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4 INPUT/OUTPUT MENU
The input/output menu shows many of the values measured by the various probes
and transducers on the unit. You cannot set any values via this menu, but it gives
important operating information such as the defrosting status and so on.
4.1 GENERAL INPUT/OUTPUT STATUS
This mask displays:
— Percentage value showing the current power request from the system
— Current outside temperature value
— Percentage value of the current load on circuit 1
— Current pressure value measured on the high-pressure side of the refrigerant
circuit
— Current pressure value measured on the low-pressure side of the refrigerant
circuit
— Current temperature value measured on the low-pressure side of the refrigerant
circuit
— Current temperature value measured on the high-pressure side of the refrig-
erant circuit
— Indication of the status (ON or OFF) of the compressors of circuit 1; if a compres-
sor is ON, there will be a green dot next to the label. For each compressor, there
is also a value in seconds, indicating (with a countdown) the minimum ON or
OFF time (in both cases, if the value is 0s this means the compressor has already
respected the minimum ON or OFF time and can respond to a request from the
system instantaneously).
— Indicates the minimum time that must pass between two compressor peaks;
the time is shown by means of a countdown, after which consent for the next
compressor peak is enabled.
— Percentage value of the current load on circuit 2 (if installed)
— Current pressure value measured on the high-pressure side of refrigerant circuit
2 (if installed)
— Current pressure value measured on the low-pressure side of refrigerant circuit
2 (if installed)
— Current temperature value measured on the low-pressure side of refrigerant
circuit 2 (if installed)
— Current temperature value measured on the high-pressure side of refrigerant
circuit 2 (if installed)
— Indication of the status (ON or OFF) of the compressors of circuit 2; if a compres-
sor is ON, there will be a green dot next to the label. For each compressor, there
is also a value in seconds, indicating (with a countdown) the minimum ON or
OFF time (in both cases, if the value is 0s this means the compressor has already
respected the minimum ON or OFF time and can respond to a system request
instantaneously).
4.2 VENTILATION STATUS
This mask displays:
— Percentage value of the current speed of the fans on circuit 1
— Current pressure value measured for the operating set-point of the fans on cir-
cuit 1
— Current pressure value measured for the dierential to be applied to the operat-
ing set-point of the fans on circuit 1
— Status of the fans on circuit 1. This status may be:
O = Fans switched o;
Pre-ventilation = Indicates the pre-empted switch-on of the fans in relation to the
compressors;
High pressure = Indicates that the check on the basis of high pressure is currently
active;
Post-ventilation = Indicates the ventilation phase after compressor switch-o;
Antifreeze = Indicates the ventilation phase for preventing the build-up of snow
and the formation of ice;
Defrosting = Indicates the defrosting phase;
Low pressure = Indicates that the check on the basis of low pressure is currently
active;
Maximum speed = Indicates that the fans are currently turning at their maximum
speed;
Low noise = Indicates that partialised speed is active, to reduce the noise level;
— Percentage value of the current speed of the fans on circuit 2 (if installed)
— Current pressure value measured for the operating set-point of the fans on cir-
cuit 2 (if installed)
— Current pressure value measured for the dierential to be applied to the operat-
ing set-point of the fans on circuit 2 (if installed)
— Status of the fans on circuit 2 (if installed). This status may be:
O = Fans switched o;
Pre-ventilation = Indicates the pre-empted switch-on of the fans in relation to the
compressors;
High pressure = Indicates that the check on the basis of high pressure is currently
active;
Post-ventilation = Indicates the ventilation phase after compressor switch-o;
Antifreeze = Indicates the ventilation phase for preventing the build-up of snow
and the formation of ice;
Defrosting = Indicates the defrosting phase;
Low pressure = Indicates that the check on the basis of low pressure is currently
active;
Maximum speed = Indicates that the fans are currently turning at their maximum
speed;
Low noise = Indicates that partialised speed is active, to reduce the noise level;
4.3 OUTSIDE TEMPERATURE STATUS
This mask displays:
— Current temperature value measured for the outside air
— Minimum outside air temperature recorded today
— Maximum outside air temperature recorded today
— Minimum outside air temperature recorded yesterday
— Maximum outside air temperature recorded yesterday
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