20
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: after mist eliminator.
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 :
·"increase length of siphon
"place sensor at side to prevent it being hit by hot air coming from
the pipe.
Bend 0.4m sensor by hand (never use tools) as illustrated .
Installing differential pressure sensors for water
Installation with casing facing down not allowed.
With temperature over 80°C, siphons are needed.
To avoid damaging the sensor, you must comply with the following
instructions :
when installing: make sure pressure difference is not greater than the value
permitted by the sensor
when there are high static pressures, make sure you insert shutoff valves
A-B-C.
Putting into operation
Start disable
1=open C1=open C
2=open A2=close B
3=open B3=close A
4= close C
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) .
Содержание PBY1025
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