Greenheck IG / IGX (464104 IOM) (Pre-2009) - Manual (Page 23)

23
Installation
Installation - Gas Piping
Step 3 Connect the Supply Gas Line
A manual shut off valve (gas cock), 1/8 inch plugged
test port and 6 inch drip leg must be installed prior to
the gas train. The valve and the test port must be
accessible for the connection of a test gauge. Supply
gas connections must be made by a qualified installer
and are not furnished by Greenheck.
Step 2 Install Additional Regulator if
Required
When the supply gas pressure exceeds the maximum
gas pressure shown on the unit’s nameplate, an
additional regulator (by others) is required to reduce
the pressure. The regulator must have a listed leak
limiting device or it must be vented to the outdoors.
From
Gas
Supply
Gas Cock
1/8 in. Plugged Tap
6 in. Trap
Ground Joint Union
Step 4 Test the System for Leaks
Check both the supply lines and the factory piping for
leaks. Apply a soap and water solution to all piping
and watch for bubbling which indicates a leak.
WARNING!
The factory piping has been checked for leaks, but should be rechecked due to shipping and
installation.
WARNING!
NEVER test for a gas leak with an open flame.
Supply Gas Pressure
Range (in. wc.)
Minimum Maximum
Natural 6 14
LP 10 14
Make-Up
Air Unit