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Siemens Building Technologies
Basic documentation RVD240
CE1P2384en
HVAC Products
Index
27.05.2004
M
mains voltage side .......................................... 107, 109
manual d.h.w. heating............................................... 62
manual operation .............................................. 23, 103
manual storage tank heating..................................... 63
manual switching on / off of d.h.w. heating ............... 62
master clock.............................................................. 76
maximum limitation of primary return
temperature .......................................................... 91
maximum limitation of rate of flow temperature
increase ................................................................ 51
maximum limitation of setpoint rise........................... 51
maximum limitation of the flow temperature,
heat converter....................................................... 54
maximum limitation of the flow temperature,
heating circuit........................................................ 56
maximum limitation of the primary return
temperature, d.h.w. circuit .................................... 92
maximum limitation of the primary return
temperature, heating circuit .................................. 92
maximum limitation of the rate of setpoint
increase ................................................................ 51
maximum limitation of the room temperature............ 47
maximum limitation of the secondary return
temperature .......................................................... 93
maximum limitation of the temperature
differential ............................................................. 94
maximum setpoint of the d.h.w. temperature............ 73
M-bus parameters..................................................... 84
mechanical design .................................................. 112
mechanical design of controller .............................. 112
minimum and maximum pump speed ....................... 37
minimum limitation of the flow temperature,
heat converter....................................................... 54
minimum limitation of the flow temperature,
heating circuit........................................................ 57
minimum stroke limitation ......................................... 96
mode of operation of ECO function........................... 47
mode of operation of frost protection for the
building ................................................................. 51
mounting choices .................................................... 112
N
no priority (d.h.w. heating) ........................................ 61
nominal d.h.w. temperature setpoint......................... 31
nominal setpoint........................................................ 28
nonoccupancy time ................................................... 50
O
occupancy time ......................................................... 50
operating elements ......................................... 104, 112
operating instructions.............................................. 105
operating line principle ............................................ 105
operating lines......................................................... 107
operating lines, QAW70 ..........................................101
operating mode buttons ..........................................105
operating modes .......................................................22
operation locking functions........................................98
optimization ...............................................................48
optimum shutdown ....................................................50
optimum start control.................................................50
optimum stop control...........................................48, 50
outside sensor...........................................................24
outside temperature reset ...................................32, 40
outside temperature source ......................................77
overlapping heating periods ......................................29
overlapping holiday periods ......................................33
overriding the operating mode, QAW50… ................99
overriding the operating mode, QAW70..................101
overrun, d.h.w. circuit ................................................61
overrun, heating circuit..............................................47
overrun, pump and mixing circuit ..............................52
P
parallel displacement, heating curve.........................45
parallel operation (d.h.w. heating).............................61
plant type...................................................................35
plant types.................................................................18
plant types with coil type storage tanks.....................63
plant types with stratification storage tanks...............63
power section ..........................................................112
PPS .........................................................................108
PPS parameters........................................................86
priority of d.h.w. heating ............................................59
protection against cooling down................................66
protection against discharging ..................................64
protection against overtemperatures ..........................52
protection against overtemperatures, storage
tank charging ........................................................64
pulse lock ..................................................................80
pulse-width modulated output ...................................36
pump kick ..................................................................52
pump overrun, d.h.w. circuit ......................................61
pump overrun, heating circuit....................................47
pump overrun, pump and mixing circuit ....................52
PWM output ......................................................36, 110
Q
QAW70 operating lines ...........................................101
quick setback ......................................................48, 50
R
radio clock receiver ...................................................89
rail mounting............................................................107
raising the reduced setpoint ......................................96
reduced d.h.w. temperature setpoint.........................31
reduced setpoint........................................................28
reduced setpoint raising ............................................96
