Nordyne G6RC 90+, G6RL 90+, G6RD 93+ installation instructions GAS Supply and Piping, Leak Check

Page 22

the collector box is clear of any debris or obstructions.

2.Replace this tube and insure the fit to the header spout is air tight. Air will be drawn into the header if this connection is not tight.

3.Check other tube connections along the drain system. Insure that all are air tight.

NOTE: Industry research studies indicate that when condensate is routed to an active drain, household detergents, etc., buffer its acidity. If the drain is not actively used or if codes require, obtain a neutralizer kit (usually contains lime- stone). Proper drains and connections to the condensate tubing are required as NORDYNE cannot be held responsible for water leakage which occurs due to loose hose connections or improperly sealed drain line pipes.

GAS SUPPLY AND PIPING

This furnace is equipped for either left or right side gas entry. Typical gas service hook-ups are shown in Figure 22. When making the gas connection provide clearance between the gas supply line and the entry hole in the furnace casing to avoid unwanted noise and/or damage to the furnace.

All gas piping must be installed in compliance with local codes and utility regulations. Some local regulations require the installation of a manual main shut-off valve and ground joint union external to the furnace. The shut-off valve should be readily accessible for service and/or emergency use. Consult the local utility or gas supplier for additional requirements regarding placement of the manual main gas shut-off. In the absence of local codes the gas line installa-

tion must comply with the latest edition of the National Fuel Gas Code (ANSI Z223.1) or (CAN/ CGA B149) installation codes.

A 1/8" NPT plugged tap must be installed in the gas line to the unit for use when measuring the gas supply pressure. The plug should be readily accessible for service use. A drip leg should be installed in the vertical pipe run to the unit. Table 5 lists gas flow capacities for standard pipe sizes as a function of length in typical applications based on nominal pressure drop in the line.

NOTE: Gas piping must not be run in or through air ducts, chimneys, gas vents, elevator shafts, etc.

Compounds used on threaded joints of gas piping must be resistant to the actions of lique- fied petroleum gases.

The main manual gas valve and main power disconnect to the furnace must be properly labeled by the installer in case emergency shut- down is required.

!CAUTION:

Do not use matches, lighters, candles, or other sources of open flame to check for gas leaks.

Leak Check

After the gas piping to the furnace is complete, all connections must be tested for gas leaks. To check for leaks use only a soap and water solution or other approved method.

Burner Viewport

Roll-Out Limit

Denotes field-

provided and

Automatic

Gas Valve

installed

(with manual

components.

shut-off)

 

 

Ground Joint

 

Burner

Some Utilities

Assembly

 

Require Shut-

 

Off Valve to

 

be 4 to 5 feet

 

Above Floor

Ground

Shut-Off Valve

Joint

Union

with 1/8" NPT

Automatic Gas Valve

Plugged Tap

Denotes field- provided and

 

Union

Burner

Roll-OutLimit

 

Assembly

 

Some Utilities Require Shut- Off Valve to be 4 to 5 feet Above Floor

Shut-Off Valve

with 1/8" NPT

Plugged Tap

(with manual shut-off)

installed components.

Burner Viewport

Figure 22. Typical Gas Service Connection

22

Image 22
Contents Installation Instructions What to do if YOU Smell GASPage Table of Contents Dimensions Upflow G6RC & G6RD FurnacesDownflow G6RL Furnace Furnace Airflow Data High 1910 1860 1780 1700 1620 1520 1420Model Input Motor Number Btuh Speed Installation Requirements Requirements and Codes Clearances to Combustible MaterialsLocation Horizontal InstallationsSupply AIR Plenum Installation Downflow Warning G6RL ModelsCirculating AIR Supply Furnace on a Concrete SlabReturn Air Venting and Combustion AIR RequirementsFree Area Minimum40,000 100 sq. 60,000 80,000 Installation In a Confined Space Air Requirements For One-Pipe InstallationInstallation In An Unconfined Space Air From InsideVent Pipe Length and Diameter Venting RequirementsVent Pipe Material Air Directly Through An Exterior WallExample Vent Pipe InstallationSolution Pipe Routing and SupportG6RC & G6RD Upflow Furnaces G6RL Downflow FurnacesG6RL Downflow Furnaces G6RC & G6RD UpflowFurnaces G6RC & G6RD Upflow FurnacesLocation of Outdoor Terminations Vent Termination ClearancesAlternate Horizontal Vent Installation Horizontal VentingVent Freezing Protection Vertical VentingConcentric Vent Termination Drainage of Condensate from Furnace Vertical Vent TerminationGAS Supply and Piping Leak CheckNatural Gas High Altitude Conversion ConversionHigh Altitude Application LP/Propane Gas Sea Level and High Altitude ConversionElectrical Wiring Line Voltage WiringFurnace Rating Orifice Drill Size Plate Input Btu/h Nat START-UP and AdjustmentsLow Voltage Wiring Above Sea LevelVerifying and Adjusting Firing Rate Start-Up ProcedureElectrical Data Verifying and Adjusting Temperature Rise Verifying Burner OperationGAS Flow Rate Cubic Feet PER Hour Gas Flow RateVerifying Operation of the Supply Air Limit Switch Description of ComponentsG6RC, G6RD and G6RL Integrated Control Board System Diagram For G6RC, G6RD and G6RL Residential FurnacesMaintenance System Operation InformationG6RL Downflow Furnace Location of Major ComponentsCooling Mode Heating ModeSequence of Operation Furnace Fails to Operate Fan ModeTwinning of Two Furnaces INSTALLATION/PERFORMANCE Check List Fuel Type¢707931*¤