Champion usn-72 ユーザーガイド

Part 5: BASIC SERVICE

INITIAL STATE OF THE MACHINE
 Doors open
 Power off
 Tanks empty
 Booster full of water
 End of cycle

THEORY OF OPERATION

  The days first operation should find the machine in the above condition. The operator is to then

fill the machine through the manual ball valves to the specified level suitable for operation. At

this point the machines power switch, SW, can be turned to the “ON” position.

1.) THE “CB” CIRCUIT BREAKER
  The purpose of this device is to limit the machines control current and is rated for 5A. The

normal state of this device is closed. When the control circuit has a current fault the breaker will

open, the button on the face of the breaker will push out, and shut down the machines operation.

It is reset by pushing the button on the face back in.

2.) THE “SW” POWER SWITCH
 The purpose of this device is to turn the machine on and off. In the “ON” position, the switch

passes power from the circuit breaker, CB, to wire #3. With the switch “ON” the power on light,

“PL”, will illuminate. Wire #3 is the controlling voltage that allows other devices to operate with

no other conditions satisfied other than the power being on. These devices include:

A.) 1CR. The relay 1CR monitors the state of the door switches. If either the wash or rinse tank

door is open the relay will not energize. Contacts on this relay prohibit the pumps and conveyor

from running when the doors are open, they prohibit the final rinse valve from energizing with

the doors open, and prohibit the steam coils from energizing with the doors open.

B.) WFSW  The device WFSW is the wash tank float switch. When the wash tank is empty the

magnet in the float causes a reed switch in the stem to close. This energizes the wash tank float

switch relay, 6CR.

C.) RFSW  The device RFSW is the rinse tank float switch. When the rinse tank is empty the

magnet in the float causes a reed switch in the stem to close. This energizes the rinse tank float

switch relay, 7CR.