REMEHA Celcia MC4, Инструкция по установке и эксплуатации

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Remeha Celcia MC4
LT.AL.REM.000.022 LT.AL.REM.000.023
LT.AL.REM.000.024 LT.AL.REM.000.025
LT.AL.REM.000.026 LT.AL.REM.000.027
2.3.3 Putting regulator into working order
This section details the procedure for putting the regulator into
working order. What to do:
•
Leave the regulator unplugged.
•
Remove the small cover.
•
Check that all the connections, including earth connec-
tions, have been made correctly.
•
Remove the large cover.
•
Switch all system components on.
•
Insert the Celcia MC4 plug in the socket.
•
Press the ’autoconfig’ key until all LEDs flash quickly; all
installation components are detected.
•
The configuration will be stored in the regulator memory
within 10 seconds.
•
Now the status LED will stay on (unless there is a fault)
and the Celcia MC4 is ready for operation.
2.3.4 Checking the working of the Celcia MC4
The working of the regulator can be checked by connecting
the OpenTherm connection to terminals 1 and 2. The Celcia
MC4 will control the boilers at minimum load. After 1 minute,
all boilers will simultaneously be set to full load for 10 minutes.
The system flow temperature can then rise to the maximum
flow temperature of the boilers connected.
2.4 Normal start-up procedure
The Celcia MC4 receives the required flow temperature from
the OpenTherm thermostat and calculates the required capac-
ity on the basis of the difference between the measured and
the required flow temperatures. The Celcia MC4 distributes
this capacity over the connected boilers, according to a set
switching method.
If an outdoor sensor (Ba) is connected the Celcia MC4 will
transmit the outside temperature to the connected OpenTherm
thermostat, enabling weather-dependent control. The Celcia
MC4 has no internal heat curve.

If the Celcia 20 regulator is being used as a weather-dependent
regulator, the outdoor sensor (Ba) is connected to terminals 13
and 14 of the Celcia MC4.
2.4.1 Adjusting the regulator according to the system
The Celcia MC4 can be adjusted to a new system, literally ‘at
the touch of a button’. If the current system has been config-
ured with three boilers and is to be extended with a fourth,
complete the hydraulic and electrical connections and then
press the
‘autoconfig’ button for about 3 seconds. The regu-
lator will now distribute the required output over four boilers
instead of three.