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If a room thermostat is installed we recommend our chronothermostat CLASS PIU’ which, in addition to gua-
ranteeing the comfort of a precise regulation of temperature, offers a notable range of heating programmes;
alternatively use a programming digital timer.
ATTENTION. The room thermostat with 230 V mains supply must be connected to the earth terminal, or use
a class II room thermostat.
Chronothermostat CLASS PIU’ (accessory)
- removal of any oxidation from burners
- removal of any encrustation from heat exchangers
- checking and general cleaning of fan
- checking connections between the various air/fume pipes
- general pipe cleaning
- checking general external appearance of boiler
- checking for proper ignition, shutdown and operation of both hot water and heating functions
- checking for proper seal on gas/water fittings and pipes.
- checking gas consumption at minimum and maximum power
- checking position of ignition electrode
- checking position of detection electrode
- checking combustion and efficiency parameters
- checking the no-gas safety device
- water system pressure
- expansion tank efficiency
- checking for proper operation of safety and adjustment thermostats
- checking for proper circulation pump operation
- checking that no gas whatsoever leaks from the unit and no combustion gas leaks from the down-draught
diverter or the boiler-flue connection.
- checking gas flow rate.
Do not clean the unit and/or its component parts with easily inflammable substances (e.g. petrol, alcohol etc.)
Do not clean panelling, painted and plastic parts with paint diluents.
Clean the panelling with soapy water only.
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