Rinnai E75CN Instructions D'installation Et De Service page 61

13 Maintenance
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NOTICE
13.1 Periodic examination of venting systems and boiler
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NOTICE
13.2 Inspection
Removing casing figure29
Removing casing figure 30
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Maintenance or changes to the boiler may only be carried out by a qualified
technician.
The inspection of the boiler and venting system should be done every 2 years and
full maintenance every 4 years or 4000 hours of operation, whichever occurs first..
When doing this the circumstances of the boiler's location must be taken into account.
From this one can determine whether to deviate from this advice.
Please contact Rinnai for further guidance on the frequency and service
requirements. Contact details can be found on the back page of this manual.
Preparing the boiler for inspection
To carry out the maintenance activities please follow the next procedure:
- switch off the power supply;
- shut off the gas;
- valve off the boiler from the system using the boiler isolation valves in the plumbing
kit.
- remove the 4 screws A,B,C and D in the quick releases of the casing (figure 29);
- remove the screw E behind the door on the front of the casing (figure 30);
- remove it towards the front.
- clean the casing with a cloth with a simple (non-abrasive) cleaning agent;
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