{"product_id":"aprilaire-600-large-bypass-evaporative-humidifier","title":"AprilAire 600 Large Bypass Evaporative Humidifier","description":"\u003cp\u003e\u003cstrong\u003eA high-capacity whole-house large bypass evaporative humidifier featuring a built-in damper for seamless seasonal changeover.\u003c\/strong\u003e The AprilAire Model 600 delivers up to 17 gallons per day (GPD) of moisture distribution for homes up to 5,000 sq. ft. Built with an integrated bypass damper that eliminates the need for field-installed duct dampers, the Model 600 allows homeowners to switch between Winter humidification and Summer cooling modes with a single rotary dial. Equipped with the Model 60 Automatic Digital Humidifier Control and outdoor temperature sensor, the unit continuously modulates humidity output to protect hardwood floors, cabinetry, and interior architectural finishes across Canadian heating seasons.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in bypass damper\u003c\/strong\u003e — integrated rotary damper switches effortlessly between Winter and Summer positions without requiring separate duct damper hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh evaporative capacity\u003c\/strong\u003e — delivers 17 gallons per day, providing comprehensive whole-home humidity coverage for residential floor plans up to 5,000 sq. ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic digital humidity control\u003c\/strong\u003e — includes Model 60 digital controller and outdoor temperature sensor to dynamically balance humidity and prevent window moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-efficiency Model 35 Water Panel\u003c\/strong\u003e — expanded aluminum matrix with porous ceramic coating ensures uniform water flow and maximum moisture evaporation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReversible bypass duct collar\u003c\/strong\u003e — 6-inch round bypass duct collar mounts on either the left or right side of the chassis for flexible equipment pad installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSizing guide\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTight construction (modern building code, 0.5 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 5,000 sq. ft. (465 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAverage construction (typical residential, 1.0 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 2,500 sq. ft. (232 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLoose construction (older heritage structure, 1.5 ACH)\u003c\/th\u003e\n\u003ctd\u003eUp to 1,500 sq. ft. (139 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd\u003eAprilAire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e600 Series Evaporative Bypass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel \/ SKU\u003c\/th\u003e\n\u003ctd\u003e600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEquipment type\u003c\/th\u003e\n\u003ctd\u003eWhole-house large bypass evaporative humidifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eEvaporative capacity\u003c\/th\u003e\n\u003ctd\u003e17 Gallons Per Day (GPD) @ 120°F plenum temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (tight construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 5,000 sq. ft. (465 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (average construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 2,500 sq. ft. (232 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCoverage (loose construction)\u003c\/th\u003e\n\u003ctd\u003eUp to 1,500 sq. ft. (139 m²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eIntegrated bypass damper\u003c\/th\u003e\n\u003ctd\u003eBuilt-in rotary damper (Winter \/ Summer settings)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eHumidifier control included\u003c\/th\u003e\n\u003ctd\u003eModel 60 Automatic Digital Humidifier Control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutdoor temperature sensor\u003c\/th\u003e\n\u003ctd\u003eIncluded (digital proportional reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eReplacement water panel\u003c\/th\u003e\n\u003ctd\u003eModel 35 Water Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBypass duct connection\u003c\/th\u003e\n\u003ctd\u003e6 in. round duct collar (reversible left or right)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePlenum opening dimensions\u003c\/th\u003e\n\u003ctd\u003e14-3\/4 in. W × 14-5\/16 in. H (375 × 364 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eUnit dimensions\u003c\/th\u003e\n\u003ctd\u003e15-5\/8 in. W × 15-7\/8 in. H × 10-1\/4 in. D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectrical rating\u003c\/th\u003e\n\u003ctd\u003e24 VAC, 60 Hz, 0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTransformer included\u003c\/th\u003e\n\u003ctd\u003e120 VAC to 24 VAC, 10 VA Class 2 Transformer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater feed rate\u003c\/th\u003e\n\u003ctd\u003e3 Gallons Per Hour (GPH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater supply connection\u003c\/th\u003e\n\u003ctd\u003e1\/4 in. O.D. copper tubing with compression fitting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDrain hose connection\u003c\/th\u003e\n\u003ctd\u003e1\/2 in. I.D. flexible tubing to floor drain or pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater supply temperature\u003c\/th\u003e\n\u003ctd\u003eCold or service hot water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCertifications\u003c\/th\u003e\n\u003ctd\u003eUL rated, AHRI Guideline F compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eBefore you buy\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRequires an existing or field-cut 14-3\/4 in. by 14-5\/16 in. opening on the warm air supply plenum or cold air return duct with 6-inch bypass ductwork.\u003c\/li\u003e\n\u003cli\u003eThe Model 60 Automatic Digital Control must be mounted on the cold air return duct at least 6 inches upstream of the bypass connection for accurate humidity sensing.\u003c\/li\u003e\n\u003cli\u003eMount the outdoor temperature sensor on an exterior wall facing north or east out of direct sunlight using standard 18\/2 low-voltage wire.\u003c\/li\u003e\n\u003cli\u003eEnsure the built-in damper knob is set to \"WINTER\" during the heating season and rotated to \"SUMMER\" when central air conditioning is active.\u003c\/li\u003e\n\u003cli\u003eAnnual replacement of the Model 35 Water Panel is recommended at the start of every heating season to maintain rated 17 GPD output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQuestions about bypass ducting or seasonal damper operation? Contact our technical team for assistance.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhich water panel does the Model 600 use?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe Model 600 uses the standard AprilAire Model 35 evaporative water panel, featuring an aluminum honeycomb core with a porous clay coating.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat ductwork connections are needed for installation?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe unit requires an opening on the supply or return duct (approx. 10 in. wide by 12.75 in. high) and connects via a 6-inch round bypass metal duct pipe to the opposite plenum.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eDoes the Model 600 feature an integrated bypass damper?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eYes. The built-in bypass damper can be set to Winter (open) during the heating season and turned to Summer (closed) when the central air conditioning system runs.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat electrical power is needed?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe unit includes a 24 V AC water solenoid valve powered by a 120 V to 24 V 10 VA step-down transformer.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eHow does the automatic control prevent condensation on windows?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe Model 60 digital controller continuously monitors outdoor air temperature and reduces indoor relative humidity as outdoor temperatures drop, preventing window sweating and drywall moisture damage.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eWhat drain requirements exist for the Model 600?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eThe unit features a 1\/2-inch drain outlet spud that connects to flexible vinyl tubing routed with continuous fall to a floor drain or sump pit.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eCan this humidifier be installed with a heat pump system?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eYes. When installed with a heat pump, plumb the humidifier to the domestic hot water line and configure the blower activation mode to maximize moisture transfer.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails class=\"details\"\u003e\u003csummary\u003e\u003cstrong\u003eHow is the humidifier maintained?\u003c\/strong\u003e\u003c\/summary\u003e\u003cdiv class=\"details-content\"\u003e\u003cp\u003eReplace the Model 35 water panel annually, clean the distribution tray of lime deposits, inspect the solenoid valve strainer, and clean the drain tube.\u003c\/p\u003e\u003c\/div\u003e\u003c\/details\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/tipxadpce4\/original\/aprilaire-600-series-humidifier-specification-sheet-382.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire 600 Series Whole-House Evaporative Humidifier Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/uw7plaiqy8\/original\/aprilaire-canada-all-products-specification-reference-guide-2258.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire Canada All Products Specification Reference Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/rp.widen.net\/content\/dx5u1sdttk\/original\/aprilaire-300-400-400m-500-500m-600-600m-700-700m-humidifier-owners-manual-B2209190.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eAprilAire Model 600 Humidifier Owner's Manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003eSpecifications compiled from official AprilAire 600 Series Whole-House Evaporative Humidifier Specification Sheet (Lit. No. 382) and 600 Series Owner's Manual (B2209190). All specifications subject to manufacturer verification. \u003ca href=\"https:\/\/rp.widen.net\/content\/tipxadpce4\/original\/aprilaire-600-series-humidifier-specification-sheet-382.pdf?u=5rn8it\" target=\"_blank\" rel=\"noopener\"\u003eView AprilAire 600 specifications (PDF)\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Safety Notice:\u003c\/strong\u003e Bypass humidifiers must be installed on supply or return ductwork with proper water supply, drain line, and transformer wiring per AprilAire instructions.\u003c\/p\u003e","brand":"AprilAire","offers":[{"title":"Automatic Digital Control (Model 60)","offer_id":53974510174502,"sku":"600","price":220.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1039\/8521\/7830\/files\/aprilaire_600_1_hero.jpg?v=1792998193","url":"https:\/\/avlshop.ca\/products\/aprilaire-600-large-bypass-evaporative-humidifier","provider":"AVL Shop","version":"1.0","type":"link"}