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INSTALLATION INSTRUCTIONS FOR*CVC96 & *MVC96TWO-STAGE GAS FURNACE(Type FSP CATEGORY IV Director Non Direct Vent Air Furnace)These furnaces comply with requirements embodied in the American National Standard / National Standard of Canada ANSI Z21.47·CSA-2.3Gas Fired Central Furnaces.Installer:Affix all manualsadjacent to the unit.As a professional installer you have an obligation to knowthe product better than the customer. This includes all safetyprecautions and related items.Prior to actual installation, thoroughly familiarize yourselfwith this Instruction Manual. Pay special attention to allsafety warnings. Often during installation or repair it ispossible to place yourself in a position which is morehazardous than when the unit is in operation.Remember, it is your responsibility to install the productsafely and to know it well enough to be able to instruct acustomer in its safe use.Safety is a matter of common sense.a matter of thinkingbefore acting. Most dealers have a list of specific goodsafety practices.follow them.The precautions listed in this Installation Manual are intendedas supplemental to existing practices. However, if there isa direct conflict between existing practices and the contentof this manual, the precautions listed here take precedence.RECOGNIZE THIS SYMBOLAS A SAFETY PRECAUTION.*NOTE:Please contact your distributor or our website forthe applicable Specification Sheet referred to in this manual.IOG-200808/14TABLE OF CONTENTSSAFETY CONSIDERATIONS . 3SHIPPING INSPECTION . 4ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS . 4TO THE INSTALLER . 4PRODUCT DESCRIPTION . 4FEATURES . 4PRODUCT APPLICATION . 5LOCATION REQUIREMENTS & CONSIDERATIONS . 6CLEARANCES AND ACCESSIBILITY . 7EXISTING FURNACE REMOVAL . 7THERMOSTAT LOCATION . 8COMBUSTION & VENTILATION AIR REQUIREMENTS . 8INSTALLATION POSITIONS . 8HORIZONTAL APPLICATIONS & CONSIDERATIONS . 9FURNACE SUSPENSION . 9FRONT COVER PRESSURE SWITCH TUBE LOCATION . 9DRAIN TRAP AND LINES . 9LEVELING . 9ALTERNATE VENT/FLUE AND COMBUSTION AIR CONNECTIONS . 9ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS . 10DRAIN PAN . 10FREEZE PROTECTION . 10PROPANE GAS/HIGH ALTITUDE INSTALLATIONS . 10VENT/FLUE PIPE & COMBUSTION AIR PIPE . 10DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT . 11MATERIALS AND JOINING METHODS . 11PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES . 11TERMINATION LOCATIONS . 12CANADIAN VENTING REQUIREMENTS . 12STANDARD FURNACE CONNECTIONS . 12NON-DIRECT VENT (SINGLE PIPE) PIPING . 14VENT/INTAKE TERMINATIONS FOR INSTALLATIONOF MULTIPLE DIRECT VENT FURNACES . 17CONCENTRIC VENT TERMINATION . 17SIDE WALL VENT KIT . 17CONDENSATE DRAIN LINES & DRAIN TRAP . 17GENERAL DRAIN INFORMATION . 18FIELD SUPPLIED DRAIN . 18UPFLOW MODEL INSTALLED VERTICALLY . 18DRAIN EXITING RIGHT SIDE . 18DRAIN EXITING LEFT SIDE . 18UPFLOW MODEL INSTALLED HORIZONTALLYWITH RIGHT SIDE DOWN . 19UPFLOW MODEL INSTALLED HORIZONTALLY WITH LEFT SIDE DOWN . 19COUNTERFLOW MODEL INSTALLED VERTICALLY . 20DRAIN EXITING LEFT SIDE . 20DRAIN EXITING RIGHT SIDE . 20COUNTERFLOW MODEL INSTALLED HORIZONTALLYWITH RIGHT SIDE DOWN . 20COUNTERFLOW MODEL INSTALLED HORIZONTALLYWITH LEFT SIDE DOWN . 215151 San Felipe Suite 500Houston, TX 77056www.goodmanmfg.com www.amana-hac.com 2014 Goodman Manufacturing Company, L.P.is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

ELECTRICAL CONNECTIONS . 21WIRING HARNESS . 21115 VOLT LINE CONNECTIONS . 21JUNCTION BOX RELOCATION . 2224 VOLT THERMOSTAT WIRING . 22SINGLE-STAGE HEATING THERMOSTAT APPLICATION . 2324 VOLT DEHUMIDISTAT WIRING . 23FOSSIL FUEL APPLICATIONS . 24115 VOLT LINE CONNECTION OF ACCESSORIES(HUMIDIFIER AND ELECTRONIC AIR CLEANER) . 24AUXILIARY ALARM SWITCH: . 25GAS SUPPLY AND PIPING . 25HIGH ALTITUDE DERATE . 25PROPANE GAS CONVERSION . 25GAS PIPING CONNECTIONS . 26PROPANE GAS TANKS AND PIPING . 28CIRCULATING AIR & FILTERS . 29DUCT WORK - AIR FLOW . 29CHECKING DUCT STATIC . 29BOTTOM RETURN AIR OPENING [UPFLOW MODELS] . 30FILTERS - READ THIS SECTION BEFORE INSTALLINGTHE RETURN AIR DUCT WORK . 30UPRIGHT INSTALLATIONS . 30HORIZONTAL INSTALLATIONS . 31STARTUP PROCEDURE & ADJUSTMENT . 31DRAIN TRAP PRIMING . 31FURNACE OPERATION . 31GAS SUPPLY PRESSURE MEASUREMENT . 31GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT . 33GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY) . 33TEMPERATURE RISE . 34CIRCULATOR BLOWER SPEEDS . 34BLOWER HEAT OFF DELAY TIMINGS . 36COMFORTNET SYSTEM . 37OVERVIEW . 37AIRFLOW CONSIDERATIONS . 37FOSSIL FUEL APPLICATIONS . 37CTK0* WIRING . 38COMFORTNET SYSTEM ADVANCED FEATURES . 38FURNACE ADVANCED FEATURES MENUS . 39THERMOSTAT MENU . 41DIAGNOSTICS . 41NETWORK TROUBLESHOOTING . 41SYSTEM TROUBLESHOOTING . 42NORMAL SEQUENCE OF OPERATION . 42POWER UP . 42HEATING MODE . 42COOLING MODE . 42FAN ONLY MODE . 43OPERATIONAL CHECKS . 43SAFETY CIRCUIT DESCRIPTION . 43INTEGRATED CONTROL MODULE . 43PRIMARY LIMIT . 43AUXILIARY LIMIT . 43ROLLOUT LIMIT . 43PRESSURE SWITCHES . 43FLAME SENSOR . 43TROUBLESHOOTING . 43ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS . 43DIAGNOSTIC CHART . 44RESETTING FROM LOCKOUT . 44MAINTENANCE . 44ANNUAL INSPECTION . 44FILTERS . 44BURNERS . 45INDUCED DRAFT AND CIRCULATOR BLOWERS . 45CONDENSATE TRAP AND DRAIN SYSTEM(QUALIFIED SERVICER ONLY) . 45FLAME SENSOR (QUALIFIED SERVICER ONLY) . 45FLUE PASSAGES (QUALIFIED SERVICER ONLY) . 45BEFORE LEAVING AN INSTALLATION . 45REPAIR AND REPLACEMENT PARTS . 45DIP SWITCHES . 46STATUS CODES . 47TROUBLESHOOTING CHART . 48WIRING DIAGRAM . 54SPECIAL INSTRUCTIONS FOR PRODUCTS INSTALLED . 55IN THE STATE OF MASSACHUSETTS . 552

WARNINGWARNINGTO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPERINSTALLATION , ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE,REFER TO THIS MANUAL . FOR ADDITIONAL ASSISTANCE ORINFORMATION , CONSULT A QUALIFIED INSTALLER , SERVICER AGENCY ORTHE GAS SUPPLIER .GOODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTYDAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES.IF YOU INSTALL OR PERFORM SERVICE ON THIS UNIT, YOU ASSUMERESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGEWHICH MAY RESULT. MANY JURISDICTIONS REQUIRE A LICENSE TOINSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPMENT.WARNINGSAFETY CONSIDERATIONSIF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWEDEXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTYDAMAGE , PERSONAL INJURY OR LOSS OF LIFE.DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS ANDLIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE .WHAT TO DO IF YOU SMELL GAS: D O NOT TRY TO LIGHT ANY APPLIANCE. D O NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONEIN YOUR BUILDING . IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’ SPHONE. FOLLOW THE GAS SUPPLIER’S INSTRUCTIONS. IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIREDEPARTMENT.INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIEDINSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace.To ensure proper installation and operation, thoroughly readthis manual for specifics pertaining to the installation andapplication of this product.This furnace is manufactured for use with natural gas. Itmay be field converted to operate on L.P. gas by using theappropriate L.P. conversion kit listed in the PROPANE GAS/HIGH ALTITUDE INSTALLATIONS section of this manualInstall this furnace only in a location and position as specified in LOCATION REQUIREMENTS & CONSIDERATIONS section and INSTALLATION POSITIONS section of this manual.Provide adequate combustion and ventilation air to the furnace as specified in COMBUSTION & VENTILATION AIR REQUIREMENTS section of this manual.WARNINGTHIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALSWHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH AREKNOWN TO THE STATE OF C ALIFORNIA TO CAUSE CANCER , BIRTHDEFECTS OR OTHER REPRODUCTIVE HARM .Combustion products must be discharged to the outdoors.Connect this furnace to an approved vent system only, asspecified in VENT/FLUE PIPE & COMBUSTION AIR PIPE section of this manual.WARNINGNever test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections, as specified in GASSUPPLY AND PIPING section of this manual.HEATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE,ROUTINE, INSPECTION , MAINTENANCE AND SUPERVISION . IF THEAlways install a furnace to operate within the furnace’s intended temperature-rise range with a duct system which hasexternal static pressure within the allowable range, as specified on the furnace rating plate and OPERATIONAL CHECKSsection of these instructions.MAINTAINED AND MONITORED . IN THE EVENT THAT THE BUILDINGWhen a furnace is installed so that supply ducts carry aircirculated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by duct(s)sealed to the furnace casing and terminating outside thespace containing the furnace.SHOULD BE DRAINED AS WELL AND , IN SUCH CASE , ALTERNATIVE HEATBUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT,CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED,MAYBE EXPOSED TO FREEZING TEMPERATURES AND WILL BE VACANT ,ALL WATER -BEARING PIPES SHOULD BE DRAINED , THE BUILDING SHOULDBE PROPERLY WINTERIZED , AND THE WATER SOURCE CLOSED . IN THEEVENT THAT THE BUILDING MAY BE EXPOSED TO FREEZINGTEMPERATURES AND WILL BE VACANT , ANY HYDRONIC COIL UNITSSOURCES SHOULD BE UTILIZED.WARNINGA gas-fired furnace for installation in a residential garagemust be installed as specified in the LOCATION REQUIREMENTS AND CONSIDERATIONS section of this manual.TO PREVENT POSSIBLE PROPERTY DAMAGE , PERSONAL INJURY ORDEATH DUE TO ELECTRICAL SHOCK , THE FURNACE MUST BE LOCATED TOPROTECT THE ELECTRICAL COMPONENTS FROM WATER .This furnace may be used as a construction site heater onlyif certain conditions are met. These conditions are listed inthe PRODUCT APPLICATION section of this manual.Drain trap must be primed at time of installation. Trap isinternally partitioned; add water to both inlet ports until water appears at both sides of the outlet opening. Failure toprime trap at time of instal