Siemens LMU54 Series Basic Documentation page 168

DHW ................................................................ 12
DHW circulating pump ...................................... 108
DHW control
Aqua-booster system .................................... 103
Boiler temperature setpoint during DHW heating
with storage tank systems............................... 93
DHW temperature control ............................... 94
Instantaneous DHW system........................... 100
DHW sensor.................................................35, 96
DHW storage tank charging mode ............. 50, 52, 95
DHW temperature setpoint36, 50, 57, 93, 94, 95, 96,
99
Dimensions
AGU2.500A109 / AGU2.51xA109 .................. 131
AGU2.500A209........................................... 132
LMU5x... .................................................... 129
LMU6x... .................................................... 130
Mounting plate for clip-in module ................... 135
OCI420A109 ............................................... 133
OCI420A209 ............................................... 134
Diverting valve..........95, 100, 101, 103, 107, 108, 124
Diverting valve kick ............................................. 11
E
ECO functions
Automatic 24-hour heating limit ....................... 77
S / W changeover .......................................... 77
Electronic (S)LT ................................................. 40
Emergency operation............... 30, 35, 69, 78, 94, 98
Environmental protection..................................... 14
Error messages ....................................... 12, 86, 87
External components ........................................ 128
External DHW heating by ALBATROS controllers ... 83
Type of priority of DHW heating....................... 84
F
Fixed value control ........................35, 36, 69, 78, 98
Flow switch
DHW............................................................ 96
Heating circuit ............................................... 42
Flow switch / water pressure................................ 42
Flow temperature control.......................... 70, 71, 80
Flow temperature setpoint ..............30, 36, 61, 69, 80
Flue gas temperature.....................................37, 38
-sensor.................................................. 38, 124
-supervision .................................................. 39
-threshold ..................................................... 39
Forced signals ................................................. 105
Frost protection
AGU2.500...-................................................. 80
Boiler- ..............................................49, 52, 105
DHW operation- ............................................ 69
DHW storage tank-........................................ 56
DHW stratification storage tank- ...................... 56
Instantaneous DHW-............................... 56, 100
Modem function-.......................................... 106
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Siemens Building Technologies
HVAC Products
Basisdokumentation LMU54... / LMU64...
Index
Plant- ...........................................................55
Room- ..........................................................83
Functional test
AGU2.500... ..................................................81
Functions
AGU2.500...-.................................................79
AGU2.51x-....................................................89
Burner control-...............................................17
Controller- ................................................... 137
ECO-............................................................77
OCI420...-.....................................................82
Safety-..........................................................11
Special- ...................................................... 105
Supervision- ............................................ 11, 39
System- ........................................................86
G
Glossary of abbreviations
Constants ................................................... 148
Variables .................................................... 148
H
Heat generation manager................................... 162
Heating circuit ....................................................12
Heating circuit control
Attenuated outside temperature .......................70
Composite outside temperature .........................71
Heating curves...............................................72
Type of building construction ...........................71
Heating circuit extensions via ALBATROS controllers
.........................................................................82
Automatic changeover of operating mode..........83
Heat demand from the RVA.............................83
Locking and forced signals ..............................83
Heating circuit extensions via clip-in AGU2.500.......79
Heating curves of LMU................................... 72, 78
HMI...................................30, 35, 38, 51, 59, 74, 94
Hydraulic diagrams ..................................... 79, 149
Basic diagrams............................................ 149
Heat generation manager.............................. 162
Mixing circuit extensions via AGU2.500... ........ 153
Pump circuit extensions via AGU2.500............ 151
Zone extensions .......................................... 156
Hydraulic system management
Frost protection for the plant ............................55
I
Ignition device .................................................. 119
Instantaneous DHW heater ... 50, 53, 56, 57, 100, 103
L
Legend of parameter bit fields LMU...
Burner control program ................................. 145
Controller functions ...................................... 142
LPB............................................................ 147
Operating modes ......................................... 147
Legionella function............................................ 104
CC1P7494de
07.11.2002