This manual must only be used by a qualified heating installer/service technician. Read all instructions, includ-
ing this manual and all other information shipped with the boiler, before installing. Perform steps in the order
given. Failure to comply could result in severe personal injury, death or substantial property damage.
Part number 550-100-160/0715
™
CONDENSING GAS BOILER
220/299/300/399
Advanced Manual
Multiple boiler installation & settings + Single boiler advanced settings
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