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Part number 550-100-026/0404
• Installation
• Startup
• Maintenance
• Parts
This manual must only be used by a qualified heating installer/service technician.
Read all instructions, including this manual, the Ultra Control Supplement and the
Ultra Vent Supplement, before installing. Perform steps in the order given. Failure
to comply could result in severe personal injury, death or substantial property
damage.
with
Ultra-80, -105, -155, -230 & -310
Gas-fired
Water boiler
Series 2
NOTICE:
Series 1/Series 2 identification
Read the boiler rating plate to
determine the series number. The
rating plate is located on the right
side of the boiler.