Varmeteknikk AS
Phone +47 23 37 55 00 August 2020 V2
6
Additional features
The controller has built-in a number of functions in addition to several inputs for remote control.
Power limitation II (step limitation)
If the boiler for one reason or another is too large for the plant, the boiler can easily be limited for
smaller effects. A potentiometer placed on the circuit board is adjustable from 0-100%. The boiler
can only be limited to the entire power stage.
External start/stop of boiler
The controller is equipped with an input for external start/stop of the boiler. This input can, among
other things, be used by the E-plants in connection with interruptions in the electricity supply by
accidental power. The signal may be inverted by moving a latch on the controller board. Connects
to terminal block list
–X1, clamps 1-2. See also page 11 and page 35.
Outdoor temperature compensation
The controller is prepared for control depending on the outdoor temperature. If an outdoor sensor
is connected, the set temperature will be adapted to the outdoor temperature. The slope curve
determines how much the boiler temperature should change in f.h.t. change in outdoor
temperature.
With the curve «parallel», it is determined how high the temperature of the boiler should be in
relation to a given outdoor temperature. When the outdoor sensor is switched on, the display will
show:
TempU 47.0 (50)°C
Power 60kW
NB! The boiler's operating temperature must be set high enough so that this does not limit the
maximum temperature the boiler can reach. The internal set temperature will, after the outdoor
sensor is connected, act as a maximum thermostat, and will not be able to be changed or
exceeded.
Temperature (in brackets) is a calculated trip temperature depending on the current outdoor
temperature. This cannot be changed. With two presses of the menu button, the outdoor
temperature and the selected curve for parallel displacement can be read in the display.
Outdoor temp 5°C
Parallel 0°C
Factory outdoor temp compensation curve
:
Parallel:
0
Curve:
40
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
