Description Of The Service Functions; First Service Level; Service Function; Pump Mode - Bosch ZBR16-3A Installation And Service Instructions Manual

10.3 Description of the service functions

10.3.1 First service level

Service function 1.A: Maximum space heating output
Some gas supply companies offer a performance-
dependent basic price.
The output can be limited in percent between the
minimum and maximum nominal output to suit the specific
heat demand.
Even if the heating output has been limited,
the maximum nominal output is still available
for DHW generation.
B Select service function 1.A.
B Select heat output in MBH (kW) and determine
associated setting in percent (%).
B Enter the setting ( 10.1).
B Save the setting ( 10.1).
B Record the set heat output in the commissioning log
( page 97).
B Exit the service functions.
The display returns to the supply temperature.
Default setting is the maximum nominal output: U0
(100 %).
Service function 1.b: Maximum DHW output
The hot water output can be adjusted between the
minimum and maximum DHW outputs to suit the heat
transfer capacity of the DHW tank coil.
B Select service function 1.b.
B Select the DHW output in MBH (kW) and determine the
associated setting in percent (%).
B Enter the setting ( 10.1).
B Save the setting ( 10.1).
B Record the set DHW output in the commissioning log
( page 97).
B Exit the service functions.
The display returns to the supply temperature.
Default setting is the maximum nominal output: U0
(100 %).
Copyright (optional information)
Heatronic boiler control settings | 67
Service function 1.E: Pump mode for space heating
operation
If an outdoor temperature sensor for an
outdoor reset control is connected, pump
control mode 04 is automatically set.
• Pump control mode 00 (automatic mode): The BUS
control controls the central heating pump.
• Pump control mode 01: For heating systems without
control.
The supply temperature controls the central heating
pump. When there is a demand for heat, the central
heating pump and the burner start up.
• Pump control mode 02: Do not use.
• Pump control mode 03: The central heating pump runs
continuously (exceptions: See heating control
operating instructions).
• Pump control mode 04: Intelligent control of central
heating pump in heating systems with outdoor reset
control. The heating zone pump is only switched on
when needed.
Default setting is 00.
Service function 1. F: Pump mode (only heating boiler
ZBR..-3A)
NOTICE: System damage or boiler
malfunction!
B Never change the setting of this service
function on combi boiler ZWB..-3A
appliances.
Based on this setting, the pump connected to the
Heatronic or 3-way valve are controlled according to the
configuration of the heating system.
The following settings are possible:
• Pump mode 00: The appliance is used only as central
heating boiler.
• Pump mode 01: A 3-way valve for DHW tank loading is
connected in boiler circuit before low loss header (see
also service function 2.A).
• Pump mode 02: Do not use this setting!
• Pump mode 03: A DHW tank pump is connected on the
system side after the low loss header.
In DHW mode, DHW tank
In heating mode, DHW tank
space
not run.
Default setting is 03.
pump runs.
loading
pump does
loading
6 720 643 068 (2011/06)