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Duct or pipe sensors
Installing temperature sensors
For measuring outlet air:
after delivery fan or
after coil to be controlled, at a distance of at least 0,5 m
For measuring room temperature:
before return air intake fan and near room's return airintake. For
measuring saturation temperature:
Bend 0.4m sensor by hand (never use tools) as illustrated.
Use whole cross-section of duct, min. distance from walls 50 mm,
radius of curvature 10 mm for 2m or 6m sensors.
Installing combined humidity sensors
As max. humidity limit sensor on outlet (steam humidifiers).
Installing pressure sensors
A - installation on ducts carrying fluids at max. temperature 80°C
B - installation on ducts at temperature over 80°C and for refrigerants
C - installation on ducts at high temperatures:
after mist eliminator.
Installing differential pressure sensors for water
Installation with casing facing down not allowed.-With temperature
To avoid damaging the sensor, you must comply with the following
make sure pressure difference is not greater than thevalue permitted
when there are high static pressures, make sure you insert shutoff
Putting into operation
Start disable
1=open C1=open C
2=open A2=close B
3=open B3=close A
4= close C
increase length of siphon
place sensor at side to prevent it being hit by hot air coming from
the pipe.
over 80°C, siphons are needed.
instructions
when installing:
by the sensor
valves A-B-C.
12
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