Settings Of The Safety Equipment - Bosch Control 8313 Service Instructions For Contractors

Menu structure
Submenu Settings/adjustment
range
External Heat Detection No/Yes
Maximum shutdown 30...85...99 °C
temperature
Maximum boiler output 0...100 %
Cycle deactivation 0...10...60 min
Negative hysteresis -30...-4...0 K
Positive hysteresis 0...2...15 K
Max. Air Correction -9...0...9
Min. Air Correction -9...0...9
Service display None
After hours
Next maintenance
Burner run time since
last maintenance
Date
Table 8 Boiler characteristics menu
9.3.2

Settings of the safety equipment

Submenu Settings/adjustment
range
FM-SI1...FM-SI5 Free/Allocated
Max. pressure 1
Max. pressure 2
Min-PressWMS
Neutralisation
STB 2 safe.
Table 9 Safety equipment settings
20
Explanation
Once sufficient heat to supply the system has
built up at sensor FZ, the heat source is
prevented from starting. If the system set value is
undercut by 4 K, the heat source is started.
The burner is switched off once the heating flow
temperature reaches the maximum cut-off
temperature at the latest.
Limiting the performance of the heat source
Setting the blocking time between switching off
the heat source and switching it back on
Setting that specifies when the set value is
undercut what the difference in temperature
should be before heat production starts
Setting that specifies when the set value is
exceeded what the difference in temperature
should be before heat production ends
Matching the fan speed
Matching the fan speed
Maintenance according to hours run
(only in control units with direct activation of
heat source)
Setting the number of hours until maintenance is
next due
Number of hours that have elapsed since
maintenance was last carried out.
Service display set according to date: entry of
next maintenance deadline
Explanation
Inputs for fault displays
Selection of a name for the connected safety
equipment or entry of an individual name
Max-pressure1/2 = maximum pressure
limiter 1 or 2
Min-pr.WMS = minimum pressure limiter
or low water indicator
STB2 Safety = 2nd safety temperature limiter
Note
The temperature sensor FZ is in the low loss
header or buffer cylinder.
The maximum possible cut-off temperature is
specified by the SAFe of the connected heat
source.
Change the factory setting only in exceptional
cases. The value can only be reduced.
 Chapter 11.2, page 32
This function is active in heating and DHW
mode.
This function is active in heating and DHW
mode.
The function depends on the heat source.
The function depends on the heat source.
• The service display is recorded in the fault
history can be displayed via the building
services management system.
• The status of the service display can be
requested in the fault history.
• The service display can be reset in the Reset
menu.
Note
Only if a FM-SI is installed. Inputs must be
activated ( Chapter 6.7, page 13 and
chapter 11.3, page 32).
This must be connected to input SI1 when using
a condensate neutraliser.
Unallocated inputs of the safety chain module
must be jumpered.
Control 8313 – 6720859567 (2017/03)