Bosch ZSB 30-2 A Operations Instructions download pdf (Page 55)

Inspection/Servicing | 55

6 720 644 143 (2010/09)

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.

Important notes

• The following test equipment is required:

– Electronic flue gas emission meter for CO

, CO and

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 (Æ page 35).

B Check all connections for leaks.

B Check the gas-air ratio and adjust if necessary

(Æ page 50).

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.

For an overview of faults, see page 67.

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Bosch ZSB 30-2 A Operations Instructions Page 55

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