Inspection/Servicing - Bosch ZSB 30-2 Installation And Servicing Instructions

15

Inspection/Servicing

To ensure that gas consumption and environmental
impact remain as low as possible over an extended
period of time, we recommend that you take out an
inspection/servicing contract with an authorised
contractor covering an annual inspection, and servicing
at other times as required.
DANGER: Risk of explosion!
B Turn off gas valve before working on gas-
carrying components.
B Check for leaks before working on gas-
carrying components.
DANGER: Risk of poisoning!
B Check for leaks before working on gas-
carrying components.
DANGER: Risk of electric shock!
B Before carrying out work on electrical
components, disconnect the power
supply (230 V AC) (fuse, circuit breaker)
and secure against unintentional
reconnection.
WARNING: Risk of scalding!
Hot water can cause severe scalding
B Drain the appliance before working on
components that carry water.
NOTE: Leaking water may damage the
Heatronic module.
B Cover the Heatronic module before
working on any parts that carry water.
Important notes
For an overview of faults, see page 67.
• The following test equipment is required:
– Electronic flue gas emission meter for CO
exhaust temperature
– Pressure gauge for 0 - 30 mbar (0 - 3 kPa)
(resolution at least 0.1 mbar (0.01 kPa)
• Special tools are not required
• Permissible lucricants:
– For components in contact with water: Unisilkon L
641 (8 709 918 413)
– Unions: HFt 1 v 5 (8 709 918 010).
B Use 8 719 918 658 as heat conducting paste.
B Only use genuine spare parts!
B Refer to the spare parts catalogue when ordering
spare parts.
B Always renew seals and O-rings removed during
servicing or repair work.
After inspection/servicing
B Retighten all loosened threaded fittings.
B Recommission the appliance (
B Check all connections for leaks.
B Check the gas-air ratio and adjust if necessary
( page 50).
Inspection/Servicing | 55
, CO and
2
page 35).
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