AK-PC 781 Version 4.1x
Menu operation RC8CE202 © Danfoss 03/2013
13
Thermostat/pressostats
Measurements
AK error
When “ON”, the controller is in alarm condition.
Comp. ctrl. temp °C
Actual temperature for control sensor (Po or S4)
Comp. ctrl. ref. °C
Actual reference temp. for compressor capacity
(incl. external reference signal, if any)
Compressor cap. %
Cut-in compressor capacity in % (of total capacity)
Request Comp. Cap %
Reference for compressor capacity (deviations may be due to time delays)
P0 °C
Suction pressure in °C. (Measured with the pressure transmitter)
Ss Suction gas °C
Actual suction gas temperature
Cond. ctrl. temp °C
Actual temperature for control sensor (Pc or S7)
Cond. ctrl. ref. °C
Actual reference temp. for condenser capacity
(incl. external contributions, if any)
Cond. cap. %
Cut-in condenser capacity in % (of total capacity)
Request Cond. cap %
Reference for condenser capacity
Pc Bar
Condensing pressure (measured with the pressure transmitter)
Tc °C
Condensing pressure in °C. (measured with the pressure transmitter)
Gc status
Actual gas cooler operation:
0=Off. 1=Standby. 2=Max COP operation. 3=Heat recovery. 4=Extra capacity.
5=Manual control.
Pgc Bar
Actual gas cooler pressure
Pgc reference Bar
Actual reference for gas cooler pressure
Sd discharge gas °C
Actual discharge gas temperature
Sgc °C
Actual temperature at outlet from the gas cooler
Thermostat 1 °C
Temperature measurement of function defined in Thermostat 1.
Thermostat 2 °C
Temperature measurement of function defined in Thermostat 2.
Thermostat 3 °C
Temperature measurement of function defined in Thermostat 3.
Pressostat 1 Bar
Pressure measurement of function defined in Pressostat 1
Pressostat 2 Bar
As above but for Pressostat 2
Pressostat 3 Bar
As above but for Pressostat 3
Settings
Main switch
Main switch:
ON: Regulation
OFF: Controller stopped
T1 Cutin °C
Cutin value for function defined in ”Thermostat 1”.
T1 Cutout °C
Cutout value for function defined in ”Thermostat 1”.
T1 High Alarm °C
High alarm limit "Thermostat 1"
T1 Low Alarm °C
Low alarm limit "Thermostat 1"
T1 High Al delay m
Time delay for high alarm "Thermostat 1"
T1 Low Al delay m
Time delay for low alarm "Thermostat 1"
P1 Cutin press Bar
Cutin value for function defined in ” Pressostat 1”.
P1 Cutout press Bar
Cutout value for function defined in ”Pressostat 1”.
P1 High Al limit Bar
High alarm limit "Pressostat 1"
P1 Low Al limit Bar
Low alarm limit "Pressostat 1"
P1 High Al delay m
Time delay for high alarm "Pressostat 1"
P1 Low Al delay m
Time delay for low alarm "Pressostat 1"
(Use Service Tool if data concerning thermostats 2 to 5 or from Pressostat 2 to 5 have to be downloaded).
Voltage and PI inputs
Measurements
AK error
When “ON”, the controller is in alarm condition.
Comp. ctrl. temp °C
Actual temperature for control sensor (Po or S4)
Comp. ctrl. ref. °C
Actual reference temp. for compressor capacity
(incl. external reference signal, if any)
Compressor cap. %
Cut-in compressor capacity in % (of total capacity)
Request Comp. Cap %
Reference for compressor capacity (deviations may be due to time delays)
P0 °C
Suction pressure in °C. (Measured with the pressure transmitter)
Ss Suction gas °C
Actual suction gas temperature
Cond. ctrl. temp °C
Actual temperature for control sensor (Pc or S7)
Cond. ctrl. ref. °C
Actual reference temp. for condenser capacity
(incl. external contributions, if any)
Cond. cap. %
Cut-in condenser capacity in % (of total capacity)
Request Cond. cap %
Reference for condenser capacity