CODE MODE
ENTERING THE CODE
By entering the code you can access from Parameter 10 to Parameter 113 and consult the communication mode, the fan speed mode and the Error
mode.
Only ACV approved installers know the access code.
For more information, please contact our after-sales service.
To access Code mode, press simultaneously on the MODE and
STEP keys.
(Only in Standby mode!)
MODE
STEP
Press STEP once and the screen indicates “C” in the first position,
then random characters in the third and fourth positions.
STEP
Press “+” or “–” to change the code
+
-
ou
Press the STORE key and the screen flashes briefly to indicate that
the code has been accepted.
STORE
Press the MODE key until the desired mode appears.
MCBA PARAMETERS FOR THE SPECIALIST
SETTING THE PARAMETERS:
only accessible using the code
Factory setting
STEP
Display
Description of the parameters
HM 25 TC
HM 35 TC
HM 70 TC
HM 85 TC
Minimum central heating temperature using outdoor
sensor.
Minimum external temperature [adjustment of the
heating curve].
Maximum external temperature [adjustment of the
heating curve].
Frost protection temperature.
Correction for outside temperature.
Maximum flow temperature of the 2
nd
circuit.
Minimum flow temperature of the 2
nd
circuit.
Hysteresis of the 2
nd
circuit temperature.
T lock:
00
= Disabled
Locks the heat demand, if the heating set-point T° is
lower than the parameter value.
EN • 24
664Y5300 • A
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FR
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