Equipment Features
HDS Middle Range / HDS Premium Range
Page 6 / 127
Service Manual 04.2008
General:
Mobile hot water high-pressure cleaner with
various power ratings for commercial use.
– High-performance burner with vertical heat-
ing coil and continuous ignition.
– Integrated scale inhibitor.
– Steam operation (water temperatures up to
155 °C) with separate steam nozzle.
– Burner fan and fuel pump directly on the elec-
tric motor.
Unit connected load:
– 3.4 kW (HDS 7/12-4 M/MX).
– 5.5 kW (HDS 8/17-4 M/MX).
– 6.4 kW (HDS 9/18-4 M/MX).
– 7.8 kW (HDS 10/20-4 M/MX).
– 8.4 kW (HDS 12/18-4 S/SX).
– 9.3 kW (HDS 13/20-4 S/SX).
Pump:
– 3 piston axial pump with stainless steel pis-
tons, with ceramic coating in several models.
– Cylinder head made of brass.
– High-pressure and suction valves made of
stainless steel.
– Working pressure: 3-20 MPa (30-200 bar).
– Water volume: 350-1300 l/h.
– With pressure gauge.
– Overflow valve with pressure and flow control
valve.
– Float tank.
– Safety valve.
– Fine water filter.
Electronics:
– Program switch.
– Flame sensor (optional).
– Water temperature control with temperature
sensor.
– Exhaust temperature limiter.
– Low-water protection.
– Dry running protection for pump.
– Level sensor for fuel, scale inhibitor and clean-
ing agent tanks (partly optional).
– Operating hours counter.
– Fault memory.
– Component check.
– Fault monitoring.
– Rotary direction monitoring.
Cleaning agent:
– 2 cleaning agent tanks.
– Cleaning agent suction with fine filter.
– Metering valve on unit with automatic rinsing
in neutral position.
– Cleaning agent operation with low pressure
and high pressure.
Accessories:
– Rotary control for pressure and flow control
valve
– Softgrip easy-press handgun
– Stainless steel spray lance, rotatable
– Power nozzle (25°), (stainless steel)
– Steam nozzle (brass)
1.1
Technical Features