Goodman Mfg GDS8, GHS8, GMS8 Integrated Ignition Control, Wiring Harness, Volt Line Connections

Page 15

CAUTION

LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.

WARNING

TO AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR, IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE NATIONAL ELECTRIC

CODE.

WIRING HARNESS

The wiring harness is an integral part of this furnace. Field alteration to comply with electrical codes should not be required. Wires are color coded for identification purposes. Refer to the wiring diagram for wire routings. If any of the original wire as supplied with the furnace must be replaced, it must be replaced with wiring material having a temperature rating of at least 105° C. Any replacement wiring must be a copper conductor.

115VOLT LINE CONNECTIONS

Before proceeding with electrical connections, ensure that the supply voltage, frequency, and phase correspond to that specified on the unit rating plate. Power supply to the furnace must be NEC Class 1, and must comply with all applicable codes. The furnace must be electrically grounded in accordance with local codes or, in their absence, with the latest edition of The National Electric Code, ANSI NFPA 70 and/or The Canadian Electric Code CSA C22.1.

Use a separate fused branch electrical circuit containing properly sized wire, and fuse or circuit breaker. The fuse or circuit breaker must be sized in accordance with the maximum overcurrent protection specified on the unit rating plate. An electrical disconnect must be provided at the furnace location.

Line voltage wiring must enter into the junction box provided with the furnace.

NOTE: Line polarity must be observed when making field connections.

FOSSIL FUIEL APPLICATIONS

This furnace can be used in conjunction with a heat pump in a fossil fuel application. A fossil fuel application refers to a combined gas furnace and heat pump installation which uses an outdoor temperature sensor to determine the most cost efficient means of heating (heat pump, gas furnace, or both).

A heat pump thermostat with two stages of heat is required to properly use a furnace in conjunction with a heat pump. Refer to the fossil fuel kit installation instructions for additional thermostat requirements.

Strictly follow the wiring guidelines in the fossil fuel kit installation instructions. All furnace connections must be made to the furnace integrated control module and the FURNACE terminal strip on the fossil fuel control board.

JUNCTION BOX RELOCATION

WARNING

TO AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR, IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE NATIONAL ELECTRIC CODE.

WARNING

EDGES OF SHEET METAL HOLES MAY BE SHARP. USE GLOVES AS A PRE- CAUTION WHEN REMOVING HOLE PLUGS.

Line voltage connections can be made through either the right or left side panel. The furnace is shipped configured for a left side electrical connection. To make electrical connections through the opposite side of the furnace, the junction box must be relocated to the left side prior to making electrical connections. To relocate the junction box, perform the following steps.

WARNING

TO PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK, DISCONNECT ELECTRICAL POWER.

1.Remove both doors from the furnace.

2.Remove and save the screws holding the junction box to the left side of the furnace.

3.Models that have the juction box located in the blower compartment will need to rotate the junction box 180 degrees. Models that have the junction box located in the burner compartment will need to move the juction box directly over.

4.Attach the junction box to the right side of the furnace, using the screws removed in step 2.

5.Check the location wiring. Confirm that it will not be damaged by heat from the burners or by the rotation of the fan. Also confirm that wiring location will not interfere with filter removal or other maintenance.

After the junction box is in the desired location, use washers to connect field-supplied conduit to the junction box in accordance with NEC and local codes. Connect hot, neutral, and ground wires as shown in the furnace wiring diagram. The wires and ground screw are located in the furnace junction box.

Low voltage wires may be connected to the terminal strip.

IMPORTANT NOTE: To avoid possible equipment malfunction, route the low voltage wires to avoid interference with filter removal or other maintenance.

Integrated Ignition Control

IO-242C

15

05/05

 

 

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Contents Installation & Operating Table of Contents XVI. Maintenance XII. Start-up Procedure and AdjustmentXIV. Safety Circuit Description XV. TroubleshootingTo the Owner II. SafetyTo the Installer Homeowner NoticeCSA International III. Product ApplicationAmerican National Standards Institute National Fire Protection AssociationIV. Location Requirements and Considerations National Fire Protection Association, IncGeneral Existing Furnace Removal Clearances and AccessibilityHorizontal Installation Suspended FurnaceZ223.1 Section General Thermostat InfluencesEquipment Located in Unconfined Spaces Equipment Located in Confined Spaces Space, UnconfinedModel Minimum Vent Specially Engineered InstallationsVI. Category I Venting Vertical Venting Louvers and GrillesTypical Multiple Flue Clay Tile Chimney Checklist SummaryVII. Exterior Masonry Chimneys Category I Furnaces only Upflow Rotated Induced Draft BlowerTermination 10 Feet Or Less From Ridge, Wall or Parapet Termination More Than 10 Feet From Ridge, Wall or ParapetCheck 1 Proper Chimney Termination Check 5 Liner Condition Check 4 Debris in CleanoutCheck 7 Complete the Installation Check 3 Chimney Crown ConditionFIX 4 Relining VIII. Electrical ConnectionsFIX 2 -CHANGE Venting Arrangements FIX 3 Rebuild the CrownFossil Fuiel Applications Wiring HarnessIntegrated Ignition Control Volt Line ConnectionsHeating Heating/Cooling Room Thermostat Typical Field Wiring 24 VAC Control CircuitVolt Thermostat Wiring Setting the Heat AnticipatorIX. GAS Supply and Piping TwinningHigh Altitude Derate Propane GAS Conversion Pressure Switch Changes Furnace input Kbtu/hr904BNA does not require a switch change Firing RateUpflow Installations General Furnace LayoutGAS Piping Connections General GAS Piping Checks Propane Gas Installation TypCounterflow Installations Propane GAS Piping ChartsCirculating AIR and Filters XI. Sequence of Operation Integrated Ignition ControlDuctwork Air XII. START-UP Procedure and Adjustment White-Rodgers Model 36F22White-Rodgers Model 36G22 WHITE-RODGERS 36F22 GAS Valve White-Rodgers Model 36G22Measuring Inlet Gas Pressure Alternate Method GAS Supply Pressure MeasurementGAS Input Rate Measurement Natural GAS only GAS Manifold Pressure Measurement and AdjustmentTemperature Rise Measurement Adjustment SwitchesXIII. Operational Checks XIV. Safety Circuit Description XV. TroubleshootingBurner Flame XVI. Maintenance Induced Draft and Circulator Blower Motors Flame Sensor Qualified Servicer onlyIgniter Qualified Servicer only Upright Filter RemovalTroubleshooting Chart Continuously Wiring Diagram for GMS8/GDS8/GHS8 Are Subject to Change Without Notice
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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.
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