oventrop Regtronic RH HT, Installation And Operating Instructions For The Specialised Installer, Page: 40 / 56

40
Installation
Commissioning
Settings
Data comm
unication
Tr
oubleshooting
en
Function block
In addition to the pre-defined optional functions, function blocks consisting of
thermostat functions, timer and differential functions are available. With the help
of these function blocks, further components and functions respectively can be
controlled.
To each function block, sensors and free relays can be allocated. Sensors already in
use can be allocated again without impeding their control functions.
Within a function block the functions are interconnected (AND gate). This means
that the conditions of all the activated functions have to be fulfilled for switching
the allocated relay. As soon as one condition is not fulfilled, the relay is switched
off.
Thermostat function
The relay allocated to the function block is switched on, when the adjusted
switch-on temperature (Th(x) on) is reached. It is switched off when the adjusted
switch-off temperature (Th(x)off) is reached. The switching conditions of all other
activated functions of the function block have to be fulfilled as well.
Allocate the reference sensor in the Sensor channel.
Adjust the maximum temperature limitation with Th(x)off > Th(x)on and the min-
imum temperature limitation with Th(x)on> Th(x)off. The temperatures cannot be
set to an identical value.
D T function
The relay allocated to the function block is switched on as soon as the adjust-
ed switch-on temperature difference (
D
Th(x)on) is reached. It is switched off as
soon as the adjusted switch-off temperature difference (
D
Th(x)off) is reached. The
switching conditions of all other activated functions of the function block have to
be fulfilled as well.
The
D
T function is equipped with a speed control function. A set temperature dif-
ference and a minimum speed can be adjusted. The non-adjustable rise value is 2 K.
Reference relay
Up to 5 reference relays can be selected.
Whether the reference relays are to be switched in series (AND) or in parallel
(OR) can be adjusted in the Mode channel.
OR mode
If at least one of the reference relays is active, the switch-on condition for the
function block is considered fulfilled. The switching conditions of all other activat-
ed functions of the function block have to be fulfilled as well.
AND mode
If all reference relays are active, the switch-on condition for the function block is
considered fulfilled. The switching conditions of all other activated functions of the
function block have to be fulfilled as well.
Function
Thermostat a
Tha- S3* Thb-S4* Timer R3*
RX
D
T-S3>S4*
Thermostat b
D T function
Timer
Reference relay
Reference
relay
1. in parallel (OR) 2. in series (AND)
Reference relay
Reference relay 1
Reference relay 1
Reference relay 2
Reference relay 2
Reference relay 3
Reference relay 3
Reference relay 4
Reference relay 4
Reference relay 5
Reference relay 5
* exemplary selection, sensors and relays can be allocated freely
Relay