Danfoss EKE 1A User Manual page 47

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
Table 31: ON/OFF thermostat parameters
Parameter Function
R014 Thermostatic Mode (1-Cutin /cutout)
R015 Sensor
I041 S3 Temperature sensor
I041 S4 Temperature sensor
B101 Temperature setpoint, Deg C
R001
Di erential
U118 Operational Status
Modulating thermostat (MTR)
When the temperature is well above the MTR set point (The MTR reference is de ned by temperature set point + ½
di erential) cooling capacity is at maximum and superheat is controlled to be on superheat reference. When
temperature is getting close to the MTR reference the cooling capacity gradually reduce so that the
temperature can be stable on the MTR reference and the superheat will be oating.
Figure 61: Modulating thermostat (MTR)
Temperature S3/S4
Compressor startup
1
/
erential
2
Temperature
setpoint
Valve OD
Table 32: Modulating thermostat (MTR) parameters
Parameter Function
R014 Thermostatic Mode (2-MTR)
R015 Sensor
I041 S3 Temperature sensor
I041 S4 Temperature sensor
B101 Temperature setpoint, Deg C
R001
Di erential
U118 Operational Status
© Danfoss | Climate Solutions | 2024.08
MTR start
Description
-Uses a temperature setpoint (parameter R101), and the di erential con-
stant(R001).
-The temperature media is maintained at a level de ned by the set point.
-If the temperature is higher than the reference + the di erential, the supper heat
control will start, and it stops when the temperature goes below the reference.
Select the used sensor S3 or S4
Only if S3 is selected in R015, Selection of the used Media temperature S3
Only if S4 is selected in R015, Selection of the used Media temperature S4
Desired media temperature
Di erential constant.
7 = Thermo, cutout, (read value)
Time
Time
Description
• Uses a temperature setpoint (parameter R101), and the di erential con-
stant(R001).
• The goal is to maintain the temperature media at the level de ned by the set
point.
• If the temperature is higher than the reference + the di erential, the supper
heat control will start, and it stops when the temperature goes below the ref-
erence.
Select the used sensor S3 or S4
Only if S3 is selected in R015, Selection of the used Media temperature S3
Only if S4 is selected in R015, Selection of the used Media temperature S4
Desired media temperature
Di erential constant.
11= Injection MTR, (read value)
BC398828796060en-000103 | 47