Siemens AVS75.39 Series User Manual page 176

Pressure acquisition
H1, H2 and H3
Water pressure max
Water pressure min
Water pressure critical
min
Pressure supervision
H1, H2, H3
Static pressure supervision
1, 2, or 3
176 / 239
Siemens
Building Technologies
Line no.
H1 H2 H3
6140 6150 6180
6141 6151 6181
6142 6152 6182
If the pressure acquired at input Hx exceeds the limit value set here, an
appropriate error message will be delivered.
117:Water pressure too high
176:Water press 2 too high
322:Water press 3 too high
If the pressure drops by one switching differential below the limit value, the error
will be deleted.
It the pressure value measured at input Hx breaches below the set limit value
(Parameter "Water pressure minimum"), the corresponding maintenance message
is triggered.
5:Water pressure too low
18:Water pressure 2 too low
22:Water pressure 3 too low
If the pressure exceeds the limit value by one switching differential, the
maintenance alarm will be deleted.
If the pressure acquired at input Hx falls below the limit value set here, an error
message will be delivered and both burner stages will immediately be shut down.
118:Water pressure too low
177:Water press 2 too low
323:Water press 3 too low
If the pressure exceeds the limit value by one switching differential, the error is
deleted.
Line no.
H1 H2 H3
6148 6154 6184
Defines the Hx input to be used for the respective static pressure supervision.
The Hx input must be defined accordingly and a pressure sensor connected.
User manual RVS43.345
The settings in detail
Operating line
Water pressure max
Water pressure min
Water pressure critical min
Operating line
Static press supervision 1, 2 or 3
None ¦ With input H1 ¦ With input H2 module 1 ¦ With input H2
module 2 ¦ With input H2 module 3 ¦ With input H21 module 1 ¦ With
input H21 module 2 ¦ With input H21 module 3 ¦ With input H22
module 1 ¦ With input H22 module 2 ¦ With input H22 module 3 ¦ With
input H3
CE1U2354en_021
2013-09-02