Unique Electronic Control Input Operations; Temperature Units Selection Mode - Sub-Zero 700TC-3 Service Manual

Integrated
Integrated

UNIQUE ELECTRONIC CONTROL INPUT OPERATIONS

The following pages illustrate unique input operations performed at the control panel that you would not expect a
customer to perform every day. The input operations described are: Temperature Unit Selection Mode, Sabbath
Mode, Showroom Mode, Manual Zone Disable Mode and Manual Freezer Evaporator Defrost.
Temperature Units Selection Mode (Selecting Degrees Fahrenheit or Degrees Celsius Display)
The electronic control is initially set to display temperature in Fahrenheit (°F) units of measure. Units of measure
can be converted from °F to °C (Celsius), and/or back again. This operation is called Temperature Units Selection.
NOTE: Temperature Units Selection must be performed within the first minute after switching the unit ON.
To convert temperature units of measure from Fahrenheit (°F) to Celsius (°C) readings, press and hold the door ajar
alarm bell ON/OFF key and the UNIT ON/OFF key simultaneously for five (5) seconds, then release the keys (See
Figure 3-9). " °C " will appear on the LCD indicating that temperatures will now be displayed in Celsius units of
measure. To convert back to Fahrenheit units of measure, repeat the steps above (See Figure 3-10).
NOTE: Temperature Units Selection Mode will end ten (10) seconds after the last key stroke.
NOTE: Do not press and hold the UNIT ON/OFF key first, that will simply switch the unit OFF.
Figure 3-9. Converting to Celsius Units of Measure (within first minute after switching unit ON)
Press and Hold the Door Ajar Alarm Bell Key and The UNIT ON/OFF Keys for Five (5) Seconds
(within ten (10) seconds of previous key stroke and/or within first minute after switching unit ON)
Press and Hold the Door Ajar Alarm Bell Key and The UNIT ON/OFF Keys
3
3
(700- T
(700- T
Figure 3-10. Converting Back to Fahrenheit Units of Measure
Series
Series
ALL)
ALL)
FREEZER
COLDER WARMER COLDER
Press and hold for 5 seconds
FREEZER COLDER WARMER COLDER
Press and hold for 5 seconds
3-7
Electronic Control System
ICE
REFRIGERATOR
WARMER
ON/OFF
ICE
WARMER REFRIGERATOR
ON/OFF
#3758412 - Revision B - December, 2006
UNIT
ON/OFF
ON/OFF
UNIT
ON/OFF
ON/OFF