Viessmann VITOTRONIC 300 GW2 Operations Instructions download pdf (Page 30)

Servicing instructions

30

Servicing/cleaning instructions and note on disposal of unwanted equipment

Servicing

Servicing of heating systems is

required under current heating system

regulations and standards (DIN 4755,

DIN 4756 and DIN 1988-8).

Regular servicing of the heating system

will ensure troublefree, energy-saving

and environmentally friendly heating.

We strongly advise you to arrange a

service contract with your heating

contractor.

Operational checks

The following operational checks

should be carried out every month:

Regularly check the pressure of the

system.

Check correct operation of safety

valve.

Check correct operation of control

equipment.

Check all seals and re-seal if

necessary.

Check the ventilation facilities of the

boiler room (see safety note on page

2).

Check function of neutralizing unit.

Check level of neutralizing agent.

Boiler

All boilers have to be cleaned at certain

intervals as the flue gas temperature

and therefore the energy loss rise as

the level of contamination increases.

We recommend the use of a flue gas

thermometer.

The flue gas temperature can be

monitored with the flue gas

temperature sensor which is available

as an accessory. A flue gas

temperature monitoring system will

provide an indication of incorrect

burner adjustment and the degree of

contamination of the boiler.

The efficiency of the system will be

impaired if the flue gas temperature is

excessively high due to contamination

of the boiler or incorrect adjustment of

the burner. In this case it may be

necessary to clean the boiler or

readjust the burner.

A built-in hours run meter measures

the operating times of the burner. The

longer the operating times, the lower

the standby losses (see VDI 2067 for

guide values).

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