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AK-LM 340
RS8GV202 © Danfoss 2016-06
83
Two-sensor thermostat (10 units)
The function can be used for:
• Temperature control with relay function
Example
The thermostat can use two of the sensors (S1, S2, S3, etc.).
As a point of departure, use the outlet point at which the relay will
cut in and where it will cut out.
Cut-in:
- Define which sensor will introduce the cut-in
- Set the temperature value
- Define whether the cut-in will happen when the temperature is
above or below the temperature value.
The cut-in will happen when the temperature has exceeded the
set temperature value throughout the entire delay period.
Cut-out:
- Define which sensor will introduce the cut-out
- Set the temperature value
- Define whether the cut-out will occur when the temperature is
above or below the temperature value.
The cut-out will occur when the temperature has exceeded the set
temperature value throughout the entire delay period.
Min. re-engagement
A timer function starts after each cut-out. The next cut-in will only
be permitted when the time for this timer function has elapsed.
Priority
Cut-out will always have a higher priority than cut-in.
DI signal
A DI signal can be defined for the function. When this signal is ON,
the thermostat function will be stopped and the relay will cut out.
This happens without delay.
Difference thermostat (10 units)
The function can be used for:
• Temperature control with relay function
• Temperature monitoring with alarm function
Example
The thermostat can use two sensors (S1, S2, S3, etc.).
The function will activate a relay depending on how great a tem-
perature difference there is on the two sensors.
The relay will be cut in for a low temperature difference.
The cut-in will occur when the temperature difference has
dropped to the set value and has remained below it for the entire
delay period.
The relay will cut out again for a high temperature difference.
The cut-out will occur when the temperature difference has ex-
ceeded the set value and has remained there for the entire delay
period.
A high alarm limit can be set. If the temperature difference be-
comes greater than the set value, an alarm will be issued, but only
once the delay period has elapsed.
A low alarm limit can be set. If the temperature difference be-
comes lower than the set value, an alarm will be issued, but only
once the delay period has elapsed.
DI signal
A DI signal can be defined for the function. When this signal is ON,
the thermostat function will be stopped and the relay will cut out.