Honeywell EN2H-0221GE51 R0808 service manual Plp

Hydraulic Components SDC / DHC

Heating circuit controls send their demand value to buffer control. Hot-water and buffer controls demand energy from the heat generator when required.

With hot-water priority activated, this function acts on the buffer loading pump and not on the heating circuits.

See the table below for detailed correlations.

Control mode 3 – Discharge control for heating circuit and hot- water demand

SystemAFhydraulics

PF	BR1	KF
	a	b

aBuffer tank

bHeat generator

DKP	VF1MK1	VF2MK2
PLP			SLP

c Hot-water tank

c

SF

Heating circuit and hot-water controls send their demand value to buffer control. The buffer loading pump output switches ON when the energy demand can be met by the buffer. If the energy in the buffer is insufficient, buffer control demands additional energy from the heat generator and the buffer loading pump switches OFF.

If there is no demand for the heating circuits and hot-water loading, the buffer loading pump switches off.

See the table below for detailed correlations.

202 EN2H-0221GE51 R0808