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8. AFTERCOOLING CIRCUIT INSTALLATION
Boiler warranty is valid only in case, that functional thermostatic valve, connected to the cold
water source, is installed in the boiler aftercooling circuit. If the cold water source depends on
electricity (home water plant), whole device can be out of order in case of power failure. In this
cases, use water tanks placed higher than boiler, connected to thermostatic valve. Tank volume
has to be appropriate to the boiler outuput.
ATTENTION! If there is no aftercooling circuit on the boiler and it comes to boiler
overheating, serious and non-recurring damage or even fire may occure.
9. CORRECT ADJUSTMENT OF AIR INLETS
Correct adjustment of primary and secondary air by STANDARD and PROFI boilers is marked on
tin-plate and it is not necessary to manipulate with that. Correct setting of primary air (upper
butterfly) is 100 %, secondary air (bottom butterfly) is set to 35 %. This relates to all outputs of
DPX boilers (15, 25, 35, 45).
Summary of Contents for ATTACK DPX 25 COMBI Pellet
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