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SDC / DHC Abbreviations
EN2H-0221GE51 R0808 21
4 Abbreviations
The following abbreviations are used in this documentation/in the
display of the control device:
RED
Lowering operation
BS 2
Buffer sensor 2 (bottom)
OS
Outside sensor
BLP
Buffer loading pump
OS2
Outside sensor 2
RBP
Return bypass pump
FGS
Flue gas sensor
RP
Return pump
OT
Outside temperature
SD I
Switching differential I
BUS
System data bus
SD II
Switching differential II
OC1
Burner stage 1 operating hour
counter
TS
Tank sensor
OC2
Burner stage 2 operating hour
counter
TLP
Tank loading pump
DC
Direct heating circuit
SLS
Solar loading switch-over
DCP
Direct heating circuit pump
SLSS
Solar loading switch-over sensor
ECO
Switch-off operation
SFD
Solar forced dissipation
EHR
Electric heating rod
SLP
Solar loading pump
SFB
Solid fuel boiler sensor
STL
Stratified tank loading pump
SFR
Solid fuel buffer sensor
VO
Variable output (general)
FC
Fixed-value control
VO1
Variable output 1
SFP
Solid fuel pump
VO2
Variable output 2
PI
Pulse input
VI
Variable input (general)
BP
Boiler circuit pump
VI1
Variable input 1
CC
Constant control
VI2
Variable input 2
CRS
Collector return sensor
VI3
Variable input 3
CTBS
Collector tank/buffer sensor
FM1
Flow sensor of mixed heating
circuit 1
CFS
Collector flow sensor
FM2
Flow sensor of mixed heating
circuit 2
MM
Mixer motor
PHE
Parallel heat generator enable
MC
Mixed heating circuit
HG
Heat generator
MHP
Mixed heating circuit pump
HGS
Heat generator sensor
P1
Switching time program
WD
Wall device for room temperature
sensing
P2
Switching time program
HW
Hot water
P3
Switching time program
CIR
Circulation pump
BS
Buffer sensor (top)
CHP
Charging pump