Danfoss EKE 1A User Manual page 44

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
Parameter Function
N117 SH close Function
N119 SH close setpoint
I082 S2 sensor con guration
I086 Pe transmitter con guration
Load AP
In Load ap application, SH reference follows a de ned curve as shown in the diagram. This two-point curve is
de ned by SH max and SH min. These two values must be selected in such a way that the curve is situated between
the MSS curve and the curve for average temperature di erence ΔTm (temperature di erence between media
temperature and evaporating temperature). This makes the regulation more stable compare to MSS because it does
not seek a usability.
Table 26: Load AP
EKE
Applicable
Figure 57: Load AP parameters
Q
o
100 %
90 %
10 %
Min. SH
Table 27: Load AP parameter
Parameter Function
R102 Operation mode
N021 SH reference mode
N009 SH max. value
N010 SH min. value
N117 SH close function
N119 SH close setpoint
I082 S2 sensor con guration
I086 Pe transmitter con guration
I041 S3 Temperature sensor
© Danfoss | Climate Solutions | 2024.08
Description
Safety feature to prevent the ooding of the liquid into the compressor. When the measured superheat goes
bellow the SH close setpoint (parameter N119) 0 = O | 1 = On, default = 1
It is recommended to set the SH close setpoint 2k below the minimum SH.
Default value =2 K (recommended).
-Selection of the used evaporator temperature sensor S2
-Selection of the used evaporator pressure sensor Po
1A 1B
Max. SH
Superheat
1C
Description
0 = SH Control
1 = LoadAp
SH max. de nes the reference for OD between 90-100% SH max.
must be greater than or equal to SH min.
SH min de nes the SH reference for OD between 0 and 10 %.
Note: SH min. value must be >0.5K higher than SH close value, if
N117=1
0 = O | 1 = On, default = 1
It is recommended to set the SH close setpoint 2k below the
minimum SH.
Default value =2 K (recommended).
-Selection of the used evaporator temperature sensor S2
-Selection of the used evaporator pressure sensor Po
-Selection of the used Media temperature S3
BC398828796060en-000103 | 44
1D