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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Description of end-user settings 26.03.2001
3.2 Operating mode of d.h.w. heating
Selection of d.h.w. heating mode independent of heating operation.
Selection is made directly on the user interface
.
D.h.w. heating is selected by pressing the respective button on the controller's user
interface.
By pressing the respective button, d.h.w. heating is switched on or off.
• D.h.w. heating OFF - button dark.
D.h.w. is not being heated. Frost protection remains active, however, and prevents
the storage tank temperature from falling below a certain level
• D.h.w. heating ON - button illuminated.
The d.h.w. is heated according to the settings made
The following settings affect d.h.w. heating and must be checked to ensure proper
functioning:
Setting Setting
• Time switch program 3 19-25
• Nominal setpoint of d.h.w. temperature 26
• Summer / winter changeover HC1 and HC2 (when using an
electric immersion heater)
29, 31
• Assignment of d.h.w. heating 123
• Reduced setpoint of the d.h.w. temperature 120
• D.h.w. heating program 121
• D.h.w. heating 124
• Type of d.h.w. demand 125
Benefits
Setting
Effect
Required settings
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