Greenheck IG / IGX (464104 IOM) (Pre-2009) - Manual (Page 46)

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NOTE!
If the discharge temperature drops below the freeze temperature setting and remains below the
setting for longer than the time delay setting, the blower and burner will shut down to prevent the
discharge of damagingly cold air into the building.
NOTE!
The freeze temperature and time delay setting are set to the factory recommended 45ºF and 300
seconds respectfully. Only follow steps 13-16 if you wish to change the factory settings.
Step 13 Access the Freeze Temperature
Setting
From the program menu, use the up or down key to
navigate through the menu options until the display
reads “FtS”. Once the display reads “FtS,” press the
enter key. The display will change to the freeze
temperature setting.
Step 14 Edit the Setting
Use the up or down keys to change the freeze temperature setting. When the correct setting is displayed, press
the enter key to save the setting and return to the program menu.
Step 15 Access Time Delay Setting
From the program menu, use the up or down key to
navigate through the menu options until the display
reads “Fti.” Once the display reads “Fti,” press the
enter key. The display will change to the time delay
setting. The time is displayed in ten second
increments (1 = 10 sec).
Step 16 Edit the Setting
Use the up or down keys to change the time delay setting. When the correct setting is displayed, press the enter
key to save the setting and return to the program menu.
Step 12 Edit the Setting
Use the up or down keys to change the room override
setting. When the correct setting is displayed, press
the enter key to save the setting and return to the
program menu.
NOTE!
After modifying a setting, the enter key must be
pressed to save the change. If the enter key is
not pressed the display will return to the
program menu without saving the change.
Start-Up - 4:1 Electronic Modulation
Start-Up