Emerson E2 Manuel D’Utilisation

Clean Modes may be either fixed or timed. Fixed 

Clean Modes begin when the clean switch is turned ON 
and end when the clean switch is turned OFF. Timed Clean 
Modes begin when the clean switch is turned ON and ends 
a specific time afterwards. The user specifies how long the 
wash mode will last.
End of Mode Warning

To warn service personnel that wash mode is about to 

end, the case controller will blink the case lights for five 
seconds. After five seconds of blinking, the case fan will 
activate and refrigeration will restart.

The CC-100P and CCB (dual-pulse valve model) case 

controller is used to control walk-in boxes, since it is the 
only model capable of controlling two valves.

Walk-in boxes are controlled the same way as for other 

cases. The primary difference between walk-in boxes and 
other cases is the use of the door switch.

When the case controller’s door switch input is turned 

ON, refrigeration is suspended (all pulse valves go to 0%), 
the fans turn OFF, and the lights turn ON. The walk-in box 
remains in this state until the door switch turns OFF again.

Alarm times can be assigned to the door switch input 

so that an alarm can be generated when the door is left 
open for too long. 

Also, when temperature alarm setpoints are configured 

for the case, the case controller will begin refrigeration if a 
temperature alarm trips with the door open.

When major system malfunctions occur, the case con-

troller enters a Fail-Safe Mode. The Fail-Safe Mode is 
designed to keep the case functioning as normally as pos-
sible under system conditions that would otherwise make 
case control impossible.

A case controller will enter Fail-Safe Mode whenever 

one of three conditions occur:

1.

The superheat and/or temperature control set-
point(s) are corrupted (i.e., outside of its pro-
grammed minimum/maximum range).

2.

The software is corrupted.

3.

An unrecoverable sensor failure has occurred 
(see Operation with Failed Sensors, below).

When a case controller enters Fail-Safe Mode, each 

output will be set to the fail-safe state described in 



Pulse Valve, Stepper Valve

Controller will fix 
the position to the 
last known good out-
put percentage

Fans

ON

Lights

ON

Defrost

OFF

Anti-Sweat

Pulse at 50%

CC-100 and CS-100 Alarm 
LEDs (red)

Flashes at a rate of 2 
per second

Dual Temp Output

Off

Suction Solenoid Valve

Open

Liquid Solenoid Valve

Open

Satellite Output(s)

OFF

The CC-100 and CS-100 will be able to cope with 

some sensor failures without having to enter Fail-Safe 
Mode.
Coil In or Coil Out Failure

A coil inlet temperature or coil outlet temperature sen-

sor will be considered failed if one of two conditions 
occur:

1.

The sensor gives a value outside of its minimum 
and maximum temperature range (that is, below -
50°F or above 120°F) for two consecutive read-
ings, or

2.

The sensor value is 20°F above the control set-
point for longer than ten minutes.

 If the coil inlet or coil outlet temperature sensor has 

failed, the case controller will compensate by “guessing” 
the inlet or outlet temperature based on the values of the 
remaining functional coil sensor and the case temperature 
sensor(s). The case controller will continue to guess the 
value until the coil inlet or outlet sensor can be fixed.

If both the coil inlet and coil outlet sensors have failed, 

or if one coil sensor and the case temperature sensor(s) 
have failed, the case controller will not be able to make the 
required calculations, and they will go into Fail-Safe 
Mode.
Discharge/Return Air

If the sensor or combination of sensors supplying the 

case temperature to the case controller have failed (i.e., the