Steel Fire/Smoke Dampers are ideal for high humidity, mildly corrosive or, with optional Type 316 construction, more severe environment applications where building codes require both a fire damper for the protection of ductwork penetrations and also require a leakage rated damper for operational smoke control. , operating under Nailor International Group is a privately held, family owned company with Group headquarters located in Houston, TX. reserves the right to change any information concerning product or pricing without notice. Standard Features: 22 ga. reserves the right to change any information concerning product or pricing without notice. Finishes. (62 — 124 Pa)] with Nailor terminals. DATE B SERIES SUPERSEDES DRAWING NO. pressure to overcome the losses across the damper, the . From the code: C403. reserves the right to change any information concerning product or pricing without notice. Otherwise, replace the terminal with a lower pressure drop terminal and then reduce the inlet pressure. damper blade movement inside the box. UNITED STATES | CANADA | INTERNATIONAL. entry doors shall be arranged to unlock from a manual unlocking device located 40 inches to 48 inches vertical above the floor and within 4 feet an din the same plane as the secured doors. This air is controlled by a fan, that is affected by the static pressure in the system. 1 1. reserves the right to change any information concerning product or pricing without notice. The Nailor software is called SelectWorks. The Nailor product catalog is the ultimate industry resource for information. Digital VAV Controllers shall be responsible for monitoring and controlling directly connected VAV Terminals as required. IMHO, rules of thumb are only useful to trigger further analysis. Maximum height of 10. 15 Flow Probe Amplification 229 358 515 702 916 1160 1432 2062 3665 7000 2806 4 inch 5 inch 6 inch 7 inch 8 inch 9 inch 10 inch 12 inch 14 inch 16 inch 22 inch 10 100 1000 10000 0. Nailor Curtain Type Fire Dampers Type: Type A, B and C – Both Static and Dynamic Certification: UL . Airflow reported at the VAV box is actually a measure of total pressure. Nailor Industries Inc. ROOM THERMOSTAT WITH INTEGRAL TEMPERATURE. 11 - 2 - 22 3000 3 - 13 - 18 D30RW-1 Page 2 of 2. He offered a “Comparison of Room Noise Control For Series And Parallel VAV Units At Different Operating Conditions. IMPORTANT:Electric re-heat units ordered with SCR or SSR, route field wiring near bottom of control box. The associated thermostat is in the space and is. The casing design and optimized silencer geometry reduce self-generated noise and pressure drop resulting in the quietest single Nailor Industries, Inc. Brand: Nailor. AT305 - 5 Foot Long. Download the submittal sheet for more details. CTE-5100s are provided with limited and unlimited outputs. Options and Accessories: Steri-liner. A true VAV box consists of an air valve and maybe a heat source only. System Components. • Right-hand controls location is standard (shown) when looking inNailor Industries Inc. The. Series units contain a fan that is operational at the same time as the air handling unit. SINGLE DUCT TERMINAL UNIT WITH ELECTRIC REHEAT • DIGITALOR ANALOG CONTROLS PRESSURE. Nailor 3200 Series Dual Duct Terminal Units are designed to maintain optimal temperature control in the conditioned zone by varying the air volume supplied by the hot and cold supply ducts while providing proper discharge air temperature. A common problem with standard pivoted single blade damper designs is objectionable noise and loss of modulation due to pulsating and/or a snap-closing action of the valve. Dimensions are in inches (mm). 1" (25) liner. looking for constant high airflow rates. Nailor Fire Rated Diffusers are classified and listed by Underwriters Laboratory for use in UL/ULC restrained or unrestrained floor/ceiling and or roof/ceiling assemblies which incorporate an exposed grid suspended ceiling (lay-in T-Bar) with up. Blower access panel for improved field. Airflow. Nailor manufactures its own electric heating coils. This includes the load on the space, the static pressure in the ductwork, the types of terminal units, and the occupancies in the space. Nailor EZvav controllers are manufactured for a damper that rotates 90 degrees from open to close. The open mechanical stop is factory preset for 90° boxes. 2330 Main Street Columbia, SC 29201. Contact your local Nailor Representative for more information on how to order the complete Nailor catalog library. Equipment Reminder. VAV LINEAR FLOOR DIFFUSER OPTIONS UNDERFLOOR AIR DISTRIBUTION SYSTEMS VAV • COOLING ONLY • NON-DUCTED MODEL: NLD-VC Nailor Industries Inc. Perfect for retrofits or congested spaces. The software will show you the right selection based on your conditions, this includes the size of the box and the amount of heating needed. density Steri-Liner insulation. In the vertical direction, the VAV box can require up to 18", which can be a problem if above ceiling heights are relatively small. This. PEFM 4FSJFT 4 #BTJD 6OJU Quiet, Series Flow (Constant Volume). In most cases, damper actuators are sized specific to a specific model and size. 3 - 30 - 22 VAV-FDD TERMINAL UNITS LINER OPTIONS TYPE: FIBERGLASS DUAL DENSITY INSULATIONOverview. Pressure Independent VAV with Heater (Variable Air Volume Terminals) • Pressure Independent VAV Unit has one primary air inlet, one rectangular discharge outlet to the room and one rectangular bypass discharge outlet. We invest relentlessly in product development, in both differentiated niche products and standard commodity products. He is a former chair of TC 5. Nailor 6200, 6400, and 6500 Series Pattern Diffusers handle a large volume air for a given pressure drop and noise level. Nailor’s Floor "Swirl" Diffusers are designed for use in raised access floor air distribution systems, where the floor cavity is used as a pressurized supply air plenum. for VAV Terminal Units Nailor Industries Inc. Fibre Free is an engineered polymer foam insulation. Nailor Subject: Models: 35SST, 35SWST & 35SEST Fan Powered Terminal Unit with EPIC ECM or PSC Motor - Stealth and FN2 option Keywords: Fan Powered Terminal Unit with EPIC ECM or PSC Motor and FN2 option - 'Stealth' - Series Flow - Constant or Variable Volume - Models: 35SST, 35SWST & 35SEST - Unit Sizes 1 - 6 Created Date: 1/22/2014. S hort Answer (using “rules of thumb”) V Max should be approximately 2/3’s to 3/4’s of VAV box V Nom. reserves the right to change any information concerning product or pricing without notice. 6200L 09X09 Lay-In 12X12 Frame. See Product Details. Download the product catalog and find out how to select the best model for your application. VariTrane ® variable-air-volume (VAV) units lead the industry in quality and reliability and are designed to meet the specific needs of today’s applications. reserves the right to change any information concerning product or specification without notice or obligation. They have been specifically designed and tested for use with variable air volume single duct terminal units. com 2010 | Fan-Powered Terminal Units | 1 There have been several different research projects that have investigated the efficiency of series and parallel fan powered terminal unitsfan boxes at the perimeter, and single damper VAV units were the rule. 17 1/2 in. OPERATION MANUAL EPIC FAN CARD VOLUME CONTROLLER WITH (GENTEQ EON) ECM MOTOR 9/19 IOM-EPIC/ECM-EONK Page 1 of 2 REFER TO FIGURES 1, 2 & 3 AND USE THESE INSTRUCTIONS IF YOUR. 0. The air handling unit shown below is in a mechanical room. VariTrane ® variable-air-volume (VAV) units lead the industry in quality and reliability and are designed to meet the specific needs of today’s applications. Single Duct Boxes - 80 to 8,000 CFM. A wide range of models, accessories, and options are available. Previous. No heater should be applied to exceed this temperature. 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. 45° rotation, CW to close. Nailor manufactures a unique and comprehensive line of products essential for a well designed HVAC system. Single duct, parallel fan-powered, and series fan-powered units are connected to an air handling unit (AHU) that supplies the terminal units with cooled and dehumidified air. V Min should be approximately 1/3 to 1/4 of VAV box V Max. Single Duct terminals are the fundamental building blocks for Variable Air Volume (VAV) systems. Valve noise. “The sequences are necessarily complex in. 11 - 17 - 03 VAV - FF VAV TERMINAL UNITS LINER OPTIONS TYPE: FIBER - FREE Nailor Industries Inc. Step 2: Allow spare airflow capacity. The Nailor UNI VAV diffuser enables the control of airflow into a room with a connected thermostat. Nailor 3000 and 3100 Series Connecting Units are among the mostly versatile VAV boxes on the market, providing light HVAC system integration with diverse controller packs. Digital VAV Controllers shall be responsible for monitoring and controlling directly connected VAV Terminals as required. Nailor 3000 and 3100 Chain Terminal Units are among an most versatile VAV boxes over the market, pro more. Rep Locator ». Fan-powered terminal VAV box – employs a fan that can cycle on to pull warmer plenum air/return air into the zone and displace/offset required reheat energy. Medium box: 300 – 700 cfm (142 - 330 l/s) [Discharge Duct 12" x 12" (305 x 305)]. Digital VAV Controllers shall be responsible for monitoring and controlling directly connected VAV Terminals as required. Nailor D3001 14” VAV Steri-Liner-ACC Door-Enclosure. Daikin VAV Controller is capable of controlling the following VAV pressure-independent zone applications. Filter by Province. CONTROL SEQUENCE: 8EL VARIABLE AIR VOLUME • COOLING WITH PROPORTIONAL HOT WATER REHEAT The cooling/reheat thermostat features. 10 75 1/4. Nailor GTA stocks all the standard Diffusers, Grilles/Registers, VAV Boxes, Curtain Type Fire Dampers, Fire Stop Flaps, Access Doors, Damper Actuators and Fans to meet the most common. Zec510 3 Controller Multizone Unit Vav With Proportional Reheat Control Wiring Example Verasys Field Device. On a rise in room temperature, the 36VRS reduces the hot airflow. SubmittalsAir Handlers Supply, Inc. The VAV diffuser enables the control of airflow into a room with a connected thermostat. The Stealth Design has now been validated as the. 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. 5. ElEctric coils priceindustries. 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. The ductwork from the air handling unit is connected to the diffuser in the same way it connects to a standard diffuser. Page 1 of 2. - BLUE connects to LOW. 100–4100 CFM. Quiet Type with dissipative silencers and Hospital Grade boxes are also. Nailor Industries Inc. Series boxes are often used with low temperature primary systems. CURB-SEISMIC-16. During this period, a new configuration appeared in . Meets the requirements of NFPA 90A and UL 181. occupied mode . Bug fixes to existing sections. 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. A longer answer is required. read more. Series boxes perform better overall in providing comfort to occupants. VAV BOXES WITH HOT WATER REHEAT: PROVIDE THE FOLLOWING FOR ALL AIR TERMINAL UNIT BOXES. Box Information Box Type Model Number Retrofit Terminal Unit Round 36 VRR Square. NOTE: Product pictures shown represent the general type of device listed. Variable Air Volume control / VAV box factory authorized distributor, with. If the VAV damper is not a 90 degree damper, set the rotation limits to 45 or 60 degrees before mounting the controller. Be sure to check out our full catalog of VAV boxes and accessories. q Access door. For VAV boxes what you need is a SCR solid state speed controller. Analog (by Nailor). Johnson Controls. Discover the features and benefits of the EZvav digital controls for single duct VAV terminal units, a simple and precise solution for pressure independent airflow control. Nailor model 3210 is an economical dual duct terminal ideal for non-mixing variable volume applications. GENERAL INFORMATION • Nailor electric heaters require little or no maintenance. W 6" (152) 1/2" (13) H AIRFLOW CONTROLS ENCLOSURE FOR FACTORY MOUNTED CONTROLS 5 1/2" (140) 15 1/2" (394) OPTIONAL ACCESS DOOR LW SLIP AND DRIVE CONNECTION DAMPERVariTrane® Fan-Powered Terminal Units. Plenum Box: With and Without Acoustic lining the plenum Boxes can be supplied as per the requirement of the client. Steel heavy duty filter grille, 1/2" blade spacing, 38 degree deflection, blades parallel to short dimension.