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
All gas piping must be installed in compliance with local codes and utility regulations. Some local regulations require the installation of a manual main
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
Denotes field-
provided and | Automatic | |
Gas Valve | ||
installed | ||
(with manual | ||
components. | ||
| ||
| Ground Joint |
| Burner | |
Some Utilities | Assembly | |
| ||
Require Shut- |
| |
Off Valve to |
| |
be 4 to 5 feet |
| |
Above Floor | Ground | |
Joint | ||
Union | ||
with 1/8" NPT | ||
Automatic Gas Valve | ||
Plugged Tap |
Denotes field- provided and
| Union |
Burner | |
| |
Assembly |
|
Some Utilities Require Shut- Off Valve to be 4 to 5 feet Above Floor
with 1/8" NPT
Plugged Tap
(with manual |
installed components.
Burner Viewport
Figure 22. Typical Gas Service Connection
22