TACOCONTROL Z1 S
Appendix for service personnel
Main overview ► Heating control
HMI text
Description
Value range
HTG supply tem-
perature
Supply temperature of the heating water
*Ctrl value HTG
valve
Control value for the control valve of the heating control
Setpoint HTG
supply
Setpoint for the supply temperature of the heating water
15 – 70 °C
*Input HTG
demand
Input signal from the room thermostat
Passive: No heat request
Active: Heat request
*Relay heating
pump
Signal at heating circulation pump
0%: No signal
100%: Pump activated
Main overview ► Heating control ►
Service settings Htg
HMI text
Description
Value range
*Max. HTG supply
temperature
Specifies the maximum temperature allowed in the heating supply. If this
value is exceeded in the heating supply, the valve for the heating supply
control closes and the circulation pump stops.
20 – 80 °C
*Min. dT Supply-
T_Htg
Minimum temperature difference allowed between the supply tempera-
ture from the heat network and the setpoint for the heating supply tem-
perature. If this temperature difference is not guaranteed, the setpoint is
reduced automatically.
0 – 10 °C
Main overview ► Functions primary side
HMI text
Description
Value range
Heat supply tem-
perature
Temperature of the water from the heat network
*Max. heat supply
temperature
Specifies the maximum temperature allowed in the heating supply.
50 – 100 °C
On level KWF
If the temperature on the primary side (supply from the heat network) falls
below this level, then the keep warm function is switched to active.
10 – 70 °C
Off level KWF
If the temperature on the primary side (supply from the heat network)
exceeds this level, then the keep warm function is deactivated.
10 – 70 °C
*Relay KW func-
tion
Signal for the keep warm function valve
Off: Valve closed
On: Valve open
*Input remote-off
Input signal from prepaid circuit
Passive: Contact open
Active: Contact closed
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Operating instructions
05/2024 Item no. 215251 EA no. EA-1291
