Optional PVC vent system installation instructions supplement
2
O
Th ese instructions are specifi c to using schedule 40 PVC pipe as the
vent system for the RBI Fusion. Th e instructions contained in the
Fusion Installation and Operation Manual, including all applicable
Combustion Air & Ventilation and Venting instructions must be
followed.
Venting of the Futera Fusion with PVC material
requires the factory supplied PVC adapter kit. Th e vent
system must conform to local codes and/or the latest
edition of the National Fuel Gas Code ANSI Z223.1/
NFPA 54. Failure to properly vent this product can
result in CO poisoning causing severe personal injury
or death!
The return water temperature entering the Futera
Fusion using the PVC venting option must not exceed
155°F. Higher return water temperatures will result in
a reduction of the fi ring rate.
The PVC vent adapter, Figures 1 and 2, comes fitted with a flue
temperature sensor and flue temperature high limit switch. This
system provides redundant over-temperature protection for the PVC
vent system. Th e fl ue temperature sensor continuously monitors the
temperature of the fl ue gas exiting the Fusion. If the return water
temperature exceeds 155°F the HeatNet Control, via the flue
temperature sensor, will recognize the resultant increase in flue
temperature and reduce the fi ring rate of the Fusion. Should the
sensor fail, the manual reset high limit switch will trip and shut down
the Fusion before the fl ue temperature can exceed a safe limit.
Figure 1
PVC Vent Horizontal Adaptor
