11
APPENDIX: PROBES CONNECTION
To assure the utmost comfort, the control system needs reliable information, which can be obtained provided the sensors have been installed correctly.
Sensors measure and transmit all variations encountered at their location.
Measurement is taken based on design features (time constant) and according to specific operating conditions.With wiring run in raceways, the sheath
(or pipe) containing the wires must be plugged at the sensor's terminal board so that currents of air cannot affect the sensor's measurements.
Ambient probes (or ambient thermostats)
Installation
T
he sensors (or room thermostats) must be located in
reference rooms in a position where they can take real temperature
measurements without being affected by
foreign factors.
Outside probes (weather)
Installation
In heating or air-conditioning systems featuring adjustment in
response to outside temperature, the sensor's positioning is of
paramount importance.
It's good to be admired …even better to be effective
Heating systems: the room sensor must not be installed in rooms
with heating units complete with thermostatic valves. Avoid all
sources of heat foreign to the system.
General rule:
on the outer wall of the building where the living rooms
are, never on the south-facing wall or in a position where they will be
affected by morning sun. If in any doubt, place them on the north or
north-east façade.
Location
On an inner wall on the other side of the room to heating unitsheight
above floor 1.5 m, at least 1.5 m away from external sources of heat
(or cold).
Installation position to be avoided
near shelving or alcoves and recesses, near doors or win-dows,
inside outer walls exposed to solar radiation or currents of cold air, on
inner walls with heating system pipes, domestic hot water pipes, or
cooling system pipes running through them.
Positions to be avoided
Avoid installing near windows, vents, outside the boiler room, on
chimney breasts or where they are protected by balconies, cantilever
roofs.
The sensor must not be painted (measurement error).
Summary of Contents for KTP1030
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