BLOWER PERFORMANCE SPECIFICATIONS

Ramping Profile

Note: 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.

Switch Bank: S4

Ramping

DIP Switch No.

Profiles

5

6

 

 

 

A*

OFF

OFF

B

ON

OFF

C

OFF

ON

D

ON

ON

(*Indicates factory setting)

 

 

100% CFM

 

 

 

100% CFM

 

 

OFF

 

 

 

OFF

 

 

 

 

 

 

1 min

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100% CFM

 

 

 

100% CFM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

50% CFM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/2 min

 

 

 

 

 

 

 

 

 

 

 

 

 

1 min

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 one (1) minute OFF delay at 100% of the cooling airflow is provided.

OFF

100% CFM

OFF

Profile C: ramps up to 82% 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.

OFF

OFF

Profile D: ramps up to 50% of the demand for 1/2 minute, then ramps to 82% 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.

1.Units are shipped without filter(s). CFM in chart is without filter(s).

2.All furnaces shipped with heating speed set at "B" and cooling speed set at "D". Installer should adjust blower speed as needed. The first task is to determine the proper aiflow for the cooling system.

3.For most cooling applications, about 400 CFM per ton is desirable.

4.The chart is for information only. For satisfactory operation, external static pressure not to exceed value shown on rating plate.

5.Do not operate above 0.5" w.c. ESP in heating mode. Operating between 0.5" w.c. and 0.8" w.c. is tabulated for cooling purposes only.

6.* Motor CFM minimum.

32

Page 32
Image 32
Goodman Mfg Goodman 90%-95% Gas Furnace Units, GCVC9/GMVC95, ACVC9/AMVC95 service manual Ramping Profile

Goodman 90%-95% Gas Furnace Units, ACVC9/AMVC95, GCVC9/GMVC95 specifications

Goodman Manufacturing is a prominent name in the HVAC industry, known for providing energy-efficient solutions that cater to both residential and commercial environments. Among its offerings, the Goodman GCVC9/GMVC95 and ACVC9/AMVC95 models stand out as top-tier gas furnace units, with efficiency ratings between 90% and 95%. These furnaces provide an excellent balance of performance, reliability, and affordability.

The GCVC9 and GMVC95 gas furnace units are designed with advanced features that ensure optimal heating and comfort. One of the key characteristics of these models is their energy efficiency. With Annual Fuel Utilization Efficiency (AFUE) ratings of up to 95%, these furnaces convert nearly all the fuel they consume into heat, resulting in significant cost savings on energy bills. This makes them an ideal choice for homeowners looking to reduce their carbon footprint while maintaining a comfortable indoor environment.

These units are equipped with a two-stage gas valve and a variable-speed blower motor. The two-stage gas valve allows for precise temperature control by providing two levels of heating output, ensuring that the furnace runs at lower capacities during milder conditions and ramping up when more heat is needed. The variable-speed blower motor enhances comfort by providing consistent airflow, reducing temperature fluctuations, and operating more quietly than single-speed motors.

Another notable feature is the firing system, which utilizes a hot surface igniter for reliable operation. This technology enhances safety and performance, eliminating the need for a pilot light and minimizing gas waste. Additionally, both models are designed for easy installation and maintenance, with features like a compact design and convenient access to internal components.

Durability is also a hallmark of Goodman furnaces. The units are constructed with high-quality materials, including a heavy-gauge steel cabinet and a durable powder-coated finish to resist corrosion. Furthermore, Goodman offers exceptional warranties, including a lifetime heat exchanger warranty, providing peace of mind for homeowners.

In conclusion, the Goodman GCVC9/GMVC95 and ACVC9/AMVC95 gas furnace units are engineered for efficient heating with advanced technologies that enhance performance and comfort. Their high AFUE ratings, reliable ignition system, and durable construction make them excellent choices for anyone looking to invest in a reliable heating solution. With Goodman at the helm, homeowners can enjoy efficient heating without compromising on comfort or cost.