Operating manual Hot Water High-Pressure Cleaners Read and conform safety instructions before use ! - GB -
Description of appliance 5 12 7 6 3 11 2 4 9 8 10 1 2 3 4 5 6 7 Water inlet connection with filter Power cable Winder for cable Suction hose for detergent Hose drum (option) Spray gun Spray pipe attachment 14 1 8 9 10 11 12 13 14 13 Storage bin for spray gun and pipe Brake Storage bin for accessories Fuel tank Filler aperture for fuel High pressure outlet Fuel drainage screw Master switch (appliance ON-OFF) Heating switch (burner ON/OFF) Brief operating instructions Pressure gauge – water pr
Contents Page 3 Description of appliance.............................................................................................................2 Contents . .........................................................................................................................3 Tecnical data . .........................................................................................................................4 Overview “This is what you have purchased”...........................................
Tecnical data therm 635-1 therm 875-1 Operating pressure, continuously adjustable 30 - 130 bar 30 - 170 bar Admissible overpressure 145 bar 190 bar Water output Qmax 635 l/h 875 l/h Nozzle size, flat jet nozzle D25045 D25045 Hot water output temperature (water supply 12 °C) max. 80 °C max. 80 °C Steam level max. 140 °C max. 140 °C Heating oil jet - Oil pressure 1,35 Gph-10 bar 1,5 Gph-10 bar Heating oil consumption at max.
therm 895-1 therm 1165-1 therm 1525-1 Operating pressure, continuously adjustable 30 - 195 bar 30 - 165 bar 30 - 125 bar Admissible overpressure 210 bar 180 bar 140 bar Water output Qmax 895 l/h 1165 l/h 1500 l/h Nozzle size, flat jet nozzle D25045 D2507 M20125 Hot water output temperature (water supply 12 °C) max. 80 °C max. 80 °C max. 60 °C Steam level max. 140 °C max. 140 °C max.
This is what you have purchased 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 steelweave high-pressure hose NW 8 2. Safety spray gun with insulated handle and screw connection 3. Lance with flat-jet nozzle 4. Holding devices for cable with screws 5. Water intake filter + 6.
General rules 7 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 54 - 55.
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.
Safety notes - This is prohibited! 9 Never direct the high-pressure water jet towards the operator him-/herself or towards other persons, not even for cleaning clothing or shoes.
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.
Please note - important! 11 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.
Kränzle technology 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.
Kränzle technology 13 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.
Kränzle technology Thermostat The thermostat controls the spray water temperature. After you switch on the device, "888" 1 appears in both displays for approx. 1 second as a test of the functioning of the 2 displays. The thermostat also monitors the minimum fuel level in the tank with a floating switch. If the level is below the minimum amount, the thermostat switches the oil burner off and the "OIL" sign flashes in the set temperature display (Pos. 1).
Kränzle technology 15 The innovative new percent mode now lets the user specify the switching duration of the heater in percent using the "+" and "-" buttons (Pos. 3+4) (100% being the max. temperature) rather than setting the desired temperature. Now the result of the setting must be checked by using the "Actual" temperature display. If the desired temperature has not yet been reached, the percentage must be increased.
Heat exchanger The water is forced through a heating coil by the high pressure pump. Heating coil: 38 m long - Content: 5 l of water - Heating capacity: max. 90 kW The fuel pump draws the oil from the tank through a filter and pumps it to the injector nozzle. The oil pressure is shown on the fuel manometer. The heat exchanger is heated by a high pressure fan heater.
Commissioning 17 1. Install holding devices for power cable. 2. Install water inlet filter. 3. Fill fuel tank with fuel. (Light heating oil EL DIN 51 603 or diesel fuel) Max. quantity 25 litres. 4. Check water inlet filter for cleanliness prior to putting the machine into operation! Unscrew glass body of the inlet filter and check if metal sieve is soiled. 5. Each time check oil! Do not start the machine if there is no oil visible on the oil clipstick. Refill with oil if necessary. See page 23 6.
7. Move machine to job site. Kränzle-therm appliances are movable machines with a sturdy chassis. 8. Steering the machine: To change direction tilt machine by pressing a foot against the footrest and pull the handle at the same time. Then turn machine into desired direction. 9. Connect machine to water mains (2 - 8 bar pre-pressure). Inside diameter of hose minimum 1/2 ". The water storage tank is filled with water. The float valve shuts the water intake as soon as the tank is full. 10.
Commissioning 19 13. Push on HP hose to gun. 14. Screw together HP hose and gun pressure-tightly. Take care that all screw connections are pressure-tight. A leakage of gun, high-pressure hose or hose drum has to be repaired at once. Leakages lead to an increased wear and to a possible malfunction of the delayed motor cut-out. Usage as a cold water high-pressure cleaner 1. Ignition switch to -OFF- position Detergent valve must be closed! (Turn knob to extreme right position "close") 2.
Usage as a hot water high pressure cleaner Method same as with cold water high-pressure cleaner, then ... 1. Set desired temperature at the thermostat. (Min. temperature 40 °C) 2. Engage fixing brake before starting the cleaning process! 3. Switch on main switch with disen gaged spray gun. Vent high-pressure cleaner: Pull and release trigger of spray gun various times. Detergent valve must be closed! (Turn knob to extreme right position "close") 4. Start ignition.
Suction of detergents 21 with detergent supply from the suction side: Detergent injection on the pressur side, as you probably know it from other HP cleaners, consume approx. 30 % of the cleaning energy, no matter if they are used or not. Due to the water tank fitted to the Kränzle therm cleaners it is now possible to directly suck the detergent into the pump thus reducing output loss and increasing the efficency considerably. The detergents are applied without having to reduce the working pressure. 1.
Decommissioning - frost protection 01. Switch off the machine - main switch to „0“- position 02. Cut off the water supply 03. Open the spray gun briefly until the pressure is released 04. Apply the safety catch on the spray gun 05. Remove the water hose and spray gun 06. Drain the pump: switch on the motor for approx. 20 seconds 07. Pull the plug from the socket 08. Clean HP hose and wind up; fix drum 09. Clean power cable and wind up 10.
Care and Maintenance 23 The machine must be disconnected from the power supply when servicing work is being carried out. The main switch should be in position "0" and the plug out of the socket. Weekly, or after approx. 40 hours of operation: - Check the oil level of the high pressure pump. If the oil level is too low, add oil until the oil level is between the two markings on the oil measuring rod. Change the oil if it has a grey or whitish appearance. The oil should be disposed of responsibly.
Changing the oil: First oil change after approximately 50 operating hours. Thereafter the oil should be changed every 500 operating hours or yearly. Take the oil drainage hose, which is connected to the oil drainage screw from the inside of the appliance. Open the red oil filler plug at the top side of the black oil housing. Open the cap at the end of the hose. Drain off the oil into an oil pan and dispose of it responsibly. Close the end of the hose. Refill with new oil.
Care and Maintenance 25 5. Hold the gun in a separate container and press the trigger. 6. Wait for about a minute until the decalcifier comes out of the gun (recognisable by its whitish colour) 7. Switch off the machine and allow the solution to act for about 15-20 minutes. 8. Switch the machine back on and rinse it through with clear water for about 2 minutes. 9. Now check whether pipeline resistance is back to an acceptable level.
Particular rules, directives and inspections Inspections performed by Kränzle - measurement of earth line resistance - measurement of voltage and current - inspection of tension consistency with +/- 1530 V - pressure check of heating coil at 300 bar - visual and functional check as per the inspection sheet provided - exhaust fume analysis (see test strips provided) Guidelines for liquid sprayers The machine conforms with the "Guidelines for liquid sprayers".
Pipeline plan 27 High pressure connection Detergent Water inlet Safety valve, number 5 must be set approx. 15 % higher than the unloader valve on the HP pump.
Sensor Excess temp.
Sensor Excess temp.
Troubleshooting Malfunction Cause of malfunction / remedy Water supply Water tank runs over. Water tank does not fill completely. Pump does not suck. Test: check water and chemical system for tightness. Float valve is dirty or defect. Float valve is defect. Water filter is dirty. Insufficient water inlet quantity. Valves stick or are dirty. Suction hose leaks. Chemistry valve is open or leaks. Check hose clips (connections). High-pressure nozzle is clogged.
Troubleshooting 31 Displayed malfunctions DISPLAY Cause Action TARGET ACTUAL Err OFF AUS E7 Appliance has not been operated for more than 20 minutes -> Safety cut-off Switch main switch „OFF“ and then back „ON“ again. Err E2 Temperature sensor defective Replace temperature sensor FLA E8 Warning Flame monitoring; No combustion was detected by the flame sensor after 2s Check flame sensor; Check combustion system Switch main switch „OFF“ and then back „ON“ again.
Troubleshooting Hot water mode The fuel manometer shows the fuel pressure. If no pressure is shown, check if - there is heating oil in the tank. - the fuse in the electric box (below the operating panel) for the motor has blown. - the fuel sieve or the fuel sieve in the pump is dirty. - the fuel pump does no operate smoothly or is blocked. - the ventilator jams. The thermostat grants permission to open the solenoid valve. The burner starts and heats the water to the temperature preset by you.
Troubleshooting 33 Malfunction Cause of malfunction / remedy Heating (burner) Fuel pump/blower operates, but burner does not heat. Set water temperature is reached. Increase temperature on thermostat with rotary control switch. Open gun, until temperature drops. Fuel tank is empty. Fuel filter is dirty. Fuel nozzle is dirty. Fuel pump/blower does not operate. Coupling between burner motor and fuel pump is defect. Blower/fuel pump motor is defect. Check - Pump makes loud noises electrical equipment.
Small repairs do it yourself No water from the nozzle but the gauge shows full pressure: Most likely the nozzle is blocked. (Inside the pressure gauge there is no water but a filling with glycerin to damp the vibration of the pointer.) Proceeding: Switch off the cleaner. Pull plug from the socket. Operate gun seveal times to decrease the pressure. First unscrew gun and lance, then rinse hose from any residues. Check water inlet filter for soiling.
The pressure gauge shows full pressure although the gun has been closed. The pressure switch valve switches constantly. Possible cause no.1: Leakage Having closed th gun, the HP cleaner must shut down and the pressure gauge must show „0“ bar. If the pressure gauge still shows full pressure and the motor constantly switches on and off, the possible reason for this can be a leakage of the pump, the HP hose or the lance.
Possible cause no. 2: The non-return valve is soiled or defective Proceeding: Unscrew pump outlet. Take out non-return valve body and check for soiling or damage of the O-ring. Replace non-return valve if necessary. There is no guarantee if the pump is damaged by defective O-rings due to air induction or lack of water (cavitation).
Small repairs do it yourself 37 Pressure gauge shows little pressure, the water from the nozzle comes in squirts, The high-pressure hose vibrates. Most likely the valves are soiled. Proceeding: Unscrew all 6 valves, one after the other (hexagonal brass screws, 3 in a row, vertically and horizontally) Take out valve body (with green or red plastic coating) and O-ring by means of needle nose pliers. Check O-ring for damage. In case of a damage the O-ring has to be replaced.
Inspection report for HP cleaners Inspection report on annually carried out Labour Safety Inspection (UVV) according to the Guidelines for Liquid Spray Equipment.
Inspection report for HP cleaners 39 Inspection report on annually carried out Labour Safety Inspection (UVV) according to the Guidelines for Liquid Spray Equipment.
EC declaration of conformity Hereby we declare that: technical specifications available from: Nominal flow comply with the following guidelines and their amendments for high-pressure cleaners: Kränzle therm 895-1, 1165-1 Manfred Bauer, Fa. Josef Kränzle Rudolf-Diesel-Str.
Guarantee 41 The guarantee is only valid for material and manufacturing errors. Wearing does not fall within this gurantee. The instructions in our operating manual must be complied with.. The operating instructions form part of the guarantee. The Guarantee is void if other parts are used than genuine Kränzle accessory parts or genuine Kränzle spare parts. For high-pressure cleaners sold to the user the guarantee period is 24 month.
Inspection sheet Kränzle therm Customer All lines connected Hose clamps tight Screws all installed and tightened Ignition cable plugged in Visual check carried out Brake function checked Leak test Water tank filled and checked Water inlet checked for tightness Float valve function checked Machine checked for tightness under pressure Electrical check Earth line checked Current intake Operating pressure Switch-off pressure
Steam phase checked Result of flue gas analysis Chemical valve checked Start/Stop automatic and re-run delay checked Fuel shortage switch checked Thermostat function checked Burner function checked Water inlet temperature 5 6 7 8 9 10 11 12 13 14 15 °C Water outlet temperature 70 72 74 76 78 80 82 84 86 88 90 °C Fuel pressure bar 9 9,5 10 10,5 11 11,5 12 12,5 13 13,5 14 bar Measured smoke spot number 0 1 2 3 Safety equipment sealed with lacquer The appliance fulfills all requirements according t
I. Kränzle GmbH Elpke 97 D - 33605 Bielefeld Reprint only allowed with the authorization of Kränzle. As date of 03.09.2012 Subject to technical modifications. Order no. 30.768 0 Kränzle - world-wide: Te c h n i c a l p e r f e c t i o n a t i t s b e s t .
