Nordyne G6RC 90+, G6RL 90+ Gas Supply And Piping, Leak Check, Typical Gas Service Connection

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