Alarm - Danfoss ECL Comfort 210 Installation Manual

Installation Guide

5.8 Alarm

Many applications in the ECL Comfort 210 and 310 series have an
alarm function. The alarm function typically activates relay 4 (ECL
Comfort 210) or relay 6 (ECL Comfort 310).
The alarm relay can activate a lamp, a horn, an input to an alarm
transmitting device etc.
The relay in question is activated as long as the alarm condition
is present.
Typical alarms:
• Actual flow temperature differs from the desired flow
temperature.
5.8.1 Temp. monitor.
MENU > Alarm > Temp. monitor
Upper difference
Circuit
1
The alarm is activated if the actual flow temperature increases more than
the set difference (acceptable temperature difference above the desired
flow temperature). See also 'Delay'.
OFF: The alarm function is not active.
1 ... 30 K: The alarm function is active if the actual temperature
gets above the acceptable difference.
MENU > Alarm > Temp. monitor
Lower difference
Circuit
1
The alarm is activated if the actual flow temperature decreases more than
the set difference (acceptable temperature difference below the desired
flow temperature). See also 'Delay'.
OFF: The alarm function is not active.
1 ... 30 K: The alarm function is active if the actual temperature
gets below the acceptable difference.
MENU > Alarm > Temp. monitor
Delay
Circuit
1
If an alarm condition from either 'Upper difference' or 'Lower difference' is
present for a longer time than the set delay (in min.), the alarm function
is activated.
1 ... 99 m: The alarm function will be activated if the alarm
condition remains after the set delay.
Danfoss District Energy
ECL Comfort 210 / 310, application A237 / A337
11147
Setting range Factory setting
OFF / 1 ... 30 K OFF
11148
Setting range Factory setting
OFF / 1 ... 30 K OFF
11149
Setting range Factory setting
1 ... 99 m 10 m
Flow temp. °C
Flow temp. °C
Temp.
VI.LG.R1.02
Upper difference (set
value)
Desired flow temp.
Time
Lower difference (set
value)
Desired flow temp.
Time
Flow temp.
Alarm limit
Time
Delay
DEN-SMT/DK 91