Goodman Mfg GDS8, GHS8, GMS8 instruction manual Circulating AIR and Filters, Ductwork Air

Page 21

Sizing Between First and Second Stage Regulator*

Maximum Propane Capacities listed are based on 2 psig pressure drop at 10 psig setting. Capacities in 1,000 BTU/hour.

Pipe or

 

Tubing Size, O.D. Type L

 

 

Nominal Pipe Size

 

Tubing

 

 

 

Schedule 40

 

 

 

 

 

 

 

 

 

Length,

3/8"

1/2"

5/8"

3/4"

7/8"

1-1/8"

1/2"

3/4"

1"

1-1/4"

1-1/2"

Feet

 

 

 

 

 

 

 

 

 

 

 

10

39

92

199

329

501

935

275

567

1,071

2,205

3,307

20

26

62

131

216

346

630

189

393

732

1,496

2,299

30

21

50

107

181

277

500

152

315

590

1,212

1,858

40

19

41

90

145

233

427

129

267

504

1,039

1,559

50

18

37

79

131

198

376

114

237

448

91

1,417

60

16

35

72

121

187

340

103

217

409

834

1,275

80

13

29

62

104

155

289

89

185

346

724

1,066

100

11

26

55

90

138

255

78

162

307

630

976

125

10

24

48

81

122

224

69

146

275

567

866

150

9

21

43

72

109

202

63

132

252

511

787

200

8

19

39

66

100

187

54

112

209

439

665

250

8

17

36

60

93

172

48

100

185

390

590

X. CIRCULATING AIR AND FILTERS

Ductwork - Air

WARNING

NEVER ALLOW THE PRODUCTS OF COMBUSTION, INCLUDING CARBON MONOXIDE, TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR SUPPLY.

Duct systems and register sizes must be properly designed for the CFM and external static pressure rating of the furnace. Ductwork should be designed in accordance with the recommended methods of “Air Conditioning Contractors of America” Manual D.

A duct system must be installed in accordance with Standards of the National Board of Fire Underwriters for the Installation of Air Conditioning, Warm Air Heating and Ventilating Systems. Pamphlets No. 90A and 90B.

A closed return duct system must be used, with the return duct connected to the furnace. NOTE: Ductwork must never be attached to the back of the furnace. Supply and return connections to the furnace may be made with flexible joints to reduce noise transmission. To prevent the blower from interfering with combustion air or draft when a central return is used, a connecting duct must be installed between the unit and the utility room wall. A room, closet, or alcove must not be used as a return air chamber.

When the furnace is used in connection with a cooling unit, the furnace should be installed in parallel with or on the upstream side of the cooling unit to avoid condensation in the heating element. With a parallel flow arrangement, the dampers or other means used to control the flow of air must be adequate to prevent chilled air from entering the furnace and, if manually operated, must be equipped with means to prevent operation of either unit unless the damper is in the full heat or cool position.

When the furnace is installed without a cooling coil, it is recommended that a removable access panel be provided in the outlet air duct. This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be viewed for visual light inspection or such that a sampling probe can be inserted into the airstream. The access panel must be made to prevent air leaks when the furnace is in operation.

When the furnace is heating, the temperature of the return air entering the furnace must be between 55°F and 100°F.

When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by a duct sealed to the furnace casing and terminating outside the space containing the furnace.

FILTERS - READ THIS SECTION BEFORE INSTALLING THE RETURN AIR DUCTWORK

Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship with this furnace, but must be provided by the installer. Filters must comply with UL900 or CAN/ULCS111 standards. If the furnace is installed without filters, the warranty will be voided.

NOTE: An undersized opening will cause reduced airflow. The bottom return is set up as a knock out.

UPRIGHT INSTALLATIONS

Depending on the installation and/or customer preference, differing filter arrangements can be applied. Filters can be installed in the central return register or a side panel external filter rack kit (upflows), or the ductwork above a counterflow furnace. As an alternative, a media air filter or electronic air cleaner can be used as the requested filter. The following figures show possible filter locations.

CIRCULATION AIR FILTERS

One of the most common causes of a problem in a forced air heating system is a blocked or dirty filter. Circulating air filters must be inspected monthly for dirt accumulation and replaced if necessary. Failure to maintain clean filters can cause premature heat exchanger failure.

A new home may require more frequent replacement until all construction dust and dirt is removed. Circulating air filters are to be installed in the return air duct external to the furnace cabinet.

MINIMUM FILTER SIZES

FURNACE INPUT

FILTER SIZE

TYPE

45M

160 in2

permanent

68M

241 in2

permanent

90M

320 in2

permanent

115M

400 in2

permanent

135M

370 in2

permanent

45M

320 in2

disposable

68M

483 in2

disposable

90M

640 in2

disposable

115M

800 in2

disposable

135M

738 in2

disposable

PERMANENT NOMINAL 600 C.F.M.

DISPOSABLE NOMINAL 300 C.F.M.

HORIZONTAL INSTALLATIONS

Filters must be installed in either the central return register or in the return air duct work.

XI. SEQUENCE OF OPERATION

(INTEGRATED IGNITION CONTROL)

Refer to Timing Charts for sequencing.

POWER UP

1.115 VAC power applied to furnace.

2.Integrated ignition control performs internal checks.

3.Integrated ignition LED will light.

4.Integrated ignition control monitors safety circuits continuously.

5.Furnace awaits call from thermostat.

IO-242C

21

05/05

 

 

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Contents Installation & Operating Table of Contents XIV. Safety Circuit Description XII. Start-up Procedure and AdjustmentXV. Troubleshooting XVI. MaintenanceTo the Installer II. SafetyHomeowner Notice To the OwnerAmerican National Standards Institute III. Product ApplicationNational Fire Protection Association CSA InternationalIV. Location Requirements and Considerations National Fire Protection Association, IncGeneral Horizontal Installation Clearances and AccessibilitySuspended Furnace Existing Furnace RemovalZ223.1 Section General Thermostat InfluencesEquipment Located in Unconfined Spaces Equipment Located in Confined Spaces Space, UnconfinedVI. Category I Venting Vertical Venting Specially Engineered InstallationsLouvers and Grilles Model Minimum VentVII. Exterior Masonry Chimneys Category I Furnaces only Checklist SummaryUpflow Rotated Induced Draft Blower Typical Multiple Flue Clay Tile ChimneyTermination 10 Feet Or Less From Ridge, Wall or Parapet Termination More Than 10 Feet From Ridge, Wall or ParapetCheck 1 Proper Chimney Termination Check 7 Complete the Installation Check 4 Debris in CleanoutCheck 3 Chimney Crown Condition Check 5 Liner ConditionFIX 2 -CHANGE Venting Arrangements VIII. Electrical ConnectionsFIX 3 Rebuild the Crown FIX 4 ReliningIntegrated Ignition Control Wiring HarnessVolt Line Connections Fossil Fuiel ApplicationsVolt Thermostat Wiring Typical Field Wiring 24 VAC Control CircuitSetting the Heat Anticipator Heating Heating/Cooling Room ThermostatIX. GAS Supply and Piping TwinningHigh Altitude Derate 904BNA does not require a switch change Pressure Switch Changes Furnace input Kbtu/hrFiring Rate Propane GAS ConversionUpflow Installations General Furnace LayoutGAS Piping Connections General Counterflow Installations Propane Gas Installation TypPropane GAS Piping Charts GAS Piping ChecksCirculating AIR and Filters XI. Sequence of Operation Integrated Ignition ControlDuctwork Air XII. START-UP Procedure and Adjustment White-Rodgers Model 36F22White-Rodgers Model 36G22 Measuring Inlet Gas Pressure Alternate Method White-Rodgers Model 36G22GAS Supply Pressure Measurement WHITE-RODGERS 36F22 GAS ValveGAS 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 Igniter Qualified Servicer only Flame Sensor Qualified Servicer onlyUpright Filter Removal Induced Draft and Circulator Blower MotorsTroubleshooting 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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