Structure Diagram "Function - Buderus Logamax plus GB142-24 Servicing Instructions

5.2

Structure diagram "Function"

1
Start up
Connect the heating system to the power grid
by turning the circuit breaker ON.
Turn the main switch on the BC10 to
position "1" (ON), see page 8, fig. 2.
The LED of the UBA 3 lights for 1 second.
This means that the UBA 3 is reading the
KIM. If a new KIM or UBA 3 has been
installed, the LED will flash at a high
frequency for max. 10 sec. while data is being
exchanged.
8 8
.
A display check is carried out
(for max. 1 second).
Flashes twice for 2 seconds until
communication between the UBA 3 and the
BC10 has been established.
7
Current supply temperature 0 ... 199 °F
(-18 ... 93 °C). See page 20.
Press the "Service" button.
P 2
Current heating system pressure.
See page 20.
Press the "Service" button.
Logamax plus GB142-24/30/45/60 - We reserve the right to make any changes due to technical modifications!
8
. .
2
9
psi
0 U
Operating code.
The heating boiler is started.
Start of air-side pre-flushing phase.
The blower runs for < 20 seconds at
approx. 60 % of the maximum speed.
Is the
air purging phase
okay?
yes
2
page 16
Function
Unit will show an error code.
Fault must be fixed before
no
proceeding.
See chapter 6, 7 and 7.2.
5
15