Table of Contents

 

XII. Start-up Procedure and Adjustment

21

FURNACE OPERATION

21

FURNACE START-UP

21

FURNACE SHUTDOWN

21

GAS SUPPLY PRESSURE MEASUREMENT

22

WHITE RODGERS 36G22 GAS VALVE

22

GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT

23

WHITE RODGERS 36G22 GAS VALVE

23

GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY)

23

TEMPERTURE RISE

24

CIRCULATOR BLOWER SPEED ADJUSTMENT

24

CIRCULATOR BLOWER FAN TIMING ADJUSTMENT

24

XIII. Operational Checks

25

BURNER FLAME

25

AUXILIARY LIMIT CONTROL

25

PRIMARY LIMIT

25

XIV. Safety Circuit Description

25

GENERAL

25

INTEGRATED CONTROL MODULE

25

PRIMARY LIMIT

25

AUXILIARY LIMIT

25

ROLLOUT LIMITS

25

PRESSURE SWITCHES

25

FLAME SENSOR

26

XV. Troubleshooting

26

ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS

26

DIAGNOSTIC CHART

26

RESETTING FROM LOCKOUT

26

XVI. Maintenance

26

ANNUAL INSPECTION

26

FILTERS

26

FILTER MAINTENANCE

26

FILTER REMOVAL

27

UPRIGHT FILTER REMOVAL

27

INDUCED DRAFT AND CIRCULATOR BLOWER MOTORS

27

FLAME SENSOR (QUALIFIED SERVICER ONLY)

27

IGNITER (QUALIFIED SERVICER ONLY)

27

BURNERS

27

XVII. Before Leaving an Installation

27

XVIII. Repair and Replacement Parts

27

Troubleshooting Charts

28

Wiring Diagram

30

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.

IO-242C

3

05/05

 

 

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Goodman Mfg GDS8, GHS8 XII. Start-up Procedure and Adjustment, XIII. Operational Checks, XIV. Safety Circuit Description

GMS8, GHS8, GDS8 specifications

Goodman Manufacturing, a well-reputed name in the HVAC industry, offers a comprehensive range of heating and cooling solutions. Among their notable products are the GDS8, GHS8, and GMS8 series, each designed to meet diverse customer needs while providing exceptional performance and energy efficiency.

The Goodman GDS8 gas furnace is known for its remarkable efficiency and reliability. Boasting an AFUE (Annual Fuel Utilization Efficiency) rating of up to 80%, the GDS8 converts a significant portion of fuel into usable heat, ensuring lower energy bills for homeowners. This model features a multi-speed blower motor that optimizes airflow, enhancing temperature consistency throughout the home, and reducing noise levels during operation. The GDS8 comes equipped with a durable heat exchanger crafted from high-quality steel, ensuring longevity and optimal heat transfer.

On the other hand, the GHS8 series represents Goodman’s commitment to high-efficiency heating. With an AFUE rating of up to 96%, the GHS8 is engineered for maximum performance. Its two-stage heating system allows for better temperature control, enabling the furnace to operate quietly and efficiently. Another standout feature is the ComfortBridge technology, which enhances the system’s ability to communicate and adapt to the home’s specific heating needs. This feature optimizes energy usage and increases comfort levels in any environment.

The Goodman GMS8 model is an exceptional choice for homeowners looking for a reliable gas furnace with a focus on energy efficiency. Similar to its counterparts, the GMS8 also delivers an AFUE of up to 96.5%. This unit features an advanced modulating gas valve that adjusts heating output based on the temperature requirements, creating a consistent and comfortable indoor climate. The GMS8 is also equipped with a high-efficiency ECM blower motor, which reduces energy consumption while improving airflow.

All three models feature Goodman’s quality construction, including a heavy-gauge cabinet that minimizes noise and enhances durability. They also are backed by Goodman’s limited lifetime warranty on the heat exchanger and a 10-year limited warranty on parts, providing customers with peace of mind regarding their investment. These furnaces are designed with efficiency and comfort in mind, making the GDS8, GHS8, and GMS8 ideal choices for homeowners looking to enhance their indoor environment while keeping energy costs in check.