PROCEDURES
CONTROL AND INDICATION
NAME | TYPE | FUNCTION |
Thermostat | Contact Points | Cycles the |
|
| refrigeration |
|
| system (automatic) |
Power Control | Contact Points | Terminates power |
Switch(ON/OFF) |
| to the unit |
LCD display |
| Indicates continuous |
|
| cabinet temperature |
3.3EXTENDED PERIOD OF INACTIVITY
This unit is designed for continued use at automatically cycled intervals. In case of an extended
OPERATION |
| RESULTS | |
|
|
|
|
Activate system by | The compressor should | ||
electrical service cord | immediately come | ||
into electrical supply | and the evaporator fan activate. | ||
source Turn power |
| ||
switch to the "ON" |
| ||
position. |
| ||
With the door closed and | The temperature in the storage | ||
the storage area empty | area will begin to decrease | ||
of product, wait for a |
| ||
period of 1 hour |
| ||
Verify correct operating | Cabinet will have reached the | ||
temperature. Begin | proper operating temperature | ||
stocking the containment | of 36°F ± 3°F(2°C ± 1°C) | ||
area when the proper |
| ||
operating temperature |
| ||
has been reached. |
| ||
|
|
|
|
3.4 ERROR CODES
ALARM SIGNALS
MESSAGE
“P1”
“P3”
“P4”
“HA”
“LA”
“HA2”
“LA2”
“dA”
“EA”
“CA”
“CA”
CAUSE | OUTPUTS |
| Compressor output |
| acc. To. Par. “Con” |
Room probe failure | and “COF” |
Third probe failure | Outputs unchanged |
Fourth probe failure | Outputs unchanged |
Maximum |
|
temperature alarm | Outputs unchanged |
Minimum |
|
temperature alarm | Outputs unchanged |
Condenser high | It depends on the |
temperature | “Ac2”parameter |
Condenser low | It depends on the |
temperature | “bLL” parameter |
| Compressor |
Door open | according to rrd |
External alarm | Output unchanged |
Serious external |
|
alarm (i1F=bAL) | All outputs OFF |
Pressure switch |
|
alarm (i1F=PAL) | All outputs OFF |
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