Honeywell EN2H-0221GE51 R0808 service manual Abbreviations

SDC / DHC Abbreviations

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	TS	Tank sensor
	counter
OC2	Burner stage 2 operating hour	TLP	Tank loading pump
	counter
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

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