GF - D 19
Gas Valves
Setting Manifold Pressure
Using Installer Test Mode
Step 1
If convenient, the communicating comfort control can
be accessed as it is installed in the home. If not
convenient, the communicating comfort control can
be attached directly at the furnace for this procedure
before moving it to its final installation location.
Step 2
Re-apply 115 VAC to the furnace.
Step 3
Set the communicating Comfort Control to Installer
Test 3 (Figure 42). See the Installer’s Guide for the
communicating comfort control. Note that the
communicating Comfort Control will remain in Installer
Test for five minutes only unless the user adjusts
something on the control before the end of five
minutes.
Figure 40
Figure 41