E/0310/
50
/21
If unit 1 is the StBy-unit (i.e. the unit, which is not in operation at the moment, due to
the sequencing), a colon („:“) is displayed in item „U“. If unit 2 is the StBy-unit the colon
disappears.
3K below the alarm „temperature too high“ the StBy-unit starts in addition. The sequencing
time will not be interrupted. At a hysteresis of 3K the unit stops again.
The sequencing uses the standard inputs for remote on/off and water detector/Aux1 and
the standard outputs for common alarm and heating 2.
If the input Aux1/water detector and/or the output heating 2 is needed, an extension board is
installed, on which one input and output are available for the sequencing. This way the 2nd
heating stage and the water detector input are available again on the processor board.
As the sequencing is carried out by using the input for remote on/off, the display of the
StBy-unit shows:
from version 2.1:
If the sequencing is enabled (i.e. menu item 24 > 0), the start of the
standby unit can be adjusted by DIP switch 1.
ON:
no start at limit value
OFF:
Start at 3K before attaining the limit value
"Temp. too high".
A connection scheme for both units is shown on the pages 32 and 36.
Item
25
Actual Opening degree CW Valve
In this item, the actual opening degree of the CW valve is displayed.
This item exists only at CW-units.
Содержание CompTrol 1002
Страница 1: ...CompTrol 1002 AIR CONDITIONING Index 50 Issue 3 10 MICROPROCESSOR TECHNICAL MANUAL...
Страница 2: ......
Страница 39: ......