Main Menu; General Monitor; System Monitor; Circuit Monitors - AERMEC PCO5 User Manual

2

MAIN MENU

2.1 GENERAL MONITOR

This mask is used to display the unit's general status:
Aermec
9.5°C
EV
7.0°C
1
C1:
— Current date and time
— Evaporator (EV) output temperature;
— Evaporator (EV) input temperature; when it is just below the value relative to
the evaporator input temperature, the icon of the currently active pump will
appear (with the relative number);
— Percentage of power (displayed graphically with a bar to the right of the evapo-
rator) requested by the system;
— Fan speed; percentage value displayed to the right of the condenser;
— Status of compressors ON / OFF circuit 1 and circuit 2
NB: some icons can appear at the bottom of this window, indicating cer-
tain system states:
— : anti-freeze heater activation;
— : Indicates that low output temperature anti-freeze prevention is active
(turns off the compressors)
— : indicates that the low charge function is active;
— : Indicates that the flow switch is open. The compressors are turned off and
the pumps release the flow switch
— : indicates that the compressor is on;
— : indicates that the compressor is off;
— : indicates a compressor alarm;
— : Indicates that high pressure capacity control is active;

2.2 SYSTEM MONITOR

This mask is used to display the system's general status:
Plant
Setpoint
7.0°C
Di .
Outlet Temp.:
Ep 100.0%
Req.: 100.0%
— Current working setpoint;
— Current working differential;
— Temperature probe for machine regulation;
— If a PI function is active, also the proportional factor "Ep" and the integral factor
"Ei" will be displayed;
— Requested percentage of power and percentage of power actually active on
the system side;
NB: some icons can appear in the window, indicating certain system
states:
— : system chilled water production;
— : system hot water production;
— : time bands active;
— : multifunction input;
8
Fri 08:35
CN
C2:
5.0°C
37.0°C
Ei 15.0%
Att: 84.7%

2.3 CIRCUIT MONITORS

This mask is used to display the cooling circuit's general status; if the unit has mul-
tiple circuits, each will have a dedicated window:
Circuit 1
AP: 18.9bar
BP: 6.4bar
91
T. Liquid.:
Discharge Temp.
CP1:
CP2:
CP3:
— AP: high pressure
— BP: low pressure
— Tc: condensation temperature
— Te: evaporating temperature
— T.Liquid: liquid temperature
— T.discharge gas: inverter compressor discharge gas temperature
— T.discharge gas 2: ON/OFF compressor discharge gas temperature
The status of the compressors can be:
— : indicates that the compressor is off, the (remaining) time to satisfy the min-
imum OFF time is indicated to the side;
— : indicates that the compressor is on, the (remaining) time to satisfy the min-
imum ON time is indicated to the side;
NB: if the card is restarted, there will be a 60 second wait to guarantee
the minimum shut-off time necessary for the inverter compressor driv-
er.

2.4 POWER DEMAND MONITOR

This mask is used to display the data related to the power demand on the indicated
circuit; if the unit has multiple circuits, each will have a dedicated window:
Circuits
Total require
Circuit 1:
Circuit 2:
Time between starts:
— Total thermostat request;
— Power delivered by circuit 1;
— Time between starts between two compressors.
Tc: 31.8°C
Te: -2.6°C
14.0°C
75.8°C
0s
0s
0s
100.0%
50.0%
50.0%
0s