
February1998 13 12074208
Program Mode
Accessing Program Mode
Twoprogrammingmodesareavailable.ModeAallows
readingrefrigeratorandfreezerthermistor
temperatures.ModeBisusedforallother
programmablefunctions.
1. Openrefrigeratordoor.
2. Press
DisplayOn
pad.
3. Press *pad.
4. Pressthefollowingsequenceofpadswithin6
seconds:
MaxRef,MaxFrz,MaxRef,MaxFrz.
5. Whenaccess is granted, tone will sound three time
andcontrolwillbeinProgramModeA.Unmarked
indicatorlightwillilluminate.
6. ToggletoProgramModeBbypressing
DisplayOn
pad.Unmarkedindicatorlightisoff.
EEPROM Update in Control Memory
EEPROMispermanentprogrammablememoryofthe
controlpanel.
• Entrytone,door audioalarmandstatusarestored
inEEPROMaftercontrolpanelisdeactivated.
• InformationstoredinEEPROMmemoryisnot
affectedbypowerloss.
Mode A Functions
Reading Temperature Display
Temperaturedisplaywillshowthermistortemperature
inbinarycodeddecimalformat(BCD).Indicatorlights1
through4representthetensdigitwith1 being themost
significantbit.Indicatorlights5through8represent
onesdigit with 5being the most significant bit. Positive
andnegativeareshownbyindicatorlight9;lightglows
toshownegativevalue
.
Indicator
1
2
3
4
5
6
7
8
Valuewhen
8
4
2
1
8
4
2
1
Coldest +/-
Degrees F.3 6
Add together all lit indicators
1through4according to their
values to obtain ten's column
digit. Example if 3 and 4 are lit
the tens column total 3 (2 + 1
= 3)
Add together all lit indicators 5
through 8 according to their
values to get one's column
digit. Example if 6 and 7 are lit
the one column total6 (4 +2
= 6). The example temperature
is 36º F. w ith coldest indicator
not lit.
Value
Freezer Thermistor Temperature
1. Choosefreezerthermistortemperaturedisplayby
pressing
FreezerTemp
pad.
2. Freezerthermistortemperaturedisplays.
Refrigerator Thermistor Temperature
1. ChooseRefrigeratorthermistortemperaturedisplay
bypressing
RefTemp
pad.
2. Refrigeratorthermistortemperaturedisplays.
Mode B Functions
AutomaticKeyboard Function
Activateanddeactivatekeyboardbytoggling
DisplayOff
pad.Ifhightemperatureindicatorglows,
keyboardwilldisableafter10minutes.Ifhigh
temperatureindicatorisoff,keyboardisalways
enabled.DONOTLEAVEKEYBOARDINENABLED
MODEAFTERPROGRAMMINGISCOMPLETE.
Door Alarm Delay
1. Press
AlarmOff
pad.Dooropenindicatorwillglow.
Onetemperatureindicatorshouldglowindicating
presentdelaysettinginminutes(indicator1means
1 minute, 2 means 2 minutes, etc.) Default delay is
3 minutes.
2. Press
Warmer
padtodecrease delayby1 minute.
3. Press
Colder
padtoincreasedelayby1minute.
Max Ref Run Time Duration
1. Press
MaxRef
pad.MaxReflightwillglow.One
temperatureindicatorshouldglowindicating
presentMaxRefruntimedurationin2hour
increments(indicator1means2hours,2means 4
hours,etc.)Defaultdelayis10hours.
2. Press
Warmer
padtodecreaseMaxRefdurationby
2hours.
3. Press
Colder
padtoincreaseMaxRefdurationby2
hours.
Max Frz Run Time Duration
1. Press
MaxFrz
pad.Max Frzlight will glow.One
temperatureindicatorshouldglowindicating
presentMaxFrzruntimedurationin4hour
increments(indicator1means4hours,2means 8
hours,etc.)Defaultdelayis24hours.
2. Press
Warmer
padto decreaseMaxFrzdurationby
4hours.
3. Press
Colder
padtoincreaseMaxFrzdurationby4
hours.