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Hydraulic Components SDC / DHC
164 EN2H-0221GE51 R0808
7.3.1.3 Reduced operation
See 5.2.5.1 Reduced operation, Pg. 79
7.3.1.4 Heating system
See 5.2.5.2 Heating system, Pg. 80
7.3.1.5 Heating circuit temperature limit
This function is not active if the heating circuit control is used as
constant control (CC).
This function limits the flow temperature of a heating circuit. The
minimum and maximum temperatures set in the relevant
parameters of a heating circuit do not exceed or fall below the
setpoints.
Minimum temperature limitation is not active:
• in case of switch-off in standby mode above the frost
protection limit
• in case of switch-off in reduced automatic mode with the
activated ECO function above the frost protection limit
• in case of switch-off in continuously reduced mode with
activated ECO function
• in case of automatic summer switch-off
• Floor minimum limit
• Ventilation pre-adjustment (warm air curtain)
• Convector heating
ATTENTION
To protect the floor heating systems against accidental
overheating (malfunction - manual mode) a controller-
independent maximum temperature limit must be provided.
For this purpose, we recommend a strap-on thermostat, the
switching contact of which is looped through the control
phase of the respective heating circuit pump. The thermostat
is to be set to the maximum permissible system temperature.
5.4.4 "Direct heating circuit" menu (UNMIXED CIRC), Pg. 92
NOTE
Function
Application
See also