25
10. Settings
(continued)
Settings
menu 5
10
10
Danger!
Temperature values which are set too high can lead to scalding
ordamage to the system. Scalding protection must be provided by
the customer!
10.4 Tmax S4
menu 5.x
= Switch-off temperature at sensor 4
If the temperature at sensor 4 exceeds this value, the corresponding pump
or valve is switched off.If the temperature drops below this value and all
the other conditions are met, the pump or valve is switched on again.
Settings range: 0°C to 99°C / Default: 60°C
10.5
Δ
T R1
Menu 5.x
= Switch on/Switch off temperature difference relais R1
If this temperature difference between the reference sensors is exceeded
and the other conditions are also met, then the controller switches the
pump and/or the valve on. If the temperature difference drops to
∆
T R1
Off, then the pump and/or the valve is switched off again.
Settings range:
∆
T
R1 from 3°C to 20°C /
∆
T
R1 Off from 2°C to 19°C
Default:
∆
T R1
10°C /
∆
T R1 Off
3°C
Caution
Smallest possible difference
∆
T R1 to
∆
T R1 Off is 1°C.
Smallest possible setting for
∆
T R1 is limited by
∆
T R1 Off
Highest possible setting for
∆
T R1 Off is limited by
∆
T R1
Caution
Setting the temperature difference too small may lead to ineffective op-
eration of the system and to frequent switching of the pump, depending
on the system and sensor positions. When using speed control, special
conditions apply.
