Siemens LMU64 Series - Page 7

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Siemens Building Technologies Basic Documentation LMU54... / LMU64... CC1P7494en
HVAC Products Contents 07.11.2002
− Instantaneous DHW system ........................................................100
− Notes ...................................................................................100
− Hydraulic diagram..................................................................100
− Operating mode........................................................................100
− Outlet temperature control (FS-DHW is closed)..........................100
− Comfort control (after FS-DHW opening)...................................100
− Aqua-booster system..................................................................103
− Hydraulic diagram..................................................................103
− Operating mode........................................................................103
− Outlet temperature control.......................................................103
− Comfort control......................................................................103
− Legionella function ....................................................................104
7.1 Special functions ..............................................................................105
− Forced signals ..........................................................................105
− Parameterization.......................................................................105
− Via PC tool ACS420 and OCI490... ..........................................105
− Via QAA73... / AGU2.310........................................................105
− Via AGU2.361 / AGU2.303......................................................106
− Programmable input of the LMU... ...............................................106
− Modem function.....................................................................106
− Warm air curtain function ........................................................106
− Programmable output of the LMU... .............................................107
− Status output.........................................................................107
− Alarm output..........................................................................107
− Operational status signal.........................................................107
− Switching off the external transformer .......................................108
− Pump output second heating circuit..........................................108
− DHW circulating pump............................................................108
− Actuating device with warm air curtain function activated.............108
− Pump of pressureless header ..................................................108
− Basic function of controller clip-in module..................................108
− Actuating device with full DHW charging activated......................108
− Actuating device when analog signal exceeds threshold..............109
− Power concept..........................................................................109
8 Basic diagram.................................................................................110
8.1 LMU... .............................................................................................110
9 Connection diagrams......................................................................111
9.1 LMU... .............................................................................................111
9.2 DHW stepper motor (bipolar)..............................................................112
9.3 AGU2.104A109................................................................................112
9.4 AGU2.500A109................................................................................113
9.5 AGU2.500A209................................................................................114
9.6 OCI420A109 ....................................................................................115
9.7 OCI420A209 ....................................................................................116
9.8 AGU2.51x ........................................................................................117
9.9 Connecting cable between OCI490... and PC.......................................118
9.10 Mounting, electrical installation and service..........................................119
− Mounting (general) ....................................................................119
− Mounting the LMU5x...............................................................119