Varmeteknikk AS
Phone +47 23 37 55 00 November 2021
V2
10
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 11.
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
Note!
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.
Note!
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 ( 15)
Step time 40s
Cooke Industries - Phone: +64 9 579 2185 Email: [email protected] Web: www.cookeindustries.co.nz
