Goodman Mfg VC8 instruction manual Before Leaving AN Installation, Repair and Replacement Parts

Page 38

MISCELLANEOUS

BURNERS

Visually inspect the burner flames periodically during the heat- ing season. Turn on the furnace at the thermostat and allow several minutes for flames to stabilize, since any dislodged dust will alter the flames normal appearance. Flames should be stable, quiet, soft, and blue (dust may cause orange tips but they must not be yellow). They should extend directly outward from the burners without curling, floating, or lifting off. Flames must not impinge on the sides of the heat exchanger firing tubes.

INDUCED DRAFT AND CIRCULATOR BLOWERS

The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No fur- ther lubrication is required. Check motor windings for accumu- lation of dust which may cause overheating. Clean as neces- sary.

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 emery cloth or steel wool. Following cleaning, the flame sense signal should be as indi- cated in the Specifications Sheet.

FLUE PASSAGES (QUALIFIED SERVICER ONLY)

The heat exchanger flue passageways should be inspected at the beginning of each heating season. If necessary, clean the passageways as outlined below.

1.Turn OFF the electrical power and gas supply to the furnace.

2.Disconnect the gas line and remove the burner/ manifold assembly by removing the screws securing the assembly to the partition panel.

3.Disconnect the flue pipe system from the induced draft blower.

4.Remove the induced draft blower and collector box cover.

5.Clean the primary heat exchanger tubes using a wire brush attached to a length of high grade stainless steel cable, such as drain cleanout cable. Attach a variable speed reversible drill to the other end of the cable. Slowly rotate the cable with the drill and insert it into one of the heat exchanger tubes. While reversing the drill, work the cable in and out several times to obtain sufficient cleaning. Repeat for each tube.

6.Clean residue from furnace using a vacuum cleaner.

7.Replace the parts removed in the previous steps in reverse order.

8.Turn on electrical power and gas to furnace. Check for leaks and proper unit operation.

9.Severe heat exchanger fouling is an indication of an operational problem. Perform the checks listed in Startup Procedure and Adjustments to reduce the chances of repeated fouling.

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

Blower Motor

Gas Manifold

Blower Wheel

Natural Gas Orifice

Blower Mounting Bracket

Propane Gas Orifice

Blower Cutoff

Igniter

Blower Housing

Flame Sensor

Inductor

Rollout Limit Switch

Heat Exchanger

Primary Limit Switch

Auxiliary Limit Switch

Pressure Switch

Integrated Control Module

Induced Draft Blower

Transformer

Door Switch

 

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Contents Installation Instructions for *D, MVC8 GAS Furnace Upright Installations Table of Contents Safety Precautions What to do if YOU Smell GASProduct Application Keep this literature in a safe place for future referenceLocation Requirements and Considerations Product DescriptionCSA International National Fire Protection Association, IncClearances and Accessibility Following vent testing procedure is reproduced from Combustion & Ventilation CategoryExterior Masonry Chimneys Category I Furnaces only Category I Venting Vertical VentingExteriormasonrychimneyscategoryifurnacesonly Proper Chimney Termination? Check Check 3 Chimney Crown Condition Electrical Connections High Voltage Important Note Thermostat Wiring Diagrams Single Stage Heating with Single Stage CoolingAccessories Wiring GAS Supply and PipingCirculating AIR and Filters Gas Altitude Kit Orifice Manifold PressureGeneral Furnace Layout Propane Gas Installation Typ START-UP Procedure and Adjustment Checking Static Pressure 80% Furnace Shown, 90% SimilarUpright Installations White-Rodgers Model 36G54 Connected to Manometer White-Rodgers Model 36G54 Two-StageHoneywell Model VR9205 Connected to Manometer Honeywell Model VR9205 Two-StageMeasuring Inlet Gas Pressure Alt. Method Temperature Rise Measurement ExampleSwitch Bank S4 Switch Bank S4 Heat Off Delay DipswitchesComfortnet System Comfortnet SystemSystem Wiring using Four-Wires CTK01AATo step to the next item Configuration Cool Airflow CL CFM Operational Checks & Safety Circuit Description Normal Sequence of OperationOperational Checks Troubleshooting Troubleshooting & MaintenanceSafety Circuit Description Maintenance MiscellaneousBefore Leaving AN Installation Repair and Replacement PartsTroubleshooting Chart InternalLimit Chart MessageInvalid Trips Status Codes DIP Switches AIR Flow DataMVC8AA Wiring Diagram RD WHMVC8AB, *DVC8AA Wiring Diagram

VC8 specifications

Goodman Manufacturing has established itself as a leading provider of quality heating, ventilation, and air conditioning (HVAC) systems. Among its impressive lineup is the Goodman VC8, a versatile and efficient variable-capacity air conditioner that stands out due to its innovative design and advanced technologies.

The Goodman VC8 is known for its superior energy efficiency, featuring a SEER (Seasonal Energy Efficiency Ratio) rating higher than 20. This means that it operates efficiently across various climatic conditions, ensuring optimal cooling with minimal energy consumption. The high SEER rating not only translates to lower energy bills but also contributes to a reduced environmental footprint, making it a smart choice for eco-conscious consumers.

One of the standout features of the VC8 is its variable-speed compressor, which allows the system to adjust its output based on the cooling needs of the space. This technology enables the unit to run at lower speeds for longer periods, maintaining a consistent temperature while reducing energy usage. The variable-speed operation also contributes to quieter operation compared to traditional air conditioning systems. Homeowners can enjoy a peaceful indoor environment without the disruptive noise commonly associated with air conditioning units.

In terms of comfort, the Goodman VC8 employs advanced humidity control features, ensuring that moisture is efficiently managed within the space. This not only enhances comfort levels but also helps to prevent issues related to excessive humidity, such as mold growth and structural damage.

The VC8 is designed for reliable performance and durability, with its robust construction and dependable components. Goodman manufactures its products with high-quality materials to withstand the rigors of daily use and various weather conditions, ensuring long-lasting operation.

Additionally, the VC8 incorporates smart technology features, including compatibility with Wi-Fi-enabled thermostats. Homeowners can easily monitor and control their system remotely, providing convenience and peace of mind.

The Goodman VC8 is an exemplary solution for those looking for an energy-efficient, advanced air conditioning system. With its variable-speed compressor, excellent humidity control, durable construction, and smart features, it promises comfort and reliability suitable for any residential space. By choosing Goodman, homeowners can invest in a quality HVAC system designed to meet modern needs and preferences.
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