Automatic D.h.w. Push - Siemens SIGMAGYR RVP540 Basic Documentation

Benefit
Description
Setting
Effect
Process
Example
Siemens Building Technologies
HVAC Products

4.232 Automatic d.h.w. push

• Availability of d.h.w. is also ensured during non-occupancy times.
If, due to unexpected demand, the d.h.w. storage tank is emptied, the d.h.w. push pro-
vides one-time charging of the storage tank until the nominal d.h.w. temperature set-
point is reached. The automatic d.h.w. push can be activated or deactivated.
Setting range
0 / 1
Entry:
0 Automatic d.h.w. push is inactive
1 Automatic d.h.w. push is active
The d.h.w. push is triggered as soon as the actual d.h.w. temperature falls below the
reduced d.h.w. setpoint (operating line 770) by an amount exceeding twice the switch-
ing differential (operating line 751
TBWx < TBWR - 2 SDBW
When the d.h.w. push is triggered, the storage tank is charged once until the nominal
d.h.w. temperature setpoint (operating line 26) is reached.
Then, normal operation according to the d.h.w. heating program is resumed.
TBWw
SDBW
TBWR
TBWw
TBWR
SDBW D.h.w. switching differential (operating line 751
TBWw Nominal d.h.w. temperature setpoint (operating line 26)
TBWR Reduced d.h.w. temperature setpoint (operating line 770)
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
–
).
EXP
TBWx
Push
)
EXP
Factory setting
0
SDBW
·
2 SDBW
t
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CE1P2488en
18.10.2002