Siemens RVS41.813 - Energy Brought in; Fixed Day Storage (Yearly Performance Factor)

Delivered heat is not counted for cooling operation for room cooling and defrost
operation.
The counter value displays
"---" if no counter function (pulse or volume calculation) is
entered.
The counter can be set to z
ero with the appropriate access rights via operation and via
the ACS service tool to any value.
Reset or description of counter result in a fixed day entry.
Line no. Operating line
3113 Energy brought in
Energy broug
ht in
The energy increase determined using the pulse counter (electrical or natural gas) and
the calculated energy increase for the source operation are added every minute to the
counter
Employed energy.
Employed energy =
Energy source operation (calculated) + energy electrical or natural gas
(counted)
Internal to the controller, employed energy for heating and DHW are recorded
separately, but only the total value is displayed. . They are, however, listed separately
in the fixed day storage (Par. 3120-3188)
No employed
energy is counted for active or passive cooling for room cooling.
Conversely, energy employed for the air heat pumps for defrost operation is counted.
The counter value displays "---" if no counter function (pulse or calculated source
operation) is entered.
The counter can be set to z
ero with the appropriate access rights via operation and via
the ACS service tool to any value.
Reset or description of counter result in a fixed day entry.
Line no. Operating line
3116 Performance factor
Performance facto
r
The performance factor is calculated from the two counters for delivered (Par 3110)
and employed (Par 3113) energy:
Performance factor = Delivered heat / employed energy
The performa
nce factor displays the value "---" if one of the to energy counters is
unused (no counter function is set) and also displays "---".
Fixed day storage (yearly performance factor)
The fixed day storage retains the total counter values on the set date and calculates the
yearly performance factor from the total for the past period. The present, absolute
counter values are stored when the fixed date arrives. You can then calculate and
display the various values for the individual fixed day entries.
The fixed day function automatically calculates and store annually and over the same
occupancy period the yearly performance factor.
The underlying, annual energy values are stored – separately for heating and DHW
heating – for any consumption or plant analysis.
145/258
Siemens Switzerland Ltd User manual RVS61.843, RVS41.813 CE1U2355en_02
HVAC Products 6 The settings in detail 28. September 2009