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vent systemHealthyClimate® Ventilation Control System An easy,efficient way to freshen the air in your home. A "breath of fresh sir”doesn't have to be just a nice expression.It's something you can experience every day with the Healthy Climate®Ventilation Control System.This innovative solution provides, proper ventilation -one of the most effective ways to improve the air quality inside your home. Compatible with any forced-air system,the Ventilation Control System connects to an outside wall to allow the right amount of fresh air to enter your home.The results improved comfort,air quality and ‘efficiency —in a word,refreshing 4 balanced indoor climate you don't even have to think about Greater flexibility and peace of mind ‘The system's electronic controller monitors Easy-to-use controls allow you to manage the ‘outdoor temperatures and indoor humiaity amount of fresh air inside your home based on levels,automatically adjusting fresh air as your individual preferences,giving you increased needed to ensure the proper balance inside ‘comfort and control.And since the Ventilation your home.A timer manages the quantity of air ‘Control System comes with a 2-year limited entering yourhome forimproved efficiency and __warranty*,you're ensured fresh,cleaner*indoor lower energy costs.air for years to come. Healthy Climate’1 System |Features:[How it helps |[Motorized Damper [Wels a abe suiorwtcaly |Help teop tha a rade [esnmecs to outs wa [along orshting of fesh at you home fresh,deaer od es neeed eemfonables= Managesthe iat fe|Hops contol anonym |een youre prong | [eno on wher you noe [ecroric Consler [Helps manoge indor a quliy |Salncastarpaare wa leyeaponing to cutdoor uml for proved oarlenperstresardindoororlandoquaynclle|User Controls llows you to manage air |Offers greater flexbility and charge nd craton ted leondor |len “Pople 1 rier pears ay Sor aul waranty cae fr de~Otpening en he aio sly PRODUCT SPECIFICATIONS OVERVIEW ‘Whole-house ventilation for improved indoor air quality and comfort. ‘Automatic monitoring of outdoor temperature and indoor relative humidity. Compatible with any forced air HVAC system. Digital Ventilation Controller is installed in the return duct of a forced air HVAC system. Meets ASHRAE 62.2-2010 Standard for Ventilation. ‘Working in conjunction with the supplied damper,the Digital Ventilation Controller determines when and how long fo ventilate.This is done through continuous monitoring of indoor relative humidity,outdoor ‘temperature,and user-adjusted timer settings. Indoor relative humidity is monitored to help prevent high humidity conditions inside the house.The Digital ‘Ventilation Controller will nt open the damper to the outside air If there is a chance of raising the humidity inside the house to high levels. Invery cold climates,balanced ventilation is recommended.LVCS can be used with an exhaust fan to provide balanced ventilation.Per ASHRAE 62.2- 2010,very cold climates are those that have more than ‘900 annual heating degree-days based on 65°F day. WARRANTY ‘All Covered Components -Five year limited warranty in residential applications. Refer to Lennox Equipment Limited Warranty certificate included with unit for specific details. MODE SELECTION The Digital Ventilation Controller operates in one of four available modes. Modes are selected by the installer inside the Digital Ventilation Controller by means of a 4-way rotary DIP switch. Mode A:Timer Controlled Ventilation (no temperature or humidity limits) Used for time-based ventilating regardless of temperature or humidity. ‘This mode may be required by local codes. INDOOR AIR QUALITY LvVCS HEALTHY CLIMATE? Lennox Ventilation Control System Bulletin No.210406 ‘pil 2016 spereedes May 2013 NOTE These modes below utilize the Outdoor Temperature Sensor (furnished)to increase comfort and reduce energy costs by preventing extreme hot,cold or humid air from being used to ventilate the house. The Digital Ventilation Controller prevents ventilation ‘operation when indoor relative humiclty is above 55% and the outside temperature is above 50°F to prevent ‘excess indoor humicity levels. Mode B:Timer Controlled Ventilation (with temperature and humidity limits) Uses outdoor temperature,indoor humidity,and user- adjustable timer settings to determine when ventilation is required. Allows normal ventilation operation down to 20°F ‘outdoor temperature without heating and down to 0°F with heating,Also prevents ventilation operation if ‘outdoor air temperature is above 100°F or below O°F. Mode C:Timer Controlled Ventilation for Cold Climates (with temperature and humidity limits) Uses outdoor temperature,indoor humidity,and user- agjustable timer settings to determine when ventilation is required. Allows normal ventilation operation down to O°F outdoor temperature.Also prevents ventilation operation if outdoor air temperature is above 100°F or below °F. Mode D:Timer Controlled Ventilation for Warm Climates (with temperature and humidity limits) Uses outdoor temperature,indoor humidity,and user- adjustable timer settings to determine when ventilation is required, Allows normal ventilation operation down to 40°F outdoor temperature without heating and down to 0°F with heating,Also prevents ventilation operation if outdoor air temperature is above 90°F or below 0°F. FEATURES COMPONENTS Kit includes Digital Ventilation Controller,motorized damper,outdoor temperature sensor,and 24 VAC transformer. Controller Input:22 to 30 VAC,2.0VA nominal Damper Output:18 to 30 VAC,10VA nominal Temperature accuracy:+5°F Relative Humidity Accuracy:#5%RH Ventilation Time:0-60 minutes (selectable) Must be installed at least6inchesup-stream from fresh air intake duct,humidifier or humidifier bypass duct work. Indoor Humidity is measured In the return duct with a sensor built into the Controller. NOTE -This system may not be installed with a power- robbing thermostat. VENTILATION TIME SETTINGS, ‘The time settings determine when and how long to ventilate.The following chart can be used to determine the time settings.For a more precise way of determining ventilation time,see the Ventilation Worksheet on the following page. LVCS Ventilation Control System //Page 2 Controller Settings Ventilation Time -Set by the knob on front exterior of controller,Unlimited settings from Off to 60 minutes. Test -"TEST"setting is all the way clockwise on the Ventilation Time knob.This setting is used to check the Controller at installation.In Test mode the Ventilation Controller activates the HVAC blower and opens the damper for one minute or until the knob is taken off the “Test”setting,whichever occurs first.After the minute has passed,the Ventilation Controller will not work until the knob Is placed in the “off”position for several seconds then setting it to the desired ventilation time. Outdoor Temperature Sensor Senses outdoor temperature and reports to the controller, ‘Sensor should be installed in the fresh air intake hood (field provided)or in the intake duct,no more than three feet from the outside wall If the outdoor temperature Is above 100°F or below 0” the damper will not open. Damper6in,diameter,10-3/4 in.length Normally-closed,power-open 24 VAC 10.31 amp /Two-wire ‘Transformer 420V primary,24 VAC secondary 40VA output VENTILATION TIME SETTING MINUTES PER HOUR, anscribasee Number of Bedrooms sq.ft.2 3 4 5 41000-1500|20min.|25min.[30min.|35 min, 460-2000|25min]80min |-s0min_|98 min. 2004-2500|28min.|20 min,[asm]40 min. 2501-3000|30min.|36min.|40nme|40 min. ~so0t-3500|somin.|35min.|40min.|45 min ‘NOTES Tale based on ASHRAE 622-2010 ‘sed on 20 ele esh sir cl wt 0.18 in we sai pressure. ‘longer duct erlower rela sae prose wl increase the venti time ‘equ‘ca odes may sat tho te settings VENTILATION WORKSHEET : Quality of airis regulated by preventing ventilation when CFM required is based on ASHRAE Ventilation the outside air is too hot,too cold,or could raise the Standard,the area and occupancy of the house. relative humidity in the home above 55%.CFM delivered is based on length of fresh air intake Quantity ofair is regulated by setting the Ventilation duct,static pressure of the return,and the type of duct. Time.The following three steps will help assure proper agjustment of the controller. Stop 1 -Determine Ventilation Air Required (per ASHRAE Standard 62.2-2010) Find square footage of house on horizontal avis. Draw a vertical line up from the bottom to the point that intersects the line for the number of bedrooms in the house. From the point where the house size and bedroom lines intersect,draw a horizontal line to the left (vertical) axis to determine how much ventilation air (CFM)is required. NOTE -ASHRAE 62.2-2010 calls for 4 CFM of ventilation per 100 square feet of house plus 7.5 CFM per bedroom plus an additional 7.5 CFM. ‘Step 2 -Determine How Much Ventilation Air the System will Deliver Ventilation Air the System Will Deliver -CFM seuhele ea cayastee.7StolePresouteofReturnDuctIn.waremousegaa,eee cos [oto|os|03 025|030 into the house based fresh air intake duct _|FIex/Rigid|Flex|Rigid |Flex|Rigid Flex|Rigid|Flex[Rigid ‘on the length and type.10 fe.60|65|85|90|105/110 135|140|150|160 of fresh air duct used 204 35|60|0|5 [100]105 130 [135|140|150eaeaeeee)0 ft 50|55 |75|80|95|100|110|115|125|130|130]140 pressure in the returnere epost shown,tho ex dc eld tose with Wo wide 0”ends altho darpec uly op.For nd pe theeantra0lbsaethedamperulyopen.For bath peso uc the a tsk Is teminaed wt amet von stitdeteen,Adu afow up or down for valor,Icing elbows or bends.rth eng of uct i sted. ‘Step 3 -Ventilation Controller Setting Using the value obtained in Step 1,locate the CFM required on the left (vertical)axis and draw a horizontal [ine to the end of the chart. Using the value obtained in Step 2,locate the CFM Delivered on the horizontal axis and draw a vertical line up from the bottom to a point beyond the vertical CFM required line. The point where the two lines intersect indicates where the Ventilation Time should be set.It may be necessary to estimate the precise setting if the intersection point falls between two lines. LCS Ventilation Control System /Page 3 ‘REVISIONS, Sections Description of Change Features Damper actuator updated. Visit us at vnaennox.com For tho latest technical information,wnulennoxdavonet.com Contact us at 1-800-4-LENNOX NOTE -Due to Lanna angeng commitment to qual,Specflealons,Ratings and Dimensions subject ta change without noize and wou ining Bally. Improper instalation,educimen alton,sence oemantenance can cause property drag er parson in.Ingallton and sence must be promod by a qualified nls gr soning agency,(©2018 Lema ndustes Ie,