REVISION HISTORY
R1 (SEPT 2005) Initial release
R2 (JULY 2007) Venting requirements (Canada) to ULC-S636; internal wiring diagram and warranty details added
R3 (MAR 2010) VFC 45-225-SL variant added (with new NRG-137 fan); warranty removed to separate document
R4 (SEPT 2012) Polypropylene venting, detachable lid heat exchanger and US Energy Act disclosures added;
VFC 45-225-SL designation merged within base VFC 45-225 model
IMPORTANT
This Boiler is equipped with a feature that saves energy by reducing the boiler water
temperature as the heating load decreases. This feature is equipped with an override
which is provided primarily to permit the use of an external energy management system
that serves the same function. THIS OVERRIDE MUST NOT BE USED UNLESS AT
LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE:
• An external energy management system is installed that reduces the boiler
water temperature as the heating load decreases.
• This boiler is not used for any space heating.
• This boiler is part of a modular or multiple boiler system having a total input
of
300,000 BTU/hr or greater.
• This boiler is equipped with a tankless coil (not applicable to IBC’s VFC boilers).
US installers should contact IBC for any further information required.
As referenced on page 2-7 of this manual, the following message is relevant to users in the USA:
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