30
valuebetween 0 and 60 will be shown in theminutes display. SeeOperational
Information and Wiring Diagrams for further explan ation of dry contact
configurationand use. Tochange the period orminutes, press thesoft key below
the period or minutes and then use the UP/DOWN button sto ch ange to the
desiredvalue.
Default is OF (off).
Option 20 — Outdoor Air Temperatu reOffset A djustment
Thisselection allows the calibration,or deliberate miscalibrationof the outdoor
airtem perature sensor reading. The selection ranges from --5 to +5_F.
Defaultis 0.
Option21 — Keypad Lockout (programmablemodels only)
This selection allows the installer to limit access to th e keypad. Selections are OF
(off),1, 2, 3.
OF (off) — The user has full access to the keyp ad.
1 —T he user has accessto m odify setpoints, time of day.
2 — The user has access to change the setpo ints only.
3 — The entirekeypad is locked. When a button is pressed,the backlight will
turnon but none of the operating parameterswill be changed.
Whenthe keypad lock selectionis turned on, the padlockicon will be displayed.
Tounlock the keypad,press and hold the UP/DOWNbuttons simultaneouslyfor
fiveseconds. When the keypad is unlocked,the padlock icon willturn off. The
keypad willremain unlocked for two minutesafter the last buttonpress. After
two minutes with no button presses, the keypad will lock again. The keyp adw ill
not lock in the software configuratio n mode or in the installer test mode.
Default is OF (off).