Danfoss ADAP-KOOL AK-PC 781 Manuel de l'utilisateur - Page 9
Parcourez en ligne ou téléchargez le pdf Manuel de l'utilisateur pour {nom_de_la_catégorie} Danfoss ADAP-KOOL AK-PC 781. Danfoss ADAP-KOOL AK-PC 781 14 pages. Capacity controller with heat recovery
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Compressor cap. %
Request Comp. Cap %
P0 °C
Ss Suction gas °C
Cond. ctrl. temp °C
Cond. ctrl. ref. °C
Cond. cap. %
Request Cond. cap %
Pc Bar
Tc °C
Gc status
Pgc Bar
Pgc reference Bar
Sd discharge gas °C
Sgc °C
Tc max. limit °C
S7 brine temp °C
Condenser status
Air flow status
Sc3 Air on °C
No. of fans
VSD Speed %
VSD safety
Settings
Main switch
Condenser ctrl mode
Manual capacity %
Pc Ref. mode
Cond. Setpoint °C
Dimensioning tm K
AK-PC 781 Version 4.1x
Cut-in compressor capacity in % (of total capacity)
Reference for compressor capacity (deviations may be due to time delays)
Suction pressure in °C. (Measured with the pressure transmitter)
Actual suction gas temperature
Actual temperature for control sensor (Pc or S7)
Actual reference temp. for condenser capacity
(incl. external contributions, if any)
Cut-in condenser capacity in % (of total capacity)
Reference for condenser capacity
Condensing pressure (measured with the pressure transmitter)
Condensing pressure in °C. (measured with the pressure transmitter)
Actual gas cooler operation:
0=Off. 1=Standby. 2=Max COP operation. 3=Heat recovery. 4=Extra capacity.
5=Manual control.
Actual gas cooler pressure
Actual reference for gas cooler pressure
Actual discharge gas temperature
Actual temperature at outlet from the gas cooler
Readout limit value for max condenser pressure
Actual media temperature measured at S7 sensor
(Only used if S7 is selected as control sensor)
0: Power up
1: Stopped
2: Manual
3: Alarm
4: Restart
5: Standby
6: Unloaded
7-9 Part loaded
10: Full loaded All capacity cutin
11: Running Capacity control is running
0: No RFG. select No refrigerant has been selected (monitoring of air
1: Tuning
2: OFF
3: OK
4: Little dirt
5: Dirty
6: Blocking
Outdoor temperature in °C measured with Sc3 temperature sensor
Defined number of fans
Status of analogue output signal "AO" for variable speed drive (in percent of
full scale f.ex. 0 -10 V d.c.)
Status of safety monitoring input for Variable Speed Drive
ON: Alarm on VSD A safety monitoring input
OFF: No alarm on VSD A safety monitoring input
Main switch:
0: MAN (The condenser capacity will be controlled manually)
1: OFF (The capacity control will be stopped)
2: AUTO (The capacity is controlled by the PI controller)
Manual setting of condenser capacity
The value is in % of total capacity controlled by the controller
0: Set point
1: Floating
Setting of required discharge pressure in °C
Dimensioning mean temperature differential between air- and condensing
temperature at full load for the condenser in question (Typical 8 – 15K).
Menu operation RC8CE202 © Danfoss 03/2013
Controller has been powered up (power supply re-connected)
Capacity control has been stopped ("Main switch" = OFF or
"Control mode" = OFF)
Capacity is controlled manually ("Control mode" = MAN)
Capacity control is in alarm condition (f.ex. Pc Max or Sd Max)
Capacity control is waiting for elapse of "Restart time"
Capacity control is ready to start
flow can not start)
Monitoring function adapts to the condenser in question
Monitoring function is switched OFF
Air flow is OK
The amount of dirt decreases the performance of the condenser,
clean when possible
The amount of dirt leads to considerable air flow problems, clean
as soon as possible
The amount of dirt might lead to high pressure problems, clean
now
ON:
Regulation
OFF: Controller stopped
Reference = "PcA setpoint °C"
Reference is changed as a function of the outdoor temperature
measured by the "Sc3 air on" sensor, the set "Dimensioning tm K"
and the actual compressor load.
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