Honeywell SDC - Manual (Page 58)

Operation SDC / DHC
58 EN2H-0220GE51 R0308
ECO (switch-off operation)
During reduced operation, the direct heating circuit is switched off
completely with outside temperatures above the set frost-
protection limit. The maximum heat generator temperature is not
functional. The heating circuit pump is switched off after a delay to
avoid safety deactivation by reheating the heat generator (pump
follow-up).
If the outside temperature is or becomes lower than the specified
outside temperature frost-protection limit, the controller switches
from deactivated (deactivation mode) to lowered lowering
operation and controls the heating circuit temperature based on
the set lowering curve taking the set minimum heat generator
specification into account.
Building with high insulation values (full heating protection).
The mode set here also applies for the ABSENT and RED.
HEATING operating modes.
Pos: 57 /156-Honeywell/Bedienung/Heizsystem @ 1\mod_1207647329666_6.doc @ 10005 4.2.5.2 Heating system
This parameter refers to the type of the heating system (floor,
radiator or convector heating) and can be matched to the
exponent of the respective heat distributor. Using its progressive
characteristics, the set value determines the curve characteristics
of the heating curve of the direct heating circuit and compensates
for the losses in output in the low-temperature range with it.
The following settings are recommend depending on the type of
heating system:
1,1 Slightly progressive heating curves for floor or other
area heating.
1,3 Progressive standard heating curves for all radiator
heating with m-values between 1.25 and 1.35.
2 Progressive heating curves for convector and
baseboard heating.
>3 Heavily progressive heating curves for general ventilator
applications with high starting temperatures.
Application
NOTE