Goodman Mfg AMV8 instruction manual Temperature Rise, Circulator Blower Speed Adjustment

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5.Turn ON gas and relight appliances turned off in step 1. Ensure all the appliances are functioning properly and that all pilot burners 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.

An incorrect temperature rise can cause condensing in or overheating of the heat exchanger. Determine and adjust the temperature rise as follows. The temperature rise must be within the range specified on the rating plate or Product Data Book applicable to your model*.

HEAT EXCHANGER

RADIATION "LINE OF SIGHT"

SUPPLY

AIR

TSU PPLY

RISE = TSU PPLY - TRET URN

TRET URN

RETURN

AIR

Temperature Rise Measurement

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. Refer to the following section for speed changing details.

CIRCULATOR BLOWER SPEED ADJUSTMENT

WARNING

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

All furnaces are shipped with heating speed set at “B” and cooling speed set at “D”. Use the following procedure to select the heating and cooling speed needed for your unit.

Use the CFM LED (green), adjacent to the integrated control module fuse to verify airflow quantity. The green CFM LED

blinks once for each 100 CFM of airflow.

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 Product Data Book 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 70 kBtu furnace is to be installed with a 2.5

ton air conditioning system. The air flow needed is 1000 CFM. Using the cooling speed chart for the 70 kBtu furnace, find the airflow 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). NOTE: Continuous Fan Speed will be 56% of high stage cooling.

4.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 positions and their corresponding taps. Turn off power to furnace for a minimum of 10 seconds, allowing motor to reset and recognize new speed selection. Turn on power to furnace. Verify CFM by counting the number of times the green CFM LED blinks.

5.The multi-speed circulator blower also offers several custom ON/OFF ramping profiles. These ramping 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. Turn off power to furnace for a minimum of 10 seconds, allowing motor to reset and recognize the new profile selection. Turn on power to the furnace. Verify profile selection by counting the green CFM LED blinks and timing each step of the ramping profile

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

100% CFM

100% CFM

OFF

OFF

Cooling

1 min

Demand

 

•Profile B 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 1 minute OFF delay at 100% of the cooling airflow.

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Contents Installation & Operating Table of Contents XII. Start-up Procedure and Adjustment XIV. Safety Circuit DescriptionXV. Troubleshooting XVI. MaintenanceII. Safety To the InstallerHomeowner Notice To the OwnerAdditional Safety Considerations Electrostatic Discharge ESD PrecautionsIII. Product Application American National Standards InstituteIV. Location Requirements and Considerations National Fire Protection AssociationCSA International National Fire Protection Association, IncThermostat Influences Furnace SuspensionThermostat Location Existing Furnace RemovalCombustion and Ventilation AIR Requirements Z223.1 Section GeneralEquipment Located in Unconfined Spaces Space, UnconfinedSpecially Engineered Installations VI. Category I Venting Vertical Venting Louvers and GrillesMinimum Vent Checklist Summary VII. Exterior Masonry Chimneys Category I Furnaces onlyCheck 1 Proper Chimney Termination Check 4 Debris in Cleanout Check 3 Chimney Crown ConditionCheck 5 Liner Condition Check 7 Complete the Installation Check 6 Dilution AIRFIX 1 Liner Termination FIX 2 -CHANGE Venting ArrangementsWiring Harness VIII. Electrical ConnectionsVolt Line Connections Junction BOX RelocationVolt Thermostat Wiring Single Stage Thermostat ApplicationSetting the Heat Anticipator Volt Dehumidistat WiringSINGLE-STAGE Thermostat Application Fossil Fuel ApplicationsIX. GAS Supply and Piping High Altitude DerateAltitude NAT. GAS Orifice Size Meter Time in Minutes and Seconds for Normal Input Rating of Furnaces Equipped for USE with NaturalGAS AT 0 2,000 Feet Altitude GAS Piping ConnectionsUpflow Installations GAS Piping ChecksPropane GAS Tanks and Piping Propane GAS Piping Charts Circulating AIR and FiltersDuctwork AIR XI. Sequence of Operation Integrated Ignition Control XII. START-UP Procedure and Adjustment White-Rodgers Model 36E54 Connected to ManometerGAS Manifold Pressure Measurement and Adjustment GAS Input Rate Measurement Natural GAS onlyTemperature Rise Circulator Blower Speed AdjustmentAdjust Blower Heat OFF Delay Circulator Blower FAN Timing AdjustmentXIII. Safety Circuit Description XIII. Operational ChecksXV. Troubleshooting XVI. MaintenanceXVII. Before Leaving AN Installation XVIII. Repair and Replacement PartsTroubleshooting Chart Continuously Wiring Diagram Are Subject to Change Without Notice

AMV8 specifications

Goodman Manufacturing has long been recognized as a key player in the HVAC industry, and the Goodman AMV8 stands out as a remarkable addition to their lineup of high-efficiency air conditioning units. Designed with the latest technological advancements, the AMV8 focuses on providing enhanced performance, energy efficiency, and reliability, making it a popular choice among homeowners and contractors alike.

One of the primary features of the Goodman AMV8 is its high SEER (Seasonal Energy Efficiency Ratio) rating, which typically reaches up to 16 SEER. This impressive rating signifies that the unit is capable of delivering substantial energy savings compared to older models. By using less electricity to cool your home, the AMV8 not only impacts utility bills positively but also contributes to reducing your carbon footprint.

The Goodman AMV8 is built with a powerful and efficient scroll compressor, known for its ability to operate quietly while maintaining a smooth and reliable performance. The advanced design minimizes vibration, ensuring a quieter operation, which is particularly appealing for residential settings. Additionally, the unit features a multi-speed ECM blower motor that enhances airflow consistency and operational efficiency.

Construction quality is also noteworthy with the Goodman AMV8. The cabinet is made of durable galvanized steel, coated with a corrosion-resistant finish that protects against rust and weather-related wear and tear. This durability extends the lifespan of the unit and provides assurance of quality to consumers.

Another characteristic that elevates the AMV8 is its integrated comfort control system. This feature allows users to easily manage cooling settings, ensuring optimal comfort throughout the home. The intelligent design of the unit includes a communicator control board, which optimizes system performance and simplifies installation.

The Goodman AMV8 also incorporates environmentally conscious technologies, including the use of R-410A refrigerant. This refrigerant is known for its efficiency and lack of ozone depletion potential, aligning with standards for environmentally friendly HVAC options.

In summary, the Goodman AMV8 is a high-efficiency air conditioning unit that showcases impressive features such as a high SEER rating, a reliable scroll compressor, a durable exterior, and advanced comfort control capabilities. Its commitment to energy efficiency and environmental consideration make it an exemplary choice for those seeking a dependable and cost-effective cooling solution for their homes. Whether for new installations or replacements, the AMV8 stands as a testament to Goodman Manufacturing's dedication to quality and innovation in HVAC technology.
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