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7. General description
Electrical connection
7.9. Connecting external specifi cations 0-10 V
To connect the reference value input 0-10 V, the in-
put of the air humidity sensor is used. Via this 0-10
V signal the regulation of the target temperature is
specifi ed.
7.10. Sum signal zone valves
In setting the sum signal zone valve a requirement
is generated if one of the zone valves is open. The
diff erence to the room thermostat function is that irre-
spective of heating or cooling operation a requirement
in the closed contact of a zone valve is generated.
Room
thermostat
Room 1
Zone valve with
M
M
end switch
Zone 1
Navigator
72
main board
Room engine heating circuit A
If zone valves are used, a sum signal of
all zone valves can be generated to be
able to switch the heating and cooling
circuit ON resp. OFF with the thermostat
function.
7.11. EMC compatibility
Some remarks regarding problems with EMC: Elec-
tromagnetic compatibility requires all manufactures
and operators of modern electrical engineering and
electronics to invest higher amounts of money and
more know-how from year to year.
As the number of electronic devices in use is con-
tinuously rising, the number of potential disturbance
sources also rises. Together with the lines of the
energy supply companies, of transmission equipment
and other communication facilities §electromagnetic
pollution" that is invisible for us is created.
60
Room 2
Room 3
M
Zone 2
Zone 3
73
Installation instruction AERO ILM
These disturbances have an eff ect on all systems, not
only on biological (on creatures), but also on electro-
technical systems. They lead to undesired error fl ows
which can have diverse eff ects.
The eff ects on biological systems are extremely diffi -
cult to fathom, the eff ects on electrotechnical systems
are, however, measurable, and in the most unfavor-
able case also visible.
The disturbances can have various eff ects:
- Short-term measurement errors
- Long-term measurement errors
- Short-term interruption of data connections
- Long-term interruption of data connections
- Data loss
- Damage to the equipment
In principle, all electrotechnical systems can repre-
M
sent possible sources of interference, e.g. contactors,
electric motors, transmitters, line voltage or high
voltage lines, etc. whereby the infl uence of the equip-
ment can take place on the various coupling paths
(galvanic, inductive, capacitive, by radiation).
We have undertaken everything possible to make the
navigator regulation as fail-safe as possible (hard-
ware design, EMC--proof control panel, network fi lter
etc). It now lies within the fi eld of responsibility of the
electrician in setting up the electronic installation to
avoid possible coupling paths.
Information on the electric details are
found in the circuit diagram attached.
(C) IDM Energiesysteme GmbH
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