17
230 V
59970LGBW7H011a
LTALW7H000023a
2.6 Electrical connection
•
Connect the boiler to the fused (3 amp) switch spur unit
adjacent to the boiler.
•
The switch unit must always be accessible.
When the switch spur is on the following components of this
appliance can be live (230 V):
•
electrical connection gas combination block;
•
most parts of the control unit;
•
ignition transformer;
•
X1, X2, X4, X5, X6 and X7 terminal strip;
•
230 V supply cable connection.
59970LTGBW7H011
LTALW7H000023
2.6.1 The control unit
The Remeha Avanta 18v has an electronic regulation and con-
trol unit with an integrated ionisation flame detector. The heart
of the boiler control unit is a microprocessor, the
‘abc
®’
, which
controls and protects the boiler.
The maximum rated input of the boiler is 130 W. The boiler is
fully pre-wired internally, all external connections can be made
using the terminal strips X5 - X7 - X9 and 230 V input (X2 ter-
minal). See the diagram for the position of the connectors and
fuse (F2) on the control unit.
The most important properties of the control unit are summa-
rized in
table 03.
Manufacturer
Sit Controls
Supply voltage
230 V – 1ph – 50 Hz
Pre-purge time
3 s
Post-purge time
5 s
Ignition time
2.5 s
Safety time
5 s
Anti-cycling time
3 till 10 min.
Fuse value F1 (230 V)
2 AT
DC fan
24 VDC
table 03 Control unit characteristics
Any loads other than those specified above are only allowed if
an isolating transformer is used.
