Heating System (Exponent); Heating Circuit Temperature Limitation - Rotex Controller Series Product Documentation

EbV
8.2.1.3

Heating system (exponent)

Function: This parameter refers to the type of heating system (floor, radiator, convector
heating) and can be compared to the exponent of the relevant heat exchanger. The
setting determines the curvature of the heating characteristic of the direct heating
circuit and compensates the performance losses at low temperatures by means of
its progressive characteristic.
Depending on the type of heating system the following settings are recommended:
1.10
1.30
2.00
3.00 - 5.00 Very progressive heating characteristic curves for general ventilator
Operation:
8.2.1.4

Heating Circuit Temperature Limitation

NOTE: This function is not active if the heating circuit control is set at constant control (CC).
Function: This function limits the flow temperature of a heating circuit. The minimum and
maximum temperatures set in the relevant parameters of a heating circuit must not
exceed or fall below the setpoints.
Minimum temperature limitation is not active:
•
•
•
•
Application: - Floor minimum limitation
- Ventilation pre-adjustment (warm air curtain)
- Convector heating
8-22
Slightly progressive heating characteristic for floor or other panel
heating systems.
Progressive standard characteristic for all radiator heating systems with
m-values comprised between 1.25 and 1.35.
Progressive heating characteristic for convector and baseboard heating
systems
application with high start temperatures.
Note on operation
Setting heating system
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 constant reduced mode with activated ECO function
in case of automatic summer switch-off
Product documentation THETA NORM/UNIT
Key / parameter tree
UNMIXED CIRCUIT
or
MIX. VALVE-1
or
MIX. VALVE-2
Parameter
HEATING SYSTEM