Samson TROVIS 5573 - Page 127

EB 5573 EN 16-45
Appendix A (conguration instructions)
esthevalue('Buffertanksetpoint'+'Hysteresisofbuffertank'.Everyothervalueenteredfor
'Stopchargingofthebuffertank'isratedasaxedswitch-offtemperatureforthebuffer
tankcharging.WhenSF2(CO1->F06-1)iscongured,SF2isalwaysusedtostopthe
charging of the buffer tank. The storage tank charging pump is not switched off until the lag
time (entered 'Valve transit time Ty' for Rk1 multiplied by 'Lag time of charging pump') has
elapsed.TheoperationofthefeederpumpUP1iseitherdeterminedbytheZPtimeschedule
or prompted over an external demand. For systems with downstream control circuits, either
only this external demand or the demand of the downstream control circuits causes the feed-
erpumpUP1tobeactivated,dependingontheCO5->F14setting.
ThepumpUP2ofthesolidfuelboilercircuitinsystemsAnl16.2and16.4startstorunwhen
the temperature reaches 'Start temperature for boiler pump' at VF2. The boiler pump is
switchedoffagainwhenthetemperatureatVF2fallsbelowthetemperatureT='Starttem-
peratureforboilerpump'–'Boilerpumphysteresis'.
In systems Anl 16.3, 16.4 and 16.6, a solar circuit is integrated, which uses sensor SF2 for
control. The collector circuit pump CP is activated when the temperature at the collector sen-
sor RüF2 is higher than that at storage tank sensor SF2 by the value entered in 'Solar circuit
pump ON'. It is deactivated when the temperature difference falls below the valve entered in
'Solar circuit pump OFF', when the temperature at the storage tank sensor SF2 reaches
'Max.storagetanktemperature'orwhenthecollectortemperaturerisesabove120°C.
The temperature-based adaptation of the delivery rate of the charging pump SLP can be im-
plementedusinga0to10Vsignal.Itcanbereversed,ifrequired.
Functions Default Conguration
Storage tank sensor SF2 1 CO1->F06-1
SLPdependingonreturnowtempera-
ture
0 CO1->F22-1
Discharging protection 0 CO1'->F03-1
Speed control of the charging pump 0 CO1->F21-1
40.0°C Start speed reduction
SF2limit:5.0to90.0°C
50.0°C Stop speed reduction
SF2limit:5.0to90.0°C
20.0°C Minimumspeed:0to50%
AA(terminals11/12)reverse 0
0%
CO5'->F01-1
Zero:0to50%