Metal-Fach ecoMAX860P TOUCH, Operating Manual, Page: 38 / 44

38

Floor On
It is being used when the mixer circuit is loading floor heating
installation. The maximum mixer circuit temperature is limited to the
value of max. mixer set temperature.
Attention: after choosing the option
– FLOOR switched on the
parameter of max. mixer set temperature should be so edited, that the
floor heating will be not damaged and there would be no danger of
scalding.

Pump only
By the moment when the mixer circuit temperature exceeds the set
temperature in the parameter mixer set temperature, the mixer pump
supply will be shut down. When the circuit temperature will drop by
2˚C then the pump will again be switched on. This option is usually be
used for control of floor heating pump in situation, when this pump is
operating together with thermostatic valve without actuator.
Thermostat select
Options to choose from:
Off: (it cuts the influence of room thermostat upon the boiler
operation.)
Universal: (it turns on the NO-NC room thermostat coupled to 42-43
contacts, it is required to use thermostats with 1K hysteresis.)
ecoSTER: (this option is available after remote control device
ecoSTER TOUCH is being connected, thermostat signal is being send
from room panel.)
Min. mixer temperature
It is the parameter used for limitation of choosing too low value of set
mixer circuit temperature by the user. Automatic regulation (e.g.
periodic temperature reduction) also does not cause the reduction of
set temperature value below the value given in this parameter.
Max. mixer temperature
This parameter has two functions:
_ it enables the limitation of choosing too high value of set mixer
temperature by the user. Automatic regulation (correction upon
heating curve, that comes from outside temperature) also does not
cause crossing the set temperature above the value given for this
parameter.
_ when the
Mixer support = On , then the mixer pump will shut down
by max. mixer temperat
ure +5˚C, which protects the floor against
destruction. For the floor heating it should be set for the value below
45+/-
50 ˚C or even lower, when the thermal resistance of this floor is
lower. Attention: setting too lower value of this parameter can lead to
unnecessary shut down of the pump.
Proportionality range
This parameter affects the movement of the mixer actuator. Increasing
this value results in the mixer reaching the set temperature faster.
Setting this parameter to excessive values causes deregulation of the
temperature and unnecessary actuator movement. The proper values
is set experimentally. It is recommended to set this parameter in the
range of 2-6 [3].
Integration time constant
The greater the value of this parameter, the slower is the actuator
reaction for temperature deviation. Setting too lower values can lead
to unnecessary actuator movements, too high value extending the
time needed to find set value of the temperature. The right value is
being edited according to research results. It is recommended to set
this parameter value between 100 and 180 [160].
Valve opening time
The time of valve full opening should be entered
– this time can be
read from the nameplate of valve actuator, e.g. 140s.
Pump Off by thermostat
Setting this parame
ter to “YES” results in closing the mixer and
deactivating the mixer pump after opening the room thermostat
contact (the room is warm). This setting is not recommended because
the heated room may cool down too much.
Mixer input dead zone
This parameter determines the value of temperature insensitivity
(dead zone) of the mixer control system. The regulator controls the
mixer so that the measured temperature in the mixer circuit sensor is
equal to the set temperature. In order to avoid frequent actuator
movements which can wear it down unnecessarily, the parameter
should only be regulated when the measured temperature of the mixer
circuit is lower or higher than the set temperature by a value
exceeding the
Mixer input dead zone .
14.6 OTHER PARAMETRES
Show advanced setup
Available options:
YES (shows hidden parameters, which edition is not recommended)
NO (hides hidden parameters).
Restore default settings Restoring the service settings will automatically lead to restoring the