UXT Series
Contents
1. 5 2 4 Adjustment of shut off valve for steam supply 5 2 9 Drain COMMCCUOND 5 3 Connecting of detergent PUMP cccseceeeseseeseeeeseeeeseeceseeeeneeseneeseneess 6 MOTOS 8 aeii 9 AWS SOON 9 5 2 Detergent only option 9 5 3 Softener only on option 9 5 4 Filling of the rinse booster heater and pre dosing 9 a A E E A E A 10 6 1 Adjustment of detergent dosage quantity 10 6 2 Adjustment of rinse agent dosage 10 6 3 Adjustment of water hardness with optional softener only 10 6 4 Priming of Suction hose detergent 11 6 5 Priming of Suction hose rinse 11 T 12 AI FPR CD ei AU OM E 12 Te Pe 13 8 Preview of temperatures 13 9 Switch off and cleaning the machine2. 14 OD AVVO MO UIP 14 9 2 Cleaning dally 14 9 3 Cleaning weekly 14 10 Refilling the softener with 15 11 Frosi prevenli n 15 12 a 15 16 14 Trouble shooting guide 16 2 2 Installation Location Wall clearance is not required at the rear The lateral distance between machine and wall should be 400 mm on one side To avoid damage of the feet do not slide the machine on floor after the skid is removed Level machine by turning the feet Distribute machine weight equally onto all feet Connections Electrical connection A Must be carried out by an authorized technician according to the local and national codes The electrical supply shall comply with the name plate data With voltage 400 50 3 N reduced booster loading can be realised according to wiring diagram Line fuses and cable cross section shall comply with the requirements A cut off device shall be provided to connect the supply cord isolating switch or accessible plug device According to EN 60 335 the appliance must be connected to an equipotential conductor The connecting screw xy is located at the back side of the machine Water connection A M
3. Do not use any acid detergent products with the optional built in detergent pump The ph value has to be higher than 7 Place the suction hose clear into the detergent container A The sucking high of dosing pumps is max 1 5 meters Do not confuse the containers As high pressure and high circulation is needed for the cleaning of utensils use only commercial low foaming detergent and rinse agent Please pay attention to the manufacturers safety rules and instructions 5 3 Softener only on option The machine will be delivered without salt For the first run the softener has to be filled with salt and water Open the door Unscrew the softener lid and fill the softener with 2 kg of Granular salt do not use salt tablets Fill up the softener with drinking water Clean seal of softener lid carefully before closing 255255552 the lid Se sass Se S Close lid and tighten 5 4 Filling of the rinse booster heater and pre dosing Close the door Open shut off valve Switch on main switch or put the plug Push the ON OFF button 1 the button illuminates At the temperature indicator Rinse appears boF and flashes The rinse booster heater has to be filled as described in the following text Push the ON OFF button again to switch off the machine Open the door push Program button 4 and Drain button simultaneously unt
4. This should be carried out by after sales service Reset for operation Open the door push Program button 4 and Drain button simultaneously until at the temperature indicator Rinse bOF appears Push Start button at the temperature indicator Wash 5 appears 1 and hold until water come out of booster overflow Close the door The machine switches off and is now ready for operation Maintenance For trouble free operation we recommend you enter into a service contract with your local Service Office 15 The Service indicator 8 illuminates and the temperature indicator Rinse displays a code e g AL drain fault Possible types of fault as follows please report the code of fault to the service technician Ce Shutoff valve is closed 8 Fill valve or fill system defective Fon Temperature probe ise booster defective Caine after sales sence Temperature probe tank defective Rinse booster heating defective Maybe restricted operation possible the after sales service 14 Trouble shooting guide TYPE OF FAILURE POSSIBLE CAUSE REMEDY Washware is not clean Wash arms stiff you should be able Take out wash arms and clean them thoroughly to turn them easily by hand Check water outlet from machine to wash arms is Clear Wash arm nozzles are clogged Take out wash arm remove cleaning cap and visual check rinse wash arm thoroughly until soil is removed Re
5. sure that permissible pressures and temperatures will not be exceeded All pipework has to be insulated with water and heat resistant material Adjustment of shut off valve with flow reducer for steam supply The built in shut off valve is equipped with an adjustment device A to limit the heating supply medium A special tool is necessary for adjusting the valve seat The correct adjustment is very important particulary for higher pressure and therefore must be done by a HOBART trained service man at first installation or after any changes are done at the customer site The adjustment is correct if the heating up time of the boiler is as long as the shortest wash cycle while the valve is opened to maximum If adjusted too far open pressure shocks may occur when the solenoid valve closes This could cause damage at the installation If adjusted too far close the required heating power cannot achieved Drain connection Connection between machine and site drain must not exceed max height of 800 mm Do not place the drain hose loosely on the floor the hose could be rubbed through Fix it at site Do not kink the drain hose 3 Connecting of detergent pump If no detergent pump was ordered please connect the detergent dispenser as described below A Must be carried out by an authorized technician according to the local and national codes Tank must be drained Switch off main switch or unplug Remove f
6. HOBART Utensil Washing Machines UXT Series INSTALLATION OPERATION REV 8 xx 04 07 2005 Important Notes Use in Accordance with Regulations Hobart Utensil Washing Machines are only intended for cleaning pots and pans baking sheets cutlery trays etc Do not use for electrically heated cooking and heat conservation appliances Do not put heavy objects on the top of the machine Safety Do not stand on the open front door of the machine Never hose down the machine for the safe operation of the machine Please read these passages T The Attention symbol is shown beside instructions that are essential thoroughly Liability Installations and repairs which are carried out by non authorized technicians or the use of other than original spare parts and any technical alterations to the machine may affect the warranty set out in the standard conditions of sale Machine noise level is 67 dB A Installation and Operation Instructions for Models of UXT Series Content Page TPS TAA E E 4 Wet 4 2 Connections 4 2 1 Electrical connector 4 2 2 Water connection 4 2 3 Steam connection steam heated machines only
7. TENTION Do not stand on the open front door of the machine Switch off Close door push and hold Drain button 3 for 2 secs NOTE During the drain cycle the interior of the machine is cleaned automatically A final inspection is recommended to remove coarse soil When Drain button goes off switch off main switch or unplug and close shut off valve at site Cleaning daily Open the door Take out strainers and flush Clean interior of the machine Put strainers back into place Leave door open for ventilation Cleaning weekly out wash rinse arms Use the strainer as a spanner to loosen the hexagon screw 1 by turning it counter clockwise 2 Open plugs of wash and rinse arms and flush Put all parts back into place 10 11 12 Refilling the softener with salt Only for machines with optional built in softener When the Salt required 7 indicator illuminates the softener has to be filled with regeneration salt Wait until the wash program is finished Open the door Unscrew the softener lid and fill the softener with 2 kg of Granular salt do not use salt tablets Clean seal and rim of softener lid carefully before closing the lid Close lid and tighten The Salt required indicator 7 goes off with delay Frost prevention In case of frost or longer operation pauses e g for seasonal operations the machine must be completely drained
8. deal conductivity value for washware made of stainless steel max 80 uS cm and for dishes 400 5 Insufficient rinse aid concentration Increase quantity see instructions Causes staines Machine with softener wrong type of salt used Use only granular salt Machine gets much louder Foam production above average Use suitable detergent and rinse agent during wash cycle caused by unsuitable detergent and rinse agent Foam production above average Pre clean washware caused by contact of foam producing substances albumins etc Other malfunctions Machine is connected to a maximum Connect machine separately call electrician power supply unit which cuts out the Machine suddenly stops during wash programme energy consumer at a given point or machine is interlocked with another energy consumer unit Blown site fuse Check site fuses If no button will be pressed during 6 hours the machine switches off automaticaly without draining Follow the description below during the next switch on Push the ON OFF button Push the Drain button and wait until the machine is drained and switched off Restart the machine as discribed at chapter 7 17 As continued product improvement is policy of HOBART specifications are subject to change without notice Printed in Germany AG 21220 D 07 05 PC
9. il at the temperature indicator Rinse appears again Push Start button At the temperature indicator Wash 5 appears 1 Wait until the indicator displays 0 Close the door The machine switches off and is now ready for operation 6 Settings Attention machine has to be switched off Open door push Program button 4 and Drain button simultaneously until at the temperature indicator Rinse 6 appears If no button is pressed during next 10 secs the indicator switches off and the new settings will be saved 6 1 Adjustment of detergent dosage quantity delivery values are only valid with built in HOBART dispenser Push Program button again The temperature indicator Rinse displays CH1 adjustment of the detergent dosage quantity The temperature indicator Wash displays e g 30 pre adjusted value of the detergent dosage time 30 sec 2 3 0 1 To adjust the detergent dosage time push Start button repeatedly until the desired value 0 50 sec 0 3 8 g l appears at the Wash indicator Adjustment should be done in accordance with chemical Suppliers recommendations 6 2 Adjustment of rinse agent dosage quantity Push Program button 4 again The temperature indicator Rinse displays CH2 adjustment of the rinse agent dosage quantity The temperature indicator Wash displays e g 38 pre adjusted value of the r
10. inse agent dosage time 38 sec 0 4 g l To adjust the rinse agent dosage time push Start button repeatedly until the desired value 0 50 sec 0 0 5 g l appears at the Wash indicator Adjustment should be done in accordance with chemical Suppliers recommendations 6 3 Adjustment of water hardness with optional softener only To adjust the softener to the local water hardness obtain details from local water authority Push Program button 4 again The temperature indicator Rinse displays 2 adjustment of the softener if built in Push Start button repeatedly until the required value H01 appears at the temperature indicator Rinse up to 10 eh H02 11 to 20 eh 21 to 30 eh water hardness eh Clark 6 4 6 5 Priming of suction hose detergent only with built in detergent pump To prime the detergent suction hose between the injector and container Close door The temperature indicator Rinse displays SF1 Priming of detergent suction hose Push and hold Start button for 1 minute approx Priming of suction hose rinse agent To prime the rinse agent suction hose between the injector and container Push Program button again The temperature indicator Rinse displays SF2 Priming of rinse agent suction hose Push and hold Start button for 3 minutes approx By using external container wi
11. itch off the machine immediately without drain cycle by pushing this button again After switch off the machine is not voltage free By pushing this button the wash cycle will be started Furthermore the button illuminates to indicate the mode of the machine RED machine fills and starts heating GREEN machine is ready for operation BLUE selected program is running Only for machines with pole switchable wash pump Option High pressure mode for a running cycle will be activated by short pushing the blue illuminated Start button not possible within the first 5 seconds after cycle start By pushing and holding 3 sec the Start button high pressure mode will be activated permanently By pushing and holding 2 sec this button the drain and self cleaning cycle starts At the end of the cycle the machine switches off automatically After switch off the machine is not voltage free By pushing this button it is possible to select between different pre set programs according to the model and equipment The program no e g 02 appears at the rinse temperature indicator Indicates only on demand see chapter 8 Indicates only on demand see chapter 8 Indicating the need for regeneration salt to be added Only with built in softener Indicating that the machine has a fault 5 First run 5 1 Rinse agent Place the suction hose blue into the rinse agent container 5 2 Detergent only on option
12. place correctly Rinse arm nozzles are clogged Remove rinse arms and decalcify them in possibly by lime deposit separate container Detergent concentration is too low or Check setting of detergent concentration too high See also operating instructions point 6 Coarse strainer soiled Take out strainer empty and clean it Fine strainer soiled or obstructed Take out fine strainer If heavily soiled soak in a by lime vinegar solution Then clean it thoroughly until the pores are free Cleaning is to be done daily see operating instructions Wrong programme selected for heavily Select programme with longer wash cycle soiled washware 16 TYPE OF FAILURE POSSIBLE CAUSE REMEDY Washware does not dry Rinse aid concentration too low Increase concentration see operating properly instructions Washware still greasy 1 Detergent concentration too low increase see instructions 2 Check if detergent is appropriate If not choose a stronger one 3 Drain soiled water and refill machine Check pre scrapping procedure Washware stays too long in the Take out washware as soon as cycle is completed machine at the end of programme to enable them to dry Stripes and staines on Rinse aid concentration too high Reduce quantity See instructions washware Hard water or high mineral content Check water quality Obtain details from local water authority Recommended values Ideal degree of hardness is 4 Clark I
13. present program push Program button before starting the wash cycle To change the program push Program button again P 01 Short cycle for light medium soiled washware 02 Standard cycle for medium heavy soiled washware P 03 Long cycle for dried on soiling and containers P 04 Endless cycle An endless cycle will be indicated by moving light points at the temperature indicators To stop the wash cycle push Start button After 20 minutes the machine will stop automatically After a short break rinse starts automatically The machine continues with the chosen cycle time until switch off Only for machines with pole switchable wash pump Option High pressure mode for a running cycle will be activated by short pushing the blue illuminated Start button not possible within the first 5 seconds after cycle start By pushing and holding 3 sec the Start button high pressure mode will be activated permanently until the progam will be changed or the machine is switched off At the temperature indicator Rinse appears HP 8 Preview of temperatures Press and hold 3 sec Program button until the indicators Wash 5 and Rinse show the actual temperatures C The indicators go out 10 sec after releasing Program button Permanent temperature display can be activated on request by the service technician 13 14 9 1 9 2 9 3 Switch off and cleaning the machine A AT
14. ront panel Lift up control box and turn it to front TO CONNECT A LIQUID DETERGENT DISPENSER Remove blanking plug A Install detergent inlet fitting gasket Connect a hose PVC 6mm outside x 4mm inside between outlet of the detergent pump and the detergent inlet B of the wash tank Tighten with hose clamp Install dosage pump or fit external dispenser TO CONNECT A POWDER OR SOLID DETERGENT DISPENSER Remove the rear panel Drill a hole through the inner tank wall appropriate to the required connection diameter see fig Screw up tightly the dosing connection with tank wall Connect the plug C of the wire harness with the dosage pump max 100 VA Close control box and put panel s back into place Switch on main switch at site or put the plug in Dispenser adjustment see chapter 6 1 CONDUCTIVITY PROBE Conductivity probe should be installed at the flat part of tank bottom see fig The hole size should be appropriate to the conductivity probe 4 Controls HOBART 1 Machine ON OFF illuminates during operation 2 Start button 3 Drain button illuminates during operation 4 Program button 5 Temperature indicator Wash C 6 Temperature indicator Rinse C 7 Salt required Service indicator By pushing this button the machine will be switched on In case of emergency e g faults it is possible to sw
15. th a longer suction hose hold the Start button about 6 minutes 11 7 Operation 7 1 Preparation Check correct position of wash rinse arms and strainers Open shut off valve switch on main switch or put the plug in Check level of detergent and rinse agent containers Close door and push the ON button 1 tank will be filled The Start button illuminates red during fill and heating cycle The filling time depends on the water feed temperature and can take up to approx 45 minutes machines with built in softener adjusted to water hardness 2 or HO3 need approx 65 minutes When the Start button changes to green light machine is ready for operation Remove coarse food soil Avoid soiling by foam producing substances albumins Insert sheets into the frame Put pots and pans facing downwards into the racks Protect light washware by putting on a rack 12 7 2 Run Put rack into the machine and close door Push the Start button During the wash cycle is running the Start button illuminates blue As soon as the Start button changes to green light the wash cycle is finished Open door and take out rack Allow washware to dry for 1 minute approx Select program The machine is operating automatically with standard cycle time If needed it is possible to select a shorter or longer program To show the
16. ust be carried out by an authorized technician according to the national and local codes The machine must be operated with water of drinking quality For water with an extremely high mineral content water treatment is recommended Machines without softener Connect to soft and if possible warm water up to 4 Clark 0 5 mmol l max 60 Line flow pressure 0 5 10 bar Important the line flow pressure must not be less than 0 5 bar If the line flow pressure is above 10 bars provide pressure reducer at source Machines with softener Connect to warm water max 60 C if possible Line flow pressure 0 5 10 bar Important the line flow pressure must not be less than 0 5 bar Ifthe line flow pressure is above 10 bar provide pressure reducer at source ay i max 800 mm 2 3 2 4 2 5 Connect the union nut A 3 4 of the water supply hose with the site shut off valve Do not kink or cut the supply hose Eventually needed extension has to be provided with a suitable pressure hose Steam connection steam heated machines only a Must be carried out by an authorized technician according to the national and local codes Connection to steam supply DN 20 at customer site 0 5 3 5 bar max 150 C at the machine See data plate Dimension of steam and condensate piping has to be according to the requirements The machine is equipped with all necessary fittings Make
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