Siemens RVA63.280 - Page 37

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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division 19.04.2001
The selected operating mode is indicated by illuminated buttons. A number of functions
can cause the displayed selection to change. The following table shows the possible
statuses. The following table shows the possible statuses:
Function Effect on button and meaning
Heat generation lock
line 170 = 3 or 174 = 2
• Selected HC operating mode button flashes when
contact H1 or H2 is closed
• D.h.w. operating mode button flashes when switched
on
Changeover of operating
mode
line 170 = 0
• HC operating mode
button flashes when contact
H1 is closed
• D.h.w. operating mode button flashes when switched
on
Changeover of operating
mode
line 170 = 1
• Selected HC operating mode button flashes when
contact H1 is closed
• D.h.w. operating mode button will not be affected
Changeover of operating
mode HC1
line 170 = 5 or
line 174 = 3
• Operating mode HC1 flashes when contact H1 or H2 is
closed
• D.h.w. operating mode button will not be affected
Changeover of operating
mode HC2
line 170 = 6 or
line 174 = 4
• Operating mode HC2 flashes when contact H1 or H2 is
closed
• D.h.w. operating mode button will not be affected
Minimum setpoint of flow
temperature
line 170 = 2 or 174 = 1
• Selected HC operating mode button flashes when
contact H1 or H2 is closed
• D.h.w. operating mode button will not be affected
Heat demand DC 0…10 V
line 170 = 4
• Selected HC operating mode button flashes when H1
demand is valid
• D.h.w. operating mode button will not be affected
Central stand-by switch
line 147 = 1
• HC operating mode
flashes
• D.h.w. operating mode button will not be affected
Settings on the room unit
Occupancy button • HC operating mode
flashes when occupancy
button is active.
• D.h.w. operating mode button will not be affected
Holiday function • HC operating mode flashes when holiday
function is active
• Depending on the setting made on line 123, the d.h.w.
operating mode button flashes when switched on
Changeover of the operating mode on the room unit is active only when the controller is
in automatic mode
.
The room temperature is transmitted to the controller via PPS, independent of the
selected operating mode.
Illuminated buttons
Settings on the
controller
Effect of room unit