ISA ZERO TOUCH T12, Use And Maintenance Manual

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USE AND MAINTENANCE MANUAL
ZERO TOUCH
10.1 ALARMS LIST
(WHERE PRESENT)
ALARM DESCRIPTION OUTPUTS AUTHORISED
PERSONNEL
P1
E0
Broken thermostat probe.
Compressor output according to
“COn” and “COF parameters
• The alarm starts a few seconds after the probe breaks down; it stops a few
seconds after the probe starts working again properly.
• We recommend checking the probe connections before replacing it.
P2
E1
Broken evaporator probe.
Set time for defrosting.
• The alarm starts a few seconds after the probe breaks down; it stops a few
seconds after the probe starts working again properly.
• We recommend checking the probe connections before replacing it.
HA
HI
High temperature alarm. • The alarm stops automatically on reaching the temperature set.
• Check programming.
LA
LO
Low temperature alarm. • The alarm stops automatically on reaching the temperature set.
• Check programming.
EA
IA
CB
External alarm. • The external alarm stops after the digital infeed is deactivated, it is restored
automatically.
• The alarm is linked to the intervention of the pressure switch and/or the com-
pressor circuit breaker, when present.
ETc
RTF
Real time clock is broken. • Reset the clock.
• If the alarm does not stop, replace the clock.
EE Machine parameter error. • The instrument is damaged. It must be replaced.
EF Operating parameters error. • The instrument is damaged. It must be replaced.