VI.c.9)
Reverse flow protection
This function allows to set boiler protection parameters for the cool water not to return from the main circulator
piping that may result in the corrosion due to low temperature. The protection of this reverse flow is set by closing
the valve when the temperature is too low until the necessary temperature is reached in the boiler short circuit. After
activation the user sets the minimum acceptable reverse flow temperature.
VI.c.10)
CH boiler protection
Note
This function is accessible when the valve is installed.
Protective function protects from excessive temperature formed in the CH boiler. The user sets the minimum
acceptable temperature of the return cycle. If the temperature increases dangerously, the valve is closed to cool down
the CH boiler. This function acts throughout the entire time.
VI.c.11)
Opening direction
Note
This function is accessible when the valve is installed.
If after the connection of valve to the controller it appears to be connected in a reverse order, it is not necessary to
change the power cable. It is enough to change the opening direction of this parameter:
LEFT or RIGHT
VI.c.12)
Single stroke
It is a maximum single stroke (closing and opening) for one temperature sample to be performed with the valve. If
the temperature almost meets the set temperature, the stroke is calculated according to
PROP_COEFF
parameter
value. The lower the single stroke, the more precise is the setting of temperature. However, it takes longer to reach
the set temperature.
VI.c.13)
Minimum opening
The parameter indicates the lowest valve opening parameter. Due to this parameter, the valve can be opened only
minimally to support the lowest possible flow.
VI.c.14)
Proportionality coefficient
Proportionality coefficient is applied to define valve stroke. The closer is the pre-set temperature, the lower is the
stroke. If the coefficient is very high, the valve takes less time for opening, but at the same time the opening is not
that precise. This formula is used to calculate the single opening percentage:
(PRE-SET_TEMP - SENSOR_TEMP) * (PROP_COEFF /10)
VI.c.15)
CH sensor option
This option is used to select the sensor used as CH sensor. It can be CH sensor or additional sensor (e.g. when a
buffer is used in the system).
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