Cissell HD175, Owner'S Manual

Page: 23 / 73

Page 23
Steam Piping - Installation Instructions
STEAM PIPING
INSTALLATION
INSTRUCTIONS
PIPING
RECOMMENDATIONS
1. Set and anchor dryer in position. Machine should be level to assure
proper steam circulation.
2. To prevent condensate draining from headers to dryer, piping should have
a minimum 12” 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 union and a globe valve. This will enable you to disconnect the
steam connections and service the dryer whole 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” 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 connec-
tions to return header.
1. Trap each dryer individually. Always keep the trap clean and in good
working condition.
2. When dryer is on the end of a line of equipment, extend header at least 4
feet beyond dryer. Install globe 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.