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Electrically and hydraulically assembling and installing the measuring points
9.1 Identity code for "sample water" designated "H"
9.2 Electrical installation of the measuring and control station
The following applies to the identity code for "sample water" desig‐
nated "H" for hot water up to max. 65 °C:
max. permitted water pressure, at 65 °C
WARNING!
Danger of scalding
People in the vicinity can be scalded should hot
water spray out of the hydraulic components.
–
Take appropriate protection measures, e.g.
protective glasses and protective clothing.
If sensors are ordered separately, only use sen‐
sors suitable for use with temperatures of at least
65 °C and pressures of at least 2 bar.
WARNING!
Live parts
Possible consequence: Fatal or very serious inju‐
ries.
Measures:
–
Switch off the system until de-energised before
opening the housing of the controller and/or
terminal box.
–
If the housing of the controller and/or terminal
box is ruptured or obviously damaged, immedi‐
ately switch off the system and have it
repaired.
–
Only carry out set-up / maintenance / repair
and service work when the system is shut
down and the electrical power disconnected.
Calibration and maintenance work on the sen‐
sors represents an exception to this. This can
also be done when the system is live. Please
also observe the information in the operating
instructions for the sensors and controller.
–
Check that the seals are sitting correctly after
closing the housing of the controller and/or ter‐
minal box.
We always recommend using appropriate residual
current circuit breakers (RCCB) or other residual
current devices (RCD) provided they can be
installed sensibly and professionally within the
electrical installation. Please adhere to all national
standards and regulations.
2 bar
39
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