Danfoss ECL Comfort 210 Installation Manual

Also see for ECL Comfort 210: Installation guide User guide Installation guide Installation guide Operating guide

Danfoss ECL Comfort 210 Installation Manual Manual pdf 111 page image

Installation Guide ECL Comfort 210 / 310, application A2665.10 AlarmThe section "Alarm" describes specific application related issues.Application A266 offers different types of alarms:1. Actual flow temperature differs from the desired flowtemperature (A266.1, A266.2)2. Disconnection or short-circuiting of a temperature sensor orits connection3. Max. temperature in heating circuit (A266.2, A266.9, A266.10)4. Activation of alarm input (A266.9, A266.10)5. Pressure alarm (A266.9, A266.10)The alarm functions activate the alarm bell symbol.The alarm functions activate A1 (relay 4).The alarm relay can activate a lamp, a horn, an input to an alarmtransmitting device etc.The alarm symbol / relay is activated:• as long as the alarm reason is present (automatic reset).Alarm type 1:If the flow temperature deviates more than the set differences fromthe desired flow temperature, the alarm symbol / relay will beactivated.If the flow temperature becomes acceptable, the alarm symbol /relay will be de-activated.Alarm type 2:Selected temperature sensors can be monitored.Should the connection to the temperature sensor be disconnected,short-circuited or the sensor gets defective, the alarm symbol/ relay will be activated. In the "Raw input overview" (MENU >Common controller settings > System > Raw input overview) thesensor in question is marked and the alarm can be reset.Alarm type 3:If the flow temperature exceeds the alarm temperature value, thecirculation pump is switched OFF, the control valve closes and thealarm symbol / relay will be activated. This safety function can, forexample, prevent a too high flow temperature in the floor circuit.When the flow temperature gets 5 K below the alarm value, thecirculationpumpwillbeswitchedON,thecontrolvalvewilloperatenormally and the alarm symbol / relay will be de-activated.Alarm type 4:When the alarm input S8 is activated, the alarm symbol / relay willbe activated after a set delay.When the alarm input S8 is de-activated, the alarm symbol / relaywill be de-activated.Alarm type 5:When the pressure gets higher or lower than set limits, the alarmsymbol / relay will be activated after a set delay.When the pressure gets acceptable, the alarm symbol / relay willbe de-activated.When an alarm is activated, the appears in the right favoritedisplays.Danfoss District Energy VI.KT.X3.02 DEN-SMT/DK 111