Automatic Adjustment; Connecting (Pairing) / Separating Base Stations - Moehlenhoff BSF 20102-04 Manuel D'instructions

a more continuous flow of the heating medium. The distribution is performed in regular timely
intervals (pulse width modulation cycles (PWM cycles)) per heating zone, or heating zones per
thermostat.
In case of a change of the control parameters, the system performs a recalculation of the load
compensation in each case. The actuators connected to the respective heating zones regulate per
PWM cycle in different timely intervals in the scope of this cycle.
The load compensation cycle is firmly integrated into the Alpha 2 system and cannot be deacti-
vated, neither by a parameter nor by any kind of operation.
Note:
Due to the optimization of a PWM cycle during the load compensation, the actuators installed in
the system open and close at different times. This is also true if several heating zones are logged on
to a room control unit.

4.2.1 Automatic adjustment

Duo to the controller characteristics, the system ensures automatic flow rate adjustment in the con-
nected circuits. A prerequisite for this is that the technical conditions (including flow temperature,
pump pressure, pipe installation, valve settings) allow a correct heating of all rooms.
In heating systems with strong deviations from these requirements, system-supporting measures
can be implemented:
DEU
¾ Gradually increase the flow rate via the presettable valve / screwed return connection of
ENG
problematic area.
FRA ¾ If the valve to this room is already set to full flow, gradually throttle the valves of the other
rooms.
NDL
¾ If the first two measures are not sufficient, increase the pump pressure at the heating circuit
circulating pump.
ITA
¾ As a last measure, increase the flow temperature of the heating circuits.
ESP

4.3 Connecting (pairing) / separating base stations

If several base stations are used in one heating system, a maxi-
mum of seven units can be coupled (paired) for the exchange of
global system parameters via radio or system bus (syBUS). The
radio range of the base station must be observed for the radio
connection. If the radio range is insufficient, pairing must be
performed with the syBUS. Communication is done according
to the master/slave principle. Requirements and status messages
are exchanged between the units. The master unit centrally
controls the directly connected functions/components:
• CO input/output
(if the pilot function is activated)
• Boiler output
• Pump output
• Time
38
Slave
1
2
Slave
3
4
5
6
7
Master