Commissioning Report (For Installations Below 70Kw); Shutdown; Standard Shutdown; Shutting Down When There Is A Risk Of Frost - Bosch Worcester GB162-50 V2 Installation, Commissioning And Servicing Instructions

8.15 Commissioning report (for installations below
70 kW)
▶ Sign all completed commissioning work and enter the date.
Commissioning steps
1. Filling and venting the heating
system.
• Expansion vessel pre-charge
pressure (observe the
installation instructions for
the expansion vessel)
• Heating system fill pressure
2. Check gas type against the data
plate.
3. Vent the gas line.
4. Check the combustion air/flue
gas connection.
5. Adjusting the boiler:
• Adjust the output
• Adjust the flow temperature
• Setting pump run-on time
6. Measure the gas supply pressure.
7. Measure gas/air ratio
8. Measure the CO content.
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9. Check the gas tightness.
10. Check the flue gas tightness.
11. Check the function of the boiler.
12. Fitting the casing.
13. Instruct the user, hand over
technical documentation.
Confirm professional commissioning:
Table 17 Commissioning report
9

Shutdown

9.1

Standard shutdown

▶ Take the boiler out of operation via the on/off switch.
▶ Close the gas isolation valve.
▶ Close the flow and return isolation valves.
9.2

Shutting down when there is a risk of frost

If the boiler stays on:
▶ Set the pump overrun time to 24 hours ( Chapter 7.2 "Setup
menu").
▶ Make sure that a sufficient flow is possible at all radiators.
If the boiler is switched off:
▶ Take the boiler out of operation via the on/off switch.
▶ Close the gas isolation valve.
▶ Drain the entire heating system.
▶ If installed, drain the entire potable water system.
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10

Environmental protection

Environmental protection is one of the principal policies for Worcester.
We regard quality of performance, economy and environmental
protection as equal objectives. Environmental protection laws and
regulations are strictly adhered to.
To protect the environment, we use the best possible technology and
materials taking into account cost effectiveness.
Packaging
Where packaging is concerned, we participate in country-specific
recycling processes that ensure optimum recycling.
All packaging materials are environmentally compatible and can be
recycled.
Used appliances
Old appliances contain materials that should be recycled. The
assemblies are easily separated and the types of plastic are clearly
marked. In this way the individual assemblies can be easily sorted and
directed to recycling or disposal.
11

Inspection and servicing

To safeguard the efficiency of the boiler and avoid possible technical
problems, the boiler must be inspected and serviced at least once a
year.
WARNING: Gas explosion.
▶ Turn off gas valve before working on gas-carrying
components. Guard against unintentional
re-connection.
▶ Check for leaks before working on gas-carrying
components.
WARNING: flue gas poisoning.
▶ Check flue integrity for leaks before working on gas-
carrying components.
CAUTION: Risk of electric shock
▶ When performing measurements and adjustments at
the boiler, never touch the burner control unit, fan or
pump. These are 230 V parts.
▶ Always isolate the boiler from the power supply
before working on the electrical parts. Guard against
unintentional re-connection.
11.1

Important information

You will need the following measuring devices and tools:
• Pressure gauge with a measurement accuracy of 0.01 mbar.
▶ Use only original spare parts.
▶ When carrying out the work, check all removed gaskets for damage,
deformation or ageing and replace if necessary.
Shutdown
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