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Maytag Amana MEC96 Series Installation Instructions Manual

Two-stage, fsp category iv direct or non direct vent air furnace
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These furnaces comply with requirements
embodied in the American National
Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central
Furnaces.
INSTALLER: Affix all manuals adjacent to the unit.
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 your-
self 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 in-
tended 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.
Brand is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
IOG-2011Q
06/2019
*MEC96 & *CEC96
Two-Stage
Gas Furnaces
(Type FSP CATEGORY IV Direct
or Non Direct Vent Air Furnace)
(Type FSP CATÉGORIE IV Direct
ou four á air souffl‫ י‬non direct)
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2014-2019 Goodman Company, L.P.
5151 San Felipe St., Suite 500, Houston, TX 77056
www.goodmanmfg.com • www.amana-hac.com
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
NOTE: Please contact your distributor or our website
*
for the applicable Specification Sheet referred to in this
manual.
O
NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL
(
, "
")
HEREINAFTER
SERVICE
THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD
. T
SERVICE THE EQUIPMENT
HE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY
INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE
. I
PROCEDURES
F YOU SERVICE THIS UNIT
INJURY OR PROPERTY DAMAGE WHICH MAY RESULT
THAT REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS
,
MANUAL
ONLY LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT
,
,
INSTALLATION
ADJUSTMENT
SERVICING OR REPAIR OF THE EQUIPMENT SPECIFIED IN
,
THIS MANUAL
OR ATTEMPTING TO INSTALL
EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER TRAINING MAY RESULT IN
,
PRODUCT DAMAGE
PROPERTY DAMAGE
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
,
,
ADJUST
SERVICE OR REPAIR
,
YOU ASSUME RESPONSIBILITY FOR ANY
. I
,
N ADDITION
IN JURISDICTIONS
. I
MPROPER
,
,
ADJUST
SERVICE OR REPAIR THE
,
.
PERSONAL INJURY OR DEATH
-

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  Summary of Contents for Maytag Amana MEC96 Series

  • Page 1 Brand is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved. Our continuing commitment to quality products may mean a change in specifications without notice.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS Twinning ............26 S AFETY CONSIDERATIONS ........3 115 Volt Line Connection of Accessories (Humidifier and Electronic Air Cleaner) ....26 Shipping Inspection ..........4 Electrostatic Discharge (ESD) Precautions ....4 GAS SUPPLY AND PIPING ......... 27 To The Installer ..........4 High Altitude Derate ..........
  • Page 3: Safety Considerations

    intended temperature-rise range with a duct system which WARNING has external static pressure within the allowable range, as specified on the furnace rating plate and OPERATIONAL FIRE OR EXPLOSION HAZARD CHECKS section of these instructions. Failure to follow the safety warnings exactly could result When a furnace is installed so that supply ducts carry air in serious injury, death or property damage.
  • Page 4: Shipping Inspection

    WARNING WARNING HOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE ROUTINE INSPECTION MAINTENANCE AND SUPERVISION F THE FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY BUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED MAINTAINED AND MONITORED...
  • Page 5: Product Description

    RISQUE D'EMPOISONNEMENT AU MONOXYDE DE CARBONE Advertencia especial para la instalación de calentadores ó manejadoras de aire en áreas cerradas como estacionamientos ó cuartos de servicio. Cette ventilation est nécessaire pour éviter le danger d'intoxication Las emisiones de monóxido de carbono pueden circular a través au CO pouvant survenir si un appareil produisant du monoxyde del aparato cuando se opera en cualquier modo.
  • Page 6: Location Requirements & Considerations

    • Return air ducts are provided and sealed to the The total heat loss should be calculated by an approved meth- furnace. od or in accordance with “ASHRAE Guide” or “Manual J-Load Calculations” published by the Air Conditioning Contractors of •...
  • Page 7: Clearances And Accessibility

    larger than the base of the furnace. Refer to the • If the furnace is installed horizontally, ensure the Horizontal Applications and Considerations for access doors are not on the “up/top” or “down/ leveling of horizontal furnaces. bottom” side of the furnace. •...
  • Page 8 the other opening must be within 12 inches of the bottom of Clearance in accordance with local installation codes, the the confined space. In a typical construction, the clearance requirements of the gas supplier and the manufacturer's between the door and door frame is usually adequate to satisfy installation instructions.
  • Page 9: Existing Furnace Removal

    Existing Furnace Removal AVERTISSEMENT NOTE: When an existing furnace is removed from a venting RISQUE D'INTOXICATION AU MONOXYDE DE CARBONE system serving other appliances, the venting system may Si les étapes décrites ci-dessous ne sont pas suivies pour be too large to properly vent the remaining attached ap- chacun des appareils raccordés au système de ventilation pliances.
  • Page 10: Thermostat Location

    Installation Positions Thermostat Location The thermostat should be placed approximately five feet from the floor on a vibration-free, inside wall in an area having good air circulation. Do not install the thermostat where it may be influenced by any of the following: •...
  • Page 11: Horizontal Applications & Considerations

    Recommended Installation Positions Drain Trap and Lines In horizontal applications the condensate drain trap is secured *MEC96 models may be installed upflow or horizontally with to the furnace side panel, suspending it below the furnace. left or right side down. *CEC96 models may be installed A minimum clearance of 5.5”...
  • Page 12: Vent/Flue Pipe & Combustion Air Pipe

    In addition to PVC and ABS pipe and fittings, Innoflue ® Installation of this furnace at altitudes above 7000 ft (2134 m) Centrotherm Eco Systems and PolyPro by M&G Duravent are ® shall be made in accordance with the Listed High Altitude also approved vent and combustion air materials for instal- Conversion Kit available with this furnace.”...
  • Page 13: Proper Vent/Flue And Combustion Air Piping Practices

    PVC primer meeting ASTM F656 and PVC solvent cement meeting ASTM D2564 specifications must be used. Fittings must be DWV type fittings meeting ASTM D2665 and ASTM D3311. Carefully follow the manufactures instructions for ACCEPTABLE cutting, cleaning and solvent cementing of PVC. For Canadian Installations;...
  • Page 14: Termination Locations

    Termination Locations • The combustion air intake termination of a direct vent application should not terminate in an area Non-Direct Vent & which is frequently dusty or dirty. Direct Vent Vent/Flue Terminations NOTE: In Canada, the current edition of CAN/CSA B149.1- Non-Direct Vent 15 takes precedence over the preceding termination Vent/Flue Termination...
  • Page 15: Standard Furnace Connections

    Standard Furnace Connections furnace blower compartment. The combustion air intake pipe can also be secured directly to the counterflow unit It is the responsibility of the installer to ensure that the piping air intake pipe coupling. connections to the furnace are secure, airtight, and adequately supported.
  • Page 16 5. Increased Clearance Configuration using (2) 45 deg. Long Sweep irect nstallations elbows should be considered equivalent to one 90 deg. elbow. A minimum of one 90° elbow should be installed on the combus- 6. One 90° elbow should be secured to the combustion air intake connection.
  • Page 17: Non-Direct Vent (Single Pipe) Piping

    DOWN VENTING UPFLOW MODEL FURNACES ONLY Use alternate vent & combination air locations 6’ Max. Vent Pipe Floor Combustion Air Pipe Field Supplied Drain Tee on Vent Pipe 1/4” per foot min. slope to furnace Condensate trapped to prevent flue gas from escaping and routed to field supplied condensate disposal All piping and fittings must be joined per material manufacturers specifications...
  • Page 18 Vent/Flue Pipe Lengths and Diameters 12" MIN. For installations at or above 7,000 feet altitude, use 3” venting. Refer to the following table for applicable length, elbows, and pipe diameter for construction of the vent/ VENT/FLUE TEE ( OPTIONAL) flue pipe system of a non-direct vent installation. In ad- 45°...
  • Page 19: Vent/Intake Terminations For Installation Of Multiple Direct Vent Furnaces

    zone. Refer to Vent/Flue and Combustion Air Pipe - Termi- Figure 16 nation Locations or Concentric Vent Termination for specific details on termination construction. For details concerning connection of pipes to the furnace, refer to the Vent/Flue 90° ELBOWS Pipe and Combustion Pipe - Standard Furnace Connections or Alternate Furnace Connections.
  • Page 20: Concentric Vent Termination

    • The drain trap supplied with the furnace must be used. • The drain trap must be primed at time of installation. • The drain line between furnace and drain 3”MIN 24”MAX location must meet local and national codes. • The drain line between furnace and drain 12”...
  • Page 21: Upflow Model Installed Vertically

    Upflow Model Installed Vertically The trap and factory installed hoses remain as shipped. The furnace drain may exit either the right or left side of the furnace cabinet. Both sides of the cabinet have two .875” diameter holes which can be used interchangeably for drain and low voltage wiring purposes.
  • Page 22: Drain Exiting Left Side

    top. Secure it to the barbed fitting in the elbow with a red clamp. 6. For models DM96VE0303AN, DM96VE0403AN and DM- 96VE0603AN; locate the hose #2 (factory installed) and cut 1.5” length from the end of the hose. Insert hose #2 from outside the cabinet through the cabinet drain’s hole nearest to the top.
  • Page 23: Counterflow Model Installed Vertically

    Upflow Model Installed Horizontally with a “D” width cabinet, 5” for a “C” width cabinet, 8 ½” for a “B” width cabinet. Left Side Down-Alternate 6. Remove the rubber plug from vent – drain elbow side *Also see Front Cover Pressure Swith Tube Location on port.
  • Page 24: Drain Exiting Left Side

    Drain Exiting Left Side (See Figure 26) 1. Install a field supplied rubber coupling secured with a 1 1/4” clamp to enable removing the trap for future cleaning. Alternately, a PVC fitting may be glued on the trap outlet. 2. Install drain per local and National codes. Figure 27 Counterflow Model Installed Horizontally with Right Side Down (See Figure 28)
  • Page 25: Counterflow Model Installed Horizontally With Left Side Down

    8. The unused vent-drain elbow drip leg port must be plugged to prevent flue gases from escaping. Insert rubber plug removed in step 7 into the 100°elbow. (Inserting a blunt tool such as a 3/16’’ Allen wrench into the center of the rubber plug will stretch the plug and allow complete insertion) 9.
  • Page 26: Electrical Connections

    Electrical Connections junction box located inside the burner compartment. To make electrical connections through the opposite side of the Wiring Harness furnace, the junction box must be relocated to the other side of the burner compartment prior to making electrical The wiring harness is an integral part of this furnace.
  • Page 27: 24 Volt Thermostat Wiring

    Single-Stage Heating Thermostat Application 24 Volt Thermostat Wiring A single-stage thermostat with only one heating stage IMPORTANT NOTE may be used to control this furnace. The application of a IRE ROUTING MUST NOT INTERFERE WITH CIRCULATOR BLOWER single-stage thermostat offers a timed transition from low OPERATION FILTER REMOVAL OR ROUTINE MAINTENANCE to high fire.
  • Page 28: Volt Line Connection Of Accessories (Humidifier And Electronic Air Cleaner)

    NOTE: Each furnace must be connected to it’s own WARNING 115 VAC power supply. The L1 connection to each furnace must be in phase (connected to circuit HIGH VOLTAGE ! breakers on the same 115 VAC service panel phase O AVOID PERSONAL INJURY OR DEATH DUE TO leg).
  • Page 29: Propane Gas Conversion

    to the natural reduction in the density of both the gas fuel and pressure and manifold pressure are provided on the valve. combustion air as altitude increases. The kit will provide the The gas valve has a manual ON/OFF control located on the proper design certified input rate within the specified altitude valve itself.
  • Page 30: Propane Gas Tanks And Piping

    • Manual Shut Off Valve Alternate Manifold Burners Install a 1/8” NPT pipe plug fitting, accessible for (upstream from Gas Line test gage connection, immediately upstream of the ground joint Location pipe union) gas supply connection to the furnace. • Always use a back-up wrench when making the Gas Valve *Ground...
  • Page 31: Circulating Air & Filters

    a local propane gas supplier about installing a gas detecting duct connected to the furnace. NOTE: Ductwork must warning system. If the presence of gas is suspected, follow never be attached to the back of the furnace. For upflow the instructions listed in the Safety Considerations section installations requiring 1800 CFM or more, use either two of this manual.
  • Page 32 If the total external static pressure exceeds the maximum listed on the furnace rating plate, check for closed damp- ers, registers, undersized and/or oversized poorly laid out duct work. The temperature rise of the furnace must be within the temperature rise range listed on the furnace rating plate. Checking Static Pressure (80% Furnace Shown, 90% Similar) Figure 36...
  • Page 33: Bottom Return Air Opening [Upflow Models]

    Filters - Read This Section Before Installing The WARNING Return Air Duct work DGES OF SHEET METAL HOLES MAY BE SHARP SE GLOVES AS A Filters must be used with this furnace. Discuss filter mainte- PRECAUTION WHEN REMOVING SHEET METAL FROM RETURN AIR nance with the building owner.
  • Page 34: Horizontal Installations

    Clean Comfort™ brand MERV 11 air cleaners have 5¼” Furnace Startup media filters and are available in the following configu- 1. Close the manual gas shutoff valve external to the rations. Consult your distributor for information on our furnace. complete line of IAQ Clean Comfort™ products. 2.
  • Page 35: Gas Manifold Pressure Measurement And Adjustment

    pressure. Replace regulator cover screw. NOTE: If measuring gas pressure at the drip leg, a field- 9. Close thermostat “R”, “W1” and “W2” contacts to supplied hose barb fitting must be installed prior to making provide a call for high stage heat. the hose connection.
  • Page 36: Dip Switch Settings

    DIP Switch Settings PCBBF139 CONTROL BOARD DIP SWITCHES Cooling Switches Heating Switches Continuous Fan CFM Switches Dip Switch Switch Purpose Function Group Thermostat 2 Stage Stat Thermostat 1 Stg Stat 10 min delay Selection Setup 1 Stg Stat 20 min delay Auto OFF* Switches...
  • Page 37 DIP Switch Settings PCBBF139 *MEC960303AN - COOLING Static DIP Sw itches Tstat S1-1 S1-2 S1-3 Call **OFF OFF OFF 1005 1070 1040 ON OFF OFF ON ON OFF 1005 1070 1040 OFF ON OFF^ OFF OFF ON^ OFF ON ON^ ON OFF ON 1005 1070...
  • Page 38 DIP Switch Settings PCBBF139 *MEC960403AN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call CFM **OFF OFF OFF 1070 1040 1005 ON OFF OFF ON ON OFF 1070 1040 1005 OFF ON OFF^ OFF OFF ON 1191 1168 1135 1112 1081 1055...
  • Page 39 DIP Switch Settings PCBBF139 *MEC960603AN - COOLING Static DIP Switches Tstat Call CFM S1-1 S1-2 S1-3 **OFF OFF OFF 1056 1026 ON OFF OFF ON ON OFF 1056 1026 OFF ON OFF^ 1254 1230 1199 1171 1139 1115 1086 1053 OFF OFF ON 1330 1301...
  • Page 40 DIP Switch Settings PCBBF139 *CEC960403BN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call **OFF OFF OFF 1229 1181 1150 1117 1078 1035 1002 1137 1096 1056 1018 ON OFF OFF 1137 1096 1056 1018 ON ON OFF 1229 1181 1150 1117...
  • Page 41 DIP Switch Settings PCBBF139 *MEC960603BN - COOLING DIP Switches Static S1-1 S1-2 S1-3 Tstat Call 1328 1287 1249 1215 1170 1131 1085 1046 **OFF OFF OFF 1236 1189 1149 1101 1066 1017 ON OFF OFF 1328 1287 1249 1215 1170 1131 1085 1046...
  • Page 42 DIP Switch Settings PCBBF139 CEC960803BN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call **OFF OFF OFF 1111 1068 1025 ON OFF OFF ON ON OFF 1111 1068 1025 OFF ON OFF 1221 1172 1128 1087 1049 1005 OFF OFF ON 1311 1293 1249...
  • Page 43 DIP Switch Settings PCBBF139 *MEC960804CN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call 1185 1121 1058 **OFF OFF OFF 1727 1691 1642 1600 1545 1504 1449 1410 1408 1337 1279 1218 1167 1112 1062 ON OFF OFF^ 1185 1121 1058 1408...
  • Page 44 DIP Switch Settings PCBBF139 *MEC961004CN - COOLING DIP Switches S1-1 S1-2 S1-3 1312 1235 1170 1101 1037 **OFF OFF OFF 1772 1713 1662 1609 1540 1498 1452 1399 1004 ON OFF OFF^ 1312 1235 1170 1101 1037 1004 ON ON OFF 1772 1713 1662...
  • Page 45 DIP Switch Settings PCBBF139 *CEC961005CN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call 1637 1577 1528 1467 1410 1369 1307 1256 **OFF OFF OFF 2069 2009 1978 1932 1923 1876 1834 1773 1477 1422 1364 1301 1244 1190 1135 1078 ON OFF OFF...
  • Page 46 DIP Switch Settings PCBBF139 *MEC961005CN - COOLING Static DIP Switches S1-1 S1-2 S1-3 Tstat Call 1384 1324 1271 1204 1145 1088 1029 **OFF OFF OFF 2008 1963 1944 1916 1876 1839 1801 1759 1438 1366 1309 1254 1163 1133 1077 1013 ON OFF OFF^ 1384...
  • Page 47 DIP Switch Settings PCBBF139 *MEC961205DN - COOLING DIP Switches S1-1 S1-2 S1-3 1399 1327 1259 1185 1118 1051 **OFF OFF OFF 1683 1628 1565 1511 1445 1387 1340 1276 1106 1017 ON OFF OFF^ 1399 1327 1259 1185 1118 1051 1106 1017 ON ON OFF...
  • Page 48: Gas Input Rate Measurement (Natural Gas Only)

    3. Subtract the return air temperature from the supply Gas Input Rate Measurement (Natural Gas Only) air temperature to determine the air temperature rise. Allow adequate time for thermometer readings to stabilize. 4. Adjust temperature rise by adjusting the circulator blower speed.
  • Page 49: Blower Heat Off Delay Timings

    1. Refer to the air flow table for your specific model Heating Mode furnace Call for 1st Stage Heat Only: 2. If a cooling or heat pump condensing unit is being • On a call for first stage heat, the thermostat used in conjunction with this furnace, DIP switches contacts close signaling the control module.
  • Page 50: Cooling Mode

    Safety Circuit Description Cooling Mode Low stage cooling Mode sequence: A number of safety circuits are employed to ensure safe and • On a call for lo cool, the YLO and G thermostat proper furnace operation. These circuits serve to control any contacts close signaling the control module.
  • Page 51: Troubleshooting

    Troubleshooting Limit Fault Codes Electrostatic Discharge (ESD) Precautions If the control detects the high limit circuit open, the RED LED will flash FOUR times and energize the inducer and NOTE: Discharge body’s static electricity before touching indoor blower. unit. An electrostatic discharge can adversely affect electrical components.
  • Page 52: Resetting From Lockout

    the most recent fault to the least recent fault. ERROR” button for more than 5 seconds and less than 10 seconds (the LED will indicate this period by RAPID GREEN Resetting From Lockout FLASH for 5 seconds to 10 seconds). The LED will flash three green flashes when the memory has been cleared.
  • Page 53: Maintenance

    Maintenance register or a side panel external filter rack (upflow only). A media air filter or electronic air cleaner can be used as an al- WARNING ternate filter. Follow the filter sizes given in the Recommended Minimum Filter size table to ensure proper unit performance. HIGH VOLTAGE ! O AVOID PERSONAL INJURY OR DEATH DUE TO To remove filters from an external filter rack in an upright up-...
  • Page 54: Condensate Trap And Drain System

    Repair and Replacement Parts Condensate Trap and Drain System (Qualified Servicer Only) • When ordering any of the listed functional parts, be sure to provide the furnace model, manufacturing, Annually inspect the drain tubes, drain trap, and field-supplied and serial numbers with the order. drain line for proper condensate drainage.
  • Page 55: Troubleshooting Chart

    Troubleshooting Chart Green Amber Symptoms Fault Description Check Cautions LED Code LED Code LED Code •Defective disconnect switch •Determine cause and restore •Confirm electrically safe •Furnace fails to operate •defective door switch • No •None •None •None proper high and low volt power condition before •Control board LED is off 115 volt power •No 24 volt...
  • Page 56 Troubleshooting Chart Associated Green Amber Symptoms Fault Description Check Cautions LED Code LED Code LED Code LED Code •Temperature rise, duct static, •Furnace does not •Four •Open limit circuit, main •Confirm electrically safe gas pressure, burner alignment, operate, four Red •None •None repeating...
  • Page 57: Wiring Diagram

    iring iagram WARNING:DISCONNECT POWER BEFORE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. ECM MTR HARNESS CIRCULATOR BLOWER EQUIPMENT GND FIELD GND FIELD SPLICE SWITCH (TEMP.) IGNITER SWITCH (PRESS.) OVERCURRENT PROT. DEVICE JUNCTION TERMINAL INTERNAL TO INTEGRATED CONTROL PLUG CONNECTION LOW VOLTAGE (24V) LOW VOLTAGE FIELD...
  • Page 58: Special Instructions For Products Installed

    Special Instructions for Products Installed in the State of Massachusetts For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termi- VENT/FLUE nation is less than seven (7) feet above finished grade in the area...
  • Page 59 This Page Intentionally Left Blank...
  • Page 60 Product Registration page. Brand is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved. Our continuing commitment to quality products may mean a change in specifications without notice.