36
English
5.906-590.0 Rev. 01 (05/17)
From the fresh water container, water is pumped into the
steam boiler using the boiler pump.
The water is heated.
When operating the steam switch on the handle, the
valves on the steam boiler open.
The steam flows through the socket into the connected ac-
cessory.
The steam boiler temperature is monitored. The steam
boiler is switched off by the pressure switch when the nom-
inal pressure has been reached.
A pressure relief valve protects the steam boiler. Over-
pressure media (water / steam) are dissipated via a hose
and a drilled hole in the base support.
As long as the suction mode is switched off, both heaters
will run (2kW & 1kW), USA device (1.2kW & 0.4kW). If the
suction turbine is switched on, the 1kW heater will switch
off. This ensures a higher network utilisation during the
pure steam operation.
1 Solenoid valve
right
2 Water pump
3 Solenoid valve
left
4 Boiler pump
If cold water is set at the handwheel, the water pump will
deliver water through the steam hose and to the connected
up accessories in combination with the right-hand solenoid
valve.
If warm water is set at the handwheel, the water pump will
deliver water, which is mixed with steam from the boiler in
order to heat it up, in combination with the right-hand sole-
noid valve. To do that, the left-hand solenoid valve on the
boiler opens.
The water/chemical pump only delivers chemicals if the
detergent/vacuuming operation operating mode has been
selected on the control panel rotary switch.
The left-hand solenoid valve is opened in this selection po-
sition.
030 Function
