Kranzle Therm 870-1, therm 635-1, therm 875-1, therm 895-1, therm 1165-1 Operating Manual
...
DIN EN
ISO 9001
Operating manual
Hot Water High-Pressure Cleaners
Read and conform safety instructions before use!
- GB -
2
therm 870-1
Operating pressure,
continuously adjustable
30 - 170 bar
Admissible overpressure 190 bar
Water output Qmax 870 l/h
Nozzle size, flat jet nozzle
D25045
Hot water output temperature (water supply 12 °C)
max. 80 °C
Steam level max. 140 °C
Heating oil jet - Oil pressure
1,5 Gph-10 bar
Heating oil consumption
at max. heating output
5,3 kg/h = 6,3 l/h
Heating output 55 kW
Exhaust gas mass flow 0,035 kg/s
Fuel tank 25 l
High pressure hose for
machines without hose
drum
10 m
High pressure hose for
machines with hose
drum
20 m
Connected load
400 V, 8,7 A, 50 Hz
Power input P 1 - 4,8 kW
Power output P 2 - 4,0 kW
Weight 220 kg
Dimensions without
reel, L x W x H in mm
1050 x 800 x
1000
Sound level acc. to DIN
45 635
86 dB (A)
Guaranteed sound level L
WA
89 dB (A)
Vibrations at lance ca. 21 N
Recoil at lance
2,2 m/s
2
Order No.
without hose drum
41.340
Order No.
with hose drum
41.340 1
Tecnical data
Permissible tolerance for figures ± 5 % in acc. with VDMA uniform sheet 24411
Tecnical data ..........................................................................................................................2
Contents ..........................................................................................................................3
Overview “This is what you have purchased” ............................................................................4
Description of appliance ............................................................................................................5
General rules ..........................................................................................................................6
Safety precautions – accident prevention ..................................................................................7
That's what you have to observe ...........................................................................................9
Kränzle- technology ...............................................................................................................10
Water and cleaning system .............................................................................10
Lance and spray gun ...................................................................................... 11
High pressure hose and spray device ............................................................. 11
Total stop system ............................................................................................12
Pressure control valve – safety valve .............................................................12
Motor protecting switch ..................................................................................12
Thermostat ......................................................................................................12
Heat exchanger ...............................................................................................13
Commissioning ......................................................................................................................14
Usage as a cold water high pressure cleaner .................................................16
Usage as a hot water high pressure cleaner ..................................................17
Steam level .....................................................................................................17
When using detergents ...................................................................................18
Decommissioning - frost protection ..........................................................................................19
Care and Maintenance (weekly/yearly) ..................................................................................20
Changing the oil ..............................................................................................21
Decalcifying the heating coil ...........................................................................21
Fuel System ....................................................................................................22
Ignition electrodes ........................................................................................... 22
Particular rules, directives and inspections ..............................................................................23
Circuit diagramme ....................................................................................................................24
Troubleshooting .....................................................................................................................26
Pipeline plan ........................................................................................................................33
Inspections – inspection reports ..............................................................................................34
EG – Declaration of Conformity ............................................................................................... 36
Guarantee ........................................................................................................................37
Inspection sheet .......................................................................................................................38
3
Contents
Page
1.
Kränzle high-pressure cleaner therm
with hose drum and 20 m steel-weave
high-pressure hose NW 8
or
Kränzle high-pressure cleaner therm
without hose drum but with 10 m steel-
weave high-pressure hose NW 8
2.
Safety spray gun with insulated handle
and screw connection
6.
Operating manual + Spare parts list
4.
Holding devices for cable with screws
5.
Water intake filter
3.
Lance with flat-jet nozzle
+
4
This is what you have purchased
1 Waterinletconnectionwithlter
2 Power cable
3 Winder for cable
4 Suction hose for detergent
5 Hose drum (option)
6 Spray gun
7 Spray pipe attachment
5
Description of appliance
Master switch (appliance ON-OFF)
Heating switch (burner ON/OFF
)
Brief operating instructions
Pressure gauge – water pressure
Digital thermostat for adjusting
water temperature
Pressure gauge - fuel
8 Storage bin for spray gun and pipe
9 Brake
10 Storage bin for accessories
11 Fuel tank
12 Filler aperture for fuel
13 High pressure outlet
14 Fuel drainage screw
5
9
1
13
2
4
6
7
8
10
12
3
11
14
Range of application
This machine may only be used for cleaning facades, vehicles, containers, pavement
slabs, stables, machines and smilar objects.
Inspections
The machine must be inspected according to the “Guidelines for Liquid Spray Devices”
at least once every 12 months by a qualified person, to ensure that continued safe
operation is guaranteed. The results of the inspection are to be recorded in writing. This
may be done in any form. For inspection reports see pages 34 - 35.
High-pressure cleaners used for commercial purposes have to be
checked by a qualified person at least every 12 months!
Accident prevention
The machine is designed for accidents to be impossible (if used according to these
instructions). Please read safety notes included in these instructions carefully before
using the machine and act correspondingly. Operating staff has to be instructed according to this manual. The “Guidelines for Liquid Spray Devices” must be complied with.
Setting up - Location
Neither set up and operate the machine in rooms where there is a risk
of fire or explosion nor put it into puddles. Do not use the machine
under water.
During the combustion process air is needed and exhaust gas emerges. If the
machine is operated in a confined space, precautions have to be taken to safely
exhaust the fumes. Furthermore a sufficient ventilation has to be provided for.
Never shut the exhaust gas outlet on top of the machine. Never stoop over this
aperture and never reach into it. Emerging gases are extremely hot!
Do not jam the trigger of the gun during operation!
When carrying through service and maitenance tasks the machine has to be cut off
the power supply system. Put main switch to "0" and pull plug out of socket.
Never operate the machine if cables or other safety-relevant parts (e.g. excess pressure valve, high-pressure hose, spraying devices, etc.) are defective.
6
General rules
Safety notes
7
Safety notes
Never operate the machine without supervision.
The machine may only be operated by persons who have been instructed accordingly.
Some parts inside the machine, all water conducting components and all metal parts
of gun and lance are hot during hot water operation. Keep all hoods and protective
covers closed during operation and never touch any metal parts of gun or lance.
Persons operating the machine should wear the necessary protective clothing, i.e.
waterproof clothing, rubber boots, safety goggles, headwear etc. It is prohibited to
use the machine in close vicinity to people lacking suitable protective clothing.
The high pressure spray can generate a high level of noise. If noise exceeds the
maximum allowed levels, users and others in the vicinity must wear suitable ear
protection
.
Do not spray against matter containing asbestos or other hazardous substances.
Only use light heating oil EL (DIN 51 603) or diesel (DIN EN 590). The use of any other
fuel may be hazardous and dangerous (risk of explosion).
For safety reasons always switch the main switch to "0"- postion after having finished the cleaning task (disconnection from power supply).
Bear in mind that during cleaning tasks
with a high-pressure water jet a significant
recoil at the lance arises (see technical
data on page 2).
Apply the safety catch on the spray gun
after each use, in order to prevent
unintentional spraying!
Always aim the underbody lance! Bear in
mind when using a curved or angled
spraying lance that there is a significant
amount of torque in the recoil!
8
Safety notes - This is prohibited!
Never allow children to use the high
pressure cleaner!
Never direct the water jet at the
machine itself!
The machine may not be placed within
reach of the water jet spray mist!
Never direct the water jet at a power
socket!
Never direct the high-pressure water jet
towards the operator him-/herself or
towards other persons, not even for
cleaning clothing or shoes.
Never direct the water jet at animals!
Only use power cables which are in
perfect working order! Do not damage
the power cable or repair it incorrectly!
Never pull the high pressure hose if it
has formed kinks or “nooses”!
Never pull the hose over sharp edges!
9
Please note - important!
Lack of water
Lack of water occurs more often than you
probably believe. The more powerful a
high-cleaner is the greater is the danger
that a lack of water occurs. If there is only
an insufficient amount of water available,
cavitation arises inside the pump, which is
normally noticed too late or even not at all.
The pump will be destroyed!
Please check the available quantity of
water by filling a bucket with litre scale for
half a minute
.
Required minimum quantities: see technical data
If the metered quantity of water is too small, you have to use a
different water connection, guaranteeing the necessary output.
Lack of water leads to an accelerated wear of the joints (no
guarantee)
Connection to water supply
Please pay attention to the regulations of your waterworks company! In accordance
with DIN EN 61770, the machine may not be directly connected to the public drinking
water supply lines. A brief connection however is permissible according to DVGW
(German Association for Gas and Water Affairs) if a tube ventilator with check valve
(Kränzle Order-No. 41.016 4) is built into the water supply. Also indirect connection to
the public drinking water supply lines is permissible by way of free emission in
accordance with EN 61 770; e.g. by using a reservoir with a float valve.
Direct connection to a non-drinking water supply line is permissible.
10
Please note - important!
Insufficient quantity of electricity
If there are too many collectors in your
proximity connected to the network at the
same time, the available voltage and the
current intensity may decline.
Consequently the motor of the high-pressure cleaner does not start or even blows.
The power supply may also be insufficient
if the power cable is too long or too thin. If
extension cables are too long, this may
lead to a voltage drop causing
malfunctions or start-up difficulties
Electrical connection
The machine is supplied with an electrical power cable with plug. The mains plug must
be fitted to a standard grounded socket with a 30 mA residual current operated device.
The socket must be protected with a 16A delay action fuse on the mains side. When
using an extension cable, this must have an earthed lead which is properly connected to
the socket. The conductors in the extension cable must have a minimum cross section of
1.5 mm². Plug connections must be of a spray-proof design, and may not be located on
a wet floor. With extension cables of more than 10 m the minimum cross section must
be 2.5 mm! When using a cable drum, always keep the cable wound as far as possible
.
Check the line fusing and have the voltage and the available current
intensity checked by an expert in case of uncertainty.
Water and Cleaning System
The water is fed to the high-pressure cleaner under pressure (2-8 bar pre-pressure). A
float valve regulates the water flow in the storage tank. Then the water is sucked directly
from the storage tank by the high-pressure pump and forced with the adusted pressure
through the heat exchanger to the safety spray lance. The high pressure jet is formed by
the nozzle at the end of the safety lance.
Environmental, refuse disposal and water protection regulations
must be observed!
Kränzle technology
11
Kränzle technology
Lance with trigger gun
The machine can only be operated when the safety trigger is squeezed. When the lever
is squeezed, the spray gun opens. The liquid is then pumped to the nozzle. The spray
pressure increases and quickly reaches the selected operating pressure. When the trigger is released, the trigger gun closes and any further spraying of liquid from the lance is
stopped. The motor stops.
When actuating the gun once more the pressure control valve - safety valve closes and
the motor is started again. The pump resumes feeding water to the spraying lance with
the selected operating pressure. When the gun is closed, the water hammer opens the
pressure control valve - safety valve and the motor is switched off by the pressure
switch.
The trigger gun is a safety device. Repairs should only be performed
by qualified persons. Should replacement parts be required, use only
components authorized by the manufacturer.
High pressure hose and spraying device
The high pressure hose and spraying device supplied with the machine are made of high
grade material, they are also optimized for the machine and marked as required by the
appropriate regulations.
If replacement parts are required, only such parts that are authorized by the manufacturer and which bear the markings required by the appropriate regulations may be used.
The high pressure hose and spray device must be connected in a pressure-tight
manner.
The high pressure hose may not be driven over, pulled excessively, or twisted. The
hose may under no circumstances be pulled over sharp edges, since otherwise the
guarantee is automatically void.
Hoses are wearing parts. The guarantee only covers defects of fabrication no
external damages whatsoever.
Defective high-pressure hoses and spraying devices may not be repaired. They
always have to be replaced.
12
Kränzle technology
Pressure control valve-safety valve
The pressure control valve allows full adjustment of the quantity and pressure of the
water. The safety valve protects the machine from excessive pressure and cannot be
adjusted beyond the admissible operating pressure. The setting nuts are sealed with
lacquer.
Replacements, repairs, new adjustments and sealing operations may
only be performed by trained personnel.
Motor protection switch
The pump motor is protected from overload by a motor protection switch, which cuts out
the motor in the event of overload. To start the motor again the main switch has to be
switched off and then on again. However should the switch trip frequently, the cause of
the malfunction should be located and rectified.
Replacements and inspection work should only be performed by
qualified persons when the machine is disconnected from the power
supply, i.e. with plug pulled out from the electrical socket.
Total stop system
The machine is fitted with a Total-Stop-System. If the gun is closed for longer than
approx. 20 seconds, the machine switches off automatically, after 20 minutes the
machine moves to safety switch off and you must use the main switch to turn it back on.
The machine restarts automatically when the gun is operated, provided that the master
switch is on.
Thermostat
The thermostat with rotary control
switch controls the temperature
of the spray water.
Use the rotary control switch to
adjust the desired water
temperature.
Thermostat with
rotary control switch
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