Noble HT-180 HH Installation, Operation And Service Manual Download Page 22

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07610-004-26-29-E

INSTALLATION & OPERATION

OPERATING INSTRUCTIONS

The Conserver XL-E Series CAM timer is a 1 minute, 30 second, 8-CAM timer

(CAM 8 is a spare)

that controls the operation of

the dishmachine. The following is a description of the set points for each CAM and the function of each switch.

CAM 1 is a cut CAM with a single notch that serves as the cycle/reset control.

FUNCTION: When the machine is in the operation mode the notch is in the home position. The machine will remain idle
until the door is opened, then CAM 1 moves to the start position and holds until the door is closed. The closing of the door
will start the next cycle. The CAM will rotate a complete cycle and return to the home position and hold.

CAM 2 is a cut CAM that provides the wash cycle timing.

FUNCTION: The wash CAM works off the normally open contacts of CAM 2. This requires the microswitch be held closed
by the CAM. It will close and energize the wash pump 2 seconds after the cycle switch is activated. The pump will operate
through the wash cycle (40 seconds) then shut down for the dwell period (20 seconds). As the CAM rotates it energizes
the pump for the rinse cycle (25 seconds). When CAM 1 reaches its home position it will de-energize CAM 2, shutting
down the wash pump.

NOTE: The last 6 CAMS are adjustable. The following instructions will require that the timer position have the

CAMs to the front and the motor to the left.

CAM 3 is an adjustable CAM that controls the drain valve.

FUNCTION: The drain solenoid works off the normally closed contacts of CAM 3. When the cycle is initiated, the microswitch
will be held open until it is allowed to drop into the notch of the CAM. This energizes the drain solenoid which then drains
the machine. After a 12 second delay the CAM reverses the microswitch, de-energizing the drain solenoid. This CAM may
require adjusting due to varying water pressure. The drain solenoid must remain open long enough to remove whatever
water the

ll valve solenoid allows in the machine. This could vary due to the water supply line pressure.

SETTINGS: The right side of CAM 3 must be set to pick up the microswitch just before the wash/rinse cycle CAM switch
drops. It will hold the drain solenoid open to drain all the water in the tank from the unit during the dwell period. Any adjustment
made to the drain should be made to the left side of CAM 3. The CAM must be moved back into the wash time until all of
the water is drained from the machine.

CAM 4 is an adjustable CAM that controls the fi ll valve and the amount of water used.

FUNCTION: The

ll valve CAM works off the normally closed contacts of CAM 4. This requires the microswitch to be held

open by the CAM and allowed to drop into the notch to operate the

ll valve. This energizes the

ll solenoid which opens to start

lling the machine with fresh water. After a 10 second delay the CAM reverses the microswitch, de-energizing the

ll solenoid.

The

ll CAM may require adjustment due to varying water pressure. The

ll solenoid must remain open a suf

cient length

of time to

ll the machine to the correct level.

SETTINGS: The right side of CAM 4 must be set to allow the microswitch to drop 2 seconds before the drain solenoid
is de-energized to ensure the detergent residue is

ushed from the unit. It will hold the

ll solenoid open until the CAM

switch arm is raised. At that time the

ll solenoid is de-energized, shutting off the incoming water. The tub will be

lled to

the correct level. Any adjustment made to the timing of the

ll solenoid should be made with the left side of CAM 4. To