Boiler Manual
Gas-fi red water boilers – Series 4
Featuring
Flexibility
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Part number 550-100-400/0119
This manual must only be used by a qualifi ed heating installer/service technician. Read all instructions, including 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.
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