York LX series User Manual

If, for any reason, you desire to return all the stored settings back to
the factory default settings, follow the instructions below.
Page 31
Resetting the Thermostat to the
Factory Default Settings (for default values see page 34)
WARNING: This will reset all Time Period and Advanced
Programming to the default settings. Any information entered
prior to this reset may be permanently lost.
SETUP
Press and hold SETUP for 5 seconds. All icons will appear on the display.
H
Lo
Program ONOFF
Outdoor
Fan On
COOL SET
A HEAT ETUX S
Day Night
Morning
Evening
Setup Step
2nd3rd
Stage
Am
Pm
18:88
188
188
88
188
After all the icons appear, release SETUP. Press and hold FAN for 5 seconds.
DEFAULTS will appear on the display.
Keep pressing the SETUP
button until you see this
screen.
Keep pressing the FAN
button until you see this
screen.
After DEFAULTS appears, release FAN. Press MODE to return to normal
operation.
MODE
DEFAULTS
Installer Setup

York LX series Specifications

General

Refrigerant	R-410A
Series	LX
Cooling Capacity	1.5 to 5 tons
Warranty	10-year limited warranty
Sound Level	As low as 72 dBA (depending on model)