Boiler And Control Components In The Logamatic Ems Control System; Universal Burner Control Unit Uba3.5; Logamatic Bc10 Base Controller - Buderus Logamax plus GB162 Technical Manual

4 Heating control
4.4

Boiler and control components in the Logamatic EMS control system

4.4.1

Universal burner control unit UBA3.5

The digital universal burner control unit UBA3.5 is
integrated into the gas condensing boiler and has no
independent displays or controls. However, it contains
the BCM burner control module that delivers the
boiler-specific technical combustion information and
includes an LED that signals the standby condition.
As the central intelligence of the control system, it
monitors all electrical and electronic components of the
gas condensing boiler and matches all boiler components
perfectly to each other.
Control functions of the UBA3.5 as part of the
overall system
• Monitoring and control of all combustion process
functions
• Control of the boiler water temperature to a value
required by the connected components
• Control of DHW heating with thermal disinfection and
control of a DHW circulation pump
– This function is enabled via the Logamatic BC10
base controller or via the RC25 or RC35
programming unit.
– In conjunction with the RC35 programming unit, an
individual time function for DHW heating is feasible.
– In connection with a 3-way diverter valve, DHW
heating generally takes priority over heating mode.
4.4.2

Logamatic BC10 base controller

The Logamatic BC10 base controller functions as a
standard programming unit for most heat sources
equipped with the Logamatic EMS control system. It is
therefore part of the standard equipment of the Logamax
plus GB162 gas condensing boilers.
The Logamatic BC10 contains all elements required for
the standard operation of the heating system with a
Logamatic EMS. In addition, the Logamatic BC10 base
controller offers a slot for the RC35 programming unit,
which makes further convenient control functions
available ( fig. 23, pos. 2).
34
1
Fig. 23 Logamatic BC10 base controller with
clipped-in RC35 programming unit
1 Logamatic BC10 base controller (
2 RC35 programming unit (
At the back of the Logamatic BC10 base controller, the
output of the gas condensing boiler can be limited to
11 kW or 50 kW (for the GB162-65) by removing a
jumper ( fig. 24, pos. 3). In the delivered condition, the
jumper is plugged in; i.e. the boiler output is not especially
limited.
Fig. 24 Back of the Logamatic BC10 base controller
with jumper for limiting the output to 11 kW or
50 kW (for the GB162-65)
1 Jumper
6 720 645 821 (2010/09) – Logamax plus GB162
2
6 720 642 463-22.1il
page 35)
page 37)
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1
6 720 642 463-23.1il