Table of Contents
Advertisement
The B&C HP models use a single-speed
motor to drive the cylinder via V-belts in all
speeds. The cylinder is supported by two
spherical roller bearings located in a bearing
housing made of cast iron.
The motor is controlled by the computer
control located in the front and the AC
inverter drive located in the rear panel. Any
speed can be programmed for any wash
cycle. Some speed ranges are blocked out
for programming due to safety reasons. This
speed range is not important and normally
speeds for wash or extraction are not
selected within this range. Any wash speed
in the range of 10-50 RPM and extraction
speeds 150-Maximum RPM can be
programmed. Further any reversing action
can be programmed. Normal reversing
action is 18 seconds forward, pause for 3
seconds, and 18 seconds reverse. Any
temperature between 70F to 200F (20-95C)
can be programmed. Any water level in the
range of the machine parameters can be
programmed in centimeters. The computers
will automatically provide safety levels for
steam injections and door operations.
Water entry into the machine is through an
air gap vacuum breaker utilizing electro-
magnetic water valves controlled by the
computer. By utilizing the air gap vacuum
breaker, backflow into the water supply is
impossible. The computer also controls the
drain, supply dispenser, any external liquid
supplies, steam injection and any other vital
functions of the wash program. The
computer can even record cycles and data
of importance that could be used for
maintenance purpose.
Installation
Theory of Operation
The steam, if installed is injected in the
bottom of the shell via a steam injector. The
steam is controlled by a steam valve that is
programmed by the micro computer.
The cylinder is perforated, allowing water to
pass through and drain from within during
drain and extract steps. Lifting ribs inside
the cylinder lift the load from the wash
solution and allow the load to tumble and
falling back into the solution when the load
reaches the approximate 10-11 o'clock or 1-
2 o'clock positions. This mechanical action
removes soil from the fabric. Furthermore,
the lifters are perforated on the top so that
water can cascade over the goods and wet
them quickly. This reduces water
consumption as water is picked up at the
cylinder's lowest point and lifted and
splashed over the goods at the highest point
as the cylinder rotates.
A stainless steel door is provided for loading
and unloading. A door lock system
prevents operation of the machine when the
door is open. The door is locked during
operation utilizing an air cylinder and a
manual latch for safety reasons. The door
lock is provided with magnetic sensor to
indicate that the machine is locked and
provide for start of the machine when the
door is closed and locked.
The AC drive, contactor, circuit overload
protectors, input power supply connections,
external supply connections, and control
transformer are behind a cover of the rear
of the machine.
The supply dispenser is mounted on the
10
Advertisement
Table of Contents
