Shutting Down; Frost Protection - Kärcher HWE 4000 Manual Original

 Shut off water supply.
 In hand spray operations, press the hand-spray gun until the
plant is pressure-less.
 Close the fuel supply tap.
Operation
Danger
Risk of injury due to uncontrolled operating circumstances.
Do not make any changes to the fixed safety and control set-
–
ups.
Use only the nozzles that have been listed in the "Accesso-
–
ries" chapter or have been released by the manufacturer for
use.
 Open fuel supply.
 Open the water supply.
 Turn the emergency-stop switch to "ON" position.
 Release emergency-stop button by pulling it.
Use the end-switch in the piping system provided at the site to
bring the "Hot water" and "Steam stage" taps into the desired po-
sition for the following operating types:
Operating with hot water
–
spray jet operation (with upgrade kit spray jet only)
–
Steam operation (with upgrade kit for steam stage only)
–
Operating with hot water
Danger
Danger of scalding by hot water!
 Turn the selection switch of the remote control to "Temperatur
heiß". The thermostat "hot water" will be activated.
 Set the desired water temperature on the thermostat. Maxi-
mum temperature is 95 °C.
 Open tap "hot water".
 Close tap "steam stage"
 Start high pressure unit. The burner gets automatically start-
ed after 30 seconds when the flowing water quantity is large
enough.
spray jet operation (with upgrade kit spray jet only)
Danger
Danger of scalding by hot water!
Danger
Follow the safety instructions of the manufacturer of the high
pressure cleaning unit!
Danger
The water in the pass boiler may not be germ-free if there are
long breaks in operations. Hence, first spray the still-standing wa-
ter into the drainage for a few seconds before using it in the food
area.
 Turn the selection switch of the remote control to "Temperatur
heiß". The thermostat "hot water" will be activated.
 Close tap "hot water".
 Close tap "steam stage"
 Start high pressure unit. The burner gets automatically start-
ed after 30 seconds when the flowing water quantity is large
enough.
Due to the reduction in the quantity of water, the burner remains
limited to stage 1 (physical safeguard for t
ing-up phase may therefore take a little longer.
Caution
While making use of the spray jet operations, please ensure that
the spray jet is used for a longer period of time. Otherwise the
burner switches in short intervals.
32
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Steam operation (with upgrade kit for steam stage on-
Danger of scalding by hot steam!
 Set the selection switch of the remote control to steam oper-
Caution
Risk of damage to the safety valve "Dampfstufe". You must first
release the water pressure by opening the hand-spray gun be-
fore switching the taps to steam stage.
 Close tap "hot water".
 Open stop-valve "steam stage". This will open the half-load
 Start high pressure unit. The burner gets automatically start-
Note: The permissible operating pressure is 2 MPa.
Caution
Overheating can cause damage to the plant. Remember to first
switch off the burner after hot water/ steam operations and after
adequate cooling down (below 80 °C) switch off the pump and
the stop-valves.
In automatic plants, this situation is taken care of when the pump
gets switched off after a certain time delay.
 Turn the selection switch of the remote control to "Temperatur
 Allow the plant to cold run (see above).
 Switch off the high pressure unit.
 Shut off water supply.
 Close fuel supply.
 Drain off water pressure.
Protect the water-carrying parts of the plant against frost because
they can get totally damaged.
–
or
–
The latter is recommended even if the plant is to remain idle for a
longer period of time (the anti-frost agent also has an anti-corro-
sion effect).
Note: Observe handling instructions of the anti-freeze agent
manufacturer.
 Mix the anti-frost agent with water according to details provid-
 Mix the anti-forst solution in the swimmer tank of the high
 Switch on the high pressure pump and pump the anti-frost so-
 Switch off the high pressure pump.
Caution
= 100 °C). The heat-
max
Risk of injury and damage! Note the weight of the appliance in
case of storage.
Caution
Risk of injury and damage! Observe the weight of the appliance
when you transport it.
 When transporting in vehicles, secure the appliance accord-
7
-
EN
ly)
Danger
ations. The thermostat "steam stage" will be activated.
solenoid valve.
ed after 30 seconds when the flowing water quantity is ok.

Shutting down

kalt". The thermostat "hot water" will be deactivated.
In hand spray operations, press the hand-spray gun until the
plant is pressure-less.

Frost protection

Install the plant in a frost-protected room.
Rinse the plant with an anti-frost solution.
ed by the manufacturer.
pressure pump or in some other container.
lution through the unit until it comes out at the nozzle.
Storage
Transport
ing to the guidelines from slipping and tipping over.