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7. Communications
Infrared (IR)
All products in the range can communicate via an infrared link between adjacent controllers.
It enables the parameters of this product (OEM) to be passed to a product fitted with RS485
(USER).
USER products are fitted with a graphics display and OEM products either have LED’s, or
three digit displays.
This unit is always an IR slave – no set-up or adjustment is needed.
For further information on Infrared and RS485 communication, see User Installation and
Maintenance Instructions.
Important: Do not cover or obstruct the infrared beam between products.
See appendix for further details.
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.
Level controls
Boiler water level controls and level alarms, however, do require testing and inspection. General
guidance is given in Health and Safety Executive Guidance Notes BG01 and INDG436.
For specific instructions for the Spirax Sarco system please see separate literature.
Cleaning instructions
Use a cloth dampened with tap / de-ionised water or isopropyl alcohol. Use of other cleaning
materials could damage the product and invalidate the warranty.
8. Maintenance
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