PRODUCT DATA68-0258ES-1W8835A EnviraZone PanelAPPLICATIONThe W8835A EnviraZone Panel controls single-stage, multi-stage, conventional or heat pump heat/cool equipment. Itcontrols three zones, and is expandable up to nine zones withtwo additional W8703A Damper Interface Modules (DIM).For Internet access: http://yourhome.honeywell.com.For technical support, call: 1-800-828-8367.American Lung AssociationÆ Health HouseÆProgram and Honeywell Working TogetherFor Better AirDid you know that the average person breathes 3400gallons(12,870 liters) of air each day * and spends 90% of thatday inside?**Indoor air quality products from Honeywell are designed tohelp make your home more comfortableófrom zoningproducts that allow you to control the temperature in individualareas of the home to humidifiers and comfort control centersthat help balance the moisture content of your indoor air.Honeywell is proud to be a partner of the American LungAssociationÆ Health HouseÆ program that providesguidelines for constructing homes with improved air qualityand ventilation.For more information on ways to improve the air inside yourhome, please visit the Health House website at:www.healthhouse.organd the American Lung Association website at:www.lungusa.orgThe American Lung Association and its Health Houseprogram do not endorse products.For more information about Honeywell Indoor Air Qualityproducts, visit: http://yourhome.honeywell.com orcall: 1-800-345-6770 x531.*EPA.National Air Quality 1999 Status & Trends.**Indoor Air Pollution, An Introduction for Health Professionals, EPA, USGovernment Printing Office #1994-523-217/81322.IMPORTANTPlease read these instructions and keep them in yourrecords.ContentsApplication.........................................................................1Features ............................................................................2Specifications ....................................................................2Ordering Information .........................................................2Installation .........................................................................4Startup and Checkout........................................................8Operation...........................................................................8Troubleshooting.................................................................11