Model CFC ClearFire Commercial Boilers
29 Rev. 05-2012
Table B5-19. Max Firing Rate vs. Glycol Concentration
Table B5-20. HF Speed Settings vs. Glycol Content
Condensation
As the Model CFC boiler is a full condensing boiler, condensation will develop during
startup of a cold boiler or at any time when the return water temperature is below
the dew point or approximately 132
F (55.5 C).
The condensation collects in the lower portion of the boiler from the tube surfaces
and from the stack, and must be discharged to a drain. A Condensate trap must be
piped on the boiler and must be field piped to either a drain or to the optional
condensate treatment kit. Table B5-21 provides the amount of condensation that
will form when the boiler operates in the full condensing mode.
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