Operating Instructions and Installation Instructions

ULTRAMAX PB 65 - 120
24 L290 ©MHS Boilers 13/12/2010
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7.0 Gas connection
Authorised gas installers must perform the layout of gas pipes and connection to the gas line only. Heating
and gas lines must be cleaned from any residue, particularly for older systems, prior to the connection of the
gas condensing boiler. Care must be taken to ensure a non-stressed layout of all gas lines.
Prior to commissioning, all pipe conduits and connections must be checked for tightness and leaks. Gas
fittings at the burner may be pressure checked up to 150 mbar.