Page 1: Table Of Contents
5151 San Felipe Suite 500 Houston, TX 77056 IOG-2007B www.goodmanmfg.com • www.amana-hac.com 05/15 © 2014 - 2015 Goodman Manufacturing Company, L.P. is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.
Page 2 TABLE OF CONTENTS COMFORTNET™ SYSTEM ........46 PFLOW ODEL NSTALLED ORIZONTALLY ....26 ..........46 LTERNATE VERVIEW ....... 26 DIP SWITCHES ..........47 OUNTERFLOW ODEL NSTALLED ERTICALLY ......... 26 ......... 48 RAIN XITING IRFLOW ONSIDERATIONS ........26 ......... 48 RAIN XITING IGHT OSSIL...
Page 3: Safety Considerations
AFETY ONSIDERATIONS WARNING Adhere to the following warnings and cautions when install- O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER ing, adjusting, altering, servicing, or operating the furnace. INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE To ensure proper installation and operation, thoroughly read REFER TO THIS MANUAL OR ADDITIONAL ASSISTANCE OR this manual for specifics pertaining to the installation and...
Page 4: Shipping Inspection
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 5: Product Description
1. Disconnect all power to the furnace. Do not touch the integrated control module or any wire connected to the control prior to discharging your body’s electrostatic charge to ground. 2. Firmly touch a clean, unpainted, metal surface of the furnaces near the control. Any tools held in a person’s hand during grounding will be discharged.
Page 6: Product Application
Gas Valve Electrical Connection Inlets (Alternate) Gas Line Entrance (Alternate) Coil Front Cover Pressure Tap Pressure Switch(es) Coil Front Cover Drain Port Gas Manifold Drain Line Penetrations Combustion Air Intake Connection Drain Trap Hot Surface Igniter Blower Door Interlock Switch Rollout Limit Inductor (Not All Models) Burners...
Page 7: Location Requirements & Consideratinos
• Damage or repairs due to failure to comply with these requirements is not covered under the warranty. NOTE: The Commonwealth of Massachusetts requires that the following additional requirements must also be met: • Gas furnaces must be installed by a licensed plumber or gas fitter. •...
Page 8: Clearances And Accessibility
• Ensure upflow or horizontal furnaces are not installed directly on carpeting, or any other combustible material. The only combustible material allowed is wood. • A special accessory subbase must be used for upright counterflow unit installations over any combustible material (including wood).
Page 9: Existing Furnace Removal
NOTES: *CVM97* MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS • For servicing or cleaning, a 24” front clearance is required. (INCHES) • Unit connections (electrical, flue and drain) may necessitate greater clearances than the minimum clearances listed above. POSITION* SIDES REAR FRONT BOTTOM FLUE •...
Page 10: Combustion & Ventilation Air Requirements
HERMOSTAT OCATION 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 where the air infiltration rate is known to be less than 0.40 ACH, the method in 9.3.2.2 shall be used. The total required volume shall be the sum of the required volume calculated for all appliances located within the space. Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors, and through combustion air openings sized and located in accordance with 9.3.2.3, are considered a part of the required volume.
Page 12 (1)*Where directly communicating with the outdoors or where communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 in. /4000 Btu/hr (550 min /kW) of total input rating of all appliances in the enclosure. [See Figure A.9.3.3.1(1)(a) and Figure A.9.3.3.1(1)(b).] Figure A.9.3.3.1(1)(b) All Combustion Air Figure A.9.3.3.1(1)(a) All Combustion Air From Outdoors -...
Page 13 9.3.4 Combination Indoor and Outdoor Combustion Air. The use of a combination of indoor and outdoor combustion air shall be in accordance with (1) through (3) (see example calculation in Annex J]: (1) Indoor Openings: Where used, openings connecting the interior spaces shall comply with 9.3.2.3. (2) Outdoor Opening(s) Location.
Page 14: Installation Positions
NSTALLATION OSITIONS A/GMVM97 models may be installed upflow or horizontally with left or right side down. A/GCVM97 models may be installed downflow or horizontally with left or right side down. Do not install this furnace on its back. For upright upflow furnaces, return air ductwork may be attached to the side panel(s) and/ or basepan.
Page 15: Front Cover Pressure Switch Tube
RONT OVER RESSURE WITCH OCATION When an upflow model is installed horizontally with left side down or a counterflow model is installed horizontally with right side down, the front cover pressure switch tube must be re-located to the lower port of the collector box cover. 1.
Page 16: Vent/Flue Pipe & Combustion Air Pipe
& C OMBUSTION WARNING A condensing gas furnace achieves its high level of efficiency by AILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN BODILY extracting almost all of the heat from the products of combustion INJURY OR DEATH AREFULLY READ AND FOLLOW ALL INSTRUCTIONS and cooling them to the point where condensation takes place.
Page 17: Termination Locations
ROPER LUE AND OMBUSTION IPING RACTICES PREFERRED Adhere to these instructions to ensure safe and proper furnace performance. The length, diameter, and number of elbows of the vent/flue pipe and combustion air pipe (when applicable) affects the performance of the furnace and must be carefully sized. All piping must be installed in accordance with local codes and these instructions.
Page 18 DIRECT VENT TERMINAL CLEARANCES Canadian Installations U.S. Installations Canadian Installations U.S. Installations Clearance to service 3 ft. (91 cm). A= Clearance above grade, 12 in. (30 cm) 12 in. (30 cm) regulator vent outlet. veranda, porch, deck or balcony. (See 1.24.6-i(9)b.) J= Clearance to nonmechanical air 6 in.
Page 19: Special Venting Requirements For Installations I N Canada
PECIAL ENTING EQUIREMENTS NSTALLATIONS ANADA All installations in Canada must conform to the requirements of CAN/CSA B149.1 code. All vent system components, including primer and cement, must be listed to ULC S636. The certified pipe and fittings should be clearly marked with the ULC standard “S636”.
Page 20 Insert flange. Cut 2 ½” long. LTERNATE OCATION R 000142 The alternate vent/flue location is the large hole directly in line with the induced draft blower outlet. To use the alternate vent/flue loca- tion on an upflow / horizontal model, refer to the following steps and the “Alternate Vent/Flue Location”...
Page 21 1. Remove screws and combustion air flange from cabinet. 2. Insert cabinet plug in unused combustion air hole. 3. Drill a pilot hole at the cabinet dimple (size dictated by knockout tool used). 4. Use a knockout tool to create a 3" diameter hole 5.
Page 22 Horizontal vent/flue pipe terminations should be as shown in the following fig- ure. Refer to Vent/Flue Pipe and Combustion Air Pipe - Termination Locations 12" MIN. for details concerning location restrictions. The wall penetration should be sealed with silicone caulking material. VENT/FLUE TEE ( OPTIONAL) NOTE: Terminate both pipes in the same pressure zone (same side of...
Page 23: Vent /I
NTAKE ERMINATIONS NSTALLATION OF ULTIPLE IRECT URNACES If more than one direct vent furnace is to be installed vertically through a common roof top, maintain the same minimum clear- 3”MIN 24”MAX ances between the exhaust vent and air intake terminations of adjacent units as with the exhaust vent and air intake terminations 12”...
Page 24: Field Supplied Drain
installed. See following instructions for your model and installation position. NOTE: Both sides of the drain trap must be primed prior to initial furnace start up. IELD UPPLIED RAIN Drain the furnace and air conditioning coil if applicable, in compli- ance with code requirements.
Page 25: Side
PFLOW ODEL NSTALLED ORIZONTALLY WITH IGHT Minimum 5 1/2" clearance is required for the drain trap beneath the furnace. 1. Remove the clamps from both ends of the drain hoses. 2. Remove the two screws holding the drain trap to the blower deck.
Page 26: Drain Exiting Right Side
14. Refer to Field Supplied Drain section for instructions on field Insert flange. Cut 2 ½” long. supplied / installed drain on outlet of furnace trap. R 000142 PFLOW ODEL NSTALLED ORIZONTALLY LTERNATE 1. Install radius end of hose #5 on RF000142 coupling and secure with red clamp.
Page 27: With Right Side Down
OUNTERFLOW ODEL NSTALLED ORIZONTALLY WITH IGHT Minimum 5 1/2" clearance is required for the drain trap beneath the furnace. *Also see Front Cover Pressure Switch Tube Location on page 15. 1. Remove hose clamps and hoses from trap. 2. Remove trap. 3.
Page 28: Electrical Connections
LECTRICAL ONNECTIONS WARNING HIGH VOLTAGE ! IRING ARNESS O AVOID THE RISK OF ELECTRICAL SHOCK WIRING TO The wiring harness is an integral part of this furnace. Wires are THE UNIT MUST BE POLARIZED AND GROUNDED color coded for identification purposes. Refer to the wiring dia- gram for wire routings.
Page 29: Volt Thermostat Wiring
To ensure proper unit grounding, an earth ground wire must be connected between the furnace ground screw located inside the furnace junction box and the electrical service panel. NOTE: Do not use gas piping as an electrical ground. To confirm proper unit grounding, turn off the electrical power and perform the following check.
Page 30: Single -Stage Heating Thermostat
THERMOSTAT IMPORTANT NOTE , DIP O USE A SINGLE STAGE HERMOSTAT SWITCH ON THE FURNACE CONTROL BOARD MUST BE SET TO THE POSITION Furnace Integrated THERMOSTAT Control Module Dehumidistat Furnace Integrated [Optional] Remote Control Module Condensing Unit (Single-Stage Cooling) Dehumidistat Thermostat - Single-Stage Heatingwith Single-Stage Cooling [Optional] Figure 31...
Page 31: Fossil Fuel Applications
OSSIL PPLICATIONS WARNING This furnace can be used in conjunction with a heat pump in a HIGH VOLTAGE ! fossil fuel application. A fossil fuel application refers to a com- O AVOID PERSONAL INJURY OR DEATH DUE TO bined gas furnace and heat pump installation which uses an out- ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER door temperature sensor to determine the most cost efficient means...
Page 32: Gas Supply And Piping
UPPL Y AND IPING Inlet Gas Supply Pressure Natural Gas Minimum: 4.5" w.c. Maximum: 10.0" w.c. The furnace rating plate includes the approved furnace gas input Propane Gas Minimum: 11.0" w.c. Maximum: 13.0" w.c. rating and gas types. The furnace must be equipped to operate on the type of gas applied.
Page 33: Location
• Use black iron or steel pipe and fittings for building piping. Where possible, use new pipe that is properly chamfered, reamed, and free of burrs and chips. If old pipe is used, be sure it is clean and free of rust, scale, burrs, chips, and old pipe joint compound.
Page 34 Manual Shut Off Valve Manual Shut Off Valve (upstream from (upstream from Alternate ground joint pipe union) ground joint Union pipe union) Location Drip Leg Grommet in Plug in Alternate Gas Line Hole Standard Gas Line Hole Burners Plug in Main Gas Line Hole Manifold Valve Drain Trap...
Page 35: Propane Gas Tanks And Piping
NOTE: Never exceed specified pressures for testing. Higher WARNING pressure may damage the gas valve and cause subsequent overfiring, resulting in heat exchanger failure. F THE GAS FURNACE IS INSTALLED IN A BASEMENT AN EXCAVATED AREA OR CONFINED SPACE IT IS STRONGLY RECOMMENDED TO Disconnect this unit and shutoff valve from the gas supply piping CONTACT A PROPANE SUPPLIER TO INSTALL A GAS DETECTING WARNING system before pressure testing the supply piping system with pres-...
Page 36: Circulating Air & Filters
3. Pressure drop in lines between regulators, and between second WARNING stage regulator and the appliance. Pipe size will depend on length of pipe run and total load of all appliances. EVER ALLOW THE PRODUCTS OF COMBUSTION INCLUDING CARBON MONOXIDE TO ENTER THE RETURN DUCT WORK OR CIRCULATION AIR Complete information regarding tank sizing for vaporization, rec- SUPPLY...
Page 37: Pflow Models ]
NOTE: Both readings may be taken simultaneously and read directly on the manometer if so desired. If an air conditioner coil or Electronic Air Cleaner is used in conjunction with the furnace, the readings must also include these components, as shown in the following drawing.
Page 38 Consider installing an air cleaner with deep-pleated media filter at the time of furnace installation. A deep-pleated filter with a MERV rating of 8 (minimum) will often provide better filtration to protect equipment and the air distribution system than a standard 1" filter and often has lower static pressure loss than a 1" filter. Also a deep-pleated filter will typically require less frequent replacement intervals.
Page 39: Bottom Return Air Opening
On upflow units, guide dimples locate the side return cutout locations. Use a straight edge to scribe lines connecting the dimples. Cut out the opening on these lines. NOTE: An undersized opening will cause reduced airflow. Refer to the Filter Sizing Chart to determine filter area requirements. Change filters before occupants take ownership of a new home! PRIGHT NSTALLATIONS...
Page 40: Eating Peration With
• The circulator fan is adjusted to the appropriate CFM, corresponding to the current firing rate. 10 MINS. 8 MINS. Call for 2nd-Stage Heat - Thermostat contacts close R to W1 and IGNITION (80%) After a successful Light Off Sequence and expiration of the Igni- tion Stabilization Period: •...
Page 41: Condensate Drain Trap Priming
• The furnace control board adjusts to the low firing rate. • After 2 minutes, the furnace control board accepts the specific Heat Requested Demand. • If the differential is 2 degrees or less, the heat current demand status will show 50%. •...
Page 42: Gas Supply Pressure Measurement
UPPLY RESSURE EASUREMENT PRESSURE ATMOSPHERE SWITCH PORT Before placing a gas furnace or any gas appliance in operation, verify that CONNECTION the gas piping, gas fittings and all gas components are safe and free of leaks by means of an electronic combustible gas indicator and a gas meter FLOW dial test.
Page 43: Gas Input Rate Measurement
6. Turn on power and close thermostat “R” and “W1” contacts to provide a call Gas Line for low stage heat. 7. Modulating furnaces light at 80% of max input. For natural gas, the Shutoff expected manifold pressure at ignition will be in a range of 1.8” - 2.5” Valve W.C.
Page 44: Temperature Rise
4. Turn ON gas to and relight all other appliances turned off in step 1. Be certain that all appliances are functioning properly and that all pilot burners are operating. EMPERATURE Temperature rise must be within the range specified on the unit rating plate. An incorrect temperature rise may result in condensing in or overheating of the heat exchanger.
Page 45 Example: Cooling Capacity of 30,000 BTU/hr. 100% Low heat 30,000/12,000 = 2.5 Tons High Stage Model Stage Heat CFM for Cool 2. Determine the proper air flow for the cooling system. Most Cool *CFM 2 stage cooling systems are designed to work with air flows between 350 and 450 CFM per ton.
Page 46: Comfortnet™ System
• Profile C ramps up to 85% of the full cooling demand airflow 100% CFM and operates there for approximately 7 1/2 minutes. The motor then steps up to the full demand airflow. Profile C also has a one (1) minute 100% OFF delay. Figure 52C •...
Page 47: Dip Switches
DIP S WITCHES...
Page 48: Airflow Considerations
The indoor unit, outdoor unit and thermostat comprising a ComfortNet System Operating System Airflow Demand Source system “communicate” digitally with one another, creating a two- Mode way communications path. The thermostat still sends commands to Cooling Air Conditioner the indoor and outdoor units. However, the thermostat may also request and receive information from both the indoor and outdoor Air Conditioner + Heating...
Page 49: Ctk0* Wiring
CTK0* W IRING CTK0* Thermostat NOTE: Refer to Electrical Connections for 115 volt line connections to the furnace. ComfortNet Compatible Furnace Integrated NOTE: A removable plug connector is provided with the control Control Module to make thermostat wire connections. This plug may be removed, 40VA Transformer ComfortNet Compatible wire connections made to the plug, and replaced.
Page 50: Network Troubleshooting
IAGNOSTICS Accessing the furnace’s diagnostics menu provides ready access to the last ten faults detected by the furnace. Faults are stored most recent to least recent. Any consecutively repeated fault is stored a maximum of three times. Example: A clogged return air filter causes the furnace limit to trip repeatedly.
Page 51: Normal Sequence Of Operation
AULT LEAR EQUENCE • Only allowed in standby mode, while display is showing ON. • Hold fault recall push-button for 5-10 seconds (until display starts flashing “—”) and then release. • All faults in the history will have been cleared, and display returns to ON. •...
Page 52: Operational Checks
• Circulator blower is energized on the appropriate cool speed at the level and time determined by the selected ramping profile. Electronic air cleaner terminal is energized with circulator blower. • Furnace circulator blower and outdoor cooling unit run their appropriate speeds, integrated control module monitors safety circuits continuously.
Page 53: Troubleshooting
OLLOUT IMIT The rollout limit controls are mounted on the burner/manifold assembly and monitor the burner flame. They are normally-closed (electrically), manual-reset sensors. These limits guard against burner flames not being properly drawn into the heat exchanger. RESSURE WITCHES The pressure switches are normally-open (closed during operation) negative air pressure-activated switches. They monitor the airflow (combustion air and flue products) through the heat exchanger via pressure taps located on the induced draft blower and the coil front cover.
Page 54: Maintenance
AINTENANCE WARNING NNUAL NSPECTION O AVOID ELECTRICAL SHOCK INJURY OR DEATH DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY The furnace should be inspected by a qualified installer, or service MAINTENANCE F YOU MUST HANDLE THE IGNITER agency at least once per year. This check should be performed at HANDLE WITH CARE OUCHING THE IGNITER ELEMENT the beginning of the heating season.
Page 55: Nstallation
NDUCED RAFT AND IRCULATOR LOWERS The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No further lubrication is required. Check openings on motor housing for accumulation of dust which may cause overheating. Clean as necessary.
Page 56: Troubleshooting Codes
ROUBLESHOOTING ODES...
Page 57 ROUBLESHOOTING ODES...
Page 58 ROUBLESHOOTING ODES...
Page 59 ROUBLESHOOTING ODES...
Page 60 ROUBLESHOOTING ODES...
Page 61 TATUS ODES NO POWER NORMAL OPERATION INDICATES AIRFLOW, FOLLOWED BY CFM BLOWER MOTOR NOT RUNNING BLOWER COMMUNICATION ERROR BLOWER HP MIS-MATCH BLOWER MOTOR OPERATING IN POWER, TEMPERATURE, OR SPEED LIMIT BLOWER MOTOR CURRENT TRIP OR LOST ROTOR BLOWER MOTOR LOCKED ROTOR BLOWER OVER/UNDER VOLTAGE TRIP OR OVER TEMPERATURE TRIP INCOMPLETE PARAMETERS SENT TO MOTOR LOW INDOOR AIRFLOW...
Page 62: Wiring Diagram
*MVM97_A*, *CVM97_A* IRING IAGRAM DOOR SWITCH JUNCTION BOX INDUCTOR COIL (ON SOME MODELS) INDOOR CIRCULATOR BLWR LINE NEUTRAL ELECTRONIC AIR CLEANER OPTIONAL 3 ID BLWR NEUTRAL HUMIDIFIER OPTIONAL NEUTRAL HOT SURFACE IGNITER LINE NEUTRAL DIAGNOSTIC LED’S 40 VA FUSE 3A TRANSFORMER TR (5) 24 VAC...
Page 63: Special Instructions For Products Installed In The State Of Massachusetts
PECIAL NSTRUCTIONS FOR RODUCTS NSTALLED IN THE TATE OF ASSACHUSETTS 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 VENT/FLUE the Commonwealth and where the side wall exhaust vent termi- nation is less than seven (7) feet above finished grade in the area...
Page 64 NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE. Goodman Manufacturing Company, L.P. 5151 San Felipe Suite 500 Houston, TX 77056 www.goodmanmfg.com • www.amana-hac.com © 2014 - 2015 Goodman Manufacturing Company, L.P.

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