Siemens LMU64 Series - Switching Differentials; Controller Functions

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Siemens Building Technologies Basic Documentation LMU54... / LMU64... CC1P7494en
HVAC Products 12 Parameter list / legend of parameter bit fields LMU... 07.11.2002
No Name Group Function Range
No
QAA73
AGU2.310
Level
QAA73
AGU2.310
LevelNo
PC_Tool
Level
PC_Tool
Switch-on / -off thresholds
117
SdHzEin
Boiler
Switch-on differential of burner in heating mode
0.5 ... 32 K
523
Engineer
5
Installer
118 SdHzAusMin Boiler
Minimum switch-off differential of burner in heating
mode
0.5 ... 32 K 524 Engineer 5 Installer
119 SdHzAusMax Boiler
Maximum switch-off differential of burner in heating
mode
0.5 ... 32 K 525 Engineer 5 Installer
120 SdBwEin1 DHW
Switch-on differential of burner in DHW heating mode
(sensor 1)
0.5 ... 32 K 526 Engineer 5 Installer
121 SdBwAus1Min DHW
Minimum switch-off differential of burner in DHW
heating mode (sensor 1)
-32 ... 32 K 527 Engineer 5 Installer
122 SdBwAus1Max DHW
Maximum switch-off differential of burner in DHW
heating mode (sensor 1)
-32 ... 32 K 528 Engineer 5 Installer
123 SdBwEin2 DHW
Switch-on differential of burner in DHW heating mode
(sensor 2)
0.5 ... 32 K 529 Engineer 5 Installer
125 SdBwAus2Max DHW
Maximum switch-off differential of burner in DHW
heating mode (sensor 2)
-32 ... 32 K 531 Engineer 5 Installer
323 Sd_RL_groesser_VL Boiler (S) LT
Threshold switch-off temperature when comparing
boiler flow / return temperature (el. LT)
5 ... 20 K 3
OEM
(production)
Configuration
126
Sth1
Weather compens HC1
Heating curve slope heating circuit 1
1 ... 40
532
Enduser
6
Enduser
127 Sth2
Weather compens
AGU2.500
Heating curve slope heating circuit 2 1 ... 40 533 Enduser 6 Enduser
128
DtR1
Weather compens HC1
Room setpoint readjustment heating circuit 1
-31 ... 31 K
534
Enduser
5
Installer
129 DtR2
Weather compens
AGU2.500
Room setpoint readjustment heating circuit 2 -31 ... 31 K 535 Enduser 5 Installer
135 PhzMax Heating mode
Maximum degree of modulation in heating mode
(LmodTL <= PhzMax <= LmodVL)
0 ... 100 % 541 Engineer 4 OEM service
137 NhzMax Heating mode
Maximum speed at maximum output in heating mode
(maximum speed limitation)
0 ... 12750 rpm 536 Engineer 4 OEM service
144 PminHuKw Boiler INFO value Minimum boiler output in kW (Hu) 0 ... 65535 kW 542 Engineer 5 Installer
145
PmaxHuKw
Boiler INFO value
Maximum boiler output in kW (Hu)
0 ... 65535 kW
543
Engineer
5
Installer
175
NqmodMin
PWM pump
Minimum pump speed permitted for the heating plant
10 ... 100 %
538
Engineer
5
Installer
188 NqmodMinBw PWM pump
Minimum pump speed for full charging of stratification
storage tank
10 ... 100 % 539 Engineer 5 Installer
174 NqmodNenn PWM pump Pump speed at the heating plant's design point 1 ... 50 537 Engineer 5 Installer
180 QmodDrehzStufen PWM pump
Number of speeds of modulating pump (supplier
specification)
2 ... 50 540 OEM 4 OEM service
146 QmodMin PWM pump
Minimum degree of modulation of modulating pump
(supplier specification)
0 ... 70 % 548 OEM 4 OEM service
147 QmodMax PWM pump
Maximum degree of modulation of modulating pump
(supplier specification)
10 ... 100 % 549 OEM 4 OEM service
435 Klambda1 PWM pump
Filter time constant of actual values of flow / return
temperature of dT control
0 ... 1 586 OEM 4 OEM service
148
Kon
Heating mode
Constant for quick setback without room influence
0 ... 20
551
Engineer
5
Installer
179 KtAbtastDt PWM pump
Sampling factor of dT control
(as a factor for TabtastK)
0 ... 50 550 OEM 4 OEM service
149
HydrSystem
Boiler
Hydraulic system adjustment
0 ... 255
552
Engineer
5
Installer
193 KonfigHks Heating mode Configuration of heating circuits 0 ... 255 553 Engineer 5 Installer
194 KonfigRg0 Boiler
Setting flags: status code open-circuit sensor for Anx
channel suppressed / not suppressed
0 ... 255 554 Engineer 4 OEM service
150 KonfigRg1 Boiler Setting flags 0 ... 255 555 Engineer 6 Enduser
151
KonfigRg2
DHW-inst DHW heater
Instantaneous DHW heater setting flags
0 ... 255
556
Engineer
5
Installer
152 KonfigRg3 Boiler AD converter configuration and heating demand 0 ... 255 557 Engineer 5 Installer
153
KonfigRg4
Boiler
Setting flags
0 ... 255
558
Engineer
5
Installer
154 KonfigRg5 Boiler Setting flags 0 ... 255 559 OEM 4 OEM service
155 KonfigRg6 Boiler Setting flags 0 ... 255 560 OEM 4 OEM service
182
KonfigRg7
Boiler
Setting flags
0 ... 255
561
Engineer
5
Installer
328 KonfigRg8 DHW-inst DHW heater Setting flags for instantaneous DHW heater 0 ... 255 587 Engineer 5 Installer
427 dTzapfEnde DHW-inst DHW heater
Response threshold for detection of DHW consumption
with instantaneous DHW heater
-2 ... 1,984375 K/s 599 Engineer 5 Installer
428 dTzapfKomf DHW-inst DHW heater
Response threshold for detection of DHW consumption
with instantaneous DHW heater in Comfort mode
-2 ... 1,984375 K/s 600 Engineer 5 Installer
429 dTzapfHz DHW-inst DHW heater
Response threshold for detection of DHW consumption
with instantaneous DHW heater in heating mode
-2 ... 1,984375 K/s 601 Engineer 5 Installer
433 LmodRgVerz Boiler
Output during controller delay time
(LmodTL <= LmodRgVerz <= LmodVL)
0 ... 100 % 598 Engineer 5 Installer
439 ZeitKoLrelGedStand Boiler OCI420
Time constant for filtering the relative burner output
delivered via LPB bus
0 ... 2550 s 3
OEM
(production)
440 Kalibrationsfaktor Boiler OCI420
Calibration of LMU for load signal delivered via LPB to
match effective output
-128 ... 127 3
OEM
(production)
470
KonfigEingang
Boiler
Progr input LMU basis
0 ... 255
614
Engineer
5
Installer
Switching differentials
Controller functions