Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 6 Boiler temperature control 2017-09-29
ErBu
PMinMon(Er3)
WLoLeDet(Er1)
BoPuEr
BuFb
TBo
BoPuEr_B
TRtBo
TFg
BoPu
BoPu_B
BuSt1
BuSt2
BuMdlt
BoSetpt
VlvShOff
VlvRtMx
PMaxMon(Er2)
BoPuErFlow
VlvShOffFb
3133S100
T
P
P
T
T
V
BoPu
Boiler pump
BoPu_B
Boiler pump B
BoPuEr
Fault input boiler pump
BoPuEr_B
Fault input boiler pump B
BoPuErFlow
Flow supervision boiler pump
BoSetpt
Boiler temperature setpoint DC 0…10 V
BuFb
Checkback signal burner stage 1
BuMdlt
Modulating burner
BuSt1
Burner stage 1
BuSt2
Burner stage 2
WLoLeDet (Er1)
Fault input 1 (water shortage)
PMaxMon (Er2)
Fault input 2 (maximum pressure)
PMinMon (Er3)
Fault input 3 (minimum pressure)
ErBu
Fault input burner fault
TBo
Boiler temperature sensor
TFg
Flue gas temperature sensor
TRtBo
Boiler return temperature sensor
VlvRtMx
Maintained boiler return temperature
VlvShOff
Shutoff valve
VlvShOffFb
Checkback signal shutoff valve
6.2 Configuration
The function block is activated in the factory for plant types H3-x and H4-x. Always
preconfigured is a boiler with a 1-stage burner, boiler pump, boiler temperature and
return temperature sensor. For plant types H4-x, a mixing valve with 3-position actuator
for the maintained boiler return temperature is also preconfigured.
For more detailed information, refer to section 3.2 "Basic configuration".
Main menu > Commissioning > Basic configuration
Operating line
Range
Factory setting
Plant type H, H0-1…H6-7
Refer to subsection 3.2.1
"Selecting the plant type"
H0-2
The basic configuration can be complemented and / or changed via "Extra
configuration". Here, the 1-stage burner can be changed to become a 2-stage or
modulating burner, and shutoff valve, twin pump, flue gas temperature sensor and
various checkback signals and fault status signals can be added. Naturally, plant types
H3-x can be complemented by a mixing valve for the maintained boiler temperature.
Boiler diagram
Basic configuration
Extra configuration