Rotex Controller Series User Manual

EbV Product documentation THETA NORM/UNIT
8-29
8.2.2.5 Heating Circuit Room Frost Protection Limit
Function: This function determines the room setpoint of the corresponding heating circuit
during switch-off mode with frost protection activated.
• during holiday mode
• in automatic mode between the heating cycles with active ECO function.
• in constant reduced mode with active ECO function.
In connection with a room unit the heating circuit is controlled according to the room
frost protection temperature.
Without a room unit the setting serves a default value for the reduced room
temperature and is controlled on the basis of the latter.
Note: With lasting frost protection mode and sensitive objects in the house like antiques,
plants, etc. the setting value is to be duly adjusted.
8.2.2.6 Room Thermostat Function (Room Temperature Maximum Limit)
Function: This function determines a room temperature-related limit with adjustable switching
differential. If the room temperature of the relevant heating circuit exceeds the
current daytime or reduced room setpoint by the set switching differential, the heating
mode is temporarily stopped (heating circuit pump switched off).
The heating mode is resumed if the room temperature of the relevant heating circuit
drops below the current room setpoint – 0,5K.
Example: Day room setpoint = 22 °C setting thermostat function = 4K
Interruption of heating operation: T
Room
> (22°C + 4K) > 26.0°C
Restart of heating operation: T
Room
< (26°C -0.5K) < 25.5°C
With setting OFF summer thermostat function is not in effect.
NOTE: The thermostat function is operative both in heating and reduced mode.
With active frost protection the thermostat function is not operative.
Operation:
Note on operation Key / parameter tree Parameter
Activation room function UNMIXED CIRCUIT
or
MIX. VALVE-1
or
MIX. VALVE-2
(HC / MC-1 / MC-2)
PARAMETER 03
Setting room factor HC / MC-1 / MC-2 PARAMETER 04
Activation room controller HC / MC-1 / MC-2 PARAMETER 04
Setting room frost protection limit HC / MC-1 / MC-2 PARAMETER 08
Setting room thermostat function HC / MC-1 / MC-2 PARAMETER 09

Rotex Controller Series Specifications

General

Brand	Rotex
Model	Controller Series
Category	Controller
Language	English