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ATTENTION INSTALLING PERSONNEL

RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.

Installer:  Affix all manuals adjacent to the unit.

These furnaces comply with requirements em-
bodied in the American National Standard / Na-
tional Standard of Canada ANSI Z21.47·CSA-
2.3 Gas Fired Central Furnaces.

As a professional installer, you have an obligation to know the product better than the customer.

This includes all safety precautions and related items.

Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual.

Pay special attention to all safety warnings. Often during installation or repair, it is possible to place yourself

in a position which is more hazardous than when the unit is in operation.

Remember, it is 

your

 responsibility to install the product safely and to know it well enough

to be able to instruct a customer in its safe use.

Safety is a matter of common sense...a matter of thinking before acting.

Most dealers have a list of specific, good safety practices...follow them.

The precautions listed in this Installation Manual are intended as supplemental to existing practices.

However, if there is a direct conflict between existing practices and the content of this manual,

 the precautions listed here take precedence.

NOTE

: Please contact your distributor or our website listed below

for the applicable Specification Sheet referred to in this manual.

G

OODMAN

 

WILL

 

NOT

 

BE

 

RESPONSIBLE

 

FOR

 

ANY

 

INJURY

 

OR

 

PROPERTY

 

DAMAGE

 

ARISING

 

FROM

 

IMPROPER

 

SERVICE

 

OR

 

SERVICE

 

PROCEDURES

.

 

I

F

 

YOU

 

INSTALL

 

OR

 

PERFORM

 

SERVICE

 

ON

 

THIS

 

UNIT

,

 

YOU

 

ASSUME

 

RESPONSIBILITY

 

FOR

 

ANY

 

PERSONAL

 

INJURY

 

OR

 

PROPERTY

 

DAMAGE

 

WHICH

 

MAY

 

RESULT

.

 

M

ANY

 

JURISDICTIONS

 

REQUIRE

 

A

 

LICENSE

 

TO

 

INSTALL

 

OR

 

SERVICE

 

HEATING

 

AND

 

AIR

 

CONDITIONING

 

EQUIPMENT

.

WARNING

5151 San Felipe Suite 500 • Houston, TX 77056

www.goodmanmfg.com • www.amana-hac.com

©

 2011 - 2013 Goodman Manufacturing Company, L.P.

IO-429A
6/2013

I

NSTALLATION

  I

NSTRUCTIONS

 

FOR

 *(D, M)VC8 G

AS

  F

URNACE

(CATEGORY I )

 is a registered trademark of Maytag Corporation or its related companies and is used under license.  All rights reserved.

Summary of Contents for DVC8

Page 1: ...ng Most dealers have a list of specific good safety practices follow them The precautions listed in this Installation Manual are intended as supplemental to existing practices However if there is a di...

Page 2: ...ITION 13 CHECK 6 DILUTION AIR 14 CHECK 7 COMPLETE THE INSTALLATION 14 FIX 1 LINER TERMINATION 14 FIX 2 CHANGE VENTING ARRANGEMENTS 14 FIX 3 REBUILD THE CROWN 15 FIX 4 RELINING 15 ELECTRICAL CONNECTION...

Page 3: ...MMUNICATING THERMOSTAT 33 NETWORK TROUBLESHOOTING 34 SYSTEM TROUBLESHOOTING 34 NORMAL SEQUENCE OF OPERATION 34 POWER UP 34 HEATING MODE 35 COOLING MODE 36 FAN ONLY MODE 36 OPERATIONAL CHECKS 36 SAFETY...

Page 4: ...furnace may be used as a construction site heater only if certain conditions are met These conditions are listed in the PRODUCT APPLICATION section of this manual TO PREVENT PERSONAL INJURY OR DEATH D...

Page 5: ...TO EXTREMELY LOW RETURN AIR TEMPERATURES AND EXPOSURE TO CORROSIVE OR VERY DIRTY ATMOSPHERES WARNING TO PREVENT PERSONAL INJURY OR DEATH DUE TO ASPHYXIATION THIS FURNACE MUST BE CATEGORY I VENTED DO N...

Page 6: ...CAUTIONS NOTE Discharge body s static electricity before touching unit An electrostatic discharge can adversely affect electrical com ponents Use the following precautions during furnace installation...

Page 7: ...anual J Load Cal culations published by the Air Conditioning Contractors of America In the USA this furnace MUST be installed in accordance with the latest edition of the ANSI Z223 1 booklet entitled...

Page 8: ...g the furnace Ensure adequate combustion air is available for the furnace Improper or insufficient combustion air can expose building occupants to gas combustion products that could include carbon mon...

Page 9: ...3 Latest Edition Section 1 23 1 The following steps shall be followed with each appliance connected to the venting system placed in operation while any other appliances connected to the venting syste...

Page 10: ...the furnace area by means of ventilation grilles or ducts connecting directly to the outdoors or spaces open to the outdoors such as attics or crawl spaces CATEGORY I VENTING VERTICAL VENTING TO PREV...

Page 11: ...e power to furnace Counterflow units are shipped with the induced draft blower discharging from the top of the furnace Top as viewed for a counterflow installation Vent the furnace in accordance with...

Page 12: ...ghest connected equip ment draft hood outlet or flue collar Wash Clay Tile Size 8 x 8 x12 Each x 24 Length 1 2 to 1 Air Space Second Floor First Floor Attic Floor Roof Line Throat Damper Breech Clean...

Page 13: ...he lowest existing vent connector and examine the inside of the elbow or tee at the base of the liner Asmall amount of soot may be considered acceptable provided the installer vacuums it away If ruste...

Page 14: ...lly with a B Vent Under some conditions a 90 furnace could be installed rather than an 80 furnace The 90 furnace can be vented hori zontally or vertically through PVC pipe Next use a flashlight and sm...

Page 15: ...teel liners were developed for use with oil or solid fuel appliances They are not suitable for use with gas fired appliances Flexible liners specifically intended and tested for gas applications are l...

Page 16: ...val or routine maintenance JUNCTION BOX RELOCATION EDGES OF SHEET METAL HOLES MAY BE SHARP USE GLOVES AS A PRECAUTION WHEN REMOVING HOLE PLUGS WARNING Line voltage connections can be made through eith...

Page 17: ...facilitate use with most cooling equipment Consult the wiring diagram located on the blower compartment door for further details of 115 Volt and 24 Volt wiring NOTE For single stage cooling applicati...

Page 18: ...HUM TRIM ENABLE Move to the ON position to enable dehumidification ON OFF S5 FOSSIL FUEL APPLICATIONS This furnace can be used in conjunction with a heat pump in a fossil fuel application A fossil fue...

Page 19: ...feeding one of the HUM terminals with a field installed wire from the R terminal or by connecting to the NO side of the low fire pressure switch AUXILIARY ALARM SWITCH The control is equipped with a 2...

Page 20: ...TO ENSURE SAFE AND PROPER FURNACE OPERATION ALL CONVERSIONS MUST BE PERFORMED BY A QUALIFIED INSTALLER OR SERVICE AGENCY This unit is configured for natural gas The appropriate manufacturer s propane...

Page 21: ...with masonry plaster or insulation or subjected to repeated wetting by liquids such as water except rain water detergents or sewage Gas line entrance Right side gas entrance alternate General Furnace...

Page 22: ...propane gas pressure must be 10 inch WC at the furnace manifold with all gas appliances in operation Maintaining proper gas pressure depends on three main factors 1 Vaporization rate depending on tem...

Page 23: ...at or cool position When the furnace is installed without a cooling coil it is rec ommended that a removable access panel be provided in the outlet air duct This opening shall be accessible when the f...

Page 24: ...EDURE AND ADJUSTMENT Furnace must have a 115 VAC power supply properly connected and grounded Proper polarity must be maintained for correct operation In addition to the following start up and adjustm...

Page 25: ...Ft until high capacity 100 is achieved Once achieved the display will show Ft without flashing A 5 minute timer will be started to al low sufficient opportunity for the gas pressure to be tested 5 If...

Page 26: ...10 0 w c Propane Gas Minimum 11 0 w c Maximum 13 0 w c INLET GAS SUPPLY PRESSURE If supply pressure differs from table make the necessary ad justments to pressure regulator gas piping size etc and or...

Page 27: ...cubic foot sec ft3 of gas being delivered to the furnace If the dial is a one cubic foot dial divide the number of seconds recorded in step 2 by one If the dial is a two cubic foot dial divide the num...

Page 28: ...ing 4 individual dip switches The following number refers to the individual labeled dip switch within that section Model Tap Low Stage High Stage Low Stage High Stage Cool Cool Heat Heat A 520 800 121...

Page 29: ...cooling air flow determined in step 2 and find the required cooling speed and adjustment setting Example A MVC80604BX furnace installed with a 2 5 ton air conditioning system The air flow needed is 10...

Page 30: ...demands are managed differently in a fully communi cating system than they are in a non communicating wired system The system operating mode as determined by the thermostat determines which unit calcu...

Page 31: ...thaComfortNet com patible heat pump in a fossil fuel application Afossil fuel applica tion refers to a combined gas furnace and heat pump installation which uses an outdoor temperature sensor to deter...

Page 32: ...ge AC ComfortNet G W1 W2 Y1 Y2 O 1 2 R C 4 Position Connectors from CTK0 Thermostat Kit System Wiring between Furnace and Non Communicating CompatibleSingleStageAirConditioner COMFORTNET SYSTEM ADVANC...

Page 33: ...difiable Model Number MOD NUM Displays the furnace model number Serial Number SER NUM Displays the furnace serial number Optional Software SOFTWARE Displays the application software revision IDENTIFIC...

Page 34: ...wards ground and when data 1 is decreasing towards ground data 2 is increasing towards 5V Typically the data 1 line is approximately 2 6Vdc and the data 2 transmission line is ap proximately 2 3Vdc Th...

Page 35: ...d Rapid Flashing Normal network traffc On Solid Data 1 Data 2 miss wire Possible Cause Corrective Action Comments None None None Communications Failure Depress Learn Button Verify that bus BIAS and TE...

Page 36: ...ontrol module performs safety circuit checks Outdoor fan and compressor are energized to their appropriate speed Circulator blower is energized on the appropriate cool speed at the level and time dete...

Page 37: ...t electrical components Use the following precautions during furnace installation and servicing to protect the integrated control module from dam age By putting the furnace the control and the person...

Page 38: ...ck for blockage and or leakage Check hose connections at and internal to furnace Wiring Check electrical connections for tightness and or corrosion Check wires for damage Filters FILTERS TO ENSURE PRO...

Page 39: ...in cleanout cable Attach a variable speed reversible drill to the other end of the cable Slowly rotate the cable with the drill and insert it into one of the heat exchanger tubes While reversing the d...

Page 40: ...Call for Service icon illuminated ComfortNet thermostat scrolls Check Furnace message E0 Furnace lockout due to an excessive number of ignition retries 3 total LOCKOUT E0 Failure to establish fame Ca...

Page 41: ...rs and ductwork for blockage Clean flters or remove obstruction Check circulator blower speed and performance Correct speed or replace blower motor if necessary Check burners for proper alignment Chec...

Page 42: ...d improperly Blocked fue and or inlet air pipe blocked drain system or weak induced draft blower Incorrect pressure switch set point or malfunctioning switch contacts Loose or improperly connected wir...

Page 43: ...ontrol module has lost communications with circulator blower motor MOTOR COMM b1 Loose wiring connection at circulator motor control leads Failed circulator blower motor Failed integrated control modu...

Page 44: ...t scrolls Check Furnace message b7 MOTOR PARAMS b7 Furnace operates at reduced performance or Integrated control module LED display provides b9 error code b9 LOW ID AIRFLOW B9 Blocked filters Restrict...

Page 45: ...D 115 VAC POLARITY DATANOT YET ON NETWORK INVALID MEMORYCARD DATA BLOWER MOTOR NOT RUNNING BLOWER COMMUNICATION ERROR BLOWER HP MIS MATCH BLOWER MOTOR OPERATING IN POWER TEMPERATURE OR SPEED LIMIT BLO...

Page 46: ...D Set dip switches S3 1 and S3 2 to the appropriate ON OFF positions 2 Select model and desired High Stage Heating Airflow Determine the corresponding tap A B C or D Set dip switches S4 3 and S4 4 to...

Page 47: ...D On On Add 5 Off Off Minus 5 On Off Add 10 Off On Minus 10 On On A Off Off B On Off C Off On D On On A Off Off B On Off C Off On D On On Disabled Off Enabled On Disabled Off Enabled On 25 Off Off 50...

Page 48: ...PU 3 IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACED IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF C USE COPPER CONDUCTORS ONLY RD INTEGRATED CONTR...

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