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MCA 35
Installer level - Menu #SECONDARY INSTAL.P
Parameter
LEG PROTEC
(7)
START.TIM.LEG.P
DURAT.LEG.PROTECT
7)
(5)
OPTIM. DHW
(5)
ON.DHW
(1) The parameter is only displayed if INSTALLATION is set to EXTENDED
(2) The parameter can be set to the heating curve by pressing key f
(3) The parameter is only displayed if SCREED DRYING is other than OFF
(4) The parameter is only displayed if IN 0-10V is set to ON.
(5) The parameter is only displayed if P.DHW is set to PUMP
(6) If a reversal valve is connected, DHW priority will always be total regardless of the setting.
(7) The parameter is only displayed if LEG PROTEC is other than OFF
15/06/12 - 300022160-001-01
Adjustment range
OFF
DAILY
WEEKLY
00:00 to 23:30
60 to 360 min
(
OFF
BOILER. T.
SYST.TEMP
OFF
BOILER. T.
SYST.TEMP
Description
The anti legionella function acts to
prevent the development of legionella in
the dhw tank, these bacteria are
responsible for legionellosis.
Anti-legionella function not activated
The tank is overheated every day from
4:00 o'clock to 5:00 o'clock
The tank is overheated every Saturday
from 4:00 o'clock to 5:00 o'clock
Antilegionella start-up time
Antilegionella running time
The function is deactivated
When, in heating mode, the boiler
temperature exceeds
PRIM.TEMP.DHW by +3°C and DHW
tank needs are not met, the domestic hot
water pump starts up
When, in heating mode, the system
temperature exceeds
PRIM.TEMP.DHW by +3°C and DHW
tank needs are not met, the domestic hot
water pump starts up
The function is deactivated
In DHW mode, the DHW load pump
starts up only if the boiler temperature is
higher than the WATER TEMP. set point
+ 5°C
In DHW mode, the DHW load pump
starts up only if the system temperature
is higher than the WATER TEMP. set
point + 5°C
n MAX.CIRC...
WARNING
If using underfloor heating, do not modify the factory
setting (50 °C). To install this, please consult existing
legislation.
4 In the case of a direct circuit, connect a safety thermostat to the
BL contact.
4 In the case of a 3-way valve circuit (B or C), connect a safety
thermostat to the TS contact.
5. Commissioning
Factory
Customer
setting
setting
OFF
4:00 h
(Increment: 30
minutes)
60 minutes
(Increment: 30
minutes)
OFF
OFF
85
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