Module Programming; Initialisation; Confi Guring The Module Using The System Interface; Expert Control - CHAFFOTEAUX MCD IV Instrucciones De Instalación Y El Uso

Module programming

The are two options:
Scenario no. 1: the boiler includes a BUS connection; confi gura-
tions are made from the boiler or from an the system interface Expert
Control (option).
Scenario no. 2: the module is independent, and the zones are confi -
gured from the system interface Expert Control supplied as an option.

Initialisation

Before starting the procedure, check that all the circuits have water
and that the purge was carried out correctly.
Once all equipment is connected, the system recognises the equip-
ment and carries out automatic initialisation.
Confi guring the module
using the system interface Expert Contro
key
1) Switch on the display by pressing the OK key. The screen is activa-
ted.
2) Press and hold the and OK keys on the system interface
Expert Control simultaneously for 5 seconds.
3) Using the "encoder" button, display code 234 then confi rm with
the OK key.
4) Turn the button clockwise to access the MENU option then con-
fi rm with the OK key.
5) Look for menu 7 "Multizone Module" using the "enco-
der" button then confi rm with the OK key. Select sub-menu
72 "Multizone" then confi rm with the OK key. Select para-
meter 720 then confi rm with the OK key and select MCD
parameter 1 then confi rm with the OK key.
Confi guring the module from the boiler
1) Press the menu/ok key. When CODE
is displayed, press menu/ok; code
222 will appear.
2) Turn the "encoder" button to the
right then display code 234 and
confi rm with the menu/ok key.
3) MENU appears on the screen;
confi rm then select menu 7 and
confi rm with the menu/ok key.
4) Select sub-menu 72 and confi rm
with the menu/ok key.
5) Select sub-menu 720 and confi rm
with the menu/ok key.
6) Select parameter 1 and confi rm with
the menu/ok key (see Menu 720 in
the settings table).
9) Press the esc key repeatedly to return to the boiler display.
OK key
OK
Encoder
Encoder
R
on/off reset
esc menu/ok
mode sra comfort
esc menu/ok
key
key
Preparing the boiler for operation

Air bleeding

The module's automatic air bleed function is only activated from the
boiler if there is a BUS connection (scenario no. 1).
The air bleed function is activated by pressing and holding the esc
key on the boiler for 5 seconds or by activating parameter 7 0 1.
With the bleed function activated, the module performs an ON/OFF
cycle of the Zone 1 circulating pump, the mixing valve and the gate
valve (option). This causes the air in the circuit to start circulating. You
can activate a new cycle if necessary.

Frost protection function

If the fl ow sensor records a temperature lower than 5°C, the frost
protection function is activated. If the frost protection function
is activated, the module opens the Zone 1 gate valve (option) and
starts the Zone 2 circulating pump. This allows frost protection to be
extended to zones 1 and 2.

Anti-jamming function

After every 24 hours of inactivity, an anti-jamming cycle is performed
on the circulating pump and the mixing valve.
GB
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