Delfield T24C, T20C, T40, T5, T14D manual Alarm Management

7. Alarm Management

7.1 Storage of data/errors

The appliance electronic controller is equipped with a system of acoustic and visual signals to indicate the intervention of safety devices. The table below gives a list of the alarms shown on the panel display

7.2The software controls the following alarms: Evaporator probe alarm (ALL 01)

Cause:

Beeper:

Display:

Reset:

Exit from operating range (-58°F / -50°C - 212°F / +100°C) for over 30 seconds. Probe is defective (REPLACE PROBE).

Activated (3 seconds, then a pause of 30 seconds) until the mute button is pressed.

Alternates message “ALL 01” with standard display

Automatically resets only when probe reading has returned to normal.

Core probe alarm (ALL 02)

Cause:	Exit from operating range (-58°F / -50°C - 212°F / +100°C) for more than 30 seconds during
	current chilling cycle by temperature.
Effect:	Interruption of current chilling cycle by temperature and automatic start-up of timed
	chilling cycle. Chilling by temperature push-button disabled.
	Probe is defective (REPLACE PROBE).
Beeper:	Activated (3 seconds, then a pause of 30 seconds) until the mute button is pressed.
Display:	Alternates message “ALL 02” with standard display
Alarm relay:	Not activated.
Reset:	Press the mute push-button (with beeper off).
	Resets automatically if probe value returns to normal, but cycle remains in timed mode.
	Alternatively, switch off the panel then turn it back on (stand-by).
	Compartment probe alarm (ALL 03)
Cause:	Exit from operating range (-58°F / -50°C - 212°F / +100°C) for over 30 seconds.
	Probe is defective (REPLACE PROBE).
Effect:	Any current chilling cycle is interrupted.
	If a storage phase is in progress, the compressor and the fan set to stand-by status.
	When the appliance is in Stop status, press Start to set the compressor and fan to stand by.
Beeper:	Activated (3 seconds, then a pause of 30 seconds) until the mute button is pressed.
Display:	Alternates message “ALL 03” with standard display
Reset:	Automatically resets only when probe reading has returned to normal.