Checking And Maintenance; Checks; Hydraulic Pressure; Draining - OERTLI PK 350 User Manual

7 Checking and maintenance

7.1 Checks

Make the following checks at least 1 time a year:
- Safety devices
- System pressure
- Checking burner safety
- Checking the safety thermostat
- Condensates neutralisation system

7.2 Hydraulic pressure

Checking the hydraulic pressure. The hydraulic pressure must be a
minimum of 0.8 bars. Adjust the pressure if necessary, avoiding a
sudden influx of cold water into the boiler when it is hot.
This operation should be required only a few times in each heating
season, with very low quantities of water; otherwise, look for the leak
and repair it.

7.3 Draining

We advise you against draining the system unless it is absolutely
necessary.

7.4 Maintenance

The boiler will only operate efficiently if the exchange
surfaces are kept clean.
Ensure the Appliance is serviced in accordance with the
manufacturer's instructions by a suitable qualified person.
The boiler must be serviced and fully cleaned and the flue gas
conduit swept by a qualified professional at least 1 times per
year.
16/03/2016 - 300019443-02
Carry out the following maintenance at least 1 time a year:
- Cleaning the burner
- Cleaning of the heating body
- Cleaning of the condenser
- Cleaning the siphon
- Cleaning the flue gas circuit
PK 350 - PK 450 - PK 550
7. Checking and maintenance
0.8...1.5 bar
D000903
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