Figure 64: Delta Temperature Reference
In this mode the response of the controller is quicker in case of load changes.
Table 27: Delta Temperature Reference
Maximum allowed SH reference in the range.
Minimum allowed SH reference in the range.
Note: Value must be >0.5K higher than SH close value, if N117=1
SH ref. delta temp factor
Note: this value should be between 0.4 and 0.1. Lower value may ood the
compressor whereas higher values will result in low eciency
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
Pe transmitter conguration
-Selection of the used evaporator pressure sensor Po
-Selection of the used Media temperature S3
6.2.2 Temperature Control Parameters
EKE has 2 methods of controlling the superheat while considering the temperature of the incoming media (using
temperature sensor S3) or based on the outgoing media (using temperature sensor S4).
The 2 methods are:
• ON/OFF thermostat.
• Modulating thermostat (MTR).
Figure 65: Temperature Control Parameters
These modes require one extra temperature sensor S3 or S4, the user can select only one sensor not both.
WARNING:
Superheat control with Thermostatic Mode is not available on EKE 1A.
ON/OFF thermostat
In this mode, if temperature is above the set point + dierential cooling is started with maximum cooling capacity.
In maximum capacity superheat is controlled to be on superheat set point. Cooling is active until the temperature is
below set point. In a startup, cooling will be active if temperature is above temperature set point.
© Danfoss | Climate Solutions | 2022.06 BC398828796060en-000101 | 45
Superheat controller, Type EKE 1A, 1B, 1C, 1D
To Next Page
Loading...
Need help?
General
