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en6 RHS1280 Symbols used2.4Safety regulations2.4.1 RHS1280Always carefully study and follow all the safety regulationsbefore using the RTI product.Avoid all skin contact with the refrigerant. The lowboiling point of the refrigerant (approx. –30 C) canlead to frostbite. Should refrigerant come into contact with the skin, remove any moistened clothingimmediately and rinse the area of skin affectedwith generous amounts of water.yy Avoid all skin contact with the UV dye. Should UV dyecome into contact with the skin, remove any moistenedclothing immediately and rinse the area of skin affectedwith generous amounts of water.yy R1234yf is colorless, with weak characteristic smell andheavier than air. It may flow into repair pits. Should refrigerant escape, provide for sufficient ventilation(particularly in repair pits) and leave the workshop.Never inhale refrigerant, dye and oil vapors. Avoidbreathing refrigerant or lubricant vapor as thevapors can irritate the eyes, nose and respiratorysystem. If liquid refrigerant or UV dye comes intocontact with the eyes, rinse them thoroughly withwater for 15 minutes. Then obtain medical attention even if no pain is felt. Ventilate work area ifaccidental discharge occurs.yy Refrigerant extracted from a vehicle air conditioningyyyyyyyyyyyyIf high-voltage components or high-voltage wiresare handled incorrectly, there is a risk of fatal injuryfrom high voltage and the possible transmission ofcurrent through the body.yy De-energizing is only to be performed by a qualified electri-yyyy Never swallow UV dye. Should it be swallowed inadvertently, never attempt to induce vomiting. Drink generousamounts of water and obtain medical attention.yy Before connecting the RHS1280 to a vehicle air conditioning system or an external refrigerant bottle, make sure thequick-release couplings are not leaking. Only ever useexternal refrigerant bottles provided with safety valves andcertified inline with the applicable standards.yy Before switching off the RHS1280, make sure all chargingand drainage operations have been completed. This prevents damage to the unit and reduces the risk of refrigerantescaping into the environment.Never use compressed air with R1234yf. Certainmixtures of air and R1234yf are highly flammable.Such mixtures are a potential hazard and may leadto fire or explosions and thus cause damage orinjury. MAHLEsystem may be contaminated with moisture, lubricant, dirtand traces of other gases.The RHS1280 is provided with a refrigerant identification system designed to prevent contamination with otherrefrigerants.If the refrigerant has been contaminated by being mixedwith other gases, remove the contaminated refrigerantand add fresh R1234yf before using the RHS1280 for A/Cservice.R1234yf is not to be used in areas in which there is adanger of explosion. Fire, open flames and smoking areprohibited. Welding and soldering are not permitted.The RHS1280 unit should not be exposed to excess moisture or be operated in wet areas.High temperatures and UV radiation may chemically separate R1234yf. The resultant products can cause coughingand nausea.R1234yf is not to be mixed with other refrigerants. Themixing of refrigerants could damage the vehicle air conditioning system.yyyyyyyyyycian, a qualified electrician for specific tasks (hybrid) or apower systems engineer.Work on vehicles with high-voltage components is onlyever to be performed in a safe, de-energized condition bypersons with the minimum qualification "Trained to performelectrical work".Even after deactivating a high-voltage vehicle electricalsystem, the high-voltage battery may still be live.Operating condition cannot be established from any running noise, as the electric machine is silent when stationary.In gear positions "P" and "N" the engine or electricmotor may start spontaneously depending on the chargeof the high-voltage battery.Never open or damage high-voltage batteries.On vehicles that have been in an accident, never touchhigh-voltage components or exposed high-voltage wiresbefore deactivating the high-voltage vehicle electricalsystem.

Symbols used 7yy The RHS1280 must be constantly monitored when inyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyoperation. Never leave the RHS1280 unattended when inoperation.Vehicle A/C service using the RHS1280 must be preparedand implemented such that the vehicle air conditioningsystem circuit does not have to be opened (for example byremoving the radiator or engine).Position the RHS1280 on all four wheels on a flat, vibrationproof surface so that proper operation of the scales isguaranteed.The RHS1280 can be secured in position by locking thecaster brake.The RHS1280 must always be transported in its operatingposition. Never lay the RHS1280 on its side, as oil couldthen escape from the vacuum pump or the built in compressor could be damaged.There are no additional safety systems for protecting theRHS1280 against damage resulting from natural catastrophes.Never remove any components from inside the RHS1280except for maintenance or repair purposes.Follow the pertinent legal regulations or directives to ensuresafe handling of pressurized devices.We recommend calibrating the scales at least once peryear. Contact customer service for calibration of the scales.The RHS1280 must be subjected to regular maintenanceby service personnel or authorized agents to ensure thesafety of the unit.Disconnect power before performing any maintenance orservice to the unit.Never perform any maintenance work which is not expressly recommended in this manual. Contact customerservice if components have to be replaced other than inthe course of maintenance work.RHS1280 must be connected to a properly groundedelectrical connection.If there is damage to the RHS1280, terminate usage immediately and contact customer service.The service hoses and service quick-release couplingsmust be regularly checked for wear and replaced if damaged.The RHS1280 must be operated in an environment that willprovide at least four air changes per hour.Observe local laws or directives as to ensure the safety ofthe pressurized device.enyy For safety reasons it is advisable to use a residual currentoperated circuit breaker (rccb) with the following specifications:ParametersSpecificationRated voltageRated frequencyRated currentRated tripping currentTripping switch120 VAC 10%50/60 Hz12.5A30 mACyy Avoid using an extension cord with the unit. If necessary,use a good condition (three wire grounded, #14AWG orlarger) extension cord of the shortest possible length.In addtion, the current drawn by all devices connected tothe wall socket must not exceed 15A total.2.4.2Refrigerant identification unityy Inspect the outside diameter of the white sample filter element before and after each use of this unit. As soon as redspots begin to appear on any portion of the white elementoutside diameter, the filter requires replacement. Failure toreplace the filter when so indicated may result in damage tothe identification unit (out of warranty).yy This unit requires connection of the sample fitting to the LPside port of the source vehicle or refrigerant cylinder. Connection of the test hose to the high, or liquid, port of thesource vehicle or refrigerant bottle will result in damage tothe unit (out of warranty).yy Inspect the test hose before and after each use of theunit. Immediately replace the hose if it appears cracked,obstructed, or fouled with oil.yy Never use a test hose other than those approved for usewith the Identifier.yy Never connect the Identifier to any refrigerant source thatexceeds 300 psi pressure. MAHLE

en8 RHS1280 Product description2.5Safety devicesDescriptionFunctionHousing switchIf one of the covers is removed from theRHS1280, all operations are terminated andthe RHS1280 is disabled until theremoved cover has been re-attached to theRHS1280.Service door switch If the service door of the RHS1280 isremoved, the RHS1280 stops all processesand starts service mode. The built-in ventilation fan remains in operation to ensure that anyR1234yf vapors which may haveaccumulated in the RHS1280 housing(e. g. on replacing the dry filter) are extractedfrom the service area.Air flow sensorThe RHS1280 contains an air flowsensor which detects whether or not there isa sufficient flow of air in the housing of theRHS1280.Pressure switchSwitches the compressor off if the normaloperating pressure is exceeded.Safety valveThe safety valve opens if the design pressureis exceeded.FuseInterrupts the power supply if overcurrent isapplied to the RHS1280.VentsThe RHS1280 is provided with ventsin the bottom of the housing to ensure theexchange of air even when switched off.3.Product description3.1ApplicationRHS1280 is suitable for vehicles with a conventional engine aswell as for hybrid and electric vehicles. The RHS1280 featuresall the functions required for vehicle A/C service.The following functions can be implemented:yy Refrigerant recovery and recharging.yy Refrigerant conditioning.yy Vacuum generation.yy Flushing.yy Refrigerant identification.mmThe RHS1280 can only be operated with R1234yf. TheRHS1280 is not to be used for service work on vehicleswith air conditioning systems employing refrigerants otherthan R1234yf, as this will cause damage. Prior to A/Cservice check the type of refrigerant used in the vehicle airconditioning system.3.2Scope of deliveryDescriptionHandle (2)Handle rubber mountService hose (high pressure)Service hose (low pressure)Quick-release coupling (high pressure)Quick-release coupling (low pressure)Used oil bottleOriginal instructionsQuick manualRoll of paper for printerAdapter (external bottle)US ACME 0.5"Calibration check ballInline filters (2)Integrated refrigerant identification unitFlushing adapterFuses - 12.0A(Qty 4 - 2 installed in unit, 2 spare)1) MAHLEMay be included in delivery, depe

Electrical engineering in Germany is subject to the accident prevention regulations of the trade association "Electrical Plant and Equipment as under BGV A3 (previously VBG 4)". In all other countries, the applicable national regulations acts or decrees are to be adhered to. Basic rules The contractor is bound to ensure that all electrical .