User Manual

Transmission of actual operating mode to Siemens boiler management unit
When REA23M recognizes a connected boiler management unit LMU33, LMU36,
LMU54, LMU55, LMU64, LMU65 from Siemens (refer to user guide), the actual operat-
ing mode of the REA23M is being transmitted to the boiler management unit. Connect-
ing other Siemens boiler management units or boiler management units from other
manufacturers, the actual operating mode of the REA23M is not being transmitted. This
procedure runs automatically. It can neither being influenced manually nor being
switched off.
Following data of actual operating mode is being transmitted to the boiler management
unit by ID129:
Frost protection (active in operating mode „Frost protection“)
REA23M
Reduced (active in operating modes "continuous economy mode“,
"holiday mode“, with active remote control and during economy
periods in operating modes “Auto” and "24-hour operating mode
with one heating period“)
Nominal (active in operating mode "continuous comfort mode“ and during
comfort phases in operating modes “Auto” and „24-hour operating
mode with one heating period“)
Quick setback (active when adjusting a lower temperature setpoint,
e.g. changing operating mode from "continuous comfort mode“
to “continuous economy mode”)
Factory settings
Switching times Temperatures in °C
1
st
period
2
nd
period
3
rd
period
Oper-
ating
mode
Block /
week-
days
1
st
period 2
nd
period 3
rd
period
Auto
1-5
Mo-Fr
6-7
Sa-Su
06.00
07.00
08.00
23.00
11.00 13.00 17.00 22.00 19
19
20 21 16
16
1-7
Mo-Su
00.00 24.00 19
1-7
Mo-Su
00.00 24.00 16
1-7
Mo-Su
00.00 24.00 5
10
Absence 12
Setpoint limitation
Optimum start control
(OFF)
Temperature control:
(permanent self-learning)
Factory settings
heating engineer level
8/14
Building Technologies Room temperature controller REA23M CE1N2217en
HVAC Products 17.04.2007