Before Startup; Water Supply; Start Up; Cold Water/Hot Water Operation - Kärcher K 855 HS Original Operating Instructions

Before Startup

Illustrations on Page 2
Illustration
Mount loose parts delivered with appliance
prior to start-up.

Water supply

According to the applicable regula-
tions, the appliance must never be
used on the drinking water supply
without a system separator. Use a
suitable system separator manufactured by
KÄRCHER; or, as an alternative, a system
separator as per EN 12729 Type BA. Water
flowing through a system separator is consid-
ered non-drinkable.
Note: Impurities in the water can damage the
high-pressure pump and accessories. For
protection, the use of the KÄRCHER water fil-
ter (optional accessory, order no. 4.730-059)
is recommended.
Water supply from mains
Observe regulations of water supplier.
For connection values, see type plate/techni-
cal data.
Use a fibre-reinforced water hose (not in-
Î
cluded) with a standard coupling. (Mini-
mum diameter 1/2 inch (13 mm),
minimum length 7.5 m).
Illustration
Screw the coupling element (supplied) to
Î
the water connection on the appliance.
Push the water supply hose onto the cou-
Î
pling unit, then connect it to the water sup-
ply.

Start up

Illustration
Fill fuel tank with heating oil or diesel.
Î
Danger
Risk of explosion! Only refill diesel oil or light
fuel oil. Unsuitable fuels, e.g. petrol, are not to
be used.
Caution
Below exterior temperatures of 6°C, only Win-
ter diesel must be used, as there might be
problems with operating due to the flocking of
diesel components.
The fuel tank must be sufficiently filled, even
during cold water operation. If the fuel tank is
empty, the fuel pump will run dry and be de-
stroyed.
Illustration
Connect the high pressure hose to the
Î
high pressure connection of the appli-
ance.
Illustration
Push the spray lance into the trigger gun
Î
and fasten it by turning it through 90°.
Illustration
Completely open the water tap.
Î
Illustration
Insert the mains plug into the socket.
Î

Cold water/hot water operation

Important instruction: Black water can build
up in the heating coil if the appliance is not
used for extended periods of time. Therefore,
we recommend rinsing the appliance first
without the spray lance attached prior to star-
tup, until clear water is emitted from the hand
spray gun. For this, turn the appliance on us-
ing the appliance switch. Discharge the water
from the rinsing process into the public sewer
system.
Danger
The trigger gun is subjected to a recoil force
when the water jet is discharged. Make sure
that you have a firm footing and are also hold-
ing the trigger gun and spray lance firmly.
Caution
Dry runs lasting longer than two minutes lead
to damages to the high pressure pump. If the
appliance does not build up pressure within
two minutes, switch it off and proceed as in-
structed in the Chapter "Help with faults".
Illustration
Turn on the appliance "I/ON".
Î
Illustration
For hot water operation, also switch on
Î
the appliance switch for burner operation.
Important instruction: If there is air in
the fuel line (with new appliances or after
operating with an empty tank), it can take
up to 5 minutes until the burner starts.
Illustration
Unlock the lever on the trigger gun.
Î
15
English