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THE
ENERGY
FAMILY
(C) IDM Energiesysteme GmbH
General description
Installation instructions TERRA AL Twin
34
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6
M
ɾ
M
ɾ
M
ɾ
M
ɾ
70
71
Room
thermostat
Zone valve with
end switch
Navigator
main board
Roo
m
1
Roo
m
2
Roo
m
3
Zone 1
Zone 2
Zone 3
Roo
m
engine heating circuit A
Electrical connections
El
ec
trical co
nn
ec
tio
n
6.11. Maximum delimitation in underfl oor heating
In under
fl
oor heating circuits an additional application
thermostat has to be mounted and the appropriate
heating circuit feed has to be switched in series above
that.
6.12. Sum signal zone valves
In setting the sum signal zone valve a requirement
is generated if one of the zone valves is open. The
difference 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.
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.
6.13. Connecting external specifi cations 0-10V
To connect the reference value input 0-10V, the input
of the air humidity sensor is used. Via this 0-10V
signal the regulation of the target temperature is
speci
fi
ed.
Information on the electric details are found in the circuit diagram attached.
