34
7.2 RS485 addressing
An offset is added to the register addresses (see above) for each device, depending on their
position on the IR bus, i.e. the master’s offset is 0, the device to its right hand side has an
offset of 100, the one to its right 200 and so on.
Master
Slave
IR Bus
RS485
Slave Slave Slave
IR address 1 2 3 4 5
RS485 Offset 0 100 200 300 400
8. Maintenance
Note: Read the 'Safety information' in Section 1 before starting any maintenance.
No special servicing, preventative maintenance or inspection of the product is required.
During installation or maintenance, the rear of the product must be protected from
environmental pollutants entering the product. Alternatively, the tasks can be performed
in a dry clean environment.
8.1 Cleaning instructions
Use a cloth dampened with water or isopropyl alcohol. Use of other cleaning materials could
damage the product and invalidate the marking.
8.2 Bottom blowdown
In many countries, including the UK, legal regulations are in force concerning boiler blowdown.
In particular, attention is drawn to the danger of working on a shut-down boiler while other
boilers are operating.
General guidance is given in Health and Safety Executive Guidance Note PM60.
The battery can be replaced, and must be removed before disposing of the product.
The battery must not be disposed of in waste destined for landfill or untreated incineration, but
must be collected separately and disposed of in accordance with local and national regulations.
Fig. 13
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