Service manual

Page 36
Page 36
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Rx Tx
WATER IN VALVE
HOT GAS VALVE
CONTACTOR COIL
FAN MOTOR
WATER PUMP
- EVAPORATOR
- AMBIENT
- CONDENSER
TEMPERATURE SENSORSBINCOMPRESSOR
TRANSF.
DATA
PROCESSOR
ELECTR.
TIMER
DIP
SWITCH
ELECTRONIC CARD
L
N
RELAYS
RELAY
TRIAC
WATER DRAIN VALVE
FIG. 7
9. Check for refrigerant leaks.
C. CLEANING INSTRUCTIONS OF WATER
SYSTEM
1. Remove front and top panel to gain access
either to the control box and to the evaporator.
2. Remove the right side panel to reach the
water drain tube.
3. Wait till the end of defrost cycle then, with
the help of a normal screw driver, turn the program
selector head on STAND BY position to temporaly
stop the operation (Fig.7).
4. Prepare for each freezing chamber the
cleaning solution by diluting in a plastic container
two or three liters of warm water (45°-50°C) with
a 0,2-0,3 liters of SCOTSMAN Ice Machine
Cleaner.
WARNING. The SCOTSMAN Ice Machine
Cleaner contains Phosphoric and
Hydroxyacetic acids. These compounds
are corrosive and may cause burns if
swallowed, DO NOT induce vomiting. Give
large amounts of water or milk, Call
Physician immediatelly. In case of external
contact flush with water. KEEP OUT OF
THE REACH OF CHILDREN
5. Scoop out all the ice cubes stored into the
bin in order to prevent them from being
contaminated with the cleaning solution then
flush out the water from the sump reservoir by
bending down the vertical sump drain hose.
6. Remove the evaporator cover then slowly
pour onto the evaporator piaten the cleaning
solution- With the help of a
brush dissolve the most resistant and remote
scale deposits in the platen.
7. Set the program selector head on
CLEANING/RINSING.
The 5th YELLOW LED lights-up (Fig.8).
NOTE. With the system in CLEANINGI
RINSING mode the water pump is the only
component in operation to circulate the
cleaning solution in the entire water system.
8. Let the unit to remain in the CLEANING/
RINSING mode for about 20 minutes then turn
the program selector on STAND BY again.