Alarms - Daikin Zanotti GS Manual De Uso

Unsatisfactory efficiency of the unit:
If no defects are found in the unit check that: cold room doors are perfectly tight; there is no cold dispersion;
the cold room is used wisely; no unfrozen liquids or foodstuffs are placed in the low temperature room; the
evaporator is ice-free. We recommend installation of the machines far from the doors especially when the cold
room is expected to be opened many times a day.
W AR NI NG:
R em oval of protections during m achine operation is absolutely forbidden. They have
been developed to safeguard the operator's safety.
12.4 Alarm s
When an alarm condition occurs the following warning devices are activated (depending on the nature of
the alarm):
The alarm relay can be muted by pressing any key. When a key is pressed, the led flashes as long as the alarm
condition is present. To have the alarm code displayed, press ENTER key: AL appears. Press ENTER key. At
this point a code is displayed indicating the cause of the alarm. To leave the alarm menu wait 15 seconds or
press SET as long as cold room temperature is displayed.
ALARM
High temperature
Low temperature
Room sensor
Evaporator sensor
Condenser sensor
Condenser temperature
High pressure
alarm led
alarm relay.
DISPLAY
(AH1)
Red led and alarm relay are
activated; HI is displayed in the
alarm menu as indicated above.
(AL1)
Red led and alarm relay are
activated; AL1 is displayed in the
alarm menu.
(E1)
Red led and alarm relay are
activated; E1 is displayed.
(E2)
Red led and alarm relay are
activated; E2 and cold room
temperature are
alternately.
(E3)
Red led and alarm relay are
activated; E3 and cold room
temperature are
alternately.
If the condensing temperature
exceeds a factory pre-set value,
red led is activated; AH3 is
displayed in the alarm menu.
(nPA)
Each time the pressure switch
trips, the red led is activated. If
more than 10 trips occur in 1
hour, then the unit is turned off
automatically. The alarm relay is
activated, nPA is displayed in the
alarm menu. To reset the unit
turn it off and then on again
CAUSE
Excessive
openings
Excessive product load
Product too warm
Malfunction of the unit
Malfunction
electronic controller
Faulty sensor
Sensor with wrong
connection
Faulty sensor
Sensor with wrong
connection
displayed
Faulty sensor
Sensor with
connection
displayed
Dirty condenser
Faulty operation
condenser fan.
Dirty condenser.
REMEDY
door
Service intervention
of the
Replace sensor
Replace sensor
Replace sensor
wrong
Clean condenser
of Switch
refrigerating unit, wait a
few seconds and switch
on again.
off the
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