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00BNO9168-I (U0606551)
VARMAX -
Installation, Use and Maintenance
AVS75
QX21
N
QX22
N
QX23
BX21
Gnd
BX22
Gnd
H2
Gnd
}
}
}
}
Module 1
Flow sensor for regulated circuit
B1.2
Mixing valve for heating
circuit No. 4 Y1.2/Y2.2
Circulator for heating circuit
No. 4 Q2.2
(for heating circuit shown in dots on
the hydraulic diagrams)
D. SPECIFIC START-UP PROCEDURE
"
Fit the accessories and make their electrical connections.
"
Start up the boiler alone.
"
Make the following settings.
WARNING:
Ensure the switches on the extension modules AVS75 are properly
configured.
L
N L3
N
L3 L
N
QX2
QX3
QX1
Mains supply 230
VAC 50 Hz
}
}
Alarm
relay
Insulating
valve Q1.2
Diagrams: VX202 / VX212
page 4 / 9
}
LPB bus
MB DB
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