1.
Remore On/Off: Terminals 7-8 must be short-circuited to allow the USER INTERFACE and then the Unit to light up.
In W.S.: The temperature sensor "In W. S.", for the return water from the Unit must be disconnected from the PCB.
2.
Temp. Water Supply System: The 10 kΩ temperature sensor must be connected between terminals 3-4 at 25°C to detect the temperature of the
3.
water delivered to the radiant system.
4.
Set Point 2: A switch needs to be set up between terminals 13-14 , which enables water production to the second set point when it is closed,
suited for fancoil operation.
5.
Out Signal 0-10Vdc: Mixing valve cables Y and G0 are connected between terminals + and - (0-10V modulating signal).
6.
Power Supply 24V 6VA: Mixing valve cables G0 and G are connected between terminals 26-27 (24V 6VA power supply).
NOTE: cable G0 of the mixing valve is shared by terminals – and 26, which can accordingly be short circuited.
7.
Out Pump 2: The pump for the radiant system must be connected between terminal I and the neutral of the terminal block.
8.
Either the KCTR can be used as a room thermostat, or a simple thermostat set up between terminals L-K for systems that only have pump P1, or
that have the phase on terminal J for systems where the radiant area is served by pump P2.
1.4 PARAMETER CONFIGURATION
1.
To access the configuration parameters, insert password "48".
2.
Parameter configuration from the "Set" menu:
Menù
Par
Label
Description
label
Configuring the signal to the terminals 3-4 (Temp. Water Supply
System), on the PCB-TERMINAL BLOCK :
0: STANDARD. Temperature signal from the sensor installed on the
water return. The "In W.S." connector must be
connected to the PCB-TERMINAL BLOCK. 1: NTC_RADIANT. The
temperature of the water
delivered to the radiant system is measured (sensor duly set up
SEnS
110
P3-4
by the installation technician). The "In W.S." connector must be
disconnected from the PCB-TERMINAL BLOCK. The temperature is
measured on the storage, for the advanced control of an additional
generator (sensor duly set up by the installation technician). The "In
W.S." connector must be disconnected from the PCB-TERMINAL
BLOCK.
Parameter configuration from the "Prg" menu:
3.
Menù
Par
Label
Description
label
224
EMA
Maximum hot water temperature to the radiant system
Disable the use of the dew temperature to calculate the minimum
cold water reading to the radiant system
On:
The set "EN im" value is applied as the minimum temperature of the
225
ddEU
cold water to the radiant system (par 228).
Off: The value calculated on the "EL im" dew point is applied as
the minimum temperature of the cold water to the radiant system
(par229).
Dew Point If the KCTR is not connected, or in case of AMbt, AMbH
226
tdEU
or rEMc alarms, this reading is 0.
USYS
Offset between the dew temperature and the minimum temperature
of the cold water to the radiant system To take into account the type
227
StrU
of radiant system structure, the minimum temperature of the cold
water is provided by the dew temperature plus this value.
The value that is used, as the minimum temperature of the cold
water to the radiant system, if the dew temperature "tdEU" is not
228
EMin
available (par226) or if "ddEU" is set as (par225) = On.
Data from the calculation: "tdEU"(par226) + "StrU"(par227). The va-
lue that is used, as the minimum temperature of the cold water to the
229
eLiM
radiant system, if the dew temperature "tdEU" is available (par226)
or if "ddEU" is set as (par225) = Off.
Enclosed documents
121
U.m.
Range
Default
min
max
-
0
3
0
U.m.
Range
Default
min
max
°C
10
60
45
-
On
Off
Off
Read
°C
-
-
value
°C
-10
10
-2
°C
12
25
18
Read
°C
-
-
value
EN
Correct
Address
1
16389
Correct
Address
16433
16434
8990
16435
16436
8991