Goodman MVS80 Ultra Low NOx Gas Variable Speed Furnace Instruction Manual

Goodman MVS80 Ultra Low NOx Gas Variable Speed Furnace

Product Information

MVS80 Ultra Low NOx Gas Variable Speed Furnace

The MVS80 Ultra Low NOx Gas Variable Speed Furnace is a high-quality heating system manufactured by Goodman Manufacturing Company, L.P. It is designed to provide efficient and reliable heating while minimizing the emission of nitrogen oxides (NOx) for environmental sustainability.

The furnace is equipped with a variable speed blower motor, allowing it to adjust its airflow according to the heating requirements, resulting in improved energy efficiency and enhanced comfort. The furnace also incorporates safety features to ensure safe operation and compliance with industry standards. The intentional radiator component of the furnace has been certified by the Federal Communications Commission (FCC) under FCC ID QOQBGM111. It meets the applicable technical specifications of Industry Canada and is identified by IC 5123A-BGM111. The manufacturer of the intentional radiator is Silicon Laboratories Finland Oy, which can be contacted at 617-951-0200 or through their website at www.silabs.com.

The MVS80 Ultra Low NOx Gas Variable Speed Furnace complies with Part 15 of the FCC’s Rules, ensuring that it does not cause harmful interference and accepts any interference received. It also complies with FCC radiation exposure limits to ensure user safety. For more information regarding compliance or assistance, contact Goodman Manufacturing Company, L.P. at 713-861-2500 or visit their website at www.GoodmanMFG.com. Please note that this equipment is a registered trademark of Maytag Corporation or its related companies and is used under license. All rights reserved.

Product Usage Instructions

Before proceeding with the installation and use of the MVS80 Ultra Low NOx Gas Variable Speed Furnace, it is essential to thoroughly read and understand this Instruction Manual. Familiarize yourself with the safety precautions and warnings provided to ensure safe installation and usage of the product.

Installation:
Follow the installation instructions provided in the manual. Ensure that all safety devices are properly installed and not bypassed. If there are any conflicts between existing practices and the content of this manual, prioritize the precautions listed in this manual.

Safety Precautions:
Always prioritize safety when installing or repairing the furnace. Use common sense and follow good safety practices. If unsure, consult specific safety practices recommended by dealers or professionals in the field.

Compliance with Regulations:
The intentional radiator component of the furnace has been certified by FCC and Industry Canada. To ensure compliance, maintain a minimum distance of 20 cm between human proximity and the antenna during normal operations.

User Authority:
Any changes or modifications not expressly approved by the party responsible for compliance may void the user’s authority to operate the equipment. Avoid making unauthorized alterations to the furnace. For further assistance or information regarding the MVS80 Ultra Low NOx Gas Variable Speed Furnace, refer to the distributor or visit the manufacturer’s website.

CATEGORY
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.

ATTENTION INSTALLING PERSONNEL
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.

IRECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION

NOTE : Please contact your distributor or our website listed below for the applicable Specification Sheet referred to in this manual.

WARNING
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.

WARNING: DO NOT BYPASS SAFETY DEVICES

This device, which was assembled by Goodman Manufacturing Company, L.P., contains a component that is classified as an intentional radiator. This intentional radiator has been certified by the FCC: FCC ID QOQBGM111. And this international radiator has an Industry Canada ID: IC 5123A-BGM111. And this device meets the applicable Industry Canada technical specifications. The manufacturer of the intentional radiator (model no. BGM111) is Silicon Laboratories Finland Oy, which can be contacted by calling 617-951-0200. (www.silabs.com) This device complies with Part 15 of the FCC’s Rules. Operation of this device is subject to two conditions:

1. This device may not cause harmful interference; and
2. This device must accept any interference received, including interference that may cause undesirable operation.

And this device meets the applicable Industry Canada technical specification. The FCC responsible party is Goodman Manufacturing Company, L.P. , and may be contacted by calling 713-861-2500, or at 19001 Kermier Rd., Waller TX 77484. (www.GoodmanMFG.com)

This equipment complies with FCC radiation exposure limits. To ensure compliance, human proximity to the antenna shall not be less than 20 cm during normal operations.

NOTE : This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/ TV technician for help.

WARNING: CHANGES OR MODIFICATIONS NOT EXPRESSLY APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.

Safety Considerations

IMPORTANT NOTE: This unit is designed to meet the NOX requirement of 14Ng/J maximum as required by the South Coast Air Quality Management District and the San Joaquin Valley Air Pollution Control District, both in the State of California, and is intended for installation in those districts only. This unit has a Control System that compensates for certain installation and environmental conditions.

This unit must:

• Be properly installed, operated, and maintained per the instructions.
• Be serviced only by properly trained Service Technicians.

This unit is not approved for use with gasses other than Natural Gas. Units that are not installed, maintained, or operated properly may result in “noisy” operation during the Heating Cycle. If this unit is making unusual or objectionable noises during the Heating Cycle, turn the heat off at the thermostat and contact a qualified Service organization right away. Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. To ensure proper installation and operation, thoroughly read this manual for specifics pertaining to the installation and application of this product.

This furnace is manufactured for use with natural gas only. Install 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. Combustion products must be discharged to the outdoors. Connect this furnace to an approved vent system only, as specified in CATEGORY 1 VENTING section of this manual. Never 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 GAS SUPPLY AND PIPING section of this manual.

Always install a furnace to operate within the furnace’s intended temperature- rise range with a duct system which has external static pressure within the allowable range, as specified on the furnace rating plate and OPERATIONAL CHECKS section of these instructions. When a furnace is installed so that supply ducts carry air circulated 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 the space containing the furnace.

A gas-fired furnace for installation in a residential garage must be installed as specified in the LOCATION REQUIREMENTS AND CONSIDERATIONS section of this manual. This 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.

WARNING: To prevent personal injury or death due to improper installation, adjustment, alteration, service or maintenance, refer to this manual. For additional assistance or information, consult a qualified installer, servicer agency or the gas supplier.

WARNING : FIRE OR EXPLOSION HAZARD

Failure to follow the safety warnings exactly could result in serious injury, death or property damage.Never 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. A fire or explosion may result causing property damage, personal injury or loss of life.

WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life. do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS:

• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you cannot reach your gas supplier, call the fire department.
  • Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WARNING
Heating unit should not be utilized without reasonable, routine, inspection, maintenance and supervision. If the building in which any such device is located will be vacant, care should be taken that such device is routinely inspected, maintained and monitored. In the event that the building maybe exposed to freezing temperatures and will be vacant, all water-bearing pipes should be drained, the building should be properly winterized, and the water source closed. In the event that the building may be exposed to freezing temperatures and will be vacant, any hydronic coil units should be drained as well and, in such case, alternative heat sources should be utilized.

WARNING
Should overheating occur or the gas supply fail to shut off, turn off the manual gas shutoff valve external to the furnace before turning off the electrical supply.

WARNING
Possible property damage, personal injury or death due to fire, explosion, smoke, soot, condensation, electrical shock or carbon monoxide may result from improper installation, repair operation, or maintenance of this product

WARNING
To prevent personal injury or death due to asphyxiation, this furnace must be Category I vented. Do not vent using Category III venting. Provisions must be made for venting combustion products outdoors through a proper venting system. The length of flue pipe could be a limiting factor in locating the furnace

WARNING: CARBON MONOXIDE POISONING HAZARD

Failure To Follow The Steps Outlined Below For Each Appliance Connected To The Venting System Being Placed Into Operation Could Result In Carbon Monoxide Poisoning Or Death. The Following Steps Shall Be Followed For Each Appliance Connected To The Venting System Being Placed Into Operation, While All Other Appliances Connected To The Venting System Are Not In Operation:

1. Seal Any Unused Openings In The Venting System.
2. Inspect The Venting System For Proper Size And Horizontal Pitch, As Required In The National Fuel Gas Code, Ansi Z223.1/nfpa 54 Or The Natural Gas And Propane Installation Code, Csa B149.1 And These Instructions. Determine That There Is No Blockage Or Restriction, Leakage, Corrosion And Other Deficiencies Which Could Cause An Unsafe Condition.
3. As Far As Practical, Close All Building Doors And Windows And All Doors Between The Space In Which The Appliance(s) Connected To The Venting System Are Located And Other Spaces Of The Building.
4. Close Fireplace Dampers.
5. Turn On Clothes Dryers And Any Appliance Not Connected To The Venting System. Turn On Any Exhaust Fans, Such As Range Hoods And Bathroom Exhausts, So They Are Operating At Maximum Speed. Do Not Operate A Summer Exhaust Fan.
6. Follow The Lighting Instructions. Place The Appliance Being Inspected Into Operation. Adjust The Thermostat So Appliance Is Operating Continuously.7) Test For Spillage From Draft Hood Equipped Appliances At The Draft Hood Relief Opening After 5 Minutes Of Main Burner Operation. Use The Flame Of A Match Or Candle.
7. If Improper Venting Is Observed During Any Of The Above Tests, The Venting System Must Be Corrected In Accordance With The National Fuel Gas Code, Ansi Z223.1/nfpa 54 And/or Natural Gas And Propane Installation Code, Csa B149.1. 9) After It Has Been Determined That Each Appliance Connected To The Venting System Properly Vents When Tested As Outlined Above, Return Doors, Windows, Exhaust Fans, Fireplace Dampers And Any Other Gas-fired Burning Appliance To Their Previous Conditions Of Use.

DANGER PELIGRO: CARBON MONOXIDE POISONING HAZARD

Special Warning for Installation of Furnace or Air Handling Units in Enclosed Areas such as Garages, Utility Rooms or Parking Areas Carbon monoxide producing devices (such as automobiles, space heater, gas water heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility rooms or parking areas because of the danger of carbon monoxide (CO) poisoning resulting from the exhaust emissions. If a furnace or air handler is installed in an enclosed area such as a garage, utility room or parking area and a carbon monoxide producing device is operated therein, there must be adequate, direct outside ventilation.

This ventilation is necessary to avoid the danger of CO poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. Carbon monoxide emissions can be (re)circulated throughout the structure if the furnace or air handler is operating in any mode. CO can cause serious illness including permanent brain damage or death.

Additional Safety Considerations

• This furnace is approved for Category I Venting only.
• Provisions must be made for venting combustion products outdoors through a proper venting system. The length of flue pipe could be a limiting factor in locating the furnace.

Shipping Inspection

All units are securely packed in shipping containers tested according to International Safe Transit Association specifications. The carton must be checked upon arrival for external damage. If damage is found, a request for inspection by carrier’s agent must be made in writing immediately. The furnace must be carefully inspected on arrival for damage and bolts or screws which may have come loose in transit. In the event of damage the consignee should:

1. Make a notation on delivery receipt of any visible damage to shipment or container.
2. Notify carrier promptly and request an inspection.
3. With concealed damage, carrier must be notified as soon as possible – preferably within five days.
4. File the claim with the following support documents within a nine month statute of limitations.
   • Original or certified copy of the Bill of Lading, or indemnity bond.
   • Original paid freight bill or indemnity in lieu thereof.
   • Original or certified copy of the invoice, showing trade and other discounts or reductions.
   • Copy of the inspection report issued by carrier’s representative at the time damage is reported to carrier.

The carrier is responsible for making prompt inspection of damage and for a thorough investigation of each claim. The distributor or manufacturer will not accept claims from dealers for transportation damage. Keep this literature in a safe place for future reference.

Electrostatic Discharge (ESD) Precautions

NOTE : Discharge your body’s static electricity before touching unit. An electrostatic discharge can adversely affect electrical components. Use the following precautions during furnace installation and servicing to protect the integrated control module from damage. By putting the furnace, the control, and the person at the same electrostatic potential, these steps will help avoidexposing the integrated control module to electrostatic discharge. This procedure is applicable to both installed and non-installed (ungrounded) furnaces.

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.
3. Service integrated control module or connecting wiring following the discharge process in step 2. Use caution not to recharge your body with static electricity; (i.e., do not move or shuffle your feet, do not touch ungrounded objects, etc.). If you come in contact with an ungrounded object, repeat step 2 before touching control or wires.
4. Discharge your body to ground before removing a new control from its container. Follow steps 1 through 3 if installing the control on a furnace. Return any old or new controls to their containers before touching any ungrounded object.

To The Installer
Before installing this unit, please read this manual thoroughly to familiarize yourself with specific items which must be adhered to, including but not limited to: unit maximum external static pressure, gas pressures, BTU input rating, proper electrical connections, circulating air temperature rise, minimum or maximum CFM, and motor speed connections, and venting. These furnaces are designed for Category I venting only.

WARNING: To prevent property damage, personal injury or death due to fire, do not install this furnace in a mobile home, trailer, or recreational vehicle.

Product Application

This furnace is primarily designed for residential home-heating applications. It is NOT designed or certified for use in mobile homes, trailers or recreational vehicles. Neither is it designed or certified for outdoor applications. The furnace must be installed indoors (i.e., attic space, crawl space, or garage area provided the garage area is enclosed with an operating door). This furnace can be used in the following non-industrial commercial applications: Schools, Office buildings, Churches, Retail stores, Nursing homes, Hotels/motels, Common or office areas In such applications, the furnace must be installed with the following stipulations:

• It must be installed per the installation instructions provided and per local and national codes.
• It must be installed indoors in a building constructed on site.
• It must be part of a ducted system and not used in a free air delivery application.
• It must not be used as a “make-up” air unit.
• All other warranty exclusions and restrictions apply. This furnace may be used as a construction site heater ONLY if the following conditions are met:
• The vent system is permanently installed per these installation instructions.
• A room thermostat is used to control the furnace. Fixed jumpers that provide continuous heating CANNOT be used and can cause long term equipment damage. Bi-metal thermostats, or any thermostat affected by vibration must not be used during construction.
• Return air ducts are provided and sealed to the furnace.
• A return air temperature range between 60°F (16°C) and 80°F (27°C) is maintained.
• Air filters are installed in the system and replaced daily during construction and upon completion of construction.
• The input rate and temperature rise are set per the furnace rating plate.
• 100% outside air must be used for combustion during construction. Temporary ducting may be used to supply outside air to the furnace for combustion – do not connect this duct directly to the furnace. Size this duct according to NFPA 54/ANSI Z223.1 section for Combustion and Ventilation Air.
• The furnace heat exchanger, components, duct system, air filters and evaporator coils are thoroughly cleaned following final construction clean up by a qualified person.
• All furnace operating conditions (including ignition, input rate, temperature rise and venting) are verified by a qualified person according to these installation instructions.
• Furnace doors must be in place on the furnace while the furnace is operating in any mode.

Damage or repairs due to failure to comply with these requirements are not covered under the warranty. To ensure proper furnace operation, install, operate and maintain the furnace in accordance with these installation and operation instructions, all local building codes and ordinances. In their absence, follow the latest edition of the National Fuel Gas Code (NFPA 54/ANSI Z223.1), local plumbing or waste water codes, and other applicable codes. A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) can be obtained from any of the following: American National Standards Institute 25 West 43rd Street, 4th Floor New York, NY 10036 National Fire Protection Association 1 Batterymarch Park Quincy, MA 02169-7471

CSA International8501
East Pleasant Valley Cleveland, OH 44131 Additional helpful publications available from the NFPA are, NFPA 90A – Installation of Air Conditioning and Ventilating System and NFPA 90B – Warm Air Heating and Air Conditioning System. The rated heating capacity of the furnace should be greater than or equal to the total heat loss of the area to be heated. The total heat loss should be calculated by an approved method or in accordance with “ASHRAE Guide” or “Manual J-Load Calculations” published by the Air Conditioning Contractors of America. Location Requirements and Considerations

WARNING
To prevent possible equipment damage, property damage, personal injury or death, the following bullet points must be observed when installing this unit. Follow the instructions listed below when selecting a furnace location. Refer also to the guidelines provided in Combustion and Ventilation Air Requirements.

• Centrally locate the furnace with respect to the proposed or existing air distribution system.
• Ensure the temperature of the return air entering the furnace is between 55°F and 100°F when the furnace is heating.
• Provisions must be made for venting combustion products outdoors through a proper venting system. The length of flue pipe could be a limiting factor in locating 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 monoxide. Refer to Combustion and Ventilation Air Requirements.
• The furnace must be level. If the furnace is to be set on a floor that may become wet or damp at times, the furnace should be supported above the floor on a concrete base sized approximately 1-1/2” larger than the base of the furnace.
• Ensure upflow or horizontal furnaces are not installed directly on carpeting, or any other combustible material. The only combustible material allowed is wood.
• Exposure to contaminated combustion air will result in safety and performance-related problems. Do not install the furnace where the combustion air is exposed to the following substances: permanent wave solutions chlorinated waxes or cleaners chlorine-based swimming pool chemicals carbon tetrachloridewater softening chemicals swiming pool chemicals deicing salts or chemicals halogen type refrigerants printing inks cleaning solutions (such as perchloroethylene) paint removers varnishes hydrochloric acid cements and glues antistatic fabric softeners for clothes dryers masonry acid washing materials
• If the furnace is used in connection with a cooling unit, install the furnace upstream or in parallel with the cooling unit coil. Premature heat exchanger failure will result if the cooling unit coil is placed ahead of the furnace. For vertical (upflow) applications, the minimum cooling coil width shall not be less than furnace width minus 1”. Additionally, a coil installed above an upflow furnace may be the same width as the furnace or may be one size larger than the furnace. Example: a “C” width coil may be installed with a “B” width furnace. For upflow applications, the front of the coil and furnace must face the same direction.
• If the furnace is installed in a residential garage, position the furnace so that the burners and ignition source are located not less than 18 inches above the floor. Protect the furnace from physical damage by vehicles.
• If the furnace is installed horizontally, ensure access doors are not on the “up/top” or “down/bottom” side of the furnace.
• Do not connect this furnace to a chimney flue that serves a separate appliance designed to burn solid fuel.
• Adequate combustion/ventilation air must be supplied to the closet. Improper or insufficient combustion air can expose building occupants to gas combustion products that could include carbon monoxide.
• Furnace must be completely sealed to floor or base. Combustion/ ventilation air supply pipes must terminate 12” from top of closet and 12” from floor of closet. DO NOT remove solid base plate for side return.
• Return air ducts must be completely sealed to the furnace and terminate outside the enclosure surfaces.

Clearances and Accessibility

NOTE : For servicing or cleaning, a 24” front clearance is required. Unit connections (electrical, flue and drain) may necessitate greater clearances than the minimum clearances listed above. In all cases, accessibility clearance must take precedence over clearances from the enclosure where accessibility clearances are greater. Clearance in accordance with local installation codes, the requirements of the gas supplier and the manufacturer’s installation instructions.

VENT| SIDES| FRONT| BACK| TOP

(PLENUM)

---|---|---|---|---
B1-VENT| SINGLE
1″| 6″| 1″| 3″| 0″| 1″

Installations must adhere to the clearances to combustible materials to which this furnace has been design certified. The minimum clearance information for this furnace is provided on the unit’s clearance label. These clearances must be permanently maintained. Clearances must also accommodate an installation’s gas, electrical, and drain line connections.

NOTE: In addition to the required clearances to combustible materials, a minimum of 24” service clearance must be available in front of the unit.

Installation Positions
The *MVS80 furnace may be installed in an upright position or horizontal on either the left or right side panel. Do not install this furnace on its back. For vertical installations, return air ductwork may be attached to the side panel(s) and/ or basepan. For horizontal installations, return air ductwork must be attached to the basepan. Contact your distributor for proper airflow requirements and number of required ductwork connections. Refer to, “Recommended Installation Positions” for approproate installation positions, ductwork connections, and resulting airflow arrangements.

NOTE: Ductwork must never be attached to the back of the furnace.

Horizontal Installation

Line contact to framing is permitted when installed in the horizontal configuration. Line contact is defined as the portion of the cabinet that is formed by the intersection of the top and side. ACCESSIBILITY CLEARANCE, WHERE GREATER, SHOULD TAKE PRECEDENCE OVER MINIMUM FIRE PROTECTION CLEARANCE. A gas- fired furnace for installation in a residential garage must be installed so that the ignition source and burners are located not less than eighteen inches (18”) above the floor and is protected or located to prevent physical damage by vehicles. A gas furnace must not be installed directly on carpeting, tile, or other combustible materials other than wood flooring.

Furnace Suspension
If suspending the furnace from rafters or joist, use 3/8” threaded rod and 2”x2”x3/8” angle iron as shown below. The length of rod will depend on the application and the clearances necessary.

Existing Furnace Removal
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 attached appliances.

The following vent testing procedure is reproduced from the American National Standard/National Standard of Canada for Gas-Fired Central Furnaces ANSI Z21.47- Latest Edition, CSA-2.3-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 system are not in operation:

1. Seal any unused openings in the venting system;
2. Inspect the venting system for proper size and horizontal pitch, as required by the National Fuel Gas Code, ANSI 1 and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies which could cause an unsafe condition;
3. In so far as practical, close all building doors and  windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building. Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they shall operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers;
4. Follow the lighting instructions. Place the appliance being inspected in operation. Adjust thermostat so appliance shall operate continuously;
5. Test for draft hood equipped appliance spillage at the draft hood relief opening after 5 minutes of main burner Use the flame of a match or candle;
6. After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas burning appliance to their previous conditions of use;
7. If improper venting is observed during any of the above tests, the common venting system must be corrected.

Corrections must be in accordance with the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1. If resizing is required on any portion of the venting system, use the appropriate table in the latest edition of the National Fuel Gas Code ANSI Z223.1.

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:

• Drafts, or dead spots behind doors, in corners, or under cabinets.
• Hot or cold air from registers.
• Radiant heat from the sun.
• Light fixtures or other appliances.
• Radiant heat from a fireplace.
• Concealed hot or cold water pipes, or chimneys.
• Unconditioned areas behind the thermostat, such as an outside wall.

Consult the instructions packaged with the thermostat for mounting instructions and further precautions

Combustion and Ventilation Air Requirements

WARNING
To avoid property damage, personal injury or death, sufficient fresh air for proper combustion and ventilation of flue gases must be supplied. Most homes require outside air be supplied into the furnace area. Improved construction and additional insulation in buildings have reduced heat loss by reducing air infiltration and escape around doors and windows. These changes have helped in reducing heating/cooling costs but have created a problem supplying combustion and ventilation air for gas fired and other fuel burning appliances. Appliances that pull air out of the house (clothes dryers, exhaust fans, fireplaces, etc.) increase the problem by starving appliances for air.

House depressurization can cause back drafting or improper combustion of gas- fired appliances, thereby exposing building occupants to gas combustion products that could include carbon monoxide. If this furnace is to be installed in the same space with other gas appliances, such as a water heater, ensure there is an adequate supply of combustion and ventilation air for all appliances. Refer to the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 or applicable provisions of the local building codes for determining the combustion air requirements for the appliances.

This furnace must use indoor air for combustion. It cannot be installed as a direct vent (i.e., sealed combustion) furnace. Most homes will require outside air be supplied to 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. A furnace installed in a confined space (i.e., a closet or utility room) must have two ventilation openings with a total minimum free area of 0.25 square inches per 1,000 BTU/hr of furnace input rating. Refer to Specification Sheet applicable to your model for minimum clearances to combustible surfaces. One of the ventilation openings must be within 12” of the top; the other opening must be within 12” of the bottom of the confined space. In a typical construction, the clearance between the door and door frame is usually adequate to satisfy this ventilation requirement.

Category I Venting (Vertical Venting)

WARNING : To prevent possible personal injury or death due to asphyxiation, this furnace must be Category I vented. Do not vent using Category III venting.

Category I Venting is venting at a non-positive pressure. A furnace vented as Category I is considered a fan-assisted appliance and the vent system does not have to be “gas tight.” NOTE: Single stage gas furnaces with induced draft blowers draw products of combustion through a heat exchanger allowing, in some instances, common venting with natural draft appliances (i.e. water heaters). All installations must be vented in accordance with the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 .

Note : The vertical height of the category 1 venting system must be at least as great as the horizontal length of the vertical system.

WARNING: To prevent possible personal injury or death due to asphyxiation, common venting with other manufacturer’s induced draft appliances is not allowed.

The minimum vent diameter for the Category I venting system is as shown:

Upflow
60| 4 inch
80| 4 inch

Under some conditions, larger vents than those shown above may be required or allowed. 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 attached appliances.

Masonry Chimneys

WARNING: Possibility of property damage, personal injury or death damaging condensation can occur inside masonry chimneys when a single fan- assisted Category I appliance (80% AFUE furnace) is vented without adequate dilution air. Do not connect an 80% furnace to a masonry chimney unless the furnace is common vented with a draft hood equipped appliance or the chimney is lined with a metal liner or Type B metal vent. All installations using masnty chimneys must be sized in accordance with the appropriate venting tables. If an 80% furnace is common vented with a draft hood equipped appliance, the potential for condensation damage may still exist with extremely cold conditions, long vent connectors, exterior chimneys, or any combination of these conditions. The rist of condensation damage is best avoided by using masonry chimney as a pathway for properly sized metal liner or Type B metal vent.

Masonry Chimney Termination
A masonry chimney used as a vent for gas fired equipment must extend at least three feet above the highest point where it passes through the roof. It must extend at least two feet higher than any portion of a building within a horizontal distance of 10 feet. In addition, the chimney must terminate at least 3 feet above any forced air inlet located within 10 feet. The chimney must extend at least five feet above the highest connected equipment draft hood outlet or flue collar.

Electrical Connections

WARNING HIGH VOLTAGE
To avoid personal injury or death due to electrical shock, disconnect electrical power before servicing or changing any electrical wiring.

CAUTION
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing.

WARNING HIGH VOLTAGE
To avoid the risk of injury, electrical shock or death, the furnace must be electrically polarized and grounded in accordance with local codes or in their absence, with the latest edition of the National Electric Code.

Wiring Harness
The wiring harness is an integral part of this furnace. Field alteration to comply with electrical codes should not be required. Wires are color coded for identification purposes. Refer to the wiring diagram for wire routings. 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 at least 105°C. Any replacement wiring must be a copper conductor.

120 Volt Line Connections
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 the furnace must be NEC Class 1, and must comply with all applicable codes. The furnace must be electrically grounded in accordance with local codes or, in their absence, with the atest edition of The National Electric Code, ANSI NFPA 70. Use a separate fused branch electrical circuit containing properly sized wire, and fuse or circuit breaker. The fuse or circuit breaker must be sized in accordance with the maximum overcurrent protection specified on the unit rating plate. An electrical disconnect must be provided at the furnace location. Line voltage wiring must enter into the junction box provided with the furnace. Connect hot, neutral, and ground wires as shown in the wiring diagram located on the unit’s blower door. Metal conduit is not considered a substitute for an actual ground wire to the unit. Line polarity must be observed when making field connections. Line voltage connections can be made through either the right or left side panel. To relocate the junction box, follow the steps shown in the Junction Box Relocation section.

Junction Box Relocation

WARNING: Edges of sheet metal holes may be sharp. Use gloves as a precaution when removing hole plugs.

Line voltage connections can be made through either the right or left side panel. The furnace is shipped configured for a right side electrical connection. To make electrical connections through the opposite side of the furnace, the junction box must be relocated to the left side prior to making electrical connections. To relocate the junction box, perform the following steps.

WARNING
To prevent personal injury or death due to electric shock, disconnect electrical power, before installing or servicing this unit.

1. Remove both doors from the furnace.
2. Remove and save the screws holding the junction box to the right side of the furnace.
3. Models that have the junction box located in the burner compartment will need to move the junction box directly over.
4. Attach the junction box to the left side of the furnace, using the screws removed in step 2.
5. Check the location of the wiring. Confirm that it will not be damaged by heat from the burners or by the rotation of the fan. Also confirm that wiring location will not interfere with filter removal or other maintenance.

After the junction box is in the desired location, use washers to connect field-supplied conduit to the junction box in accordance with NEC and local codes. Connect hot, neutral, and ground wires as shown in the furnace wiring diagram. The wires and ground screw are located in the furnace junction box.

WARNING HIGH VOLTAGE
To avoid personal 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.

To ensure proper unit grounding, the ground wire should run from the furnace ground screw located inside the furnace junction box all the way back to the electrical 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.

1. Measure resistance between the neutral (white) connection and the unpainted surface on the furnace.
2. Resistance should measure 10 ohms or less.

This furnace is equipped with a blower door interlock switch which interrupts unit voltage when the blower door is opened for servicing. Do not defeat this switch.

Gas Supply and Piping
The furnace rating plate includes the approved furnace gas input rating and gas types. The furnace must be equipped to operate on the type of gas applied.

CAUTION
To prevent unreliable operation or equipment damage, the inlet gas supply pressure must as specified on the unit rating plate with all other household gas fired appliances operating. Inlet gas supply pressures must be maintained within the ranges specified in the following table. The supply pressure must be constant and available with all other household gas fired appliances operating. The minimum gas supply pressure must be maintained to prevent unreliable ignition. The maximum must not be exceeded to prevent unit overfiring and damage to gas valve.

NOTE : Do not remove the gas valve inlet plug before the gas line is installed. Replace if water or debris has been introduced.

INLET GAS SUPPLY PRESSURE

Natural Gas| Minimum: 4.5″ w.c.| Maximum: 10.0″ w.c.

High Altitude Derate

IMPORTANT NOTE:
The furnace, as shipped, requires no change to run between 0-4500 feet. Manifold pressure adjustments and combustion analysis are required for all installations above 4500 ft. Refer to “Gas Supply Pressure Measurement” section for instruction on how to properly measure and adjust manifold “outlet” pressure. The furnace should operate for a minimum of 15 minutes before taking a combustion sample. Combustion samples should be taken from beyond the furnace exhaust and must be within provided CO2% range. See table 6 for recommended manifold pressure adjustments and proper CO2% range. Gas heating values can vary; further pressure adjustment may be necessary to ensure furnace operates within acceptable CO2 range. At all altitudes the air temperature rise must be within the range listed on the the furnace rating plate.

Altitude

|

Gas

|

Kit

| Manifold Pressure| Pressure Sensor
---|---|---|---|---

0 – 4500

|

Natural

|

None

|

3.0″ w.c.

|

None

80% Model

| Manifold Pressure at 5000 ft| Manifold Pressure at 7500 ft| CO2%

Natural Gas

---|---|---|---
MVS800604BU| 2.5″ w.c.| 2.4″ w.c.| 5.7-7.2
MVS800805CU| 2.5″ w.c.| 2.4″ w.c.| 6.0-7.5

Gas Piping Connections

WARNING: To avoid possible unsatisfactory operation of equipment damage due to underfiring or equipment, use the proper size of natural/propane gas piping needed when running pipe from the meter/tank to the furnace.

When sizing gas lines, be sure to include all appliances on the same gas supply line and which will operate simultaneously. The gas piping supplying the furnace must be properly sized based on the gas flow required, specific gravity of the gas, and length of the run. The gas line installation must comply with local codes, or in their absence, with the latest edition of the National Fuel Gas Code, NFPA 54/ANSI Z223.1.

Natural Gas Capacity of Pipe In Cubic Feet of Gas Per Hour (CFH)

Length of

Pipe in Feet

| Nominal Black Pipe Size
---|---
1/2″| 3/4″| 1″| 1 1/4″| 1 1/2″
10| 132| 278| 520| 1050| 1600
20| 92| 190| 350| 730| 1100
30| 73| 152| 285| 590| 980
40| 63| 130| 245| 500| 760
50| 56| 115| 215| 440| 670
60| 50| 105| 195| 400| 610
70| 46| 96| 180| 370| 560
80| 43| 90| 170| 350| 530
90| 40| 84| 160| 320| 490
100| 38| 79| 150| 305| 460

(Pressure 0.5 psig or less and pressure drop of 0.3″ W.C.; Based on 0.60 Specific Gravity Gas)

CFH =BTUH Furnace Input Heating Value of Gas (BTU/Cubic Foot) Table 7

To connect the furnace to the building’s gas piping, the installer must supply a ground joint union, drip leg, manual shutoff valve, and line and fittings to connect to gas valve. In some cases, the installer may also need to supply a transition piece from 1/2” pipe to a larger pipe size. The following stipulations apply when connecting gas piping.

• Gas piping must be supported external to the furnace cabinet so that the weight of the gas line does not distort the burner rack, manifold or gas valve.
• Use black iron or steel pipe and fittings for the 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.
• Use pipe joint compound on male threads ONLY. Always use pipe joint compound (pipe dope) that is APPROVED FOR ALL GASSES. DO NOT apply compound to the first two threads.
• Use ground joint unions.
• Install a drip leg to trap dirt and moisture before it can enter the gas valve. The drip leg must be a minimum of three inches long.
• Install a 1/8” NPT pipe plug fitting, accessible for test gage connection, immediately upstream of the gas supply connection to the furnace.
• Always use a back-up wrench when making the connection to the gas valve to keep it from turning. The orientation of the gas valve connection is 374 in-lbs; excessive over-tightening may damage the gas valve and/or gas manifold assembly.
• Install a manual shutoff valve between the gas meter and unit within six feet of the unit. If a union is installed, the union must be downstream of the manual shutoff valve, between the shutoff valve and the furnace.
• Tighten all joints securely.
• Protect connectors and semi-rigid tubing against physical and thermal damage when installed. Ensure aluminum-alloy tubing and connectors are coated to protect against external corrosion when in contact with masonry, plaster, or insulation, or subjected to repeated wetting by liquids such as water (except rain water), detergents, or sewage. The gas piping may enter the left or right side of the furnace cabinet. The installer must supply rigid pipe long enough to reach the outside of the cabinet to seal the grommet cabinet penetration. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes. 1/2” NPT pipe and fittings are required. Model requires one 90 deg elbow, one 2” nipple and additional nipple to reach outside the cabinet. A semi-rigid connector to the gas piping can be used outside the cabinet per local codes. From the elbow, the length of pipe and the fittings required will vary by the side chosen, location of union and cabinet width. The union may be placed inside or outside of the cabinet.

Upflow Installations
A ground joint union, drip leg, and manual shutoff valve must also be supplied by the installer. In some cases, the installer may also need to supply a transition piece from 1/2” to another pipe size. When the gas piping enters through the side of the furnace, the installer must supply the following fittings (starting from the gas valve nipple elbow):

• Straight pipe to reach the exterior of the furnace.
• A ground joint union, drip leg, and manual shutoff valve must also be supplied by the installer.

Gas Piping Checks
Before placing unit in operation, leak test the unit and gas connections.

WARNING: To avoid the possibility or explosion or fire, never use a match or open flame to test for leaks.

Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved testing methods.

WARNING: TO PREVENT PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, THE FOLLOWING INSTRUCTIONS MUST BE PERFORMED REGARDING GAS CONNECTIONS, PRESSURE TESTING, LOCATION OF SHUTOFF VALVE AND INSTALLATION OF GAS PIPING.

NOTE : Never exceed specified pressures for testing. Higher pressure may damage the gas valve and cause subsequent overfiring, resulting in heat exchanger failure. Disconnect this unit and shutoff valve from the gas supply piping system before pressure testing the supply piping system with pressures in excess of 1/2 psig (3.48 kPa). This unit must be isolated from the gas supply system by closing its manual shutoff valve before pressure testing of gas supply piping system with test pressures equal to or less than 1/2 psig (3.48 kPa).

WARNING: If the gas furnace is installed in a basement, an excavated area or confined space, it is strongly recommended to contact a propane supplier to install a gas detecting warning device in case of a gas leak.

Ductwork

WARNING: Never allow the products of combustion, including carbon monoxide, to enter the return duct or circulation air supply.

Duct systems and register sizes must be properly designed for the CFM and external static pressure rating of the furnace. Ductwork should be designed in accordance with the recommended methods of “Air Conditioning Contractors of America” Manual D. A duct system must be installed in accordance with Standards of the National Board of Fire Underwriters for the Installation of Air Conditioning, Warm Air Heating and Ventilating Systems. Pamphlets No. 90A and 90B. A closed return duct system must be used, with the return duct connected to the furnace. NOTE: Ductwork must never be attached to the back of the furnace. For installations requiring more than 1800 CFM, use a bottom return or two sided return. Supply and return connections to the furnace may be made with flexible joints to reduce noise transmission. To prevent the blower from interfering with combustion air or draft when a central return is used, a connecting duct must be installed between the unit and the utility room wall. Furnace is shipped with the top flanges in the flat position. Before installing a coil or ducts, the flanges must be bent 90°. A room, closet, or alcove must not be used as a return air chamber.

When the furnace is used in connection with a cooling unit, the furnace should be installed in parallel with or on the upstream side of the cooling unit to avoid condensation in the heating element. With a parallel flow arrangement, the dampers or other means used to control the flow of air must be adequate to prevent chilled air from entering the furnace and, if manually operated, must be equipped with means to prevent operation of either unit unless the damper is in the full heat or cool position. Damper must be in open position when appliance main burner is operating. When the furnace is installed without a cooling coil, it is recommended that a removable access panel be provided in the outlet air duct. This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for visual light inspection or such that a sampling probe can be inserted into the airstream. The access panel must be made to prevent air leaks when the furnace is in operation.

NOTE : In a horizontal installation the air conditioning coil must be adequately supported by proper brackets and supports. Inadequate coil support can result in furnace cabinet distortion and air leakage. When the furnace is heating, the temperature of the return air entering the furnace must be between 55°F and 100°F. When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by a duct sealed to the furnace casing and terminating outside the space containing the furnace.

WARNING: Edges of sheet metal holes may be sharp. Use gloves as a precaution when removing sheet metal from return air openings.

Filters
Read This Section Before Installing The Return Air Ductwork Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship with this furnace, but must be provided by the installer. Filters must comply with UL900 or CAN/ULCS111 standards. Damage or repairs due to failure to install filters in the furnace are not covered under the warranty.

NOTE : An undersized opening will cause reduced airflow. Refer to the Filter Sizing Chart to determine filter area requirements.

Upright Installations
Depending on the installation and/or customer preference, differing filter arrangements can be applied. Filters can be installed in the central return register or a side panel external filter rack kit (upflows). As an alternative, a media air filter or electronic air cleaner may be used. The following figure shows possible filter locations.

One of the most common causes of a problem in a forced air heating system is a blocked or dirty filter. Circulating air filters must be inspected monthly for dirt accumulation and replaced if necessary. Failure to maintain clean filters can cause premature heat exchanger failure.

A new home may require more frequent replacement until all construction dust and dirt is removed. Circulating air filters are to be installed in the return air duct external to the furnace cabinet.

Upflow/

Horizontal Models

| Minimum Recommended Filter Size^
---|---
*MVS800604BU| 1-16 X 25 Side or 1-14 X 24

Bottom Return

*MVS800805CU| 2-16 X 25 Side Return, 1-20 X 25

Bottom Return

Larger filters may be used, filters may also be centrally located Table 8

Cool Cloud HVAC Phone Application
Actual screens may look different based on the mobile device being used.

This furnace is Bluetooth ready and functions with the Cool Cloud HVAC phone application designed to improve the contractor’s setup / diagnostic experience. Users can see specific model information, review active diagnostic error codes, observe system status during operation, make system menu adjustments, add site visit notes and run system testing of all operational modes (heat / cool / fan) directly from the phone. The phone application is also capable of directly updating the furnace software anytime updates are available. The application will automatically notify the user if updates are available.

NOTE : The software update may take up to 20 minutes to complete.

Quick Start Guide For Communicating Outdoor Units

EXTREMELY IMPORTANT :
For all cooling calls the system only requires a single Y input from the thermostat. For all heating calls (including dual fuel applications) the system only requires a single W input from the thermostat. Internal algorithms will control all available cooling and heating stages including dual fuel operation based on these inputs. Any single-stage 24VAC thermostat can be used. For proper operation the thermostat must be setup to control a single- stage AC outdoor unit and to control a single stage gas furnace. The control board does not accommodate an O wire thermostat input (reversing valve signal). If a heat pump is installed, the thermostat should be setup as stated above. Setting the thermostat for the heat pump control or multi stage control may result in incorrect performance.

1. Connect all necessary thermostat wires to the thermostat connector on the furnace control as instructed by the applicable wiring diagrams shown in this section.

2. Connect the 1 & 2 wires between the indoor and outdoor unit for communicating operation.
   Note : verify two stage outdoor units include a 24 VAC transformer (for outdoor control board power) Two stage outdoor units may not behave properly without this 24 VAC transformer.

3. Download the Cool Cloud HVAC phone application for charging and to configure/test system operations.

NOTE : When new versions of Bluetooth Communication Software and Furnace Control Software are available, the phone application notifies the user. Software updates are classified as either optional or mandatory and installed by using the phone application. Ensure all mandatory software updates have been installed. Review notes for optional software updates and install if necessary.

NOTE : If an E11 code exists for the inverter system immediately after line voltage is applied (code shown in the Cool Cloud HVAC phone application or displayed on the inverter control), the System Verification Test needs to be completed before any other operation. See the following procedure.

1. Allow the system to remain Idle for 5 minutes.
2. Turn the system verification test on either by using the phone application, or by entering the menu through the furnace push buttons.
3. Wait for the test to complete.

Charging

1. Inverter units using the Cool Cloud HVAC phone application or control board push button:
   • Inverter units are charged by setting the menu (Charge Mode) to ON through the furnace control board push buttons or through the Cool Cloud HVAC phone application.
   • The System will remain in charge mode (high speed) for 60 minutes before timing out.
   • The installer must manually shut off charge mode once complete.
2. Two-stage outdoor units using the Cool Cloud HVAC application:
   • Using the cooling icon after entering the outdoor unit menus, energize the outdoor unit at 100% capacity.
   • Charge the outdoor unit as required using the charging information provided with the outdoor equipment.

Gas Furnace Testing

1. Two-stage Operation using the Cool Cloud HVAC application:
   • Select the gas heat icon after entering the furnace menus.
   • Select any value less than 50% for low stage operation and any value greater than 50% for high stage operation
   • Confirm thermostat heating and cooling calls function proprly with equipment.

Quick Start Guiide For Non-Communicating Outdoor Units
When setting up a ComfortBridge™ furnace for use with a Non-Communicating outdoor unit you must set airflow in the “ton” menu on the PCB or in the CoolCloud HVAC APP. Failure to do so will result in the furnace PCB displaying “IdL” and the blower will not operate with a call for cooling. The Board does not need to be replaced, you MUST set the airflow first.

EXTREMELY IMPORTANT :
For two-stage gas heating, the system only needs a single W input. Internal algorithms will control staging of the gas furnace automatically based on the single W input. For non-communicating outdoor unit wiring see instructions below.

1. Use the wiring diagrams below to connect low voltage thermostat wires.
   • NOTE : When installing the furnace with a non communicating heat pump wire directly from the “O” terminal on the thermostat to the reversing valve “O” terminal on the non communicating heat pump. See Figure 23 for single stage and Figure 24 for the two stage diagrams
2. Download the Cool Cloud HVAC phone application.
   • NOTE : When new versions of Bluetooth Communication Software and Furnace Control Software are available, the phone application notifies the user. Software updates are classified as either optional or mandatory and installed by using the phone application. Ensure all mandatory software updates have been installed. Review notes for optional software updates and install if necessary.
3. Select the Non-Comm Outdoor Setting menu using the on board push buttons or the Cool Cloud HVAC phone application. Select 1 AC for single stage Air Conditioners, 1HP for single stage heat pumps, 2 AC for two stage air conditioners and 2 HP for two stage Heat Pumps.
4. Go to the tonnage units menu  and select the tonnage value that corresponds to the desired airflow for the outdoor unit. See the following table.
   • NOTE : For two stage non-communicating outdoor units, system will stage airflow automatically for low stage operation.
     Tonnage Selection|

Airflow

| Tonnage Selection|

Airflow

| Tonnage Selection|

Airflow

| Tonnage Selection|

Airflow

---|---|---|---|---|---|---|---
1| 400| 2.3| 920| 3.6| 1440| 4.9| 1960
1.1| 440| 2.4| 960| 3.7| 1480| 5| 2000
1.2| 480| 2.5| 1000| 3.8| 1520| 5.1| 2040
1.3| 520| 2.6| 1040| 3.9| 1560| 5.2| 2080
1.4| 560| 2.7| 1080| 4| 1600| 5.3| 2120
1.5| 600| 2.8| 1120| 4.1| 1640| 5.4| 2160
1.6| 640| 2.9| 1160| 4.2| 1680| 5.5| 2200
1.7| 680| 3| 1200| 4.3| 1720| 5.6| 2240
1.8| 720| 3.1| 1240| 4.4| 1760| 5.7| 2280
1.9| 760| 3.2| 1280| 4.5| 1800| 5.8| 2320
2| 800| 3.3| 1320| 4.6| 1840| 5.9| 2360
2.1| 840| 3.4| 1360| 4.7| 1880| 6| 2400
2.2| 880| 3.5| 1400| 4.8| 1920| |

NOTE: the system will not provide airflows above the Max Airflow Value. • 3 Ton Models = 1,400 CFM• 4 Ton Models = 1,760 CFM• 5 Ton Models = 2,200 CFM

5. Use the Cool Cloud HVAC phone application to configure/test furnace operations.
   NOTE : The phone application cannot test a non-communicating outdoor unit.The thermostat will be required for outdoor unit testing.

   • Charging

   • Two-stage outdoor units:
     Provide a second stage cooling call from the thermostat and charge accordingly.

   • Single-stage outdoor units:
     Provide a cooling call from the thermostat and charge accordingly.

   • Gas Furnace Testing

   • Two stage operation using the Cool Cloud HVAC application:

   • Select the gas heat icon after entering the furnace menus.

   • Select any value less than 50% for low stage operation and any value greater than 50% for high stage operation.

6. Confirm thermostat heating and cooling calls function properly with equipment.

Quick Start Guide for Gas Heat Only Setup (No Outdoor Unit)

EXTREMELY IMPORTANT :
The furnace only requires a single W input for 2 stage gas heat control. Internal algorithms will control staging of the gas furnace automatically

1. Connect all necessary thermostat wires to the thermostat connector on the furnace control as shown in the following diagram.

2. Download the Cool Cloud HVAC phone application and use it to configure/test furnace operations.
   NOTE : When new versions of Bluetooth Communication Software and Furnace Control Software are available, the phone application notifies the user. Software updates are classified as either optional or mandatory and installed by using the phone application. Ensure all mandatory software updates have been installed. Review notes for optional software updates and install if necessary.
   Gas Furnace Testing

   • Two-stage Operation using the Cool Cloud HVAC application:
   • Select the gas heat icon after entering the furnace menus.
   • Select any value less than 50% for low stage operation and any value greater than 50% for high stage operation.

3. Confirm thermostat heating call functions properly with equipment

Dehumidification
Dehumidification allows the furnace’s circulator blower to operate at a reduced speed during a combined thermostat call for cooling demand with a parallel humidistat. This lower blower speed increases dehumidification of the conditioned air as it passes through the indoor coil. The control board is equipped with a 24 volt dehumidification input (DH) located on the thermostat wiring connector. The terminal can be configured to enable dehumidification when the input is energized or de-energized. When using an external dehumidistat, connect it between the R and DH terminals. If the humidistat closes on humidity rise or the thermostat energizes this terminal when dehumidification is required, set the control board “ (Dehum Logic) menu setting to ” using the push buttons or Cool Cloud HVAC phone application. If the humidistat opens on humidity rise or the thermostat de-energizes this terminal when dehumidification is required, set the “” (Dehum Logic) menu to ” using the push buttons or Cool Cloud HVAC phone application.

Auxiliary Alarm Switch
The control is equipped with a 24VAC Aux Alarm to be used for a condensate switch install (designated by CONDENSATE IN/OUT on the control). By default, the connected AUX switch is normally closed and opens when the water level in the evaporator coil base pan reaches an undesirable level. The control responds by displaying an  error code and turning off the outdoor condensing unit. If the AUX switch is detected to be in the closed position for 30 seconds, normal operation resumes and the error message is no longer displayed.

Push Button Menu

The furnace includes three on-board push buttons allowing users to navigate indoor and outdoor system menus. The Right and Left buttons allow the user to scroll through the main menus and to then scroll through available options within specific menus. The Center button is used to enter into a main menu and to then permanently select options within those menus.

NOTE : After scrolling to the desired option within a menu, that option may be flashing on the 7-segment displays. This indicates the option has not been officially selected. Pressing the Center button two times will select that option. The first press will stop the flashing. The second will make the selection official and return you to the main menu

Accessories
Accessory Control (Humidifiers, Dehumidifiers, Ventilators) If an external humidifier, dehumidifier or ventilator is installed, it may require airflow from the HVAC system to function properly.

1. Make sure the installed 24VAC thermostat is capable of controlling the accessory or accessories.

2. Connect the appropriate accessory control wires to the accessory devices from the thermostat (see thermostat manual for connection and setup instructions).

3. If the thermostat is capable of providing a continuous fan call (G signal) during accessory operation:
   Make sure to connect the thermostat G terminal to the G terminal on the indoor unit. Setup thermostat to ensure G signal is energized during accessory operation.

4. Select the appropriate fan only airflow for the accessory using the indoor unit push button menus or the Cool Cloud HVAC phone application.

5. Using the thermostat, independently test each accessory in addition to independently testing continuous fan mode.

Ramping Profiles
The variable-speed circulator offers four different ramping profiles. These profiles may be used to enhance cooling performance and increaqse comfort level. Select ramping profiles on the user menu. Profile A (1) provides only an OFF delay of one (1) minute at 100% of the cooling demand airflow.

• Profile B (2) ramps up to full cooling demand airflow by first stepping up to 50% of the full demand for 30 seconds. The motor then ramps to 100% of the required airflow. A one (1) minute OFF delay at 100% of the cooling airflow is provided.
• Profile C (3) ramps up to 85% of the full cooling demand airflow 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.
• Profile D (4) ramps up to 50% of the demand for 1/2 minute, then ramps to 85% of the full cooling demand airflow and operates there for approximately 7 1/2 minutes. The motor then steps up to the full demand airflow. Profile D has a 1/2 minute at 50% airflow OFF delay.

115 Volt Line Connection or Electronic Air Cleaner

WARNING HIGH VOLTAGE:
To avoid personal injury or death due to electrical shock, disconnect electrical power before servicing or changing any electrical wiring.

The accessory load specifications are as follows:

EAC: 1.0 AMP maximum at 120 VAC

The furnace integrated control module is equipped with a line voltage accessory terminal for controlling power to an optional field supplied electronic air cleaner or any device required to operate inparallel with a circulating fan demand.
To connect an electronic air cleaner using the line voltage EAC terminal:

• Turn OFF power to the furnace before installing any accessories.
• Follow the air cleaner manufacturers’ instructions for locating, mounting, grounding, and controlling accessories. Utilize 1/4” quick connect terminals to make accessory wiring connections to the furnace integrated control module.
• Connect the hot terminal utilized for accessory operation to the EAC terminal and the neutral side of power to NEUTRAL bus on the integrated furnace control or the neutral connection in the furnace junction box.
• All field wiring must conform to applicable codes.
• If it is necessary for the installer to supply additional line voltage wiring to the inside of the furnace, the wiring must conform to all local codes, and have a minimum temperature rating of 105°C.
• All line voltage wire splices must be made inside the furnace junction box.

Startup Procedure & 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 adjustment items, refer to further information in Operational Checks section.

FERAurnace Operation

Purge gas lines of air prior to startup. Be sure not purge lines into an enclosed burner compartment. Follow NFPA 54, National Fuel Gas Code for proper purging methods. In Canada, follow approved purging methods in CAN/CSA B149.1 15. Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved method. Verify that all required kits (high altitude, etc.) have been appropriately installed.

Furnace Startup

1. Close the manual gas shutoff valve external to the furnace.

2. Turn off the electrical power to the furnace.

3. Set the room thermostat to the lowest possible setting.

4. Remove the burner compartment door.
   NOTE : This furnace is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.

5. Move the furnace gas valve manual control to the OFF position.

6. Wait five minutes then smell for gas. Be sure check near the floor as some types of gas are heavier than air.

7. If you smell gas after five minutes, immediately follow the safety instructions in the Safety Considerations on page 3 of this manual. If you do not smell gas after five minutes, move the furnace gas valve manual control to the ON position.

8. Replace the burner compartment door.

9. Open the manual gas shutoff valve external to the furnace.

10. Turn on the electrical power to the furnace.

11. Adjust the thermostat to a setting above room temperature.

12. After the burners are lit, set the thermostat to desired temperature.

Furnace Shutdown

1. Set the thermostat to the lowest setting.
   • The integrated control will close the gas valve and extinguish flame. Following a 15 second delay, the induced draft blower will be de-energized. After the blower off delay time expires, the blower de-energizes.
2. Remove the burner compartment door and move the furnace gas valve manual control to the OFF position.
3. Close the manual gas shutoff valve external to the furnace.
4. Replace the burner compartment door.

Diagnostic Chart

WARNING HIGH VOLTAGE
To avoid personal injury or death due to electrical shock, disconnect electrical power before performing any service or maintenance Refer to the Troubleshooting Chart in the back of this manual for assistance in determining the source of unit operational problems. The 7-segment LED displays will display an error code that may contain a letter and number. The error code may be used to assist in troubleshooting the unit.

Resetting From Lockout
Furnace lockout results when a furnace is unable to achieve ignition after three attempts during a single call for heat. It is characterized by a non- functioning furnace and an  code displayed on the 7-segment display. If the furnace is in “lockout”, it will (or can be) reset in any of the following ways.

1. Automatic reset. The integrated control module will automatically reset itself and attempt to resume normal operations following a one hour lockout period.
2. Manual power interruption. Interrupt 115 volt power to the furnace.
3. Manual thermostat cycle. Lower the thermostat so that there is no longer a call for heat for 1 -20 seconds then reset to previous setting.

NOTE : If the condition which originally caused the lockout still exists, the control will return to lockout. Refer to the Troubleshooting Chart for aid in determining the cause.

Menu Options **Status Codes**

Troubleshooting Chart

Fault Code Recall
Accessing the furnace’s diagnostic menu provides access to the last six 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. The control will only store this fault the first three consecutive times the fault occurs.

NOTE : It is highly recommended that the fault history be cleared when performing maintenance or servicing the furnace.

Gas Supply Pressure Measurement

CAUTION: To prevent unreliable operation or equipment damage, the inlet gas supply pressure must be as specified on the unit rating plate with all other household gas fired appliance operating.

The line pressure supplied to the gas valve must be within the range specified on Table 9. The supply pressure can be measured at the gas valve inlet pressure tap or at a hose fitting installed in the gas piping drip leg. The supply pressure must be measured with the unit OFF. To measure inlet pressure, use the following procedure.

1. Turn OFF gas to furnace at the manual gas shutoff valve external to the furnace.

2. Turn OFF all electrical power to the system.

3. Inlet pressure tap connections:

   • White-Rodgers valve: Back inlet pressure test screw (inlet pressure tap out one turn (counterclockwise, not more than one turn).

4. Connect calibrated manometer (or appropriate pressure gauge) at either the gas valve inlet pressure tap or the gas piping drip leg. See White-Rodgers 36J22Y gas valve Figure 13 for location of inlet pressure tap.

5. Turn ON the gas supply.

6. Turn On power and operate the furnace and all other gas consuming appliances on the same gas supply line.

7. Using a leak detection solution or soap suds, check for leaks at screw (White-Rodgers valve). Bubbles forming indicate a leak. SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY!

8. Measure the gas supply pressure with burners firing. Adjust supply pressure using the Inlet Gas Supply Pressure table shown below. If supply pressure reading differs from the table, make necessary adjustments to pressure regulator, gas piping size, etc., and/or consult with local gas utility.
   INLET GAS SUPPLY PRESSURE

   Natural Gas| Minimum: 4.5″ w.c.| Maximum: 10.0″ w.c.

9. Turn OFF all electrical power and gas supply to the system.

10. Remove the manometer hose from the hose barb fitting or inlet pressure Tap.

11. Replace inlet pressure tap:
    White-Rodgers valve: Turn inlet pressure test screw in to seal pressure port (clockwise, 7 in-lb minimum).

12. Retest for leaks. If bubbles form, shut down gas and repair leaks immediately.

13. If there are no leaks, turn ON electrical power and gas supply to the system.

14. Turn valve switch ON.

    • NOTE : If measuring gas pressure at the drip leg, a field-supplied hose barb fitting must be installed prior to making the hose connection. If using the inlet pressure Tap on the White-Rodgers gas valve, then use the 36G/J Valve Pressure Check Kit, Goodman Part No. 0151K00000S

Gas Manifold Pressure Measurement and Adjustment

CAUTION: To prevent unreliable operation or equipment damage, the inlet gas supply pressure must be as specified on the unit rating plate with all other household gas fired appliance operating.

Only small variations in gas pressure should be made by adjusting the gas valve pressure regulator. The manifold pressure must be measured with the burners operating. To measure and adjust the manifold pressure, use the following procedure.

1. Turn OFF gas to furnace at the manual gas shutoff valve external to the furnace.
2. Turn OFF all electrical power to the system.
3. Outlet pressure tap connections:
   • White-Rodgers valve: Back outlet pressure test screw (outlet pressure Tap) out one turn (counterclockwise, not more than one turn).
4. Connect calibrated manometer (or appropriate pressure gauge) at the gas valve outlet pressure tap. See White-Rodgers 36J22Y gas valve Figure 13 for location of outlet pressure tap.
5. Turn ON the gas supply.
6. Turn ON power and close thermostat “R” and “W” contacts to provide a call for heat.
7. Using a leak detection solution or soap suds, check for leaks at outlet pressure Tap screw (White-Rodgers valve). Bubbles forming indicate a leak. SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY!

8. Measure the gas manifold pressure with burners firing. Adjust manifold pressure using the following Manifold Gas Pressure table.
   Manifold Gas Pressure

   Natural Gas| 2.8″ – 3.2″ w.c.

9. Remove regulator cover screw from the outlet pressure regulator and turn screw clockwise to increase pressure or counterclockwise to decrease pressure. Replace regulator cover screw.
10. Turn OFF all electrical power and gas supply to the system.
11. Remove the manometer hose from the hose barb fitting or outlet pressure Tap.
12. Replace outlet pressure tap:
    • White-Rodgers valve: Turn outlet pressure test screw in to seal pressure port (clockwise, 7 in-lb minimum).
13. Turn ON electrical power and gas supply to the system.
14. Close thermostat contacts to provide a call for heat.
15. Retest for leaks. If bubbles form, SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY!

Gas Input Rate Measurement (Natural Gas Only)
The gas input rate to the furnace must never be greater than that specified on the unit rating plate. To measure natural gas input using the gas meter, use the following procedure.

1. Turn OFF the gas supply to all other gas-burning appliances except the furnace.
2. While the furnace is operating at high fire rate, time and record one complete revolution of the gas meter dial, measuring the smallest quantity, usually the dial that indicates 1/2 cu. ft. per revolution. You will use this number to calculate the quantity of gas in cubic ft. if the furnace would consume if it ran steadily for one hour (3600 seconds).
3. If the 1/2 cu. ft. dial was used, multiply your number X 2. EXAMPLE: If it took 23 seconds to complete one revolution of the 1/2 ft. dial (23 x 2 = 46). This tells us that at this rate, it would take 46 seconds to consume one cu. ft. of gas. This tells us that in one hour, the furnace would consume 78 cu. ft. of gas. (3600/46 = 78) The typical value range for 1 cu. ft. of natural gas is around 1025 BTU. Check with your gas utility, if possible. In this example, the furnace is consuming 80,000 BTUH.
   • NOTE : The final manifold pressure cannot vary by more than ± 0.2” w.c. for Natural from the specified setting. Consult your local gas supplier if additional input rate adjustment is required.
4. Turn ON gas and relight appliances turned off in step 1. Ensure all the appliances are functioning properly and that all pilot burners (if applicable) are operating.

Temperature Rise
Air temperature rise is the temperature difference between supply and return air. The proper amount of temperature rise is usually obtained when the unit is operated at the rated input with the “as shipped” blower speed. If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. 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. An airflow and temperature rise table is provided in the Specification Sheet applicable to your model.

1. Operate furnace with burners firing approximately 15 minutes. Ensure all registers are open and all duct dampers are in their final (fully or partially open) position
2. Place thermometers in the return and supply ducts as close to the furnace as possible. Thermometers must not be influenced by radiant heat by being able to “see” the heat exchanger.
3. Subtract the return air temperature from the supply 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. Increase blower speed to reduce temperature rise. Decrease blower speed to increase temperature rise.

WARNING: To avoid personal injury or death due to electrical shock, turn OFF power to the furnace before changing speed taps.

Operational Checks

WARNING : To avoid personal injury or death due to electrical shock, turn OFF power to the furnace before changing speed taps.

Operational Checks

WARNING: To avoid personal injury or death, do not remove any internal compartment covers or attempt any adjustment. Electrical components are contained in both compartments. Contact a qualified service agent at once if an abnormal operation should develop.

Checking Duct Static
Refer to your furnace rating plate for the maximum ESP (external duct static) rating. Total external static refers to everything external to the furnace cabinet. Cooling coils, filters, ducts, grilles, registers must all be considered when reading your total external static pressure. The supply duct pressure must be read between the furnace and the cooling coil. This reading is usually taken by removing the “A” shaped block off plate from the end on the coil; drilling a test hole in it and reinstalling the block off plate. Take a duct static reading at the test hole. Tape up the test hole after your test is complete. The negative pressure must be read between the filter and the furnace blower. Too much external static pressure will result in insufficient air that can cause excessive temperature rise. This can cause limit switch tripping and heat exchanger failure. To determine total external duct static pressure, proceed as follows;

1. With clean filters in the furnace, use a manometer to measure the static pressure of the return duct at the inlet of the furnace. (Negative Pressure)

2. Measure the static pressure of the supply duct. (Positive Pressure)

3. The difference between the two numbers is .4” w.c.

   • Example:
     

   • static reading from return duct = -.1” w.c.

   • static reading from supply duct = .3” w.c.

   • total external static pressure on this system = .4” w.c.

   • 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 theses components, as shown in the following drawing.

4. Consult proper tables for the quantity of air. If the total external static pressure exceeds the maximum listed on the furnace rating plate, check for closed dampers, 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.

Safety Circuit Description General

WARNING
To avoid personal injury or death, do not remove any internal compartment covers or attempt any adjustment. Electrical components are contained in both compartments. Contact a qualified service agent at once if an abnormal operation should develop.

WARNING: DO NOT BYPASS SAFETY DEVICES

A number of safety circuits are employed to ensure safe and proper furnace operation. These circuits serve to control any potential safety hazards and serve as inputs in the monitoring and diagnosis of abnormal function. These circuits are continuously monitored during furnace operation by the integrated control module.

Integrated Control Module
The integrated control module is an electronic device which controls all furnace operations. Responding to the thermostat, the module initiates and controls normal furnace operation, and monitors and addresses all safety circuits. If a potential safety concern is detected, the module will take the necessary precautions and provide diagnostic information through an LED.

Primary Limit
The primary limit control is located on the partition panel and monitors heat exchanger compartment temperatures. It is a normally closed (electrically), automatic reset, temperature activated sensor. The limit guards against the overheating resulting from insufficient air passing over the heat exchanger.

Auxiliary Limit
The auxiliary limit control is located either on or near the circulator blower and monitors heat exchanger compartment temperatures. The control is a normally closed (electrically), automatic reset, temperature activated sensor. It guards against overheating resulting from insufficient air passing over the heat exchanger. The auxiliary limit control is suitable for both horizontal right and horizontal left installations. Regardless of airflow direction, it does not need to be relocated.

Burner Temperature Switch
The burner temperature switch is mounted on the burner assembly to monitor the burner box temperature. It is normally closed (electrically), auto-reset sensor. This switch guards agianst the burner flames not being properly drawn into the heat exchanger.

Pressure Sensor
The pressure sensor is mounted near induced draft blower. Its function is to regulate the induced draft blower’s speed in order to maintain proper air-fuel ratio for clean and reliable combustion. The pressure sensor also guards agianst insufficient airflow (combustion air and flue products) through the heat exchanger.

Flame Sensor
The flame sensor is a probe mounted near the burner assembly which uses the principle of flame rectification to determine the presence or absence of flame.

Maintenance

WARNING: To avoid electrical shock, injury or death, disconnect electrical power before performing any service or maintenance. Only qualified servicer should service our perform maintenance.

Annual inspection
The furnace should be inspected by a qualified installer, or service agency at least once per year. This check should be performed at the beginning of the heating season. This will ensure that all furnace components are in proper working order and that the heating system functions appropriately. Pay particular attention to the following items. Repair or service as necessary.

• Flue pipe system: Check for blockage and/or leakage. Check the outside termination and the connections at and internal to the furnace.
• Heat exchanger: Check for corrosion and/or buildup within the heat exchanger passageways.
• Burners: Check for proper ignition, and flame sense.
• Wiring: Check electrical connections for tightness and/or corrosion. Check wires for damage.
• Filters: Check filters and determine if any need to be replaced.

Filters

WARNING: To avoid property damage, personal injury or death, disconnect electrical power before removing filters. Never operate furnace without a filter installed because dust and lint will build up on internal parts resulting in loss of efficiency, equipment damage and possible fire.

A return air filter is not supplied with this furnace; however, there must be a means of filtering all of the return air. The installer will supply filter(s) at the time of installation.

WARNING HIGH VOLTAGE
To prevent property damage, personal injury or death due to electrical shock, disconnect electrical power to the furnace BEFORE removing the filer or performing any other maintenance

Induced Draft and Circulator Blower Motors
The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No further lubrication is required. Check motor windings for accumulation of dust which may cause overheating. Clean as necessary.

Flame Sensor (Qualified Servicer Only)
Under some conditions, the fuel or air supply can create a nearly invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sense signal. If the flame sense signal drops too low the furnace will not sense flame and will lock out. The flame sensor should be carefully cleaned by a qualified servicer using steel wool. The flame sense signal should be 1 to 3 microamps.

Igniter (Qualified Servicer Only)
At room temperature, the igniter ohm reading should be from 20 – 100 ohms.

Burner

WARNING: To prevent personal injury or death, do not remove any internal compartment covers or attempt any adjustment. Electrical compnents are contained in both compartments. Contact a qualified service agent at once if an abnormal operation should develop

The Ultra low NOx furnace uses a premix burner. The burner box is sealed to achieve safe and reliable operation.

Cleaning (Qualified Servicer Only)

1. Shut off electric power and gas supply to the furnace.
2. Disconnect the rollout limit wires, flame sensor wire, and disconnect the igniter plug.
   • CAUTION : Label all wires prior to disconnection when servicing controls. Wiring errors can causeimproper and dangerous operation. Verify proper operation after servicing.
3. Do not remove burner or other components.
4. Clean cabinet and around the inducer blower, moter and burner box.
5. Reconnect wiring.
6. Turn on electric power and gas supply to the furnace.
7. Check furnace for proper operation. Refer to “Operational Checks” section to verify burner flame characteristics.

Before Leaving an Installation

• Cycle the furnace with the thermostat at least three times. Verify cooling and fan only operation.
• Review the Owner’s Manual with the homeowner and discuss proper furnace operation and maintenance.
• Leave literature packet near furnace.

Repair and Replacement Parts

• When ordering any of the listed functional parts, be sure to provide the furnace model, manufacturing, and serial numbers with the order.
• Although only functional parts are shown in the parts list, all sheet metal parts, doors, etc. may be ordered by description.
• Parts are available from your distributor.

Functional Parts List

• Gas Valve
• Natural Gas Orifice
• Burner Assembly
• Hot Surface Igniter
• Flame Sensor
• Gas Manifold
• Ignition Control
• Blower Mounting Bracket
• Pressure Sensor
• Pressure Sensor Hose
• Induced Draft Blower
• Integrated Control Module
• Burner Box Gasket
• Blower/Collector Box Gasket
• Primary Limit Switch
• Burner Temperature Switch
• Auxiliary Limit Switch
• Heat Exchanger
• Door Switch
• Transformer
• Blower Wheel
• Blower Housing
• Blower Cutoff
• Blower Motor
• Motor Mount Bracket

Component ID

1. Tubular Heat Exchanger
2. Pressure Switch
3. Flue Pipe Connection
4. Gas Line Entrance
5. Gas Valve
6. Inducer
7. Gas Manifold Assembly
8. Wiring Harness Grommet
9. Burner Assembly
10. Integrated Control Module
11. Transformer
12. Blower Door Interlock Switch
13. Circulator Blower

Wiring diagram

WARNING HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.

NOTES:

1. SETHEATANTICIPATORONROOMTHERMOSTATAT0.7AMPS.
2. MANUFACTURER’SSPECIFIEDREPLACEMENTPARTSMUSTBEUSEDWHENSERVICING.
3. IFANYOFTHEORIGINALWIREASSUPPLIEDWITHTHEFURNACEMUSTBEREPLACED, ITMUSTBEREPLACEDWITHWIRINGMATERIALHAVINGATEMPERATURERATINGOF ATLEAST105$C.USECOPPERCONDUCTORSONLY.
4. UNITMUSTBEPERMANENTLYGROUNDEDANDCONFORMTON.E.C.ANDLOCALCODES.
5. TORECALLTHELAST6FAULTS,MOSTRECENTTOLEASTRECENT,DEPRESSSWITCH FORMORETHAN2SECONDSWHILEINSTANDBY(NOTHERMOSTATINPUTS)
6. HUMIDIFIER INSTALLATION OPTIONS: USE HUM TERMINAL TO RUN HUMIDIFIER DURING HEAT CALL (COMMUNICATING OR LEGACY MODES). USE HUM-IN AND HUM-OUT TERMINALS TO RUN HUMIDIFIER DURING HEAT CALL ( COMMUNICATING MODE OR LEGACY MODE) OR INDEPENDENTLY FROM HEAT CALL (COMMUNICATING MODE ONLY – SETUP IS DONE WITHIN COMMUNICATING THERMOSTAT)
   0140F02649-1

Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.

Start-Up Checklist

Furnace

ELECTRICAL
Line Voltage (Measure L1 to N and N to Ground Voltage) Secondary Voltage (Measure Transformer Output Voltage) Blower Amps

__**BLOWER EXTERNAL STATIC PRESSURE
** Return Air Static Pressure Supply Air Static Pressure

Total External Static Pressure (Ignoring +/- from the reading above, add total here)

TEMPERATURES

Return Air Temperature (Dry bulb / Wet bulb)

Cooling Supply Air Temperature (Dry bulb / Wet bulb) Heating Supply Air Temperature

Temperature Rise

Delta T (Difference between Supply and Return Temperatures)

GAS PRESSURES

Gas Inlet Pressure

Gas Manifold Pressure (Low Fire) Gas Manifold Pressure (High Fire)

__

Gas Type (NG) = Natural Gas / (LP) = Liquid Propane

| Model Number Serial Number

L – N

N – G

R – C

| IN. W.C.

IN. W.C.

IN. W.C.

__

DB °F DB °F DB °F DB °F DB °F

__

IN. W.C.

IN. W.C.

IN. W.C.

| __

__

__

__

__

__

__

__

__

__

__

__

__

__

__

__

__

WB °F WB °F

Additional Checks
Check wire routings for any rubbing Check  for kinked pressure  switch tubing.

Check flue elbow for alignment and clamp tightness. Check screw tightness on blower wheel.

Check factory wiring and wire connections.

Check product for proper clearances as noted by installtion instructions

°F to °C formula: (°F – 32) divided by 1.8 = °C  °C to °F formula: (°C multiplied by 1.8) + 32 = °F

CUSTOMER FEEDBACK

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• Goodman® Brand Products: (http://www.goodmanmfg.com/about/contact-us).
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You can also scan the QR code on the right for the product brand  you purchased to be direced to the feedback page.

Product Registration
Thank you for your recent purchase. Though not required to get the protection of the standard waranty, registering your product is a relatively short process, and entitles you to additional warranty protection, except that failure by California ad Quebec residents to register their product does not diminsh their warranty rights.

For Product Registration please register by following this link:

1. Goodman® Brand Products: (https://www.goodmanmfg.com/product-registration).
2. Amana® Brand Products: (http://www.amana-hac.com/product-registration).

You can also scan the QR code on the right to be directed to the Product Registration Page.

References

• Quality, Durable Heating & Air Conditioning Systems From Amana
• Register Your Amana Heating And Cooling Equipment Here
• Air Conditioning and Heating Systems| HVAC | Goodman
• Contact Us | Goodman Manufacturing
• Silicon Labs
• Warranty Registration | Register Your Goodman HVAC Product

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