Return Air Plenum

Failure to do so will. Ideally, locate the condensing unit in the shade. Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum; however, some drop-ceiling designs create a. 5 out of 5 stars 145 $51. for the aprilaire 2410 air cleaner only. I needed this for a large model I doing to post. The pressure relations in patient care areas between clean and soiled areas can not be maintained with open air return system. T … read more. Generally, a return air plenum will cost approximately $50 to $60 per unit. 20 years of experience designing HVAC systems at Airzone. Baltien you’re missing something called filter frame or filter slot. supply plenum duct plenum duct board master flow plenums & air returns 10x10 jbox 12x16 return air grille. The box is required in most cases to ensure full un. In this example, the return air pres-sure drop is high, typical of ducted return air systems, resulting in a negative pressure of 1. The warm air inside your home is drawn into the system through return ducts and then go over a refrigerant coil. The hole for the drain line and AC copper lines wasn't sealed properly and the air handler has been sucking dirty air from the garage into the system for some time now. This is a requirement of the National Electric Code. Return Plenum. Its a split unit and the house ductwork is all in the crawlspace. 0, and ANSI/SMACNA-006-2006 HVAC Duct. You have the duct connections to the plenum in addition to where the plenum attaches to the equipment. Ducted Ceiling Return, Matches PD • 3PU: Non-Ducted Ceiling Returns : Plenum Slot Diffusers • SCD: Adjustable Plenum Slot Diffuser • API: T-Bar Plenum Slot Diffuser • SLSD: Steel Linear Plenum Slot Diffuser • FD: Fixed Vane Plenum Slot Diffuser • FDB: Fixed Vane Plenum Slot Diffuser with Vertical Blow : Circular Diffusers. Find many great new & used options and get the best deals for 20 X 23. Installation Tip — First, you would cut the proper size hole into your plenum using sheet metal snips. com The new NY State Code now allows pvc piping for plumbing drainage, sprinkler piping ( some bldgs ), water piping, heating piping ( PEX ), and so many other applications, that it is difficult in many new buildings to use a ceiling plenum for return air with no combustibles present. • Factory made air ducts shall be approved for the use intended or shall conform to the requirements of the. The return plenum is on the opposite end of the HVAC duct system so it can pump used air back in. plenum upstream of any filters, exhaust air connections, outdoor air connections, or decontamination equipment. The package includes a starting collar, 2 30" duct sections, return air plenum, and 1" filter rack. You won't. The return air vent openings need to be on the opposite side of the room so the conditioned air is pulled across the room. This is always the best way because putting the heat exchanger in the return duct (where the filter is) will cause hot air to blow over. The negative pressure is created by an opening into the plenum from the return side of the rooftop unit, and perforated openings or grills in the ceiling plane admit the return air from the occupied space. T … read more. An Acoustical Return Sound Boot Designed for Ceiling Plenum Return Air Applications The noise criteria (NC) factor for return air outlets is a major concern that is often overlooked in buildings such as medical offices, schools, and executive offices where privacy is vital. Metal Zinc DFP162530-R6-1-1 - Dual Filter Return Air Plenum, R6, 16" X 25" X 30" Item: DFP162530-R6-1-1. Return air grilles (with removable core filter) Hinged return air grilles with filter. Supply Air Plenum installation costs are commonly quoted from a standard rate and can be estimated/quoted by the service professional after measurement and visual inspection at the job site. Return air plenum with Hinged eggcrate Grill Filter N 750 x 550 F 800 x 600mm. In the suspended ceiling examples, the HVAC air distribution is ducted air supply and plenum air return. You will oftentimes find air filters in the return plenum, because the air that's currently in your room is pulled in through this section of your system. The make-up air hood with BRP (Back Return Plenum) introduces the supply air thru the back of the hood and discharges into the room under the cooking equipment. Unfortunately, many designers will either completely overlook this aspect, or pay it little mind — ultimately resulting in poor system design. sku: 277F181818. Do not try this at home! HVAC training is required! https://www. Return Air should be sized at 200 square inches per ton according to AirMate and other filter grille manufacturers to achieve 2. It seams this would also be not be an energy efficient installation considering this. OL4 Plenum Air Return Series - integrated electronic and mechanical design for ceiling applications where the recessed light fixture is an integral part of the air circulation from the workspace below the ceiling up into the Plenum space above. I don't have a digital copy of the Building code to past here. A return air plenum is the ducting that is attached to a furnace for that return air to flow through, and is used as a central manifold for other return air ducting. Supply air V box, insulated supply plenum V box. HOW TO ORDER A RETURN AIR PLENUM. The plenum and cold air drops in this case were pretty big it’s why an installer used these complicated transitions. Alpinehomeair. Note that at the start of the plenum, there is an available air volume of 1,200 cfm and an available velocity of 900 ft/min. a return air plenum. When a valve closes, air outside of the valve compresses against it, created a pocket of high pressure. ALS1PLH High Plenum for 1" Slot Diffusers. It's more expensive, a quick glance at Monoprice suggests ~$85 for standard 1000' spool, $159 for plenum rated. The return plenum is a box that connects the return ducts in your ductwork back to your HVAC system. It is made from inorganic fibers that are encased in a scrim-reinforced foil, and it can withstand exposure to flames for 1-2 hours. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. A forced air system should be able to be pressure tested the way a plumber pressure tests a plumbing system for leaks. Supply air V box, insulated supply plenum V box. This is a requirement of the National Electric Code. Pressure – Air outlet pressure data is required to properly size the air delivery system within a building. filter (filters not included). air handling. ducted air returns with higher static pressures and fan horsepower in open-plenum systems. It has a critical function and that is to bring in, distribute, and remove air. plenum area. Condenser return air plenum allows for connection to space outside of the conditioning area for more efficient cooling. This pressure is reported to the high side of the pressure diaphragm. 4 Spider System 8. Savings: $599. Alternatively, we will supply a plenum box with fixing brackets to allow quick release of the plenum box for filter access. 2074 (26 GA) No. Navigating the requirements in the National Electrical Code (NEC) for ducts, plenums, and other air-handling spaces can be difficult. 1 Distributed Return. Each HVAC system typically uses two plenum boxes: a supply plenum and a return plenum. The box is required in most cases to ensure full un. There are two types of return air plenums: Ducted return air plenums and ceiling return air plenums. With some certainty the open air return system does not provide the asepsis ventilation requirements of most health care facilities licensed in the USA. Product Summary. Then duct the outside air into the return duct. A forced air system should be able to be pressure tested the way a plumber pressure tests a plumbing system for leaks. For lay-in return air usage; Construction: Polystyrene (plastic) core; Steel frame; 1/2” x 1/2” x 1/2” core design; R6 fiberglass plenum option; Uses standard 20" x 20" x 1" filter (not included) White finish; Made in the U. HVAC in-line duct silencers, louvers and double-wall plenum enclosures for outside air, exhaust air and built-up air-handling units. 5 W/Filter Rack Return Air Duct Plenum-26 Gauge, HVAC Duct Work at the best online prices at eBay! Free shipping for many products!. 5 ton Air Conditioner (TC-36B). The variation in installation costs for complex configurations (non-rectangular shape, many corners, multiple levels, etc. We also stock external weather louvres, air valves, and circular heritage outlets for a wide range of HVAC applications. I have seen this installation in commercial installations. Has anyone accomplished this?. You will oftentimes find air filters in the return plenum, because the air that’s currently in your room is pulled in through this section of your system. 4001 Mark IV Parkway Fort Worth, TX 76106 Phone: 817-336-2311 Fax: 817-625-0756. Application. The plenum is a dead air service space and does not have any ventilation going in or out of it. This reduction also improves the air flow characteristics at the branch ducts that are closest to the air-handling unit. 3) ต้องตกลงสรุปตำาแหน่ง Return Air Grill และ Return Air Chamber ให้ได้ตำาแหน่งที่แน่นอนและ ต้องไม่เปลี่ยนตำาแหน่ง ในปัจจุบัน ส่วนใหญ่การทำา Return Air Chamber. com - Our plenums and fitler boxes are used to join your new units to your existing ductwork or for new construction. Not for installation in non-neutralized special (chemical) waste systems. © 2020 Raymon Donco Air Distribution Equipment. For more information on duct cleaning or if you have questions about musty odors in your return air ducts, contact the expert staff at Air-Tro, Inc. Return-Air Plenum 171" Price : $599. A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure. Air conditioners actually pull out heat from inside your home through a host of pieces in your system and expel it outside. ALS3PLH High Plenum for 3/4" Slot Diffusers. You have the duct connections to the plenum in addition to where the plenum attaches to the equipment. Hvac Air Diffuser Uni Boot Ceiling Return Air Plenum Box , Find Complete Details about Hvac Air Diffuser Uni Boot Ceiling Return Air Plenum Box,Hvac Air Box,Air Plenum Box,Return Air Box from HVAC Systems & Parts Supplier or Manufacturer-Zhaoqing Grandaire Air Conditioning Co. A furnace return system must collect all the air being put out by that system. OL4 Plenum Air Return Series - integrated electronic and mechanical design for ceiling applications where the recessed light fixture is an integral part of the air circulation from the workspace below the ceiling up into the Plenum space above. keep the coating out of the threads, seal recesses & off the 3 gasket. Use ducted or dedicated outdoor air instead of ceiling return air plenums. Air plenums formed by gypsum boards shall not be incorporated in air-handling systems utilizing evaporative coolers 602. Product Features 1,2,3, or 4 parallel slots integrated into a coated steel housing ; 3/4", 1", 1-1/2" slot widths. Air-handling systems have the potential to convey smoke, hot gases, and flames from one area of a building into another, as well as providing air supply for a potential fire. The return air is then directed into the plenum through the grilles and travels to the nearest CRAC unit intake. combination supply/return available or supply only. The plenum and cold air drops in this case were pretty big it’s why an installer used these complicated transitions. These are the supply air plenum and the return air plenum. ing return air plenum that has been used for a few years could have substantial dust accumulation on plenum surfaces. Check the Goodman Plenum Kit - Downflow ratings before checking out. In addition, you can order both metal and plastic plenums, available with next day delivery, nationwide. Condenser return air plenum allows for connection to space outside of the conditioning area for more efficient cooling. 14" x 30" x 8" Return Air Box Plenum - Lined Item #: 19359 Mfg #: 950 14308. When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. I have done the HVAC myself and today i failed inspection. Open Spaces as Return-Air Options - Code Notes Stud cavities and floor joist spaces are often used to return air to the heating, ventilating, and air conditioning (HVAC) system#s air-handler, and are specifically allowed in the I-codes. Our site is temporarily disabled. Fill in the form below or give us a call and we'll contact you. 1171 Register Pan 6" Deep: No. All air distribution system ducts and plenums, including, but not limited to, building cavities, mechanical closets, air-handler boxes and support platforms used as ducts or plenums, shall be installed, sealed and insulated to meet the requirements of the 2010 CMC Sections 601. So if you decide to do only one return from upstairs then how about the others. 673TPI R6 — Steel Lanced Return Air Filter Grille, 1/2" Fin Spacing, Plenum Box R6 Ductboard 96AFBT — Steel Fixed Bar Return Air Filter Grille, 35-degree Deflection 96AFBTI — Steel Fixed Bar Return Air Filter Grille with R4. HVAC For the suspended ceiling and open plenum designs, HVAC, power and telecommunications are assumed to be provided from the ceiling. Do not try this at home! HVAC training is required! https://www. Your cleaning service should involve all aspects of your ductwork to maximize energy efficiency and air quality. 1 through 602. The pressure in the mixed air plenum (Plenum C) is only 0. Baltien you’re missing something called filter frame or filter slot. Return Air should be sized at 200 square inches per ton according to AirMate and other filter grille manufacturers to achieve 2. An Acoustical Return Sound Boot Designed for Ceiling Plenum Return Air Applications The noise criteria (NC) factor for return air outlets is a major concern that is often overlooked in buildings such as medical offices, schools, and executive offices where privacy is vital. However, when gas piping or tubing contains no possible leak sources and is located in a joist space being used as a return-air supply, the joist space is considered equivalent to a false ceiling space utilized. How much return air do I need for my Trane system? I have a 2 ton, 1000 CFM system. If its not an air handling plenum you might consider using smurf tube or ENT. This fresh air will enter the air circulation system of the heating system, which is separate from the combustion chamber on your furnace. September 23, 2003 CODE OF FEDERAL REGULATIONS 50 Parts 18 to 199 Revised as of October 1, 2003 Wildlife and Fisheries Containing a codification of documents of general applicability and future effect As of October 1, 2003 With Ancillaries. An air return is a vent grille that is usually located either in a hallway or in the ceiling, and its purpose is to extract air from a room and recycle it through the system to further condition it by cooling or heating. Designing the Total HVAC System, 47 Determining Heating and Cooling. multi-residential building (with non-ducted air return) is a return air plenum and consequently has to comply with the requirements of the 2014 Florida Building Code, Mechanical, Section "602. Technician "B" says that if you close down one supply register on a duct system, the volume of air feeding the other locations will increase slightly. Air is returned from the room at ceiling level (un-ducted plenum return is shown). I was told by a HVAC contractor today that I only need the 4" filter and that having both filters will put extra strain on the blower and is bad. Return air filter grilles for T-bar ceilings. The plenum and cold air drops in this case were pretty big it’s why an installer used these complicated transitions. JICURBE/8FA/14F (2) M2430V1 Vertical Plenum Heating Air Handler. Preparing for a Disaster or an Emergency Starts with a Plan National Preparedness Month is a time set aside each September to promote family and community disaster and emergency planning. ing return air plenum that has been used for a few years could have substantial dust accumulation on plenum surfaces. Return air plenum with Hinged eggcrate Grill Filter N 750 x 550 F 800 x 600mm. Sentence 9. 1 Materials within plenums. Air then flows through the blower fan, and finally down the supply plenum and from there through the supply ducts to provide cool air to the interior of the building. Return Air Plenum #34200030 - 24x30x4 Return Air Plenum. The American-Lights® UV air cleaners ship completely assembled and factory wired. Photo of Bunnara Hoy - Air Duct & Dryer Vent Cleaning - "Old Return Plenum" - Plano, TX. the intake plenum. For most types of humidifiers, it really doesn’t matter, notes Lewis. 20" X 14 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22. ) can be considerable. Description: Plenum Return Silencers are designed to fit into standard 2' x 2' ceiling grid systems. 9 m 3 /s), in the return air duct or. The removal of heat is what makes the air feel cool, not the addition of cold air. The air cleaner could be installed in the return plenum if the UV lamp is not in direct sight of air filters, louvers, etc. First, calculate the percent of outside air compared to system airflow by dividing the outside air CFM by the total supply airflow. View; List; Grid; Add to cart. Plenum Installed Duct Smoke Detectors sense air flowing through the HVAC duct and passing over the detector head. Return air plenum kit. Easy to install, the plenums are manufactured to the highest standard from lightweight ABS construction. installed in return air systems with a design capacity. Return plenum box, on the other hand, is a box that connects ducts in your HVAC system. 5 out of 5 stars 145 $51. Lennox International, inc. This is the first component of the system and is installed directly to the supply air opening of the furnace. I would suggest if it is possible to do it, to prevent sewer gas from being into the return air plenum, you need the P-trap. RC3 Return Plenum 2 x 200mm Spigot Outlet For FBQ60D Ducted Unit. Then, when the fan shuts off and the suction disappears, the top of the filter will fall backwards, thereby allowing unfiltered air into the furnace. ALS3PLIN Insulated Compact Plenum for 3/4" Slot. There are two types of return air plenums: Ducted return air plenums and ceiling return air plenums. Contact a Location Arizona Lake Havasu City, Arizona 928-846-8707 Peoria, Arizona 480-385-1380 California Anaheim, California 714-933-1777 Chatsworth, California 818-884-1100. As this high temperature/high pressure gas moves through the inside coil, the blower in the air handler blows cool inside air (cooler than the refrigerant) over the coil and the gas moving through the coil cools. 3,4 model letters CE : horizontal ceiling FCU DIGIT NO. Every Trane HVAC air handling unit (AHU) can be paired with an air conditioner or heat pump to efficiently circulate cool or warm air throughout your house during every season. 5, materials within plenums shall be noncombustible or shall have a flame spread index of not more than 25 and a smoke-developed index of. 1 Materials exposed within plenums. A plenum system is based on air pressure (supply) or vacuum (return). Use with start collar and return filter frame to provide return air flow from house to air unit. The most common application for an air-mixing plenum is the mixing of return air (or extract air) with fresh air to provide a supply air mixture for onward distribution to the building or area which the ventilation system is serving. The Environmental Protection Agency (EPA) and the National Air Duct Cleaners Association (NADCA) figure that most jobs fall within the $400 to $1,000 range. Return air Plenum - failed inspection sorry in advance for the long post, but i need some advice I am building an addition on my house here in FL. If the return duct is too small, there are an inadequate number of return grilles or they are undersized, it can’t return enough air to recirculate back into the system. If the furnace is putting out 1,000 cubic feet per minute of air flow, the return system must collect 1,000 cubic feet and take it back to the unit. You also have to figure out how to connect the new ducting to the return plenum in the basement which may not be easy due to space limitation to even get your hands and tools in there. Home | Gray Metal. I needed this for a large model I doing to post. I assume a solution to this could also be used for an under floor supply plenum. 1 Materials within plenums. Condenser return air plenum allows for connection to space outside of the conditioning area for more efficient cooling. Begin the test by remov-ing the coil wire from the distrib-utor and securely ground it to prevent the engine from starting. An open-air return permits air to cycle into the plenum, but it also allows sound and conversations to pass with it. In building construction, the plenum (pronounced PLEH-nuhm) is the space that is used for air circulation in heating and air conditioning systems, typically between the structural ceiling and the suspended ceiling or under a raised floor. One function of the plenum is to equalise pressure for more even distribution, because of irregular supply or demand. Hamilton 20. The air transferred from the return air stream to the supply air stream is termed recirculated air. Super Seal Start Collars from The Duct Shop are the fastest and easiest way to start a new round duct run off the side or end of your supply or return plenum. Measure the width of the unit (horizontal) at the place of RAP attachment. Failure to do so will. A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure. View; List; Grid; Add to cart. Savings: $599. 5 Radial System. 5 out of 5 stars 145 $51. here is what iv built. 5-in x 28-in Return Air Box Assembly Duct Plenum. Thanks! John Bunzick, CCS, CCCA, LEED AP Senior Member Username: bunzick Post Number: 1103 Registered: 03-2002. (311 Pa) in Plenum B. Even return plenums built under a stairway or in a closet, for example, should be avoided if a completely ducted system is possible. § The purpose of this Plenum is to create an equal flow and pressure across the filter (which is sized according to the cooling capacity of the air conditioning system). 1 Materials within plenums" which includes the closet door, even if louvered, in order. Consult the ceiling panel manufacturer for information on. 00: Cost can add up quickly, especially if you're a novice and have never attempted a Return Air Plenums installation before. Picture a gas furnace or air handler and the attached duct system in your mind. The International Code Council (ICC) is a non-profit organization dedicated to developing model codes and standards used in the design, build and compliance process. Forced-air systems also have return ducts that connect to the HVAC equipment through an air-collection box known as a return plenum. I would suggest if it is possible to do it, to prevent sewer gas from being into the return air plenum, you need the P-trap. Add to wishlist. Return air plenum kit. The variation in installation costs for complex configurations (non-rectangular shape, many corners, multiple levels, etc. The dust “challenge” for both are particles drawn from the conditioned space and the source strength of these particles is the same whether. Re: return air plenum with floor trusses I have encountered this situation on several occasions in buildings that were being "historically restored", and were going to receive plaques of restoration. 585-482-6698 office fax. 1171 Register Pan 6" Deep: No. php?id=100009858663026 Check out Mike Powlas's HVAC channel https://www. The return-air damper will be closed, so controlling the return fan from mixed-air-plenum pressure no longer has feedback, meaning changes in return-fan speed will not change mixed-air-plenum pressure. CMP14 - Plenum for 14 1/2″ Winchester Evaporator Coils $ 80. The inlet air temp sender will delay a bit to change the temp reading resulting in an a lumpy idle until it does. Hamilton 20. and appliances. Left: A return plenum formed by. This plenum or drop is usually attached to the side of the furnace or appliance with a filter rack and filter. filter or a 4 in. The term plenum, could be a large section of ductwork, or the upper space above a ceiling. Minimum Cost of Return Air Plenums: $50. Its a split unit and the house ductwork is all in the crawlspace. • Static Pressure – The outward force of air within a duct, measured in inches of water column. In the mean time I would sue air filters that have UV lights just in case. The sheet metal return plenum on one of our 2 otherwise identical gas furnaces gives out a loud "bang" as the duct contracts inwards when the blower starts and again when the duct returns to its original conformation when the blower stops. Flame spread and smoke development requirements are generally irrelevant to pipes outside a return air plenum. A forced air system should be able to be pressure tested the way a plumber pressure tests a plumbing system for leaks. Installation Tip — First, you would cut the proper size hole into your plenum using sheet metal snips. After the air is conditioned, a blower or air handler blows the air through supply ductwork, which delivers it to rooms throughout your house, where it emerges from registers and vents. I am getting a 21 degree temperature difference between my supply air plenum and return air in my home central A/C system. The plenum and cold air drops in this case were pretty big it’s why an installer used these complicated transitions. combination supply/return available or supply only. Baker Distributing is the preferred choice in HVAC, Refrigeration & Foodservice equipment, parts and supplies distribution. Add to wishlist. CMP17 - Plenum for 17 1/2″ Winchester Evaporator Coils $ 92. Is that ok or is it to high. We also stock external weather louvres, air valves, and circular heritage outlets for a wide range of HVAC applications. The return air plenum must be air sealed so that the only air that enters the plenum is air coming from the house through the filter-backed grille. Many contractors have questions about the proper installation of humidifiers. If the return duct is too small, there are an inadequate number of return grilles or they are undersized, it can’t return enough air to recirculate back into the system. This fresh air will enter the air circulation system of the heating system, which is separate from the combustion chamber on your furnace. difficult to design them so as to ensure good air distribution. ” They also reference, “the space over a hung ceiling used for environmental air-handling purposes,” and, “areas beneath raised floors for information technology equipment,” as. Not for installation in non-neutralized special (chemical) waste systems. ” They also reference, “the space over a hung ceiling used for environmental air-handling purposes,” and, “areas beneath raised floors for information technology equipment,” as. txt) or read online for free. Its a good product for low voltage as the wires pull easily through it. Item #523684 Model #RAB17RAB17. Selecting the Right System, 21 Extended Plenum Systems, 21 Radial Systems, 33 Reducing Trunk Systems, 40 Gravity Systems. You also have to figure out how to connect the new ducting to the return plenum in the basement which may not be easy due to space limitation to even get your hands and tools in there. 4" start collar price of $3. return air frame return air/support box n7. When the concentration of smoke particles suspended in the air stream reach the detector head alarm threshold, the smoke detector will go into the alarm mode. 5, materials within plenums shall be noncombustible or shall have a flame spread index of not more than 25 and a smoke-developed index of. Because the product is a single unit device, it is easy to compare prices between brands. Air Intakes and Outlets - Ventilation systems - air intakes and outlets - rules of thumbs. If a residential unit, the supply plenum is commonly the same dimensions as the unit outlet, and can be as tall or long as required The plenum serves a few different purposes. Has anyone accomplished this?. The package includes a starting collar, 2 30" duct sections, return air plenum, and 1" filter rack. The large airflow paths mean negligible pressure drops compared to a ducted supply and/or return system. This is just one of many ways to form a return air box or plenum for an electric air handler to sit upon. Do not try this at home! HVAC training is required! https://www. The removal of heat is what makes the air feel cool, not the addition of cold air. Need any help with your purchase? Get in touch with Greenmill AC today: Freephone 0800 2795 999. Form a sealed air barrier of drywall or rigid duct board (sealed on the foil side whether facing in or out) and return air grille(s). An Acoustical Return Sound Boot Designed for Ceiling Plenum Return Air Applications The noise criteria (NC) factor for return air outlets is a major concern that is often overlooked in buildings such as medical offices, schools, and executive offices where privacy is vital. The pressure in the mixed air plenum (Plenum C) is only 0. The 50% rule is demonstrated in Figure 5 on the next page. Global Industrial is a Leading Distributor of HVAC/R & Fans supplies. Ventilation - Systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more; Related Documents. 5 out of 5 stars 18 $26. yes, it is meant to be there, and yes you should put it back neatly when done. The plenum is lined with R-6 duct liner to eliminate the need for wrapping. I would suggest if it is possible to do it, to prevent sewer gas from being into the return air plenum, you need the P-trap. A return air plenum is the ducting that is attached to a furnace for that return air to flow through, and is used as a central manifold for other return air ducting. filter (filters not included). Many contractors have questions about the proper installation of humidifiers. Positioned directly above return grilles, the RAC prevents the transfer of occupant noise into the plenum above and prevents mechanical noise in the plenum from flanking through return grilles, or open vents. Hamilton 20. 4 Spider System 8. Without return air ducting, as in your basement, much of this cool air may not be drawn back to the furnace, resulting in stale or damp air in that area of the home. for the aprilaire 2410 air cleaner only. A forced air system should be able to be pressure tested the way a plumber pressure tests a plumbing system for leaks. Metal Zinc DFP162530-R6-1-1 - Dual Filter Return Air Plenum, R6, 16" X 25" X 30" Item: DFP162530-R6-1-1. ) can be considerable. plenum area. supply plenum duct plenum duct board master flow plenums & air returns 10x10 jbox 12x16 return air grille. ) can be considerable. It allows the user to install a 1 in. An Acoustical Return Sound Boot Designed for Ceiling Plenum Return Air Applications The noise criteria (NC) factor for return air outlets is a major concern that is often overlooked in buildings such as medical offices, schools, and executive offices where privacy is vital. Hello Baltien and welcome to the How-to-Community. To select an appropriate plenum size, firstly establish the static pressure loss of the diffuser at the required design duty from the appropriate performance table. Return plenum box, on the other hand, is a box that connects ducts in your HVAC system. Baker Distributing is the preferred choice in HVAC, Refrigeration & Foodservice equipment, parts and supplies distribution. We also stock external weather louvres, air valves, and circular heritage outlets for a wide range of HVAC applications. 14" x 30" x 8" Return Air Box Plenum - Lined Item #: 19359 Mfg #: 950 14308. This produces an overall floor-to-ceiling air flow pattern that takes advantage of the natural buoyancy produced by heat sources in the office and more efficiently removes heat loads and contaminants from the space, particularly for cooling applications. Add to cart. Item #523684 Model #RAB17RAB17. Form a sealed air barrier of drywall or rigid duct board (sealed on the foil side whether facing in or out) and return air grille(s). A few features of the lab include supply, return, and outside sound testing at actual load conditions, testing of up to a 300 ton air conditioning system, testing of up to a 540 ton chiller system, and. One function of the plenum is to equalise pressure for more even distribution, because of irregular supply or demand. For availability in your area Help Center Return/Exchange Policies Employee Registration. 00 + shipping. Lengths (4MHP8)? Grainger's got your back. Air grilles are made from stamped steel with a white finis. • Static Pressure – The outward force of air within a duct, measured in inches of water column. As this high temperature/high pressure gas moves through the inside coil, the blower in the air handler blows cool inside air (cooler than the refrigerant) over the coil and the gas moving through the coil cools. ensure good air distribution. You will oftentimes find air filters in the return plenum, because the air that's currently in your room is pulled in through this section of your system. A furnace return system must collect all the air being put out by that system. The duct work is in the attic. RC3 Return Plenum 2 x 200mm Spigot Outlet For FBQ60D Ducted Unit. They are designed to be used with multiple different brands and can be customized for your ductwork needs. 1 Materials exposed within plenums. Supply Air Plenum installation costs are commonly quoted from a standard rate and can be estimated/quoted by the service professional after measurement and visual inspection at the job site. An air return is a vent grille that is usually located either in a hallway or in the ceiling, and its purpose is to extract air from a room and recycle it through the system to further condition it by cooling or heating. Flame spread and smoke development requirements are generally irrelevant to pipes outside a return air plenum. 20" X 14 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22. The cost of return air plenums fluctuates based on the individual manufacturer. An HVAC plenum is a square or rectangular box that connects the furnace or air handler on one side to the duct-work that carries conditioned air throughout a structure on the other. I am getting a 21 degree temperature difference between my supply air plenum and return air in my home central A/C system. Return Air Box 20" x 20" Sherer Metal Manufacturing. Application. Adaptable to hard surfaces using mounting frame. 1-2009 standard. • Factory made air ducts shall be approved for the use intended or shall conform to the requirements of the. SHEET METAL Sheet metal is the most common duct material and can be used on most all supply and return duct applications (for plenums,. Air Filter Housings for Home. 14" x 30" x 8" Return Air Box Plenum - Lined Item #: 19359 Mfg #: 950 14308. Your cleaning service should involve all aspects of your ductwork to maximize energy efficiency and air quality. The negative pressure is created by an opening into the plenum from the return side of the rooftop unit, and perforated openings or grills in the ceiling plane admit the return air from the occupied space. Get a Trade Access Login. Return Air Boxes/Plenums Top Entry (Height = 150mm) PRODUCT CODE PERIMETER_RANGE 5mm/ 10mm RUBBER INSULATION 13mm/25mm POLYESTER INSULATION 13mm/25mm FIBERGLASS. To supply this air to the furnace. Return air box is a plenum for attaching return duct to return grille in ceiling or floor. combination supply/return available or supply only. Louis Hearn. These vents are seen in many types of furnace systems, although there are alternatives, such as drawing air from the outside or from the area around the furnace. Silencers are constructed with a 22GA galvanized steel outer casing and 22GA perforated galvanized steel baffles filled with inorganic glass fiber. The air has to have some way to return to the HVAC equipment, and that’s where return air ducts and vents enter the picture. But what about return air flow? I currently have only ONE return in the living room of my house and want to install high/low returns in 6 rooms. Return Air (96) Universal (24) Supply (19) No matching search result. The pressure in the mixed air plenum (Plenum C) is only 0. By cutting a hole in the return air plenum right near the furnace, you may collect some of this cool air from the basement, but not from the right location. Condenser return air plenum allows for connection to space outside of the conditioning area for more efficient cooling. We also stock external weather louvres, air valves, and circular heritage outlets for a wide range of HVAC applications. Our Products > Return Air Plenums You will need Trade Access to see prices. the 100% outdoor air mode. Does your data center’s hot air return to the CRACs and CRAHs via your ceiling plenum (above the ceiling tiles)? Return Air Plenum Cleaning. The American-Lights® UV air cleaners ship completely assembled and factory wired. But return air ducts could have a similar or even thicker layer of dust. Designing the Total HVAC System, 47 Determining Heating and Cooling. Air is drawn in through the return grill, up the wall cavity and into the return duct. I'll do the machining and return it to you. Global Industrial is a Leading Distributor of HVAC/R & Fans supplies. 🌐 Air conditioner Installation / Repair 🔥 Heater Installation / Repair 💦 Water Heater Repair ♻️ Fireplace Installation / Repair 💸 Prices 🏴󠁺󠁡󠁦󠁳󠁿 Coupons 📷 Blog 🔊 Useful tips 🔨 Our Repairs About FUSE 🌇 Service Area 👓Franchise Fuse 👨🏻‍🔧 Career 📋 Customers’ Reviews 📈 Why Us: 100. Savings: $599. Flame spread and smoke development requirements are generally irrelevant to pipes outside a return air plenum. 7 Rules of Duct Design (ACCA Manual D – Residential Duct Systems) 9. A Ventilation Contractor or Sheet Metal Mechanic will size the return air plenum and filter to match the required airflow of the furnace or. For availability in your area Help Center Return/Exchange Policies Employee Registration. as, “a compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system. Looking for SPACEPAK Plenum Duct, Square Fiberboard, 4 Ft. Installation Tip — First, you would cut the proper size hole into your plenum using sheet metal snips. Return air Plenum - failed inspection sorry in advance for the long post, but i need some advice I am building an addition on my house here in FL. Plenum extension luckily was the same size and in order to adapt air cleaner casing instead of cold air boot the installer used a piece of 24 x 8 duct. The supply plenum is connected to your HVAC supply outlet. Plenum Installed Duct Smoke Detectors sense air flowing through the HVAC duct and passing over the detector head. Filter frame is the sheet metal profile that is normally placed in between the unit and the return duct (plenum). A few features of the lab include supply, return, and outside sound testing at actual load conditions, testing of up to a 300 ton air conditioning system, testing of up to a 540 ton chiller system, and. ceiling plenum jobs have been around for years. It allows the user to install a 1 in. ducted air returns with higher static pressures and fan horsepower in open-plenum systems. I inspected a house where the condensate line for the HVAC system was discharging into the open top of a trapped sewer line that was located inside the return air plenum. The package includes a starting collar, 2 30" duct sections, return air plenum, and 1" filter rack. Easy to install, the plenums are manufactured to the highest standard from lightweight ABS construction. The use of the corridor as part of the supply, return or exhaust air system was explicitly restricted in hospitals in the 2009 edition of the standard and the modifications proposed. What you are describing (I think) is a return air trunk duct,(main). Space between the structural ceiling and the dropped ceiling or under a raised floor is typically considered plenum; however, some drop-ceiling designs create a. Your order will also include Alpine's exclusive free instructional video on DVD! Watch as a pro quickly assembles the return air plenum, and shows you how to do the same. Installing A/C in confined space, with the air handler sitting on the return plenum I only have enough room for my main trunk to sit right on top of the air handler, no head space for supply plenum. If you need a specific gauge, please call to place your order. The package includes a starting collar, 2 30" duct sections, return air plenum, and 1" filter rack. If the return duct is too small, there are an inadequate number of return grilles or they are undersized, it can’t return enough air to recirculate back into the system. It has a critical function and that is to bring in, distribute, and remove air. Return air plenums are a different story. If its not an air handling plenum you might consider using smurf tube or ENT. 2 Molded Insulated Back. Unfortunately, many designers will either completely overlook this aspect, or pay it little mind — ultimately resulting in poor system design. Page 14 PRODUCT DESIGN Counterflow Filters This furnace has provisions for the installation of return air filters at the counterflow top return. Each HVAC system typically uses two plenum boxes: a supply plenum and a return plenum. Return Air should be sized at 200 square inches per ton according to AirMate and other filter grille manufacturers to achieve 2. Return air Plenum - failed inspection sorry in advance for the long post, but i need some advice I am building an addition on my house here in FL. 1-2009 standard. Daikin Air Conditioning UK. Return Air Plenum. A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure. These return air grilles feature 27° down deflection with a turnback frame and countersunk screws. View: Page1; of 3; Add Selections to Cart. Since the return and supply sides of the unit are on opposite sides of the blower fan, the air pressure will be lower on the return side and higher on the supply side. You will oftentimes find air filters in the return plenum, because the air that's currently in your room is pulled in through this section of your system. 3 Reducing Trunk System. 4 Spider System 8. Plenum spaces are also utilized for managing telephone and network communication cables that are run from one location to another. Plenum Return Air Environmental Air Space Air Handler Only plenum-rated products, cables, and raceways are permitted within environmental air spaces. The pressure relations in patient care areas between clean and soiled areas can not be maintained with open air return system. As freshly conditioned air is blown out of the room supply. • To insure proper distribution of air, volume dampers must be used for all branch runs. (the larger line) and toward the inside coil (the finned-tube coil located in the supply plenum of the air handler/plenum assembly). Plenums are typically only allowed to serve a single fire area, so the “draft stopping” would be from fire wall to fire wall (if they exist) Treatments of wood studs within a return air plenum would have to be approved by the AHJ and meet the 25/50 Flame/Smoke Development rating when tested in accordance with ASTM E 84. Simple enough and a fairly normal HVAC system design. Form a sealed air barrier of drywall or rigid duct board (sealed on the foil side whether facing in or out) and return air grille(s). I assume a solution to this could also be used for an under floor supply plenum. In an effort to meet IMC 602. Not for installation in non-neutralized special (chemical) waste systems. Except as required by Sections 602. If you need a specific gauge, please call to place your order. The plenum is a dead air service space and does not have any ventilation going in or out of it. If the furnace is decommissioned and removed then I would think running through the duct wouldn't be a problem. Dual Filter Plenum Kit is an air return plenum. DRAT180240 920 x 355 - 2 x 400 Daikin. ALS3PL Compact Plenum for 3/4" Slot Diffusers. I’ve seen combustion air ducts connected directly to return plenums on conventional forced air furnaces many times. ActivePure ® is the only air cleaning technology awarded the prestigious Certified Space Technology seal by the Space Foundation. While none of these spaces makes an acceptable air pathway on its own, some building cavities, such as floor joists, can make acceptable duct chases to contain an insulated, air-sealed, metal, or flex supply. Air Filter Housings for Home. Return Air Filter Grille Pressure. A plenum in heating, ventilation, and air conditioning (HVAC) systems is a box that connects to the HVAC system. Cruisair Air Conditioning: Webasto Marine Cooling: Grilles and Ducting: Aluminum Return Air Grilles: Aluminum Supply Grilles: Wood Return Air Grilles: Wood Supply Grilles: Wedge Style Supply Grilles: Plastic Grilles: Round Plastic Grilles: Plastic Ducting Parts: REAL Ventilators & Plenum Boxes: Galvanized HVAC Ducting Parts: Insulated Supply. As freshly conditioned air is blown out of the room supply. I also have a regular 1" filter downstairs at the return air intake. I have done the HVAC myself and today i failed inspection. You will oftentimes find air filters in the return plenum, because the air that's currently in your room is pulled in through this section of your system. Then, when the fan shuts off and the suction disappears, the top of the filter will fall backwards, thereby allowing unfiltered air into the furnace. This enables the plenum to operate at a high volumetric efficiency when equalizing air flow to the engine cylinders. Our variable speed motors help homeowners evenly cool and heat every corner of your home with cleaner, more comfortable air. Failure to do so will. Plenums & Return Air. Consult the ceiling panel manufacturer for information on. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. Return Air Filter Grille Pressure. The return air stream, which is also an input in terms of mass and energy. Air plenums formed by gypsum boards shall not be incorporated in air-handling systems utilizing evaporative coolers 602. The Environmental Protection Agency (EPA) and the National Air Duct Cleaners Association (NADCA) figure that most jobs fall within the $400 to $1,000 range. ALS3PLH High Plenum for 3/4" Slot Diffusers. com/profile. The other furnace that doesn't "bang" seems to have a. The instructions for my Goodman GMP125-4 furnace address this on page 9:. If the furnace is decommissioned and removed then I would think running through the duct wouldn't be a problem. 1 Distributed Return. Return Plenum. The valve may be installed on sewer ejectors or in supply and return air plenums, if installed according to engineer design and prior local code approval. Air-handling systems have the potential to convey smoke, hot gases, and flames from one area of a building into another, as well as providing air supply for a potential fire. CMP14 - Plenum for 14 1/2″ Winchester Evaporator Coils $ 80. TRUaire 4040FG/4050FG Series T-Bar Return Air Filter Grilles - Egg Crate Face. 6 Perimeter Loop System. Cable that is run in the plenum spaces of buildings. Openings up to 12 inches in diameter are sealed with three metal screws, while openings larger than 12 inches in diameter require five screws for solid connections. Install the conditioned air plenum, ducts and air filters (if not provided on the furnace) in accordance with NFPA 90B Standard for the Installation of Warm Air Heating and Air-Conditioning Systems (latest edition). ” They also reference, “the space over a hung ceiling used for environmental air-handling purposes,” and, “areas beneath raised floors for information technology equipment,” as. 1 through 602. 1,2 product series 42 : fan coil unit DIGIT NO. The term plenum, could be a large section of ductwork, or the upper space above a ceiling. air, heat, and moisture movement. Preparing for a Disaster or an Emergency Starts with a Plan National Preparedness Month is a time set aside each September to promote family and community disaster and emergency planning. the return plenum box is built from a single piece of 1 1/2 duct board, sealed at all joints with metal backed tape. These products include mini power amplifiers and many IP Link ® products. sku: 277F181818. We endeavour to answer all enquiries within 24 hours on business days. 5 ton Air Conditioner (TC-36B). Return plenum box, on the other hand, is a box that connects ducts in your HVAC system. Generally, a return air plenum will cost approximately $50 to $60 per unit. So if you decide to do only one return from upstairs then how about the others. Return Air Silencer (RAS) Overview The compact design of the Return Air Silencer (RAS) provides an innovative solution for reducing plenum noise entering occupied spaces through return air openings and mechanical equipment noise transmission through transfer grilles. These include system sizing (Manuals J, D, and S), sealed return plenums, air handler closet clearances, duct assembly. Return Air (96) Universal (24) Supply (19) No matching search result. As freshly conditioned air is blown out of the room supply. Hamilton 20. Air Filter Housings for Home. 72 Solution for the Perimeter Zone: Use underfloor variable speed fan terminal with heating coil to provide variable flow of cool or hot air. 14" x 30" x 8" Return Air Box Plenum - Lined Item #: 19359 Mfg #: 950 14308. Width Height Depth; ACP1 : EVAP PLENUM 780X780X170 : 780mm : 780mm : 170mm. In the suspended ceiling examples, the HVAC air distribution is ducted air supply and plenum air return. There are probably other issues I have not thought of too. Have the TB powder coated but make sure they. I'll do the machining and return it to you. But return air ducts could have a similar or even thicker layer of dust. As freshly conditioned air is blown out of the room supply. SECTION 602 PLENUMS 602. Buy Daikin Return Air Plenum Uk. The path for return air is one of the most important aspects to consider when designing a low pressure supply air plenum system. The space above a ceiling, when used as a return air path, is a ceiling return air plenum. 1074 (30 GA) Return Air Can 4" Deep No. What you are describing (I think) is a return air trunk duct,(main). The switch is a 24 volt operator that will make a circuit to close the damper on a fall in pressure or make a circuit to open the damper on a rise in pressure. Any large space designated for any type of air flow or routing of systems, can be called a plenum. A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure. Return Air (96) Universal (24) Supply (19) No matching search result. combination supply/return available or supply only. Open Spaces as Return-Air Options - Code Notes Stud cavities and floor joist spaces are often used to return air to the heating, ventilating, and air conditioning (HVAC) system#s air-handler, and are specifically allowed in the I-codes. Some units have a supply AND a return sitting on the top of the unit. Alternatively, we will supply a plenum box with fixing brackets to allow quick release of the plenum box for filter access. Just curious of other’s views on this installation. HOW TO ORDER A RETURN AIR PLENUM. Hello Baltien and welcome to the How-to-Community. Our site is temporarily disabled. 25 ESP) fan coil that comes with a coil, blower/motor assembly with quick-connect plug and a galvanized steel, powder-coated epoxy drain pan covered with ⅛-inch thick insulation. I took the cover off and looked below the evaporator coil and as i suspected there was no ductboard or insulation of any kind on the inside of the plenum either. I didn’t find anything. Item #523684 Model #RAB17RAB17. The box is required in most cases to ensure full un. SHEET METAL DUCTS Sheet metal is the most common duct material and can be used on most all supply and return duct applications (for plenums, trunks, branches, and runouts). The supply plenum is connected to your HVAC supply outlet. The cost of return air plenums fluctuates based on the individual manufacturer. Do you have a return air plenum or is the unit on the floor with a side return duct. The air stream surface of Quiet Liner is overlaid with a durable, fire-resistant black facing providing additional strength to the product. The 30-day return policy and 1-year warranty should help you rest at ease, just as much as the purified air you are breathing after install. unconditioned air is pulled into the return plenum. These are the supply air plenum and the return air plenum. Each HVAC system typically uses two plenum boxes: a supply plenum and a return plenum. Need any help with your purchase? Get in touch with Greenmill AC today: Freephone 0800 2795 999. • The chart is based on metal duct. 5 Radial System. Metal Zinc DFP162530-R6-1-1 - Dual Filter Return Air Plenum, R6, 16" X 25" X 30" Item: DFP162530-R6-1-1. for the aprilaire 2410 air cleaner only. The Return Air Duct should have an unobstructed 6. and appliances. In addition, we offer take-offs, elbows, round duct pipe, and register boots that can be connected to the starting ductwork and run to each room. WARNING - DANGER: Using the basement as a return air plenum would create a low pressure around the furnace, potentially affecting combustion venting and mixing combustion products including deadly CO with the return air. Add to wishlist. Fill in the form below or give us a call and we'll contact you. Then duct the outside air into the return duct. A plenum space is a part of a building that can facilitate air circulation for heating and air conditioning systems, by providing pathways for either heated/conditioned or return airflows, usually at greater than atmospheric pressure. Qty: * Terms and Conditions About Us Help. Add to wishlist. The variation in installation costs for complex configurations (non-rectangular shape, many corners, multiple levels, etc. RC3 Return Plenum 2 x 200mm Spigot Outlet For FBQ60D Ducted Unit. Ceiling plenum return unit; Identical match for Model SCD supply diffusers ; Integrates with inverted T-bar and 9/16" narrow slot grid systems. We offer the starting ductwork for furnaces and air handlers, called Supply Air Plenums and Return Air Plenums. (2) If a concealed space referred to in Sentence (1) is used as a return-air plenum and incorporates a ceiling membrane that forms part of the required fire-resistance rating of the assembly, every opening through the membrane shall be protected by a fire stop flap that shall, (a) stop the flow of air into the concealed space in the event of a. The plenum spaces are those that lie between a drop and standard ceiling (or a similar version in the floor space) and it is this section where the air in a building circulates, thus aiding in heating and cooling functions. Left: A return plenum formed by. A Ventilation Contractor or Sheet Metal Mechanic will size the return air plenum and filter to match the required airflow of the furnace or. Measure the width of the unit (horizontal) at the place of RAP attachment. When the concentration of smoke particles suspended in the air stream reach the detector head alarm threshold, the smoke detector will go into the alarm mode. But return air ducts could have a similar or even thicker layer of dust. Return Plenum. This is just one of many ways to form a return air box or plenum for an electric air handler to sit upon. Acrylic or aluminum egg crate face (cube core). To supply this air to the furnace. Does anybody. com - Our plenums and fitler boxes are used to join your new units to your existing ductwork or for new construction. FAN WALL air handlers can be designed to fit in a space that would be impossible for any other air handling unit. The cost of return air plenums fluctuates based on the individual manufacturer. Savings: $599. This plenum or drop is usually attached to the side of the furnace or appliance with a filter rack and filter. Easy online ordering for the ones who get it done along with 24/7 customer service, free technical support & more. I would suggest if it is possible to do it, to prevent sewer gas from being into the return air plenum, you need the P-trap. While none of these spaces makes an acceptable air pathway on its own, some building cavities, such as floor joists, can make acceptable duct chases to contain an insulated, air-sealed, metal, or flex supply. Sidewall return air grilles include two grille bars to an inch. By cutting a hole in the return air plenum right near the furnace, you may collect some of this cool air from the basement, but not from the right location. SDS Coil Plenum Box - 655 x 470 x 625mm with 470 x 185mm Extra Opening, Drip Tray & Cover Plate (Horizontal Install Only) to suit HEZ100: 508090923011: SDS Coil Plenum Box - 470 x 485 x 650mm with Drip Tray, Cover Plate & Coil Holder (Vertical Install Only) to suit HEZ100: 508090933011. Return Air Plenum installation costs are commonly quoted from a standard rate and can be estimated/quoted by the service professional after measurement and visual inspection at the job site. 585-482-3601 main. difficult to design them so as to ensure good air distribution. Bottom section painted off white. sku: 277F181818. cold air return boot designed. Related Topics. Left: A return plenum formed by. Navigating the requirements in the National Electrical Code (NEC) for ducts, plenums, and other air-handling spaces can be difficult. Our Products > Return Air Plenums You will need Trade Access to see prices. Typical Heat Exchanger that is installed in the supply plenum or ductwork (the one that goes to the vents in the different rooms). Builders don’t accept leaky plumbing systems, so they should not accept leaky duct systems. 5-in x 28-in Return Air Box Assembly Duct Plenum. Air return and supply are both via large plenum chambers, under the floor and above the ceiling. The dust "challenge" for both are particles drawn from the conditioned space and the source strength of these particles is the same whether. [email protected] October 27th, 2015.