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*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)
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 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.
IOG-2011U
02/2022
19001 Kermier Rd. Waller, Tx 77484
www.goodmanmfg.com • www.amana-hac.com
© 2014-2022 Goodman Manufacturing Company, L.P
is a registered trademark of Maytag Corporation or its related companies and is used under license.
*NOTE: Please contact your distributor or our website
for the applicable Specification Sheet referred to in this
manual.
Only personnel that have been trained to install, adjust,
service or repair(hereinafter, "service") the equipment
specified in this manual should service the equipment.
The manufacturer will not be responsible for any injury
or property damage arising from improper service or
service procedures. If you service this unit, you assume
responsibility for any injury or property damage which
may result. In addition, in jurisdictions that require one
or more licenses to service the equipment specified in
this manual, only licensed personnel should service the
equipment. Improper installation, adjustment, servicing
or repair of the equipment specified in this manual,
or attempting to install, adjust, service or repair the
equipment specified in this manual without proper training
may result in product damage, property damage, personal
injury or death.
Do not bypass safety devices.
90% HEX
All rights reserved.
RECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION.
WARNING
WARNING
DO NOT LIFT
PRODUCT USING
HEAT EXCHANGER
.
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Table of Contents
Troubleshooting
Related Manuals for Amana MEC96 Series
Summary of Contents for Amana MEC96 Series
- Page 1 DO NOT LIFT PRODUCT USING HEAT EXCHANGER 19001 Kermier Rd. Waller, Tx 77484 www.goodmanmfg.com • www.amana-hac.com © 2014-2022 Goodman Manufacturing Company, L.P IOG-2011U is a registered trademark of Maytag Corporation or its related companies and is used under license. 02/2022...
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Page 2: Table Of Contents
TABLE OF CONTENTS SAFETY CONSIDERATIONS Adhere to the following warnings and cautions when Safety Considerations ..........2 installing, adjusting, altering, servicing, or operating the Product Description ............4 furnace. To ensure proper installation and operation, Product Application ............4 thoroughly read this manual for specifics pertaining to the Location Requirements &... - Page 3 A gas-fired furnace for installation in a residential Shipping Inspection garage must be installed as specified in the LOCATION All units are securely packed in shipping containers REQUIREMENTS AND CONSIDERATIONS section of tested according to International Safe Transit Association this manual. specifications.
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Page 4: Product Description
1. Disconnect all power to the furnace. Do not touch This furnace can be used in the following non-industrial the integrated control module or any wire connected commercial applications: to the control prior to discharging your body’s Schools, Office buildings, Churches, Retail stores, electrostatic charge to ground. -
Page 5: Location Requirements & Considerations
LOCATION REQUIREMENTS • The furnace heat exchanger, components, duct system, air filters and evaporator coils are thoroughly & CONSIDERATIONS cleaned following final construction clean up by a qualified person. Follow the instructions listed below and the guidelines • All furnace operating conditions (including ignition, provided in the Combustion and Ventilation Air input rate, temperature rise and venting) are verified Requirements section when selecting a furnace location. - Page 6 • Exposure to contaminated combustion air will result • Counterflow Installation over a noncombustible floor. in safety and performance-related problems. Do Before setting the furnace over the plenum opening, not install the furnace where the combustion air is ensure the surface around the opening is smooth exposed to the following substances: and level.
- Page 7 Installations must adhere to the clearances to combustible materials to which this furnace has been design certified. WARNING The minimum clearance information for this furnace is provided on the unit’s clearance label. These clearances CARBON MONOXIDE POISONING HAZARD must be permanently maintained. Clearances must also Failure to follow the steps outlined below for each appliance connected to the venting system being placed into accommodate an installation’s gas, electrical, and drain...
- Page 8 Existing Furnace Removal AVERTISSEMENT NOTE: When an existing furnace is removed from a venting system serving other appliances, the venting system may be too large to properly vent the remaining RISQUE D’INTOXICATION AU MONOXYDE DE CARBONE Si les étapes décrites ci-dessous ne sont pas suivies pour attached appliances.
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Page 9: Combustion & Ventilation Requirements
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 10: Horizontal Applications & Considerations
*MEC96 models may be installed upflow or horizontally Drain Trap and Lines with left or right side down. *CEC96 models may be In horizontal applications the condensate drain trap is installed down flow or horizontally with left or right side secured to the furnace side panel, suspending it below the down. - Page 11 High altitude installations may require both a pressure This manual will refer to the pipe that discharges products switch and an orifice/spring change. These changes are of combustion to the outdoors as the “vent” pipe or necessary to compensate for the natural reduction in “flue”...
- Page 12 VENTING MATERIAL REQUIREMENTS WARNING ASTM STANDARD To avoid bodily injury, fire or explosion, solvent cements SCHEDULE 40 PIPE D1785 must be kept away from all ignition sources (i.e., sparks, open SCHEDULE 40 CELLULAR CORE PIPE F891 flames, and excessive heat) as they are combustible liquids. SDR 21 OR 26 PIPE D2241 Avoid breathing cement vapors or contact with skin and/or eyes.
- Page 13 Termination Locations Non-Direct Vent & Direct Vent Vent/Flue Terminations Non-Direct Vent Vent/Flue Termination No Terminations Above Walkway Grade or Highest Anticipated Snow Level Non-Direct Vent Figure 9 Vent/Flue Termination Forced Air Inlet Direct Vent Insert flange. Cut 2 ½” long. Vent/Flue Termination See Figure 8 Vent Clearances...
- Page 14 *MEC96/*CEC96 Direct Vent (2 - Pipe) and Non-Direct Vent (1- Pipe) Maximum Allowable Length of Vent/Flue Pipe Pipe Size Number of Elbows MODEL (in.) *M EC960303AN & *M EC960403AN *M EC960603AN *M EC960302BN & *M EC960402BN *M EC960603BN^ *M EC960803BN *M EC960804CN *M EC961005CN *M EC961205DN...
- Page 15 Vent/Flue Pipe Terminations Combustion Air Intake Options (See Figure 12) The RF000142 coupling (Figure 8) can be secured directly 12" MIN. to the furnace intake coupling if condensation is a concern. If the RF000142 is used on the combustion air inlet, it must VENT/FLUE TEE ( OPTIONAL) be installed with the arrow pointing up.
- Page 16 TEE (OPTIONAL) VENT/FLUE COMBUSTION AIR INTAKE 12” MIN (OPTIONAL) HEIGHT DIFFERENCE BETWEEN *Not required for INTAKE AND VENT single pipe installation DISTANCE BETWEEN COMBUSTION VENT AND GRADE AIR INTAKE. DISTANCE BETWEEN COMBUSTION AIR INTAKE AND GRADE 12” MIN TO ROOF OR HIGHEST ANTICIPATED SNOW LEVEL Figure 16 Figure 19...
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Page 17: Condensate Drain Lines & Drain Trap
CONDENSATE DRAIN LINES & DRAIN Vent/Intake Terminations For Installation of Multiple Direct Vent Furnaces TRAP If more than one direct vent furnace is to be installed vertically through a common roof top, maintain the same A condensing gas furnace achieves its high level minimum clearances between the exhaust vent and air of efficiency by extracting heat from the products of intake terminations of adjacent units as with the exhaust... - Page 18 WARNING To avoid risk of injury, electrical shock or death, the furnace must be electrically grounded in accordance with local codes or, in their absence, with the latest edition of the National Electrical Code. 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.
- Page 19 6. For models DM96VE0303AN, DM96VE0403AN and DM96VE0603AN; 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. Secure it to the barbed fitting in the elbow with a red clamp.
- Page 20 7. Unused vent-drain elbow drip leg port must be 4. Locate hose #5 and cut 3” from the non-grommet end. Discard the section without the grommet. sealed to prevent flue gases from escaping. Insert 5. Insert the cut end of tube #5 through the lower cabinet the rubber plug removed in Step 6 into the unused elbow drain port;...
- Page 21 Counterflow Model Installed Horizontally with Right Side Down (See Figure 32) Minimum 5 1/2” clearance is required for the drain trap beneath the furnace. NOTE: For horizontal installations, some of the required hoses are found in the factory-installed hose assemblies. Remove the hose clamps to obtain the respective hoses needed for installation, and install per the following directions.
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Page 22: Electrical Connections
Counterflow Model Installed Horizontally with Hose #4 Left Side Down (See Figure 33) *Also see Front Cover Pressure Switch Tube Location on page 11. Minimum 5 1/2” clearance is required for the drain trap beneath the furnace. NOTE: For horizontal installations, some of the required hoses are found in the factory-installed hose assemblies. - Page 23 115 Volt Line Connections WARNING Before proceeding with electrical connections, ensure that the supply voltage, frequency, and phase correspond to that specified on the unit rating plate. Power supply to HIGH VOLTAGE the furnace must be NEC Class 1, and must comply with To avoid the risk of injury, electrical shock or death, the furnace must be electrically all applicable codes.
- Page 24 PCBBF139 CONTROL BOARD DIP SWITCH SWITCH PURPOSE FUNCTION GROUP Furnace Integrated 2 STAGE STAT Control Module 1 STG STAT 10 min delay Thermostat Setup 1 STG STAT 20 min delay Remote Condensing Unit (Single-Stage Cooling) AUTO OFF* ON* Thermostat - Single -Stage Heating with Single-Stage Cooling Heating NOTE: To apply a single-stage Heating Thermostat, the Fan Off...
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Page 25: Gas Supply And Piping
Room Furnace 1 Furnace 2 Thermostat WARNING HIGH VOLTAGE To avoid personal injury or death due to electrical shock, disconnect electrical power before servicing or changing any electrical wiring. Figure 37 115 Volt Line Connection of Accessories (Humidifier and Electronic Air Cleaner) The furnace integrated control module is equipped with line voltage accessory terminals for controlling power to an optional field-supplied humidifier and/or electronic air... - Page 26 High Altitude Derate NOTE: If converting to LP gas, it is recommended When this furnace is installed at high altitude, the that an LPLP0* kit also be installed. The use of appropriate High Altitude orifice kit must be applied. This is this kit will prevent the furnace from firing when the LP gas supply pressure is too low to support required due to the natural reduction in the density of both...
- Page 27 • Use black iron or steel pipe and fittings for building A semi-rigid connector to the gas piping can be used piping. Where possible, use new pipe that is properly outside the cabinet per local codes. From the elbow, the chamfered, reamed, and free of burrs and chips.
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Page 28: Circulating Air & Filters
CIRCULATING AIR & FILTERS Propane Gas Tanks and Piping WARNING Duct work - Air Flow Duct systems and register sizes must be properly designed If the gas furnace is installed in a basement, an excavated for the CFM and external static pressure rat ing of the area or confined space, it is strongly recommended to contact a propane supplier to install a gas detecting furnace. - Page 29 2. Measure the static pressure of the supply duct. The temperature rise of the furnace must be within the (Positive Pressure) temperature rise range listed on the furnace rating plate. 3. The difference between the two numbers is .4” w.c. SUPPLY EXAMPLE: static reading from return duct = -.1”...
- Page 30 Filters - Read This Section Before Installing WARNING The Return Air Duct work Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship Edges of sheet metal hole may be sharp. Use gloves as a precaution when removing sheet metal from return air with this furnace, but must be provided, sized and installed openings.
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Page 31: Startup Procedure & Adjustment
W.C. In some installations the minimum filter size required Furnace Operation will not lend itself to a filter installation on the side of the Purge gas lines of air prior to startup. Be sure not purge furnace. The installation of a centrally installed air cleaner lines into an enclosed burner compartment. - Page 32 fitting installed in the gas piping drip leg. The supply 4. Attach a hose and manometer to the outlet pressure pressure must be measured with the burners operating. tap (White-Rodgers valve). To measure the gas supply pressure, use the following 5.
- Page 33 Gas Input Rate Measurement (Natural Gas Only) 3. Subtract the return air temperature from the supply air temperature to determine the air temperature rise. INLET GAS SUPPLY PRESSURE Allow adequate time for thermometer readings to Natural Gas Minimum: 4.5" w.c. Maximum: 10.0"...
- Page 34 Blower Heat Off Delay Timings 6. Continuous fan input (G) has lowest priority. The integrated control module provides a selectable heat a. Refer to the air flow table for your specific model off delay function. The heat off delay period may be set to furnace 90, 120, 150, 180 seconds using the DIP switches provided b.
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Page 35: Dip Switch Settings
DIP SWITCH SETTINGS PCBBF139 *CEC960403BN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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... - Page 36 DIP SWITCH SETTINGS PCBBF139 *CEC960603BN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 1167 1122 1074 1029 OFF OFF OFF* 1252 1206 1164 1118 1077 1034 ON OFF OFF 1167 1122 1074 1029 ON ON OFF 1252 1206 1164...
- Page 37 DIP SWITCH SETTINGS PCBBF139 *CEC960803BN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM OFF OFF OFF* 1130 1085 1040 ON OFF OFF ON ON OFF 1130 1085 1040 OFF ON OFF 1221 1176 1136 1094 1050 1013 OFF OFF ON 1323...
- Page 38 DIP SWITCH SETTINGS PCBBF139 *CEC961005CN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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...
- Page 39 DIP SWITCH SETTINGS PCBBF139 *MEC960303AN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM OFF OFF OFF* 1070 1040 1005 ON OFF OFF ON ON OFF 1070 1040 1005 OFF ON OFF^ OFF OFF ON^ OFF ON ON^ ON OFF ON 1070 1040...
- Page 40 DIP SWITCH SETTINGS PCBBF139 *MEC960403AN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL OFF OFF OFF* 1191 1168 1135 1112 1081 1055 1024 ON OFF OFF ON ON OFF 1191 1168 1135 1112 1081 1055 1024 OFF ON OFF^ OFF OFF ON 1070 1040...
- Page 41 DIP SWITCH SETTINGS PCBBF139 *MEC960603AN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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...
- Page 42 DIP SWITCH SETTINGS PCBBF139 *MEC960603BN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 1332 1291 1252 1218 1173 1134 1088 1049 OFF OFF OFF* 1240 1194 1153 1104 1069 1019 ON OFF OFF 1332 1291 1252 1218 1173 1134...
- Page 43 DIP SWITCH SETTINGS PCBBF139 *MEC960803BN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM OFF OFF OFF* 1226 1177 1133 1091 1052 1008 ON OFF OFF ON ON OFF 1226 1177 1133 1091 1052 1008 OFF ON OFF 1123 1078 1035...
- Page 44 DIP SWITCH SETTINGS PCBBF139 *MEC960804CN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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...
- Page 45 DIP SWITCH SETTINGS PCBBF139 *MEC961004CN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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...
- Page 46 DIP SWITCH SETTINGS PCBBF139 *MEC961005CN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL CFM 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...
- Page 47 DIP SWITCH SETTINGS PCBBF139 *MEC961205DN - COOLING DIP Switches STATIC S1-1 S1-2 S1-3 T STAT CALL 1399 1327 1259 1185 1119 1051 OFF OFF OFF* 1683 1628 1565 1511 1445 1387 1340 1276 1106 1017 ON OFF OFF^ 1399 1327 1259 1185 1119...
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Page 48: Normal Sequence Of Operation
NORMAL SEQUENCE OF OPERATION 2nd Stage Satisfied, First Stage Still Calling: • When the second stage of the thermostat is satisfied, the inducer blower is reduced to low speed which de- Power Up energizes the second stage of the gas valve. •... -
Page 49: Operational Checks
OPERATIONAL CHECKS Pressure Switches The pressure switches are normally-open (closed during operation) negative air pressure-activated switches. They The burner flames should be inspected with the burner monitor the airflow (combustion air and flue products) compartment door installed. Flames should be stable, through the heat exchanger via pressure taps located on quiet, soft, and blue (dust may cause orange tips but the induced draft blower and the coil front cover. - Page 50 In an open limit condition the red LED will flash as described above but the error code will not be stored in memory until the limit resets or until 15 minutes has elapsed. So if the limit resets in less than 5 minutes a four flash code will be stored.
- Page 51 Fault Code Reset Resetting From Lockout To clear the fault code memory, push and hold the “LAST Furnace lockout results when a furnace is unable to ERROR” button for more than 5 seconds and less than achieve ignition after three attempts during a single call 10 seconds (the LED will indicate this period by RAPID for heat.
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Page 52: Maintenance
MAINTENANCE CAUTION WARNING To ensure proper unit performance, adhere to the filter sizes given in the recommended Minimum Filter Size Table or Specification Sheet applicable to your model. HIGH VOLTAGE To avoid personal injury or death due to electrical shock, disconnect electrical Filter Removal power before performing any service or Depending on the installation, differing filter arrangements... -
Page 53: Before Leaving An Installation
Burners Flue Passages (Qualified Servicer Only) Visually inspect the burner flames periodically during the The heat exchanger flue passageways should be inspected heating season. Turn on the furnace at the thermostat and at the beginning of each heating season. allow several minutes for flames to stabilize, since any dislodged dust will alter the flames normal appearance. -
Page 54: 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 55 TROUBLESHOOTING CHART Green Amber Symptoms Fault Description Check Cautions 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 limit, aux limit, or roll out condition before orifice plate position, wiring to...
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Page 56: Wiring Diagram
WIRING DIAGRAM 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 57: Special Instructions For Products Installed In The State Of Massachusetts
Special Instructions for Products Installed in the State of Massachusetts For all side wall horizontally vented gas fueled equipment EXEMPTIONS installed in every dwelling, building or structure used in whole The following equipment is exempt from 248 CMR 5.08(2)(a)1 or in part for residential purposes, including those owned or through 4: operated by the Commonwealth and where the side wall exhaust 1. -
Page 58: Start-Up Checklist
START-UP CHECKLIST Furnace Model Number Serial Number ELECTRICAL Line Voltage (Measure L1 to N and N to Ground Voltage) L - N N - G Secondary Voltage (Measure Transformer Output Voltage) R - C Blower Amps BLOWER EXTERNAL STATIC PRESSURE Return Air Static Pressure IN. - Page 59 THIS PAGE IS LEFT INTENTIONALLY BLANK.
- Page 60 Please fill out the feedback form on one of the following links: Goodman Brand Products: (http://www.goodmanmfg.com/about/contact-us). ® Amana Brand Products: (http://www.amana-hac.com/about-us/contact-us). ® You can also scan the QR code on the right for the product brand you purchased to be directed to the feedback page. GOODMAN BRAND ®...