Scotsman EC 46, Руководство по обслуживанию

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Page 19
Page 19
The time between the signal out for the cleaning
of the water system can be modified according to
the setting of the two Dip Switches as below:
TIME 1 2
1 MONTH ON ON
3 MONTHS OFF ON
6 MONTHS ON OFF
1 YEAR OFF OFF
Once cleaned the water system, it’s necessary to
cancel the time stored into the PC Board by
pushing and hold for more then 20" the Red
Alarm Re-Set Button till it starts to blink.
This PC Board is also used to energise the Water
Pump to pump out the collected water inside the
sealed water tank.
In case the water level sensor transmit the signal
to the PC Board for more then 5 minutes
continuously the PC Board trip OFF the entire
machine lighting ON the Red Alarm light that
starts to blink fast (0.5" ON - 0.5" OFF).
WARNING: to assure the correct operation
of the Water level sensors, the water must
have a minimal electrical of 10
µ
s.
N. SEALED WATER RESERVOIR
Located on the bottom side of the unit, it is used
to collect all water coming from the:
• Overflow
• Water Drain Valve
• Storage bin
On its top cover are secured two metal pins
(Water Level Sensor) connected to the PWD PC
Board.
O. WATER DRAIN PUMP
Placed beside the Sealed Water Reservoir is
used to pump out the water contained into the
tank. It is energised, by the PWD PC Board, for
just few seconds.
P. CHECK VALVE
Placed on the discharge hose of the water pump,
it prevents the coming back of the pumped out
water.
Q. CONDENSER AIR FILTER
(Air cooled version)
Located in front of the air cooled condenser can
be removed by withdrawing it through the opening
of the front panel for cleaning or replacing.
A lower plastic guide, installed inside the unit, is
used for the correct sliding and location of the air
filter.
R. CONDENSER SENSOR
The condenser temperature sensor probe,
located within the condenser fins (air cooled
version) or in contact with the tube coil (water
cooled version) detects the condenser tempe-
rature variations and signals them by supplying
current, at low voltage, to the P.C. BOARD.
In case the condenser temperature rises and
reaches 70
°
C (160
°
F) - on air cooled models - or
60
°
C (140
°
F) - on water cooled models - the
current arriving to the micro processor is such to
cause an immediate and total stop of the machine
operation.