Varmeteknikk AS
Phone +47 23 37 55 00 August 2020 V2
9
Remote control with external signals
The boiler has several possibilities for remote control from e.g. SD system (central operating
system). The regulator has an input for external start/stop of the boiler and with a 0 -10 V signal,
the boiler's operating temperature or power can be controlled.
External start/stop of boiler
Connection is made on the boiler's terminal block X1. The factory fitted latch between terminals 1
& 2 is removed. See page 10.
Temperature control 0-10 V
The desired set temperature can be controlled with an external signal 0 -10 V where 0 V = 0 ° C,
10 V = 100 ° C (V1725). The connection is made on terminals 30 (-) and 31 (+) on the controller
board. The input must be activated in the service menu, see page 12. In the «Temp IN» menu, this
is set to «ON» by pressing the «+» button twice. Then press the «E» button to save a new value.
Temp IN
ON
Press the menu button until the display shows
«Temp / Power»
again
.
With external temperature
control switched on, the display shows:
TempE 47.0(75)°C
Power 60kW
NB!
With external temperature control, the set temperature on the controller will function as a
maximum thermostat. This must therefore be set to the maximum desired temperature so as not to
limit the boiler.
Step / power control 0 - 10 V, possibly 10 - 0 V
The boiler's power can be controlled with an external signal 0 -10 V. However, the effect can only
be controlled at the entire effect stage. 0 V = 0 steps, 10 V = all steps (7). The connection is made
on terminals 29 (+) and 30 (-). The input must be activated in the service menu. In the «Power IN»
menu, this is set to ON by pressing the «+» button twice. Then press the "E" button to save a new
value.
NB!
If the signal is inverted, ie 0 V = all steps and 10 V = 0 steps, this is done by pressing the «+»
button 3 times. Then press the «E» button to save a new value.
Power IN
ON
Press the menu button until the display again shows «Step / Step time». With external step control
switched on, the display shows:
StepE 3 ( 7)
Step time 40s
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
