Samson TROVIS 5400 Series Mounting And Operating Instructions page 25

tains the temperature at storage tank sensor ON SF1, the SLP is switched on. If the requirement is
terminated by exceeding the adjustable differential gap at sensor SF1 or the preset differential
gap at the storage tank thermostat, the controller operates again according to the heating char-
acteristic; the UP is switched on. The TLP is switched off if the temperature at sensor VF1 falls be-
low an adjustable value. If CO2 FB 3 = ON, the SLP is switched off if the temperature at sensor
VF2 falls below an adjustable value, in all cases however (with CO2 FB 3 = OFF also) after two
running periods of the control valve. The ZP runs according to a time program.
C) omitted
D) Summertime operation or switched off operation
If in the storage tank the temperature falls below the value for warm water requirement OFF at
sensor SF2 or if the temperature falls below the value set at the storage tank thermostat, com-
mencement of storage tank charging initially only leads to a buildup of the charging temperatu-
re via the heat exchanger loop, i.e. the TLP is switched on, the ZP runs according to the function
block setting. If the temperature at flow sensor VF 1 attains the temperature at storage tank sen-
sor ON SF1, the SLP is switched on.
If the requirement is terminated by exceeding the adjustable differential gap at sensor SF1 or the
preset differential gap at the storage tank thermostat, the control valve closes and the flow tem-
perature is monitored at sensor VF1. The TLP is switched off if the temperature at sensor VF1 falls
below a definable fixed value. If CO2 FB 3 = ON, the SLP is switched off if the temperature at
sensor VF2 falls below a definable fixed value, in all cases however (with CO2 FB 3 = OFF also)
after two running periods of the control valve. The ZP runs according to a time program.
System code number 3 with CO2 FB 6 = ON (parallel pump operation)
A) The temperature at the flow sensor is higher than the charging temperature setpoint value
If the temperature in the storage tank falls below the value for drinking water requirement OFF at
sensor SF2 or if the temperature falls below the value set at the storage tank thermostat, com-
mencement of storage tank charging initially only leads to a reduction of the excessive flow tem-
perature via the heating loop.
At 5 K above the charging setpoint value (measured at flow sensor VF1), at the latest after 3 mi-
nutes, TLP and SLP start up. The UP continues to run, the ZP runs according to the function block
setting. If a value of more than 2 K below the charging temperature is registered for a time pe-
riod of 3 minutes, then the UP is switched off for 10 minutes.
If the requirement is terminated by exceeding the adjustable differential gap at sensor SF2 or the
preset differential gap at the storage tank thermostat, the controller initially runs at a fixed defi-
nable value at sensor VF1. When this is attained, at the latest after two running periods of the
control valve, the TLP is switched off. Subsequently the controller operates according to the hea-
ting characteristic again. The SLP continues to run for a period of two control valve running pe-
riods. If CO2 FB 3 = ON, the SLP is switched off if the temperature at sensor VF2 falls below a
definable fixed value, in all cases however (with CO2 FB 3 = OFF also) after two running periods
of the control valve. The ZP runs according to a time program.
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