Manual Component Activation Mode - Sub-Zero 700TC-3 Service Manual

3
Integrated 3 Series
Electronic Control System Integrated Series
(700- T ALL)
(700- T ALL)

Manual Component Activation Mode

Manual Component Activation Mode allows a Service Technician to energize a cooling system for five minutes.
When activated, the chosen zone's compressor and evaporator fan are energized along with the condenser fan.
While in Component Activation Mode, the evaporator temperatures for that zone are displayed on the LCD. This
also allows the Service Technician to check for proper voltage readings at the activated components without having
to wait for the compartment to call for cooling.
To initiate Manual Component Activation Mode, the unit must be ON. With the unit ON, press and hold the desired
zone COLDER key and the UNIT ON/OFF key for ten seconds (See Figure 3-58). The evaporator temperature for
that compartment will be displayed in the left display area of the LCD and the right display area will show the ther-
mistor location.
NOTE: If the COLDER and UNIT ON/OFF keys are pressed and held for less then 10 seconds, Diagnostic Mode
will be initiated.
NOTE: It is possible to toggle through the the other temperature readings as in Diagnostic Mode, but in this case
the temperature readings will last for five minutes rather than twenty seconds.
NOTE: The compressor overload could prevent the compressor from energizing.
NOTE: Manual Component Activation Mode will end five minutes after it is initiated. It is possible to end this five
minute run time and return to normal operation by switching the unit OFF then back ON. If this is done, note that
the electronic control will observe a three minute minimum compressor OFF time when the unit is switched back
ON. This is to protect the compressor and its electricals.
SERVICE
ICE UNIT
ICE OFF
FREEZER REFRIGERATOR
COLDER WARMER COLDER WARMER
ON/OFF ON/OFF
ON/OFF
Press and hold for 10 seconds
Figure 3-58. Initiate Manual Component Activation Mode -
Press and Hold Desired COLDER Key and UNIT ON/OFF Key for 10 Seconds
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#3758412 - Revision B - December, 2006