Commissioning; Making The Heating System Operational; Commissioning The Control Unit And Burner; Shutdown - Bosch Uni Condens 8000 F Operating Instructions Manual

Commissioning

4 Commissioning
NOTICE:
Risk of boiler damage through contaminated combustion air!
▶ Never operate the boiler in very dusty conditions, e.g. if building work
is taking place at the installation location.
▶ Ensure adequate ventilation.
▶ Never use or store chlorinated cleaning agents or halogenated
hydrocarbons (as contained in spray cans, solvents or cleaning
agents, paints and adhesives, for example) at the installation
location.
▶ A burner contaminated during building work must be cleaned before
commissioning.
▶ Ask your contractor to provide information about how the boiler
works and is operated.
▶ Never undertake any modifications or maintenance.
4.1

Making the heating system operational

For you to be able to commission the heating system, observe the
following:
Open the automatic air vent valve only briefly for venting.
▶ Check that the required operating pressure has been established
( chapter 6.3, page 8).
▶ Check the flange connections and other connections for tightness.
▶ Fill the condensate siphon.
▶ Open the fuel supply to the main fuel shut-off valve.
▶ Switch on the heating system emergency stop switch.
4.2

Commissioning the control unit and burner

When commissioning the control unit, specific commissioning
parameters are set for the burner. The burner can then be started by the
control unit. For further information, refer to the operating instructions
of the relevant control unit or burner.
▶ Use the control unit to commission the boiler.
▶ Observe operating instructions of the control system and burner.
5

Shutdown

NOTICE:
Risk of damage to the system from frost!
When there is a frost, the heating system can freeze up if it is not
operational, (e.g. switched off, mains failure or fault shutdown)!
▶ Check the "Control unit settings" function to ensure the heating
system remains operational.
▶ When there is a risk of frost, protect your heating system against
freezing up.
▶ If your heating system has been shut down for several days, e.g. due
to a fault shutdown, and there is a risk of frost:
drain the heating water at the DFV. Also leave the air vent at the
highest point in the heating system open.
8
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5.1
The heating system is shut down via the control unit. The burner is also
automatically shut down.
▶ Switch off the burner at the control unit.
5.2
Only switch off the heating system in emergencies via the boiler room
disconnector or the heating system emergency stop switch.
▶ Never put your life at risk. Your own safety is paramount.
▶ In dangerous situations, immediately close the main fuel shut-off
▶ Isolate the fuel supply to the heating system.
6
6.1
NOTICE:
System damage due to inadequate cleaning and maintenance!
▶ Carry out cleaning and maintenance at least once a year. In the course
▶ Immediately correct all faults to prevent system damage.
Annual inspection and service are part of the warranty terms.
▶ Conclude an annual inspection and responsive maintenance and
What makes regular maintenance important?
Heating systems should be regularly maintained for the following
reasons:
• To achieve a high level of efficiency
• To operate the heating system economically with low fuel
• To achieve a high level of operational reliability
• To maintain the cleanest possible combustion
6.2
▶ Wipe down the boiler casing with a damp cloth.
▶ Never use aggressive or corrosive cleaning agents.
6.3
Operation without a sufficient volume of water is not permitted.
▶ Only operate the system when it contains a sufficient volume of water
If the operating pressure in the heating system is too low.
▶ Fill the heating system with top-up water.
For the water quality:
▶ Note the information specified in the operator's log.
▶ Check the operating pressure once a month.

Shutting down the heating system.

Shutting down the heating system in an emergency

valve and the power supply of the heating system via the boiler room
main MCB/fuse or the heating system emergency stop switch.

Inspection and maintenance

General notes

of this work, check the entire heating system including the
neutralising system for correct function.
inspection contract with your contractor.
consumption

Clean boiler casing

Check and correct the operating pressure

(operating pressure).
Uni Condens 8000 F – 6720867069 (2016/10)