Bosch Uni Condens 8000 F UC8000F Operating Instructions Manual Download Page 8

Commissioning

 

Uni Condens 8000 F – 6720867069 (2016/10)

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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.

5.1

Shutting down the heating system.

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

Shutting down the heating system in an emergency

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 

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

▶ Isolate the fuel supply to the heating system.

6

Inspection and maintenance

6.1

General notes

NOTICE: 

System damage due to inadequate cleaning and maintenance!

▶ Carry out cleaning and maintenance at least once a year. In the course 

of this work, check the entire heating system including the 
neutralising system for correct function.

▶ 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 

inspection contract with your contractor. 

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 

consumption

• To achieve a high level of operational reliability
• To maintain the cleanest possible combustion

6.2

Clean boiler casing

▶ Wipe down the boiler casing with a damp cloth.
▶ Never use aggressive or corrosive cleaning agents.

6.3

Check and correct the operating pressure

Operation without a sufficient volume of water is not permitted.
▶ Only operate the system when it contains a sufficient volume of water 

(operating pressure).

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.

Summary of Contents for Uni Condens 8000 F UC8000F

Page 1: ...6720867069 2016 10 GB IE Operating instructions for users Floor standing condensing boiler Uni Condens 8000 F UC8000F 800 1200 kW ...

Page 2: ...heating controller etc prior to operation Observe the safety instructions and warnings 1 Explanation of symbols and safety instructions 2 1 1 Explanation of symbols 2 1 2 General safety instructions 2 2 Product Information 4 2 1 Declaration of Conformity 4 2 2 Determined use 4 2 3 Symbol at the boiler 4 2 4 Data plate 4 2 5 Product Description 4 2 6 Permissible fuels 5 2 7 Operation conditions 6 2...

Page 3: ...lified person so that risks are avoided H Risk through oil leaks If using oil as fuel country specific regulations hold the operator responsible for asking a contractor to correct any oil leaks the moment they are discovered H If you smell gas Close gas isolation valve Open windows and doors Do not touch any electrical switch telephone and do not use outlets Extinguish any naked flames Do not smok...

Page 4: ...ity for this product For this see the contact address on the back cover of these instructions 2 2 Determined use The Uni Condens 8000 F 800 1200 floor standing condensing boiler has been designed for wet heating systems in e g apartment buildings or industrial applications The boiler is only approved for open flue mode When installing and operating the heating system Comply with standards regulati...

Page 5: ...ure return 14 Inspection opening on the water side both sides 15 Flow safety line 16 Heating flow 17 Boiler safety assembly accessories 18 Lifting points 2 6 Permissible fuels The boiler must only be operated with the specified fuels Only burners that are suitable for the specified fuels may be used Gas burner The combustion of biogas is not permitted Permissible fuels Natural gas from the public ...

Page 6: ...ere should be a maximum of 6 burner starts per hour averaged over burnerruntimeononeday Ifthenumberofstartsishigher theuser should be notified The system must be checked to find out whether thenumberofburnerstartscanbereduced Thecustomerserviceof the manufacturer can provide assistance with optimisation of the system 2 9 Burner requirements Only use specified pressure jet gas burners with floor st...

Page 7: ...d guidelines Observe the information on the data plate of the boiler 3 1 Combustion air quality To avoid corrosion keep the supply of combustion air free of corrosive substances e g halogenated hydrocarbons that contain chlorine or fluorine compounds Never use or store chlorinated cleaning agents or halogenated hydrocarbons as contained in spray cans solvents or cleaning agents paints and adhesive...

Page 8: ... 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 5 1 Shutting down the heating system 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 Shutting down the heating system in an emergency Only sw...

Page 9: ...nted correctly Check the heating system for leaks and the expansion vessel for functionality Observe the requirements regarding water quality operator s log If water loss occurs frequently locate the cause and rectify the problem without delay NOTICE System damage due to temperature stresses Onlyfilltheheatingsystemwhencold theflowtemperaturemustnot exceed 40 C During operation only fill the heati...

Page 10: ...Further information on the fault displays can be found in the service instructions of the relevant controlunit Inaddition burnerfaultsaresignalledbyanindicatoronthe burner Press burner reset button see operating instructions of burner and control If the burner still fails to start after three attempts contact a contractor 8 2 Other faults For other possible faults see the installation and operatin...

Page 11: ......

Page 12: ...Bosch Thermotechnik GmbH Junkersstrasse 20 24 D 73249 Wernau www bosch thermotechnology com ...

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