Cissell HD150.1, Owner'S Manual

Page: 20 / 67

Page 20
Steam Piping - Installation Instructions
STEAM PIPING - 1. Set and anchor dryer in position. Machine should be level
INSTALLATION assure proper steam circulation.
INSTRUCTIONS
2. To prevent condensate draining from headers to dryer,
piping should have a minimum 12” (305 mm)above respective
header. Do not make steam connection to header with a
horizontal or downwardly facing tee or elbow.
3. Whenever possible, horizontal runs of steam lines must
drain, by gravity, to respective steam header. Water
pockets, or an improperly drained steam header will
provide wet steam, causing improper operation of dryer. If
pockets or improper drainage cannot be eliminated, install
a by-pass trap to drain condensate from the low point in the
steam supply header to the return.
4. In both steam supply and steam return line, it is
recommended that each have a 3/4”(20 mm) union and 3/4”
(20 mm) globe valve. This will enable you to disconnect the
steam connections and service the dryer while your plant is in
operation.
5. Before connecting trap and check valve to dryer, open globe
valve in steam supply line and allow steam to flow through
dryer to flush out any dirt and scale from dryer. This will
assure proper operation of trap when connected.
6. After flushing system, install bucket trap (with built-in
strainer) and check valve. For successful operation of dryer,
install trap 18" (458 mm) below coil and as near to the dryer as
possible. Inspect trap carefully for inlet and outlet
markings and install according to trap manufacturer's
instructions. If steam is gravity returned to boiler, omit
trap but install check valve in return line near dryer.
7. Install union and globe valve in return line and make final
pipe connections to return header.
PIPING 1. Trap each dryer individually. Always keep the trap clean
RECOMMENDATIONS and in good working condition.
2. When dryer is on the end of a line of equipment, extend header
at least 4 feet (2 m)beyond dryer. Install gloge valve, union,
check valve and by-pass trap at end of line. If gravity return to
boiler, omit trap.
3. Insulate steam supply and return line for safety of operator and
safety while servicing dryer.
4. Keep dryer in good working condition. Repair or replace any
worn or defective parts.