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Press the SYSTEM button until OFF is displayed, then press the and simultaneously
INSTALLER/CONFIGURATION MENU
Press Displayed Press or
Step Button(s) (Factory Default) to select Comments
1 System MS 2 SS1, HP2, HP1 Selects Single stage, Multi-stage, or Heat Pump
(Single stage or 2-stage) System Configuration
2 System FA SL Selects Fast or Slow Cycle Selection
3 System CL CL Selects Compressor Lockout CL OFF or ON
(OFF) (ON)
4 System CDL CDL Selects Backlight Display
(ON) (OFF)
5 System FA FA Selects Fast Second Stage ON or OFF
(ON) (OFF)
6 System 0 FLTR 50-1950 (increments of 50) Selects filter replacement run time
7 System 0°F 4 LO to 4 HI Selects Temperature Display Adjustment 4 LO to 4 HI
(Room Temperature)
8 System °F °C Selects temperature display F° or °C selection
9 System AU On OFF Selects AUTO Mode ON or OFF
(Not available on earlier models)
10 System LR LR 62 to LR89 Selects Limited HEAT range
(90)
11 System LR LR 46 to LR 82 Selects Limited COOL range
(45)
12 System CA CA Feature Not Available
(OFF) (ON)
13 System (ON) Selects Keypad Lockout
(OFF)
14 System 0 001 to 999 Selects Keypad lockout combination number
Press System to set code
15 System Returns to the OFF position
CONFIGURACONFIGURA
CONFIGURACONFIGURA
CONFIGURA
TION MENUTION MENU
TION MENUTION MENU
TION MENU
3) Select Compressor Lockout CL OFF or ON – Selecting
CL ON will cause the thermostat to wait 5 minutes before
turning on the compressor if the heating and cooling system
loses power. It will also wait 5 minutes minimum between
cooling and heating cycles. This is intended to help protect
the compressor from short cycling. Some newer compres-
sors already have a time delay built in and do not require
this feature. Your compressor manufacturer can tell you if
the lockout feature is already present in their system. When
the thermostat compressor time delay occurs it will flash the
setpoint for about five minutes.
4) Select Backlight Display – The display backlight improves
display contrast in low lighting conditions. When the C
terminal is powered, selecting backlight CdL ON will turn
the light on continuously. Select backlight OFF will keep
the light on momentarily after any key is pressed. When the
C terminal is not powered, this selection has no effect.
5) Select (Fast) Second Stage ON or OFF – In the run mode,
if the setpoint temperature is manually raised by 3°F (2°C)
or more above the actual temperature with the , and the
fast second stage feature is enabled, FA ON, the second
stage will energize immediately. With FA OFF, second
stage will not energize until the setpoint temperature is 1°F
or more above actual temperature for more than ten min-
utes.