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5. Press the
key to display the total operation
time.
6. Press the
key to return to box temperature
display.
6.2.6 To change default parameters
1. Press simultaneously the
,
and
keys to display minimum setpoint.
2. Press the
or
key to change minimum
setpoint : 0°C, -20°C or -29°C (default value -29°C).
3. Press the
key to display differential
parameter.
4. Press the
or
key to adjust the
differential value : Dif1 (1°C), Dif2 (2°C), Dif3 (3°C)
(default value Dif2).
5. Press the
key to display evaporator fan
operating mode during off-cycle.
6. Press the
or
key to change the
evaporator fan operating mode: OFF or On (default
value OFF).
7. Press the
key
，
to display the unit °C
and °F.
8. Press the
or
key to change the unit °C
or °F (default value °C).
9. Press the
key
，
to return to box temperature
display.
6.2.7 Fault alarm display
a. Access by the
key
1. Press the
key during 5 seconds to access to
malfunction codes.
2. Press
or
key to display alarms.
3. To scroll through the alarm list, use the
key.
- ACTIVE malfunctions – AXX
An alarm is active when a problem occurs on the unit,
the red LED is flashing speedily.
MALFUNCTION CODE – Red LED flashes
Code
Description
Unit shutdown
Checking
A00
No malfunction – Unit in operation
- -
Contact your
Service Center
A01
Low pressure switch open
Yes
A02
High pressure switch open
A04
Clutch open circuit
No
A06
Condenser fan short circuit
A07
Evaporator fan short circuit
A09
Defrost valve (HGV) short circuit
A10
Liquid injection valve (INV) short circuit
A11
Main hot gas valve (MHV) short circuit
A21
Clutch short circuit
A22
Condenser fan open circuit
A23
Evaporator fan open circuit
A24
Defrost valve (HGV) open circuit
A25
Liquid injection valve (INV) open circuit
A26
Main hot gas valve (MHV) open circuit
E2P
Wrong read/write data from EEPROM
Setpoint adjusted out of range -29°C /+30°C
Lose of set parameters
b. Direct display
Note
Direct display malfunction messages are displayed instead of temperature read-out as soon as the malfunction is
detected, and remain displayed as long as malfunction persists.
