33
H2 and H3 circuit settings
–
regulated
Name
Range
Settings
Description
Mode
OFF, ON
(radiators), ON
(floor)
ON
(radiators)
OFF
–
disables operation of the circuit, then all parameters related
to this circuit are invisible and inactive.
ON
(radiators)
–
circuit is on and supplies radiators,
ON
(floor)
–
circuit is on and supplies floor heating. For this setting,
the controller protects from exceeding a limit temperature in the
floor circuit. High temperature in the floor circuit can cause damage
to flooring and scalding to users. Screed drying function is active.
Control method
Constant value,
Weather control
Weather
control
Constant value
–
constant preset temperature of water in
adjustable circuit is maintained,
Weather control
–
water preset temperature of water in the circuit
is set with consideration to external temperature sensor readings.
Parameter is invisible if no external temperature sensor is
connected. When the weather temperature sensor is defective or
not connected, the setting of the
Control method
is permanently
changed to
Constant value
.
Weather-set
temperature
Settings related to weather control.
➢
Heat curve
The graph
depends on four
exterlan
temperatures
Selection in the form of a heating curve graph on which the set
temperature of the heating circuit for four intermediate weather
temperatures is set: 10°C, 0°C,
-
10°C and
-
20°C (for proper
operation of the valve).
To set the preset temperature, touch the corresponding point and
move it up or down. The higher heating temperature, the higher
temperature of water in the heating circuit. Parameter becomes
available when Control method = Weather control. Detailed
description can be found in point 10.4
➢
Curve parallel
shift
-20
…
20
0°C
Parameter enables to readjust the heating curve. Parameter
becomes available when
Control method
=
Weather control
.
➢
Preset water
temperature
20…85
45°C
The
Preset water temperature
can only be set when the
Control
method
=
Constant value
. Then the temperature in the regulated
circulation is kept constant. The parameter is not available when
Control method
=
Weather control
.
Water temperature
reduction value in
NIGHT mode*
0…80
10°C
When
Control method
=
Constant value
, then a constant preset
temperature of water in the circuit is decreased for regulation
modes: NIGHT, AUTO.
➢
Thermostat
NO, YES
YES
Parameter assigns a thermostat to the heating circuit.
OFF
–
room temperature has no effect on the heating circuit,
ON
–
the thermostat has an effect on the preset water temperature
in the heating circuit, reducing it or completely switching off the
heating circuit.
➢
Reduce water temp.
by thermostat
0…80
10°C
The parameter is applicable only when
Thermostat
=
ON
.
Exceeding a room preset temperature causes a decrease of preset
temperature of water in the heating circuit
Reduce water temp. by
thermostat
.
Decreasing the preset temperature takes place at the moment of
opening thermostat contact. The preset temperature of the water
in the heating circuit is not changed when the
Reduce water temp.
by thermostat
= 0. The parameter disappears when the
Thermostat
=
OFF.
Pump lock by
thermostat
NO, YES
NO
NO
–
the thermostat has no effect on the circuit operation,
YES
–
the circuit will be switched off when the temperature preset
on the thermostat is reached.
Minimum
temperature
15…65
20°C
Minimum preset temperature of water in the heating circuit.
Maximum
temperature
20…90
70°C
Maximum preset temperature in the heating circuit. In the
Maximum temperature
>55°C
and
Mode
= ON (floor), the controller
will take 55°C as a maximum value in order to avoid the risk of
scalding and the risk of damaging the floor structure.
Valve opening time
60 … 255
140s
Read valve full opening time from a servo housing, e.g. It is usually
located on a servo nameplate and within a range of 90
…
180s.
Operation in
SUMMER
NO, YES
NO
Parameter enables to enable the heating circuit outside a heating
season despite of
SUMMER mode
=
ON
setting. For instance, floor
heating in a bathroom can be enabled in spring or autumn if there
is no need to heat the whole building but the user wants to heat the
bathroom.
Mixer input dead
zone
0,0…4,0
2°C
Parameter setting defining a temperature dead zone for the
adjustable circuit. The controller controls a servo in such way that
the temperature measured by a circuit sensor is equal to a preset