Tecumseh INFINEE Manuel D'utilisation page 31

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AL_V02 Fault in variable- Compressor's variable-
frequency drive frequency drive fault alarm
compressor Compressor stationary and
current consumed > 1 A
AL_V04 Detect. coolant leak Coolant leak detection
AL_V07 High discharge High discharge
temp. temperature alarm
Discharge T°C >
"Thrsh_High_Tref" (120°C)
AL_V08 Repeated HP Repeat HP offloading
offloading Counting of the 3 faults
3 software trigger. "AL_PHP_Soft.Trigger"
AL_V09 Water pump fault Water pump fault
Delta P calculated <
Thrsh_DeltaP_Al_pump
(0.5 bar)
and no comm pump error
AL_V10 Fault water flow No delta between the input
too low pressure of the unit and the
inlet pressure of the pump
no water flow
DeltaP < 0.5 bar
AL_V11 Water loop fault Check for pressure drop on
Water leak water inlet or outlet >
Thrsh_decr_P (5.0 bar)
AL_V12 Water loop fault Water control loop fault
Pressure < cons water flow
min Pressure at unit input or
pressure at pump inlet <
0.5 bar
AL_V13 Inversion of T °C sensors inverted
sensors water inlet and outlet
W_OutTemp – W_InTemp
Water I/O
temperature > 1.0°C with compressor
running
AL_V14 Water loop fault Water control loop fault
Pressure > cons water pump overload
max Pressure at unit outlet or
pressure at unit inlet or
pressure at pump inlet > 10
bar
AL_V15 Antifreeze fault Antifreeze fault
Pump offline and antifreeze
mode activated
AL_16 Fault com. pump Modbus communication
error with the pump's
variable-frequency drive
Al_18 Evap. temp. too low Temperature too low at
evaporator output
Temperature calculated
according to pressure and
type of fluid
"T_Sat_Out_exchange" <
"Low_Thrsh_T_Sat_Out_E
xchange" (between -10°C
and -35°C depending on
the glycol level)
Version: 2020-01
Control User Manual
Description degraded mode
Complete shutdown
Switch to stop mode
Antifreeze mode possible
No compressor stop
Valve override 100%
Compressor limit to 60
Hz
Compressor stop
Limits compressor
frequency to 40 Hz for 4
hours
Forces ventilation
frequency to 100% for 4
hours
Complete shutdown
Complete shutdown
Complete shutdown
Complete shutdown
Switch to stop mode
Antifreeze mode possible
Complete shutdown
Already an alarm in an
offline pump case
Complete shutdown
Switch to stop mode
Antifreeze mode possible
Restarting after the first
two triggers
at the third trigger, need
an acknowledgment to
restart
TECUMSEH EUROPE S&L
2 av. Blaise Pascal, 38090 Vaulx Milieu
Tel. : +33 (0)4 74 82 24 00 - www.tecumseh.com
INFINEE chillers
Comments Degraded of pump and
mode compressor
no yes
no yes
yes yes
yes yes
no yes
no yes
no yes
no yes
no no
no yes
no yes
no yes
no no
Stop
Compressor
stop
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes
ENGLISH - 31 -