B&C Technologies DI-475 Industrial - Manual (Page 18)

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G. STEAM INFORMATION
It is your responsibility to have All steam plumbing connections made by a qualified
professional to assure that the installation is adequate and conforms with local and state
regulations or codes.
IMPORTANT: Failure to comply with the requirements stipulated in the
manual can result in component failure, which will VOID
THE WARRANTY.
NOTE: The DA-475 is manufactured with a pneumatic (piston) damper
system, which requires an external supply of air (80 psi +/- 10 psi).
See Steam Damper Air System Connections Section H item 3.
1. STEAM REQUIREMENTS, High Pressure
A. Inlet ---- 2-1/2”inch supply line connection.
B. Return --- 1-1/4”inch return line connection.
Operating Steam Pressure, High Pressure
Maximum 125 psig 8.79 kg/sq cm
Minimum 100 psig 7.03 kg/sq cm
Heat Input (Normal Load) 60 Bhp
Consumption
(Approximate)
1,367 lbs/hr ~620 kg/hr
2. INSTALLATION INSTRUCTIONS
To insure that an adequate supply of steam is provided, be sure that the steam return lines
are sized and laid out as stipulated in this manual. Inadequate steam and steam return lines
or improper steam plumbing will result in poor performance and can cause component
failure. Clean, dry steam must be provided to the dryer.
IMPORTANT: Steam coil failure due to water hammer by wet steam
VOIDS WARRANTY .
A. The pressure of the condensate in the steam supply will cause water hammer and
subsequent heat exchanger (steam coil) failure. The steam supply connection into the
main supply line must be made with a minimum 10-inch riser. This will prevent any
condensate from draining towards the dryer.
B. The steam supply piping to the dryer must include a 12-inch rise along with a drip trap
and check valve. This will prevent any condensate from entering the steam coil.
C. Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and
this will cause the steam coil connections to crack if they are hard piped to the supply and
return mains.
D. Shut-off valves for each dryer should be installed in the supply, return, and drip trap
return lines. This will allow the dryer to be isolated from the supply and return mains if the
dryer needs maintenance work.