4
Menu operation RC8CE202 © Danfoss 03/2013
AK-PC 781 Version 4.1x
Main settings
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 Compr. 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
External Main Switch
Status of input “Extern Main Switch”. In pos. “OFF” the regulation is stopped by force
Settings
Main switch
Main switch:
ON: Regulation
OFF: Controller stopped
Configuration lock
Lock of configuration.
In order to select quick setup or select refrigerant type, the configuration lock must
be “open”. Note: ”Main switch” must be OFF in order to set configuration lock in “open”
position
0: Open
1: Locked
Refrigerant type Po
Select refrigerant type
0= not selected, 1=R12. 2=R22. 3=R134a. 4=R502. 5=R717. 6=R13. 7=R13b1.
8=R23. 9=R500. 10=R503. 11=R114. 12=R142b. 13=User defined 14=R32. 15=R227.
16=R401A. 17=R507. 18=R402A. 19=R404A. 20=R407C. 21=R407A. 22=R407B.
23=R410A. 24=R170. 25=R290. 26=R600. 27=R600a. 28=R744. 29=R1270. 30=R417A.
31=R422A. 32=R413A. 33=R422D. 34=R427A. 35=R438A. 36=XP10. 37=R407F.
Suction capacity control
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 Compr. 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
MC dP0 offset K
Actual displacement value for the suction pressure in connection with a “P0
Optimiser” function (Master control function in AKA gateway)
