GREENTEK T-3 PUSH-BUTTON TIMER 20-40-60 MINUTES Manufacturer: Imperial Air Description: Greentek T-3 Push-button Timer 20/40/60 min. (3-wire) Compatibility: Please see Documents folder. Manufacturers’ Old Part Number: 100098 Manufacturer's New Part Number: 463018 Timer Compatible with all Legacy Honeywell TrueFRESH Air Exchangers Timer Compatible with the Greentek PH, PE, XPH, XDH, C3.14, SS3.80, and LCH Series. Simple user interface LED provides instant system feedback Lexan Graphic Touch Pad 20/40/60 minute cycle times Features • Press the button once the LED comes on then release, this activates the ventilation system to high speed for 20 minutes. • Press the button until the LED blinks 2 times then release, this activates the ventilation system to high speed for 40 minutes. • Press the button until the LED blinks 3 times then release, this activates the ventilation system to high speed for 60 minutes. • To turn off press button once, this will deactivate T-3 push button timer and your ventilation system will return to previous settings.