Cool Top 6
4 User menu settings
The user can adjust the following settings:
■
Temperature unit (°C / °F), display shows “Tum”
■
Display back-light, display shows “Dim”
6 +
X Press and hold buttons 6 and “MENU” for 3 sec.
–
The user menu opens.
X Press button “Recirculation” or “Cooling” to
switch between menu items.
X Press button “MENU” to select menu item.
X Press button “Recirculation” or “Cooling” to ad-
just the parameter.
X Press button “MENU” to save the parameter val-
ue.
5 Error codes
If an error occurs the display
shows an error code.
Error
code
Description Troubleshooting
033 Empty refrigerant cir-
cuit
Check refrigerant charge. Check
refrigerant leakage. Refill.
118 Short circuit on one
of the digital outputs
Check digital output and relays.
120 Water valve feedback Check water valve and its con-
nections
125 Short circuit with
sensor
Check NTC 2 Supply air tempera-
ture sensor
127 Short circuit with
sensor
Check NTC 1 Internal tempera-
ture sensor
129 Short circuit with
sensor
Check NTC3 External tempera-
ture sensor
130 Short circuit with
sensor
Check NTC4 Internal auxiliary
temperature sensor
132 Short circuit with
transducer
Check low pressure transducer
connection
133 Short circuit with
transducer
Check high pressure transducer
connection
143 Broken connection
with sensor
Check NTC2 Supply air tempera-
ture sensor
145 Broken connection
with sensor
Check NTC1 Internal tempera-
ture sensor
147 Broken connection
with sensor
Check NTC3 External tempera-
ture sensor
148 Broken connection
with sensor
Check NTC4 Internal auxiliary
temperature sensor
150 Broken connection
with transducer
Check low pressure transducer
connection
151 Broken connection
with transducer
Check high pressure transducer
connection
162 Battery overvoltage Check battery. Power supply volt-
age above 16V (12V) or 32V
(24V).
163 Battery undervoltage Check battery. Power supply volt-
age below 9V (12V) or 18V
(24V).
164 Transducers supply
(5V) undervoltage
Check transducers supply line.
Power supply voltage below
4,95V.
167 Overcurrent fresh air
motor
Check motor and its connections.
Current over 1.5A.
168 Overcurrent water
valve
Check water valve and its con-
nections. Current over 1.5A.
Tbl. 01: Error codes
AUTO
MENU
T
6