Unrestricted Sequence; Outdoor-Temperature-Dependent Sequence - Samson TROVIS 5500 Operating Instructions Manual

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Enabled = BI (binary input)
The heat exchanger is only enabled if it is not locked by the heat exchanger enabling
function (see section 1.5.1) and when its binary input is closed:
– UE 17 of the PLC for heat exchanger WT1
– UE 16 of the PLC for heat exchanger WT2
– BE5 at the ModBus I/O (1402-0328O (4) for heat exchanger WT3
2
[Übersicht > Service > Wärmetauscher 1...3]
This menu can only be activated after the application key number has been entered!
Parameter
Freigabe
(Enabling)

4.2.1 Unrestricted sequence

If the flow temperature does not reach the target temperature (set point), the lead heat
exchanger is activated. If the output entered in ON switching point is not reached to increase the
flow temperature to the set point, the lag heat exchanger is activated. It supplies the remaining
energy required to heat the flow temperature.
The lag heat exchanger first stops running when the total of the modulation of all the heat
exchangers is smaller than the OFF switching point parameter.
2
[Übersicht > Parameter > Allgemein > Folgebetrieb]
Parameter
Folge (sequence) =
uneingeschränkt (unrestricted)
EIN-Schaltpunkt
(ON switching point)
AUS-Schaltpunkt
(OFF switching point)

4.2.2 Outdoor-temperature-dependent sequence

The heat exchangers are enabled depending on the outdoor temperature. Above the Tempera-
ture for enabling the sequence, only the lead heat exchanger is enabled. The Temperature for
enabling the sequence parameter must be adapted to meet the energy demand and possible
output of the lead heat exchanger. A higher energy demand must be able to be achieved by lon-
ger operating times of the lead heat exchanger without loss of comfort.
WE Adjustment range
EIN EIN (on), BE (binary input)
WE Adjustment range
Outdoor tempera- Outdoor temperature dependent, unrestricted,
ture dependent parallel
90 % 0 to 100 %
40 % 0 to 100 %
Functions of the heat exchanger
EB 5571-2 EN
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