Messages – Universal Automatic Burner (UBA)
1
Subject to modifications resulting from technical improvements!
Buderus Ltd. • http://www.buderus-domestic.co.uk
Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
5
1.4
Operating messages
Table 1
Displayed UBA operating messages
Display
Display after
pressing the
service button
Meaning
0
600 Series 11S / 19S / 24S / 24C is ready for operation
A
Burner interval circuit, 10 min from burner start-up
C
Waiting for the three-way valve and/or pump to switch
H
Standby activated, 600 Series 11S / 19S / 24S / 24C ready to provide heat or hot water
L
Initial safety period: self-testing of UBA during burner start-up
U
Post- or pre-flushing period of fan unit
y
Flow temperature at adjustment setting
-.
600 Series 11S / 19S / 24S / 24C running in heating mode
A
“Chimney-sweep” mode, flow-temperature controller bypassed,
600 Series 11S / 19S / 24S / 24C heating to previously-entered flow temperature
H
Normal heating mode
y
Service mode
=.
600 Series 11S / 19S / 24S / 24C running in hot-water mode
H
Normal hot water mode
r
Reset
