Safety Instructions; Safety Devices; Start Up; Safety Valve - Kärcher HDS 5/11 U/UX Manual

pH value
electrical conductivity *
settleable solids **
total suspended solids *** < 50 mg/l
Hydrocarbons
Chloride
Sulphate
Calcium
Total hardness
Iron
Manganese
Copper
Active chloride
free of bad odours
* Maximum total 2000 μS/cm
** Test volume 1 l, settling time 30 min
*** no abrasive substances

Safety instructions

– Please follow the national rules and
regulations for fluid spray jets of the re-
spective country.
– Please follow the national rules and
regulations for accident prevention of
the respective country. Fluid spray jets
must be tested regularly and the results
of these tests must be documented in
writing.
– The heating appliance of the machine is
an ignition plant. All national laws and
regulations about heating systems must
also be followed.

Safety Devices

Safety devices serve for the protection of
the user and must not be put out of opera-
tion or bypassed with respect to their func-
tion.
6,5...9,5
Conductivity
fresh water
+1200 μS/cm
< 0,5 mg/l
< 20 mg/l
< 300 mg/l
< 240 mg/l
< 200 mg/l
< 28 °dH
< 50 °TH
< 500 ppm (mg
CaCO /l)
3
< 0,5 mg/l
< 0,05 mg/l
< 2 mg/l
< 0,3 mg/l
– 3
EN
Pressure switch
The pressure switch turns the device off
when the handgun is closed and switch on
when the handgun is opened.

Safety valve

– The safety valve opens in case of ex-
cessive pressure in the boiler or if the
overflow valve or the pressure switch is
broken.
– The safety valve is set by the manufac-
turer and sealed. Setting only by cus-
tomer service.
Water shortage safeguard
The water shortage safeguard prevents the
burner to be turned on when there is water
shortage.
Temperature stop for exhaust gases
The temperature stop switches off the ma-
chine when the waste gases have reached
very high temperatures.
Winding protection contact
The winding protection contact in the motor
winding of the pump drive switches off the
engine when there is a thermal overload.
Safety catch
The safety catch on the trigger gun pre-
vents the appliance from being switched on
unintentionally.

Start up

WARNING
Risk of injury! Device, tubes, high pressure
hose and connections must be in faultless
condition. Otherwise, the appliance must
not be used.
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