HDS 12 14-4 ST GAS - Pressure washer KARCHER - Free user manual and instructions

USER MANUAL HDS 12 14-4 ST GAS KARCHER

HDS 12/14-4 ST Gas I 2E (r), I

Symbols in the operating instructions Danger Immediate danger that can cause severe injury or even death. 몇 Warning Possible hazardous situation that could lead to severe injury or even death. Caution Possible hazardous situation that could lead to mild injury to persons or damage to property. Symbols on the machine High-pressure jets can be dangerous if improperly used. The jet may not be directed at persons, animals, live electrical equipment or at the appliance itself. General notes on safety

Environmental protection Please follow the national rules and regulations for fuel spray jets of the respective country. Please follow the national rules and regulations for accident prevention of the respective country. Fuel 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. If the plant is operated in rooms, then there should be adequate measures for safely diverting the exhaust gases out of the room (smoke gas pipes without draught interceptors). Further, there must also be adequate supply of fresh air. Please follow the safety instructions which are attached to the used detergents (normally on the packing label). Statutory Requirements, Guidelines and Rules The packaging material can be recycled. Please do not throw the packaging material into household waste; please send it for recycling. Old appliances contain valuable materials that can be recycled; these should be sent for recycling. Batteries, oil, and similar substances must not enter the environment. Please dispose of your old appliances using appropriate collection systems. Please do not release engine oil, fuel oil, diesel and petrol into the environment Protect the ground and dispose of used oil in an environmentally-clean manner. Kärcher detergents are easy-to-dispose. This means that the functioning of an oil separator is not hampered. Please find a list of recommended detergents in the chapter "Accessories". Notes about the ingredients (REACH) You will find current information about the ingredients at: www.kaercher.com/REACH

Before installing the machine, it is necessary to get the approval of the gas supply company and the local chief chimney cleaner. The statutory requirements of civil engineering laws, trade laws and emission control norms must be followed at the time of installation. We wish to bring to your notice the following statutory regulations, guidelines and standards: – The device may only be installed by a specialized company according to the national regulations. – All national laws and regulations about installation of electrical appliances must also be followed. – All national laws and regulations about installation of gas appliances must also be followed. – Installation of gas pipes - especially the gas connections to the machine - should only be done by a technical company that has been approved by the Industrial Association for Gas and Water Installations. – Only Customer Service engineers trained by Kärcher may perform settings and carry out maintenance tasks and repairs. – The local guidelines must be followed while installing the chimney.

Work-stations Safety Devices The work station is located at the operating field. Depending on the plant installation, other work-stations are located at the accessories (spraying units) that are connected to the feeder points. Safety devices serve for the protection of the user and must not be put out of operation or bypassed with respect to their function. Personal safety gear Wear ear plugs to protect your ears against hearing loss while cleaning parts that produce high sound levels.

Wear protective clothing and safety goggles to protect against splash back containing water or dirt. Proper use The machine is used for removing dirt from surfaces using a freeflowing water jet. It is mainly used for cleaning machines, vehicles and facades. Danger Risk of injury! Follow the respective safety regulations when operating at gas stations or other dangerous areas. Please do not let mineral oil contaminated waste water reach soil, water or the sewage system. Perform engine cleaning and bottom cleaning therefore only on specified places with an oil trap. Safety mechanism against lack of water in swimmer tank The safety mechanism against lack of water prevents the high pressure pump from being switched on when there is no water. Safety mechanism against lack of water in safety block The safety mechanism against lack of water prevents the heater from over-heating when there is no water. The burner operates only when there is adequate water supply. Pressure switch The pressure switch switches off the machine when the working pressure is exceeded. Do not change the setting. Safety valve The safety valve opens when there is a problem in the pressure switch. This valve is set and sealed in the factory. Do not change the setting. Flame monitoring In case of fuel shortage or problems with the burner, the flame monitor switches off the burner. The indicator lamp Burner failure (E) glows. Over-current protection Function

Cold water reaches the swimmer tank via the engine cooling hose and from there it reaches the outer jacket of the continuous heater and then the suction side of the high pressure pump. The water softening agent is added in the swimmer tank. The pump transports the water and the sucked detergent through the continuous heater. The proportion of detergent in the water can be adjusted using the dosing valve. The continuous heater is heated by a gas heater. The high pressure outlet is connected to a high pressure network existing in the building. The hand-spray gun is connected to the feeder points of this network using a high pressure hose. If the burner engine is blocked, the switch for protection against over-current gets released. The engine of the high pressure pump is protected through an engine protection switch and a winding protection switch. Exhaust thermostat The exhaust thermostat is triggered when the exhaust temperature exceeds 320 °C. The indicator lamp exhaust gas thermostat (K) glows. Temperature controller The maximum temperature controller in the boiler floor (> 80 °C) and the water outlet (> 110 °C) will get triggered and the indicator lamp for boiler interruption (E) will glow. Exhaust pressure switch The exhaust pressure switch will switch off the burner when the exhaust gas system has reached abnormally high counter-pressure levels, for e.g. when there is a blockade. Pressure release in the high pressure system When the machine is switched off using the hand-spray gun, a solenoid valve installed in the high pressure system opens when the operations stand-by time has elapsed; this causes the pressure to fall.

Burner Manometer Fresh water inlet with sieve High-pressure outlet Gas connection Detergent suck hose I Detergent suck hose II (optional) Softener container Power supply Float tank Operating field Operating field Figure 2

Power switch Temperature controller Dosage valve I for detergent Dosage valve II for detergent (optional) Indicator lamp burner failure “Ready for use” indicator lamp

Indicator lamp for engine over-heating Indicator lamp for protection against calcification Unlocking key for gas relay Unlocking key for exhaust gas thermostat Indicator lamp for exhaust gas thermostat

The operating elements for the cleaning process are yellow. The controls for the maintenance and service are light gray. Start up 몇 Danger Risk of injury! Device, tubes, high pressure hose and connections must be in faultless condition. Otherwise, the appliance must not be used. Power connection

For connection values, see technical data and type plate. The electrical connections must be done by an electrician according to IEC 60364-1. Operation Safety instructions The operator must use the appliance correctly. When working with the appliance, he must consider the local conditions and pay due care and attention to other persons, in particular children, who are nearby. Never leave the appliance unattended when it is in operation. Danger – Danger of scalding by hot water! Do not direct the water jet on persons or animals. – Risk of burns on account of hot surfaces! Do not touch uninsulated pipes and hoses when hot water operations are on. Hold the jet pipe only at the handles. Do not touch the exhaust holder of the continuous heater. – Risk of poisoning or itching on account of detergent! Follow the given instructions for using detergents. Store detergents safely and protect them against access by unauthorised persons. Danger Risk to life on account of electric shock! Do not direct the water jet on the following equipment: – Electrical appliances and plants, – the unit itself, – all electricity-carrying parts in the working area.

Risk of injury! The recoil pressure of the spray pipe can throw you off-balance. You may fall. The spray jet can fly off and cause damage to persons. Search a secure place to stand and hold the gun firmly. Never hold on tightly to the lever of the hand spray gun. – The jet must not be directed at other persons or directed by the user at him/herself to clean clothing or footwear. – Risk of injury from parts flying off! Flying-off fragments or objects can injure people or animals. Never direct the water jet on fragile or loose objects. – Risk of accident on account of damage! Clean tyres and valves from a minimum distance of 30 cm. 몇 Warning Danger from substances that are harmful to health! Do not spray the following materials as they can swirl up substances that are harmful to health: – Materials containing asbestos, – Materials that could contain substances harmful to health. Danger – Risk of injury on account of the emanating water jet that could be hot! Only original Kaercher high pressure hoses are optimally suited for the plant. No guarantee can be given if you use any other hoses. – Detergents can prove to be a health hazard! If any detergents are added, the water let out of the plant is not of potable quality. – Risk of hearing impairment while working on noise-making parts! If so, wear ear plugs.

Making the plant ready for operations Danger Risk of injury on account of the emanating water jet that could be hot! Danger Check the high pressure hose for damage before every use. Please arrange for the immediate replacement of a damaged high pressure hose. Check high pressure hose, pipe connections, fittings and water jet for damage every time before use. Check hose coupling to ensure that it sits firmly and is leakproof. Caution Risk of damage on account of dry running. Check filling level of the detergent container and refill if required. Check softener fluid level and refill if necessary. Switch-off in case of emergency

There is a recoil pressure arising from the water jet that comes out from the spray pipe. The angular spray pipe brings about an upward force.

EN - 4 Turn the appliance switch (A) to "0". Shut off water supply. Activate hand spray gun until device is pressure-less. Close the gas inlet. Set working pressure and flow rate Operating with hot water Danger Scalding danger! Caution Hot water operations without fuel will cause damage to the fuel pump. Ensure adequate fuel supply before starting hot water operations. If required, the burner can also be turned on subsequently. Appliance setting

Symbol "Burner on" Turn the appliance switch (A) to "Burner on". Set the desired water temperature on the thermostat (B). Maximum temperature is 98 °C. Turning the quantity regulation valve in clock-wise direction will result in higher working pressure and larger volume. Turning the quantity regulation valve in an anti-clockwise direction will result in lower workign pressure and smaller quantities. Settings at the Easy press gun (optional) Operations stand-by The appliance will switch off if the lever of the hand-spray gun is released during operations. The appliance will automatically start again when you open the gun again within the stand-by period (2 ... 8 minutes). If the stand-by period is exceeded, the safety time mechanism switches off the pump and the burner. The indicator lamp Operations Stand-by (F) goes off. To restart the appliance, set the appliance switch to "0" and then switch on the appliance again. If the appliance is operated using remote control, the appliance can be restarted by using the corresponding switch of the remote control device.

Selecting the nozzle Vehicle tyres are only cleaned using the flat spray nozzle ((25°) from a minimum spraying distance of 30 cm. The round spray should never be used to clean tyres. The following nozzles can be selected for all other tasks:

Turning the water quantity regulator to the right gives more water flow and higher working pressure. Turning the water quantity regulator to the left gives lesser water flow and lower working pressure. Operating with cold water Open the water supply. Dirt Nozzle strong medium light

Use the following nozzles if the pipe length is more than 20 m or for more than 2 x 10 m high pressure hose NW8: Dirt Nozzle strong medium light

Symbol "Engine on" Pull the lever of the hand-spray gun and set the appliance switch (A) to "1" (engine on). The indicator lamp for operational readiness (F) shows that the appliance is in stand-by mode and ready to be operated.

Detergents simplify the cleaning task. They are sucked in from an external detergent tank. The basic model of the appliance is equipped with a dosing valve (C). A second dosing device (dosing valve D) can also be procured as special accessory. It is then possible to use two different detergents. The dosing quantity is set at the detergent dosing valves (C or D) at the operating panel. The set value corresponds to the percentage share of the detergent. Danger Danger of scalding by hot water. After operation with hot water, the device must be operated with open end handgun with cold water for at least two minutes. After operation with detergent If operating with hot water, set the thermostat (B) to the lowest temperature. Use the appliance for at least 30 seconds without detergent. Turn off the appliance

Turn the appliance switch (A) to "0". Shut off water supply. Activate hand spray gun until device is pressure-less. Secure the hand spray gun using the safety catch so that it doesn't open accidentally. Shutdown The outer scale is applicable while using undiluted detergents (100% CHEM). – The inner scale is appliance while using 1 +3 pre-diluted detergents (25 % CHEM + 75 % water). The following table gives the detergent consumption for the values on the outer scale:

The exact dosing depends on: – Viscosity of the detergent – Suction height – Flow resistance of the high pressure pipe If an exact dosing is required, then measure hte detergent quantity that is sucked in (for e.g. by sucking in from a measurement beaker). Note: For list of recommended detergents refer the chapter "Accessories". If the machine is not to be used for a longer period or if it is not possible to save it in a frost-free environment, then you must take the following measures (see chapter "Maintenance and care"): Drain water. Flush device with anti-freeze agent. Switch off the main switch and secure it or unplug the Cekon plug. Close the gas inlet. Storage Caution Risk of injury and damage! Note the weight of the appliance in case of storage. Transport Caution Risk of injury and damage! Observe the weight of the appliance when you transport it. When transporting in vehicles, secure the appliance according to the guidelines from slipping and tipping over. Refilling the softener Caution There can be calcium deposits in the continuous heater if you use the appliance without softeners. If the softener tank is empty, the indicator lamp for protection against calcification (H) begins to glow. Figure 1 - Pos. 8 Refill the softener tank with softener liquid (RM 110 (2.780001).

190/150 190/150 170/130 170/130 Max. length: 10 n with two 90° arches (min. diameter 100 mm) From the installation room or fresh outside air - depending on the local regulations. Condensate drain-out Condensate drain-out (max.) l/h Connectiing piece Minimum water column, siphon

4 (via siphon into the drainage system) 40 (HTR)

4 (via siphon into the drainage system) 40 (HTR)

4 (via siphon into the drainage system) 40 (HTR)

4 (via siphon into the drainage system) 40 (HTR)

Gastec QA Low NOX I 2E (r), I

Dimensions and weights Length Width Height Typical operating weight Values determined as per EN 60355-2-79 Noise emission Sound pressure level LpA Uncertainty KpA Hand-arm vibration value Hand spray gun Spray lance Uncertainty K

Maintenance and care Danger Risk of injury! The main switch of the vacuum cleaner is to be switched off or the Cekon plug must be unplugged while carrying out any repairs or maintenance jobs. Maintenance schedule Time daily Activity Check handspray gun Assembly affected Hand spray gun Performance Check whether the hand-spray gun closes tightly without any leaks. Check the protection mechanism against accidental switching. Replace defective hand-spray guns. Check high pres- Outlets, hoses towards working Check hoses to see if there are damages. Resure hoses machine place defect hoses immediately. Danger of accident! Check the con- Electrical connection with plug/ Check the connecting line with mains plug for necting line with socket damages. If the power cord is damaged, please mains plug arrange immediately for the exchange by an authorized customer service or a skilled electrician. weekly or after 40 Check oil level Oil tank at the pump If the oil is milky, it needs to be replaced. operating hours Check oil level Oil tank at the pump Check oil level of the pump. Refill oil if required (Order no. 6.288-016) Cleaning the Sieve in water inlet See section "Clean sieve". sieve monthly or after Check pump High-pressure pump Check the pump for leaks. If the leakage is more 200 operating than 3 drops per minute, call Customer Service. hours Check for inter- Entire plant Operate the machine using the spray pipe withnal deposits out the high pressure nozzle. If the operating pressure on the manometer of the machine increases to more than 3 MPa, then the plant needs to be decalcified. The same is applicable when an operating pressure of more than 0.7 - 1 MPa is detected while operating the machine without high pressure pipe (water comes out freely at the high pressure outlet). Cleaning the Sieve in the water shortage See section "Clean sieve". sieve safeguard after 500 - 700 op- Replace Electric igniter, ionisation elec- Replace electric igniter and/or the ionisation erating hours trode electrode. half-yearly or after Oil change High-pressure pump Drain off oil. Fill in 1 l new oil (Order no. 6.2881000 operating 016). Check oil level in the oil tank. hours check, clean Entire plant Visual inspection of the plant, check high pressure connections to see that they are not leaking, check that the over-flow valves are not leaking, check high pressure hoses, check pressure tanks, remove calcium deposits from the heating coil, clean/ replace ionisation electrodes, adjust burner. Replace the Hose to exhaust pushbutton Install new hose. hose switch annual Safety check Entire plant Perform a safety inspection as per the applicable national rules and regulations for liquid spray jets of the respective country.

of whom Operator Operator Operator Operator Operator Operator Operator Operator trained in decalcification Operator Customer Service Operator Customer Service Customer Service Technical expert

Maintenance contract You can enter into a maintenance contract with the concerned Kaercher Sales Office for the machine. Cleaning the sieve Sieve in water inlet Figure 1 - Pos. 3 Shut off water supply. Remove the water inlet hose on the appliance. Push out the sieve from the connection using a screw-driver. Cleaning the sieve Assemble it back in the reverse sequence. Sieve in the water shortage safe guard Remove covering panels. Unscrew the bracket from the safety block.

Note: As an anti-corrosion measure and for neutralising the acid residue, we recommend that you finally pump an alkaline solution through the machine (for e.g. RM 81) via the detergent tank. Frost protection The machine should be stored in frost-free rooms. In case there is frosting risk, for e.g. if the machine is installed in open areas, then the machine must first be emptied and flushed using an antifreezing agent. Drain water Screw off water supply hose and high pressure hose. Operate device for max. 1 minute until the pump and conduits are empty. Screw off supply hose at boiler bottom and drain heating spiral empty. Flush device with anti-freeze agent Note: Observe handling instructions of the anti-freeze agent manufacturer. Fill in normal anti-frost agents in the swimmer tank right until the top. Place the collection trough unter the high pressure exit. Switch on the appliance and let it run until the safety mechanism against lack of water in swimmer tank gets activated and the machine is switched off. Fill the boiler floor and siphon with anti-frost agent. A certain corrosion protection is achieved with this as well.

Turn in screw M8x30 into the sieve. Pull out the screw and the sieve using pliers. Cleaning the sieve Assemble it back in the reverse sequence. Descaling When there are deposits formed in the pipe connections, there is an increase in the flow resistance; this can cause the pressure switch to be triggered. Danger Risk of explosion due to combustible gases! Smoking strictly prohibited during decalcification. Ensure proper ventilation. Danger Risk of burns injury on account of acid! Wear protective glasses and protective gloves. Performance According to statutory requirements, only tested and approv approved boiler decrusting agents may be used. – RM 100 (Order No. 6.287-008) dissolves chalk and simple compounds of chalk and detergents residues. – RM 101 (Order No. 6.287-013) dissolves the deposits that cannot be dissolved using RM 100. Fill a 20 litre container with 15 l water. Add one litre of boiler decrusting agent. Connect the water hose directly to the pump and hang in the other free end into the container. Insert the connected spray pipe without nozzle into the container. Open the hand-spray gun and do not close it during the decalcification process. Switch on the appliance switch to "Burner on" until the temperature of approx. 40 °C is reached. Switch off the appliance and let it stand for 20 minutes. The hand-spray gun must remain opened. Then pump out the machine until empty.

EN - 10 Troubleshooting Danger Risk of injury! The main switch of the vacuum cleaner is to be switched off or the Cekon plug must be unplugged while carrying out any repairs or maintenance jobs. Fault Possible cause Machine is not running; indi- There is no voltage in the machine. cator lamp for operations Safety time switch is on. stand-by (F) is not glowing Remedy Check electrical mains. Switch off the appliance switch briefly and switch it on again. Fuse in the control circuit (F3) has Install a new fuse; if it burns out again, then burnt off. Fuse is located in the remove the cause for the over-loading. control transformer (T2). Pressure switch HP (High presCheck pressure switch. sure) or LP (Low pressure) is defective. Timer module (A1) defective. Check connections, replace if required. + Indicator lamp for engine Thermal sensor (WS) in the engine Rectify cause for over-loading. over-heating (G) is glowing or the over-current protection switch (F1) has got activated. The water shortage safeguard in Remove the water shortage. the swimmer tank has got activated. Burner does not ignite or the Thermostat (B) has been set at a Set the thermostat to a higher level. flame glows off during opera- very low temperature. tion Machine switch is not positioned to Switch on the burner. burner The water shortage safeguard in Ensure adequate water supply. Check mathe safety block has got switched chine for leaks. off. Close the gas valve. Open gas valve. The maximum temperature limiter Let the boiler cool down and restart the appliin the water outlet (> 110 °C) has ance. got triggered. Check thermostat. Indicator lamp for exhaust No gas supply. Open the gas supply. gas thermostat (K) is glowing The incoming supply or exhaust air Check ventilation and exhaust system. outlet has got blocked. Add 5 litre water via the measuring nozzle for Boiler floor is too hot. The maxiexhaust gas. mum temperature limiter in the boiler floor (> 80 °C) has got triggered. No condensate water in the boiler. Automatic gas firing system is Press the unlocking key for the gas relay (I). showing interruption. No ignition. * Check electrodes distance between gas firing system and ignition cable. Rectify the distance or replace defective parts. Clean it, if necessary. Blower or speed control plate is de- Check blower and speed control plate. Refective. * place plug and cables. Replace defective parts. of whom Electrician Operator Customer Service Customer Service Customer Service Customer Service Operator Operator Operator Operator Operator Operator Customer Service Operator Operator Operator Operator Customer Service Customer Service

Note Press unlocking key for exhaust gas thermostat (J) to unlock the flame monitoring mechanism. EN - 11

Fault Possible cause Indicator lamp for exhaust The exhaust temperature limiter gas thermostat (K) is glowing has been triggered. Indicator lamp for protection The softener is over. against calcification (H) glows Inadequate or no flow of de- Dosing valve to position "0". tergent Detergent filter blocked or tank is empty. Detergent suction hoses, detergent metering valve or detergent solenoid valve are leaky or blocked. Electronics or solenoid valve is defective. Full pressure does not build Flushed the nozzle. up in the appliance Detergent tank is empty. Not enough water Sieve at the water inlet is blocked. Leaky detergent dosing valve. Leaky detergent hoses. Swimmer valve is jammed. Safety valve is leaky. High pressure pump is knocking; manometer is swaying wildly Device continuously turns on and off while hand spray gun is open Appliance does not switch off when the hand-spray gun is closed

Remedy of whom Open the hand-spray gun until the plant has Operator cooled down. Switch the plant off and then on on the operating panel to unlock the temperature limiter. If the event recurs, call Customer Service. Refill the softener. Operator Adjusting the detergent metering valve. Clean and/or refill. Operator Operator Check, clean. Operator Replace Customer Service Replace the nozzle. Refill detergent. Ensure adequate water supply. Check, dismantle sieve and clean it. Check and seal it. Replace Check and ensure that it moves freely. Check the setting; install new washers, if required. Flow valve is leaky or has been set Check valve parts; replace damaged parts; at a low value. clean the dirt. Solenoid valve for pressure reReplace solenoid valve. lease is defective. Vibration dampener is defective. Replace vibration dampener. Water pump does not suck in ade- Check suction system and remove leaks. quate air. Nozzle in spray pipe is blocked. Check, clean. Appliance is decalcified. See section "Descaling". Switching point of the over-current Get somebody to reset the over-current monitor. monitor has got shifted. Sieve blocked in the water short- Check, dismantle sieve and clean it. age safe guard. The pump has not been fully vent- Set the machine switch to "0" and pull the ed. hand-spray gun until no fluid comes out of the nozzle. Turn on the appliance again. Repeat this procedure until the full operating pressure is reached. Safety valve or safety valve wash- Replace the safety valve and/or the washer. er is defective. Pressure switch of the overflow Check pressure switch and overflow controller. controller. Operator Operator Operator Operator Operator Operator Operator Customer Service EN - 12 Customer Service Customer Service Customer Service Operator Operator Operator Customer Service Operator Operator Customer Service Customer Service Accessories Detergent Detergents simplify the cleaning tasks. The table gives a selection of detergents. Please read the instructions on the packaging carefully before working with any detergents. Area of application Dirt, type of application Detergent Vehicle dealers, fuel sta- Dust, street dirt, mineral oils (on tions, freight forwarders, painted areas) car pools RM 55 ASF ** RM 22/80- Powder ASF RM 81 ASF RM 803 ASF RM 806 ASF Vehicle protection RM 42 Cold wax for high-pressure cleaners RM 820-Hot wax ASF RM 821-Wax spray ASF RM 824-Super pearl wax ASF RM 44 Rim cleaning gel Metal-processing industry Oils, greases, dust and similar im- RM 22- Powder ASF purities and dirt RM 55 ASF RM 81 ASF RM 803 ASF RM 806 ASF RM 31 ASF (for stronger dirt) RM 39- liquid (with anti-corrosion agents) Food-processing units Light to heavy dirt, greases/ oils, RM 55 ASF large areas RM 81 ASF RM 882 Gel foam OSC RM 58 ASF (Foam detergent) RM 31 ASF * smoke resin RM 33 * Cleaning and disinfection RM 732 Disinfection RM 735 Chalk, mineral deposits RM 25 ASF * RM 59 ASF (Foam cleaning) Sanitary area *** Chalk, stone, soaps, etc. RM 25 ASF * (basic cleaning) RM 59 ASF (Foam cleaning) RM 68 ASF pH value (approx.) 1 %-solution in tap water 12/10

• = only for short use, two-step method, rinse with clean water ** = ASF = easy-to-dispose *** = Foam-Star 2000 is best suited for initial spraying EN - 13

Gas appliances with an exhaust system that sucks out the combustion air from the installation room Installing the plant Only for authorised technicians! Type B23

The heating appliance of the machine is an ignition plant. Please follow the local regulations while installing it. Use only certified chimneys/exhaust pipes. Generall rules for gas

Gas appliances without flow controller where all parts of the exhaust system that are subjected to excess pressure are free of combustion air. The B23 installation opens new options of connecting the appliance to a traditional single-draught chimney according to DIN 18160 and operating it depending on the air conditions in the room. The only requirement is that the chimney must be suitable for being connected to combustion devices (i.e. it has been cleaned by inserting a stainless steel pipe). The installation of gas pipes as well as the gas-side connections of the appliance should only be done by a company specialised in gas and water installations. Settings and repairs to the gas burner should only be carried out by trained Kärcher Customer Service Technicians. Gas pipes There should be a manometer and a locking valve in the gas pipe that should have a minimum diameter of 1 inch. – Due to the vibrations caused by the high pressure pump, the rigid gas pipe must be connected to the appliance using a flexible gas hose. – For gas pipes that are more than 10 m in length, the diameter must be 1 1/2 inch or more. The gas connection to the appliance has a diameter of 1 inch. Danger While attaching the flexible gas hose to the burner, the connection nipple must be held with a fork key SW 36. The connection nipple should not get twisted vis-a-vis the burner casing. The threaded connection should only be sealed using a sealant approved by DVGW. After connection, check the joint using a DVGW leak-search spray to ensure that the joint is leakproof. The width of the gas pipe must be calculated according to DVGW TRGI 1986 or TRF 1996. The diameter of the gas connection to the appliance does not automatically become the diameter of the pipe connection. The dimensioning and installation of the gas pipes must be done according to the corresponding norms and regulations.

Gas appliance with an exhaust system that removes the combustion air into the open via a closed system Type C33 Gas appliance with combustion air supply and exhaust system placed vertically over the roof. The inlets are located almost close to each other in the same pressure range. Ventilation / exhaust system

Each appliance must be connected to a separate chimney. The exhaust system must be designed according to the local rules and regulations after consulting the concerned chimney expert. EN - 14 Wall mount Type C43 Gas appliance with combustion air inlet and exhaust system to be connected to an exhaust system.

Before installing, please check the load-bearing capacity of the wall. The fastening material delivered with the plant is suitable for concrete walls. Use suitable anchor plugs and screws for hollow component walls, brick walls and gas concrete walls - for e.g. injection anchor (for drilling diagram see the specifications sheet). Figure 3 - items 19 and 25 The appliance should not be directly attached to the network of water and high pressure pipes. It is mandatory to install the connecting hoses. Figure 3 - A A shut-off tap must be installed between the main water supply and the connecting hose. Installing the high pressure connections Type C53 Gas appliance with separate combustion air inlet and exhaust system. The inlets are located in different pressure ranges. All national laws and regulations about installation of electrical appliances must also be followed when installing high pressure lines. – The pressure loss in the pipe connections must lie below

– The completed pipe connections must be checked using 32 MPa. – The insulation of the pipes must be resistant to temperatures until 100 °C. Install the detergent tank Figure 3 - Pos. 20 The tanks are to be installed in such a way that the lower level mirror of the detergent should not be more than 1.5 m under the machine floor and the upper level mirror should not be located above the machine floor. Water supply Figure 3 - B and item 19 The water inlet is to be connected to the main water supply using an appropriate water hose. – The water supply must have a minimum output of 1300 l/h at minimum 0.1 MPa. – The water temperature must lie below 30 °C. Electrical connection Note: The chimney draught specifications given in the technical data must be maintained if you want to achieve the prescribed combustion values. Drainage of condensate The condensate pipes must be siphoned directly at the condensate connection. The siphon height must be 30 cm. The siphon is included in the scope of delivery. The condensate pipe must not be firmly connected to the drainage system. The condensate must first flow out freely into a funnel or a neutralisation container. Caution The highest allowed net impedance at the electrical connection point (refer to technical data) is not to be exceeded. In case of confusion regarding the power impedance present on your connection, please contact your utilities provider. Note: Operating procedures create short term power sinkings. During unfavorable net conditions other devices might be disturbed. – For connection values, see technical data and type plate. – The electrical connections must be done by an electrician according to IEC 60364-1. – Current-carrying parts, cables and appliances in the working area must be installed in a defectless state and must be protected against water sprays. To avoid accidents due to electrical faults we recommend the use of sockets with a line-side current-limiting circuit breaker (max. 30 mA nominal tripping current). Firmly installed electrical connection Establish the electrical connection. A main switch that can be locked (figure 3 - item 6) is to be installed at a safe and easily accessible place to switch off the stationary high pressure cleaner. The contact opening of the main switch must be minimum 3 mm. EN - 15

Electrical connection with plug/ socket Install Cekon plug on the connection cable of the appliance. Insert Cekon plug into the socket. To switch off the stationary high pressure cleaner, the Cekon plug must be easily accessible so that it can be removed from the mains. Anti-calcification measures

Initial startup The device is set in the factory as a natural gas device to gas type G 20 and as LPG device to G 31. While switching over natural gas devices to G 25 or other natural gases (see type plate) or the LPG device to G 30 or other LPGs (see type plate), the natural gas exhaust values in case of natural gas devices and the LPG exhaust values in case of LPG devices are to be set according to the service information. The enclosed empty type plate will be filled up with values of the new gas type that is set and will be fixed on the right side of the device in the address field. At the same time, the plate with the G 20 (natural gas device) details or G 31 (LPG device) details fitted at the factory must be removed. Check gas connection. Caution Risk of damage to the appliance on account of over-heating. Connect the siphon to the boiler floor and fill water. Fill the boiler via the chimney opening with 4 litres of water. Before using for the first time, cut off the tip of the lid of the oil tank on the water pump. Measures to be taken before start-up

Remove spring (c) from the lid support (b) of the softener tank (a). Fill the tank with Kaercher softener liquid RM 110 (Order no. 2.780-001). Danger Risk of electrical voltage! Setting may only be done by an electrician. Determining the hardness of tap water: – through the public water supply works, – using a hardness tester (order no. 6.768-004) Remove the appliance cover. Open the switch box at the operating panel. Figure 3 - Pos. 14 Connect the high pressure hose with the hand-spray gun and the spray pipe and connect it to the high pressure outlet of the appliance or the high pressure pipe network.

Fasten the nozzle mouth-piece (b) with the union nut (a) on the spray pipe (d). Please ensure that the sealing ring (c) is cleanly positioned in the nut.

Set the speed potentiometer (a) according to the water hardness. You can refer to the correct setting in the table. Example: For a water hardness of 15 °dH, set 6 on the value scale of the speed potentiometer. This results in a pause of 31 seconds, i.e. the solenoid valve will open briefly every 31 seconds. Water hardness (°dH) Scale on the speed potentiometer Pause (in seconds) EN - 16

Adjusting the operations stand-by time The operations stand-by time is set on the larger plate on the left side-wall of the electrical cabinet.

min. max. The operations stand-by time is set in the factory to a minimum time of 2 minutes and can be increased to a maximum time of 8 minutes. EN - 17

Installation material Hose switch Hose drum High pressure hose 10 m Hand-spray gun Easy Press Speed regulator HPS 9/16-4 Speed regulator HDS 12/14-4 Spray pipe holder Spray lance Nozzle mouth-piece HPS 9/16-4 Nozzle mouth-piece HDS 12/14-4 Water pipes Solenoid valve for water inlet Detergent tank, 60 l Gas hose R1" Gas shut-off valve R1" Manometer, gas (Note! provide shut-off valve in the building.) Set of parts for wall console Set of parts for floor frame High pressure hose Figure 3 Item:

11a 11b 11c 11d Installation material Threaded elbow joint Set of connecting parts, exhaust Set of boiler connecting parts, exhaust Set of siphon parts Thermal insulation Main switch Set of pipes, galvanised steel Set of pipes, stainless steel Remote control set Set of parts for emergency-stop switch T-screws Connection neck, brass Connection neck, stainless steel Shut-off valve NW 8, galvanised steel Shut-off valve NW 8, stainless steel Fixed part for quick coupling Loose part for quick coupling Order No. 6.386-356 2.640-425 2.640-424 2.640-422 6.286-114 6.631-455 2.420-004 2.420-006 2.744-008 2.744-002 6.386-269 2.638-180 2.638-181 4.580-144 4.580-163 6.463-025 6.463-023

EN - 18 Order No. 2.042-001 2.637-238 6.388-083 4.775-463 4.775-470 4.775-471 2.042-002 4.760-550 2.883-402 2.883-406 4.440-282 4.743-011 5.070-078 6.388-228 6.412-389 6.412-059 2.053-005 2.210-008 6.389-028 EC Declaration of Conformity We hereby declare that the machine described below complies with the relevant basic safety and health requirements of the EU Directives, both in its basic design and construction as well as in the version put into circulation by us. This declaration shall cease to be valid if the machine is modified without our prior approval. Product: Type: High pressure cleaner 1.251-xxx Relevant EU Directives 2009/142/EC 2006/42/EC (+2009/127/EC) 2004/108/EC Applied harmonized standards EN 55014–1: 2006+A1: 2009+A2: 2011 EN 55014–2: 1997+A1: 2001+A2: 2008 EN 60335–1 EN 60335–2–79 EN 62233: 2008 EN 61000–3–2: 2006+A1: 2009+A2: 2009 HDS 12/14: EN 61000–3–3: 2008 HDS 9/16: EN 61000–3–11: 2000 Applied specifications: QA 195 (not LPG) Name of the appointed agency: for 2009/142/EC GASTEC Wilmersdorf 50 7327 AC Apeldoorn ID No. 0063 5.957-648 The undersigned act on behalf and under the power of attorney of the company management. CEO Head of Approbation Authorised Documentation Representative S. Reiser Alfred Kärcher GmbH Co. KG Alfred-Kärcher-Str. 28 - 40 71364 Winnenden (Germany) Phone: +49 7195 14-0 Fax: +49 7195 14-2212 Winnenden, 2010/12/01 Warranty The warranty terms published by our competent sales company are applicable in each country. We will repair potential failures of the appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in fabrication. EN - 19

Customer Service Plant type: Manufact. no.: Start-up on: Testing done on: Findings: Signature Testing done on: Findings: Signature Testing done on: Findings: Signature Testing done on: Findings: Signature

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

Gastec QA Low NOX I 2E (r), I

UK - 20 http://www.kaercher.com/dealersearch