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SDC / DHC Hydraulic Components
EN2H-0221GE51 R0808 205
See the table below for detailed correlations:
Buffer control mode
1 2 3 4 5 6
Buffer demand from HC/HW HC HC/HW HC HC –
Heat generator
demand from
BUFFER BUFFER/
HW
BUFFER BUFFER/
HW
BUFFER/
HW
HC/HW
Buffer control mode Load Load Dis-
charge 1
Dis-
charge 1
Load Dis-
charge 2
Buffer start-up
protection acts on
HC/HW HC HC/HW HC HC –
Buffer discharge
protection
X X – – X –
Buffer frost protection
monitoring
X X – – X –
Buffer minimum
temperature monitoring
X X – – X –
Buffer maximum
temperature monitoring
X X X X X X
Buffer forced
dissipation into:
HC/HW HC HC/HW HC HC HC/HW
Buffer siphon function X X* – – X* –
Loading temperature
offset acts from:
HC/HW HC – – HC –
Heat generator start-up
protection on buffer
loading pump
X X – – X –
Buffer loading pump
with no demand
OFF OFF OFF OFF OFF OFF
Buffer loading pump for
manual operation
ON ON OFF OFF ON OFF
Buffer loading pump
function for sensor
defect
ON ON OFF OFF ON OFF
Buffer loading pump
function for heat
generator disable
– – ON ON – –