COSMOGAS FRYO 6PI, Instructions For Installation, Use And Maintenance Manual

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FRYO PI
COSMOGAS
8 - DIAGNOSTIC
Code Description Operation status Possible causes and solutions
02 P5
Compressor off due to the intervention
of the high pressure switch
Compressor stopped
If the pressure is too high, the pressure switch switches
off the compressor. After 5 minutes the system resets
itself automatically. Check that the fan and pump are
running smoothly and that the external battery is not
blocked by dirt. Also check that the supply temperature is
not too high or that there is no more than 8 ° C difference
between supply and return.
02 P6
Compressor speed reduced due to
too high pressure detected by the high
pressure sensor
Compressor stopped
This protection appears when the pressure is higher than
the pressure set for a certain speed. If the compressor
reduces the speed, but the pressure remains higher than
expected, the compressor stops. Check that the supply
temperature is not too high, that the water flow rate is
not too low, that the electronic expansion valve works
regularly, that the air turns regularly in the unit and that
the temperature difference between supply and return
does not exceed 8 ° C.
02 P7 Compressor preheating
Expected function, nothing
needs to be done.
This is a normal security function. If the compressor has
not worked for a long time and the outdoor temperature
is below -5 ° C, the electrical resistance placed on the
compressor base is activated for 30 minutes.
02 P8
Excessive compressor discharge
temperature
Compressor stopped
Check that the value set for the supply water is not too
high, especially when the outdoor temperature is very
low. Check that the water flow rate is sufficient. Check
that the refrigerant circuit has no leaks and that there is
sufficient coolant.
02 P9
Evapo-condensing battery temperature
too high
Compressor stopped
The temperature of the evapo-condensing battery is too
high. Check if the air circulates freely in the battery.
02 Pa Supply voltage too high or low Compressor stopped
The power supply voltage is incorrect. Verify that it is
between 180 and 264 V.
02 Pb
Compressor off due to too high or too low
outdoor temperature
Compressor stopped The outdoor temperature is too low or too high to work.
02 Pc
Compressor speed power supply inter -
vention due to an outdoor temperature
that is too high or too low
Limited compressor speed
The outdoor temperature is too high or too low to work
at full load. This protection serves to ensure correct
operation.
02 Pd N/A N/A N/A
02 PE
The low pressure sensor indicates a
value too low
Compressor stopped
This protection intervenes when the low pressure sensor
detects a too low value. If, after reducing the compressor
speed, the pressure remains too low, the compressor will
be stopped. Check that the value set for the supply water
is not too high. Check that the water flow rate is suffi -
cient. Check that the electronic expansion valve works
properly. Check that the air turns regularly in cooling or
that it is not too hot in heating. If necessary, top up the
refrigerant quantity.
03 P3 Wired communication fault
If an external controller is
present and has communi -
cation, the unit continues to
work. If there is no remote
control, the unit stops.
Too much communication data lost. Check that the
connection wiring is intact and well connected. The maxi -
mum cable must be 30 meters long. Check that there are
no disturbances in the vicinity of the unit.