Karcher SB Wash Oel 50-10 F VA - Manual (Page 18)

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Note
Plants without frost protection equipment
must be brought to a standstill during frost
conditions.
The anit freeze equipment contains:
– Thermal insulation
– Hot blowers
Note
The following properties are ensured if the
plant is equipped with frost protection
mechanisms.
– Unrestricted cleaning until –5 °C.
– Restricted cleaning below –5 °C.
– Frost safety of the plant until –20 °C.
Below –20 °C, carry out "Bringing the
plant to a standstill during frost condi-
tions".
Note
The pre-requisites for frost protection are:
– The operating type selection switch on
the control panel of SS wash has been
set to frost protection. Frost protection
is deactivated in the position "0/OFF“.
– Uninterrupted power and water supply
must be ensured. Water supply must
also be protected against freezing.
– Instructions for assembling and installa-
tion are given in chapter "Installing the
plant".
– The hot air blower has been set correct-
ly.
– All maintenance steps according to
"Maintenance and Care" have been
carried out correctly.
– The above-mentioned temperature de-
tails refer to the installation site. Tem-
perature details provided in the weather
report are not the deciding factors.
1 Hot blowers
The fan heater does heat the inside of the
equipment, in order to protect the equip-
ment from frost. 1 Performance switch
2 Thermostat swith
Adjustments:

Output regulator in position “II”
 Thermostat regulator at the frost pro-
tection level (snow flake)
Note
The frost protection mechanism works only
when the plant has been switched on and
the door is closed. The operating type se-
lection switch of the SS Wash should not be
set to "0/OFF". Similarly, there should be
no interruption in the power supply to the
plant.
ṇ Warning!
Dangers of burning, if fan heater does over-
heat. The incoming and outgoing air open-
ings may not be covered up. Freezing
damage because of not unforeseeable
power interruption. When there is a power
interruption the anti freeze equipment is not
in operation.
to get a better overview, the maintenance
concerning the aniti freeze will summarized
here. The checking of the anti freeze must
be done yearly before the frost perod. In section " maintenance and service" ought
to be performed also in the winter time.
Notice
Maintenance not being done on time or
from experts will mean, that there is no
guarantee concerning frost damage.
If the equipment is to be shut down, and
there is not danger of frost,

disconnect the water input,
 disconnect the power supply.
 Remove the RO membrane and store it
under anti-freezing conditions.
 Separat the water supply between the
base exchanger and the cooling of the
high pressure pump of SS wash.
 Rinse the plant (without base exchang-
er) with an anti-frost solution.
 Rinse the base exchanger with concen-
trated salt solution.
 Shut down the SS wash during frost.
 Blow out all water-carrying parts with
oil-free compressed air.
In case of doubt, call Customer Service to
carry out the shutdown operations.
Frost protection
Hot blowers
Maintenance jobs before and during the frost period
Time Activity Performance of whom
daily Check interiors of the
plant Is the hot air blower working? Operator
before the
frosting period Check frost protection de-
vices Turn the frost protection thermostat of SS wash in direction of "Check" until
the frost protection devices are turned on. The hot air blowers of ABS WSO
must start running. Further, at temperatures above 5 °C, the thermostat of
the hot air blower must also turn up. Then turn the frost protection thermo-
stat in an anti-clockwise direction until the stop. Then reset the thermostat
of the hot air blower. Operator
Shutdown
Shutdown during frost period
18 EN