Goodman Mfg MVC95, CVC9/95 Temperature Rise Measurement, Circulatorblowerspeeds

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STARTUP PROCEDURE & ADJUSTMENT

HEAT EXCHANGER

RADIATION "LINE OF SIGHT"

SUPPLY

AIR

TSUPPLY

RISE = TSUPPLY - TRETURN

TRETURN

RETURN

AIR

Temperature Rise Measurement

CIRCULATORBLOWERSPEEDS

WARNING

TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, TURN OFF POWER TO THE FURNACE BEFORE CHANGING SPEED TAPS.

This furnace is equipped with a multi-speed circulator blower. This blower provides ease in adjusting blower speeds. The Specifica- tion Sheet applicable to your model provides an airflow table, show- ing the relationship between airflow (CFM) and external static pres- sure (E.S.P.), for the proper selection of heating and cooling speeds. The heating blower speed is shipped set at “B”, and the cooling blower speed is set at “D”. These blower speeds should be ad- justed by the installer to match the installation requirements so as to provide the correct heating temperature rise and correct cooling CFM.

Use the dual 7-segment LED display adjacent to the dipswitches to obtain the approximate airflow quantity. The airflow quantity is displayed as a number on the display, rounded to the nearest 100 CFM. The display alternates airflow delivery indication and the operating mode indication.

Example: The airflow being delivered is 1225 CFM. The display indicates 12. If the airflow being delivered is 1275, the display indicates 13.

1.Determine the tonnage of the cooling system installed with the furnace. If the cooling capacity is in BTU/hr divide it by 12,000 to convert capacity to TONs.

Example: Cooling Capacity of 30,000 BTU/hr. 30,000/12,000 = 2.5 Tons

2.Determine the proper air flow for the cooling system. Most cooling systems are designed to work with air flows between 350 and 450 CFM per ton. Most manufacturers recommend an air flow of about 400 CFM per ton.

Example: 2.5 tons X 400 CFM per ton = 1000 CFM

The cooling system manufacturer’s instructions must be checked for required air flow. Any electronic air cleaners or other devices may require specific air flows, consult installation instructions of those devices for requirements.

3.Knowing the furnace model, locate the high stage cooling air flow charts in the Specification Sheet applicable to your model. Look up the cooling air flow determined in step 2 and find the required cooling speed and adjustment setting.

Example: A *MVC95704CX furnace installed with a 2.5 ton air conditioning system. The air flow needed is 1000 CFM. Looking at the cooling speed chart for *MVC95704CX, find the air flow closest to 1000 CFM. A cooling airflow of 990 CFM can be attained by setting the cooling speed to “C” and the adjustment to “-

”(minus).

4.Continuous fan speed is 30% of the furnace’s maximum airflow capability.

Example: If the furnace’s maximum airflow capability is 2000 CFM, the continuous fan speed will be 0.30 x 2000 CFM = 600 CFM.

5.Locate the blower speed selection DIP switches on the integrated control module. Select the desired “cooling” speed tap by positioning switches 1 and 2 appropriately. Select the desired “adjust” tap by positioning switches 3 and 4 appropriately. Refer to the following figure for switch positionsandtheircorrespondingtaps. VerifyCFMbynoting the number displayed on the dual 7-segment LED display.

6.The multi-speed circulator blower also offers several custom ON/OFF ramping profiles. These profiles may be used to enhance cooling performance and increase comfort level. The ramping profiles are selected using DIP switches 5 and 6. Refer to the following figure for switch positions and their corresponding taps. Refer to the bullet points below for a description of each ramping profile. Verify CFM by noting the number displayed on the dual 7-segment LED display.

Sw itch Bank: S4

Ramping

DIP Sw itch No.

 

 

Profiles

5

6

 

 

 

A *

OFF

OFF

B

ON

OFF

C

OFF

ON

D

ON

ON

(*Indicates factory setting)

•Profile A provides only an OFF delay of one (1) minute at 100% of the cooling demand airflow.

 

 

100% CFM

 

 

 

100% CFM

 

 

OFF

 

 

 

OFF

 

 

 

 

 

 

1 min

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Contents Type FSP Category IV Direct or Non Direct Vent Air Furnace Product Description Normal Sequence of Operation Troubleshooting Safety Precautions What to do if YOU Smell GASElectrostaticdischargeesdprecautions TotheinstallerProduct Description & Application ShippinginspectionProduct Description FeaturesProductapplication Location Requirements & Considerations Furnacesuspension ClearancesandaccessibilityExistingfurnaceremoval Combustion & Ventilation AIR Requirements Installation PositionsThermostatlocation Horizontal Applications & Considerations AlternateVent/FlueLocation RecommendedInstallationPositionsHorizontalFurnace Propane GAS/HIGH Altitude Installations VENT/FLUE Pipe & Combustion AIR PipePROPERVENT/FLUEANDCOMBUSTIONAIRPIPINGPRACTICES MaterialsandjoiningmethodsTerminationlocations Increased Clearance Configuration Vent Termination ClearancesCanadianventingrequirements StandardfurnaceconnectionsVent/FluePipeCuts AlternatefurnaceconnectionsRemove Pipe Relocate Upflow NON-DIRECTVENTSINGLEPIPEPIPINGVertical Termination Single Pipe Alternate Vertical Termination Single PipeHorizontalTerminationSinglePipe DirectventdualpipepipingVertical Terminations Dual Pipe Standard Horizontal Terminations Dual PipeAlternate Horizontal Vent Termination Dual Pipe HorizontalVentingOfMultipleUnitsConcentricventtermination Side Wall Vent KITHose and Tube Identification Condensate Drain Lines & Drain TrapStandardrightorleftsidedrainhoseconnections UPRIGHTINSTALLATIONS-TRAPONRIGHTSIDE Drain Trap MountingExternally UPRIGHTINSTALLATIONS-TRAP on Leftside Horizontalinstallations Counterflow furnacesCut Wiringharness Electrical ConnectionsJunctionbox Relocation 115VOLT Line Connections24VOLTTHERMOSTATWIRING Thermostat Wiring DiagramsSINGLE-STAGE Heatingthermostatapplication Accessory load specifications are as follows FossilfuelapplicationsAccessories Wiring GAS Supply and Piping24VOLTHUMIDIFIER HighaltitudederateGaspipingconnections Natural Gas Capacity of Pipe Cubic Feet of Gas Per Hour CFHHorizontal Upflow Model Gas Piping ConnectionsCoupling Degree elbow Inch close nipple PropaneGasInstallationTypPropanegastanksandpiping Propane Gas Piping Chart Circulating AIR & FiltersDuct Work -AIR Flow Checking Duct StaticConsult proper tables for the quantity of air Checking Static Pressure 80% Furnace Shown, 90% SimilarDuctFlangeCutOuts BottomreturnairopeningupflowmodelsStartup Procedure &ADJUSTMENT Startup Procedure & AdjustmentFollowing figure shows possible filter locations Temperature Set the thermostat to the lowest settingIf you smell gas after five minutes, immediately follow White-Rodgers Model 36G54 Two-StageGasmanifoldpressuremeasurementandadjustment Turn on the gas supplyHoneywell Model VR9205 Connected to Manometer Measuring Inlet Gas Pressure Alt. MethodTemperaturerise GasinputratemeasurementnaturalgasonlyTemperature Rise Measurement CirculatorblowerspeedsAirflowTable Heat Off Delay Dipswitches Blowerheat Offdelay TimingsComfortnet System OverviewSystem Wiring using Four-Wires System System OperatingTouch To step through the list of installed equip ComfortnetsystemadvancedfeaturesPear. Use Value. TouchConfiguration Networktroubleshooting Is 30 seconds Non-CT compatible single stage AC unitSystemtroubleshooting Power UPNormal Sequence of Operation HeatingmodeCoolingmode Operational Checks & Safety Circuit DescriptionFanonlymode Safety Circuit Description Troubleshooting & Maintenance Operational ChecksTroubleshooting Maintenance Troubleshooting & MaintenanceFollow the manufacturer’s directions for service Before Leaving AN Installation Repair and Replacement PartsInduced Draft Blower Transformer Door Switch MiscellaneousDIP Switches BankTroubleshooting Chart InternalLimit Chart MessageInvalid Trips Status Codes Wiring Diagram CVC9AA, *MVC95AACVC9AB, *MVC95AB

MVC95, CVC9/95 specifications

Goodman Manufacturing has established itself as a leader in the HVAC industry, and among its stellar lineup, the Goodman CVC9/95 and MVC95 stand out for their remarkable features, technologies, and efficiency.

The Goodman CVC9/95 is a high-performance gas furnace, designed for homeowners seeking reliability and cost-effective heating solutions. It operates with an impressive 95% Annual Fuel Utilization Efficiency (AFUE), which means that a significant portion of the fuel it consumes is converted into heat. This level of efficiency not only contributes to lower energy bills but also reduces greenhouse gas emissions, making it an environmentally friendly choice.

One of the standout features of the CVC9/95 is its multi-speed ECM blower motor. This technology adjusts the airflow according to the heating demands of the home, ensuring consistent and comfortable temperatures. The ECM motor also operates quietly, enhancing the comfort of your living space without the disruptive noise often associated with traditional furnaces.

The MVC95, on the other hand, offers similar efficiency with its also 95% AFUE rating. This model is equipped with a patented ignition system that enhances reliability with minimal maintenance needs. Its durable construction includes a heavy-gauge steel cabinet and an insulated blower compartment that minimizes heat loss. This design not only supports optimal performance but also contributes to its longevity.

Both models come with a self-diagnostic control board that provides straightforward troubleshooting capabilities, making it easier for technicians to ensure that your system is operating at peak performance. This feature aids in timely maintenance, which is crucial for extending the lifespan of the unit.

Additionally, Goodman backs their products with a strong warranty, offering a lifetime limited warranty on the heat exchanger and a 10-year limited parts warranty. This assurance provides homeowners peace of mind regarding their investment.

In the landscape of HVAC solutions, the Goodman CVC9/95 and MVC95 models exemplify a commitment to quality, efficiency, and advanced technology. Whether for new constructions or replacements, these furnaces offer superior heating performance coupled with modern conveniences, making them an invaluable choice for homeowners seeking effective climate control solutions. With their low emissions and high efficiency, choosing Goodman means investing in both comfort and sustainability.
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