Danfoss C67, User Manual

Page: 64 / 84

The grey
side of the
ECL Card
Ex
tended ser
vic
e
32r
Service parameter(s) 152-194
152 Max. limitation temperature at S2 during DHW
charging
Circuit Setting range Factory setting
I 10 ... 110 °C 110 °C
For the system types 5 and 5a, choose a max. limitation
temperature for sensor S2 which must not be exceeded during
DHW charging.
Set the desired limitation temperature for sensor
S2.
This function must be deactivated for the system types 1-4a, i.e.
this line should be set to a max. value (line 152, circuit I: 90-110).
174 Motor protection
Circuit Setting range Factory setting
(I) / (II) OFF / 10 ... 59 min. (OFF) / (OFF)
Prevents the controller from unstable temperature control (and
resulting actuator oscillations). This can occur when there is
no DHW tapping, i.e. when the load is only due to the DHW
circulation, or when the heating demand in the heating circuit
is very low. The motor protection increases the lifetime of all
involved components.
OFF:
Motor protection is not activated.
10 ... 59:
Motor protection is activated after the set
activation delay.
A high value should be used for DHW
installations with many consumers.
194 Temperature difference at DHW charging, cut-out
temperature difference - lower tank temperature
sensor
Circuit Setting range Factory setting
I 1 ... 30 K 15 K
The difference between the desired charging temperature and
cut-out temperature (charging stop).
Set the difference.
Example:
Desired charging temperature
(section 3)
70 °C
Cut-out difference 15 K
Calculated cut-out temperature
(70-15) = 55 °C