Primo Water RAVEN XR15, Руководство пользователя

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Exhaust ducting, hot air - roasters & afterburners
1. The exhaust air from the roasting process is hot and contains oils and residues
which are flammable. In the event of a ducting/flue fire, the internal duct temperatures
can exceed 1000° F (538°C), which could cause nearby combustible materials to
ignite. Thus, Diedrich recommends, at a minimum, stainless steel, double wall, positive
pressure grease ducting that meets the applicable region/local standards, such as UL
for USA, ULC for Canada, and CE for the European Union.
2. An important consideration when designing an exhaust ducting system is the
static pressure. The static pressure is the back-pressure or suction within the system.
The exhaust ducting that connects to the roaster, cyclone, or afterburner, must be
designed to operate with a static flue pressure between negative 0.15”WC (suction)
and positive 0.25”WC (back-pressure) at the exhaust of the roaster (cyclone or
Afterburner, as applicable) while in operation.
3. For Roasters (with or without cooling bin cyclone, and without an Afterburner).
Ducting must be suitable for 500°F (260°C) continuous, 2,000°F (1,093°C) for
30, minutes, and comply with UL-1978/ULC-SC662 Standard for Grease Ducts in the
USA/Canada, and/or equivalent standards for other countries (such as CE standards for
the European Union).
Installation must be done in accordance with appropriate NFPA standards in the
USA or equivalent standards in other countries. The installation must also comply with
the manufacturer’s installation specifications and allowable distance to combustible/
noncombustible materials.
4. For Roasters with an Afterburner.
Ducting from the Afterburner must be suitable for 1,000°F (538°C) continuous,
1,400°F (927°C) intermittent, and comply with UL103/ULC_ORD-C959 in the USA/
Canada, and/or equivalent standards for other countries (such as CE standards for the
European Union).
Installation must be done in accordance with appropriate NFPA standards in the
USA or equivalent standards in other countries. The installation must also comply with
the manufacturer’s installation specifications and allowable distance to combustible/
noncombustible materials.