Danfoss EKE 1A User Manual page 52

Superheat controller and stepper valve driver, Type EKE 1A, 1B, 1C, 1D
Table 41: Start OD with protection
Parameter Function Description
Startup
N102 1 = Minimum OD with protection
mode
Startup Min value: 1 second | Max value: 600 seconds
N105
time
After startup time the Startup OD is Disabled, and controller will switch to the set control mode.
Starting OD degree of the valve.
 WARNING:
N017 Startup OD
This parameter has lower priority then limiters (LOP, SH close, MOP...)
Start OD without protection
This function will provide a start opening degree during a set time. This function is not a ected by the limiters such
as LOP.
Figure 66: Start OD without protection
Forced opening of valve
OD%
Startup OD%
Start
Table 42: Start OD without protection
Parameter
N102
N105
N017
Defrost sequence
Defrost Sequence must be initiated by the master controller. In a standalone con guration, the defrost mode is not
possible.
To initiate defrost, the system mode is changed from Heat pump to A/C, hereby the outdoor unit will act as a
condenser and the hot discharge gas from the compressor will defrost the coil. In some system electrical heaters are
used instead of reversible system but defrost sequence can still be used.
Figure 67: Defrost sequence
Injection
OD %
Defrost start
signal received
Defrost OD
Defrost
end OD
0
Defrost start time
© Danfoss | Climate Solutions | 2024.08
Auto control
Valve OD%
Forced OD% Normal Reg.
Time for start
Start up time
Function
Startup mode
Startup time
Startup OD
Defrost Defrost end
Defrost end
signal received
Defrost end
closed time
Description
2 = Minimum OD without protection
Min value: 1 second | Max value: 600 seconds
After startup time the Startup OD is Disabled, and controller will switch to the set control mode.
Starting OD degree of the valve.
Startup
time
Defrost end
OD time
BC398828796060en-000103 | 52