Scotsman DXN 207 Service Manual page 11

Page 10
After 10 minutes the unit resumes its total
operation with the immediate start-up of the gear
motor and, 2 seconds later, of the compressor.
H. Check for the correct operation of the
electronic eye for the ice bin level control, by
placing one hand between the sensing "eyes"
located under the storage bin cover, to interrupt
the light beam. This interruption after 10 seconds
causes the shutoff of the unit. Allow the resumption
of the light beam previously interrupted and after
10 seconds the unit will resume - through the 3
minutes STAND-BY period - ice making process.
NOTE. The ICE LEVEL CONTROL (INFRA-
RED SYSTEM) is independent of the tempe-
rature however, the reliability of its detection
can be affected by dirt and scale sediment
which may deposit directly on the light source
and on the receiver.
To prevent any possible ice maker malfunction,
due to negative affection of the light detector,
it is advisable to follow the instructions for the
periodical cleaning of the light sensor
elements as detailed in the MAINTENANCE
AND CLEANING PRO-CEDURES.
I. SETTING OF ICE DISPENSING TIME
(ONLY ICE)
The dispensing time of the ice is factory set at 3"
but it is possible to modify it choosing between:
• From 1" up to 15"
• Continuous
To change this time perform the following proce-
dure:
Open the water supply line shutoff valve and give
power by moving the main switch to ON position
and push green ON/OFF button on the machine.
Push the Red Alarm button on the display for 10
seconds to enter in the Program Menu, use the
arrows to select "S" then press ICE button to
confirm
Press arrow to select time 1..2..3.. up to 15
seconds or CON for Continuous , then push ICE
to confirm.
Push WATER button for 5 seconds to ESC.
J. SETTING OF DISPENSING MODE
The unit can dispense ice only or ice and water
and it is also possible modify this setting
performing the following procedure:
Push the Red Alarm button on the display for 10
seconds to enter in the Program Menu, use the
arrows to select "H" then press ICE button to
confirm
Press arrows to select "on" for dispensing water
activated or "off" for dispensing water disabled,
then push ICE to confirm.
Push WATER button for 5 seconds to ESC.
K. SETTING OF THE DISPENSING
OPERATION
DXN 100-200 can be provided with two different
versions not interchangeable:
• Touch (No Optical Dispensing Devices installed)
• Touchless ( With Optical Dispensing Devices
installed)
The initial setting is already made in factory
according with the version of the unit, in case of
replacement of the P.C. Board perform the
following procedure to set up the dispensing
operation accordingly:
Push the Red Alarm button on the display for 10
seconds to enter in the Program Menu, use the
arrows to select "F" then press ICE button to
confirm
Press arrows to select "tch" for Touch version or
"tcL" for Touchless version , then push ICE to
confirm.
Push WATER button for 5 seconds to ESC.
L. CHECK OF THE DISPENSING
OPERATING MECHANISM
After having properly completed the above set up
procedures, check the correct operation of the
dispensing mechanism:
Touchless Version:
a) Place a glass or carafe in front of one of the
two Optical Dispensing Devices (Ice and/or
Water)
b) The dispensing drive motor and/or the water
solenoid valve starts to operate with ice and/
or water discharged through the bottom plastic
spouts
c) The drive motor remains in operation as per
setting dispensing time; the water inlet
solenoid valve remains in continuous
operation unless the glass of carafe is
removed.
Touch Version:
d) Place a glass or carafe under the plastic
spouts (Ice and/or Water)
e) Push ICE or WATER button , the dispensing
drive motor and/or the water solenoid valve
starts to operate with ice and/or water
discharged through the bottom plastic spouts
c) The drive motor remains in operation as per
setting dispensing time; the water inlet
solenoid valve remains in continuous
operation unless the WATER button is
released.
NOTE. When ice is not dispensed for
more than 30 minutes with the dispenser
in operation and compressor energized,
the drive motor will be activated for two
seconds to rotate the vane in order to
prevent ice block in the bin and optimize
the ice level in the storage bin.
M. If previously installed, remove the refrigerant
service gauges and re-fit the unit service panels
previously removed.
N. Instruct the owner/user on the general
operation of the ice machine and about the
cleaning and care it requires.
Page 10