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MAINTENANCE MANUAL

Mirage technical manual

page 33 of 65

7. Apply a few drops of Loctite or a few windings of Teflon tape to the threads of the replacement

safety valve and mount in fitting on boiler.

8. Turn mains switch to

“2”, wait until pressure has built up.

9.  Check valve and sealing for leakage.
10.  Remount hose.
11.  Mount cup warmer.

Figure M 14. Use 2 spanners to remove the safety valve from the tube.

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Содержание Mirage

Страница 1: ...Mirage technical manual page 0 of 65 touchpad and bastone versions Technical manual Mirage Document ID Sup Mtm Eng Date of issue November 23 2016 Revision date...

Страница 2: ...ix block to fitting for scale build up 29 Check restrictor in mix block on scale build up 30 Safety valve on steam boiler 32 Expansion valve on manifold 34 Rebuild valves 37 Clean probes level and saf...

Страница 3: ...machine upon arrival We therefore recommend to check and bench test each machine in your workshop before installation at a client s location Body panels may become affected by prolonged exposure to s...

Страница 4: ...er since it has an extra group in between the two groups shown here but its function is identical to a Duette 1 Mains switch heating element indicator light s and fuse s not visible on photo 2 Touchpa...

Страница 5: ...Countertop feedthrough dark grey circle diameter 60 mm is optimally positioned in light grey square Note that steam wands will protrude a few centimetres left and right from machine Silhouette Side v...

Страница 6: ...this needs to have a hole of 15 mm diameter per hose Before unpacking the machine you must be sure the area where the machine will be placed has been prepared properly The countertop should be level a...

Страница 7: ...justable The conditions of the environment the location of your Mirage may change slightly due to room temperature draught and air humidity As the temperature difference between the group head and the...

Страница 8: ...WELCOME Mirage technical manual page 7 of 65 Figure W 2 Schematic hydraulics Mirage at idle Sizes of restrictors may be different in your machine...

Страница 9: ...WELCOME Mirage technical manual page 8 of 65 Figure W 3 Schematic hydraulics Mirage when brewing Sizes of restrictors may be different in your machine...

Страница 10: ...ressure drop in the boiler will immediately lead to a small temperature drop adiabatic expansion which results in activation of the heating element The controller allows for easy adjustment of boiler...

Страница 11: ...prevents your workspace from being slowly flooded The Mirage is also equipped with an easily operated cleaning program which pressurises and de pressurises all groups simultaneously 8 times in a row...

Страница 12: ...ults in bland tasting brews although it can also neutralise slightly acidic coffee grinds You are advised to check the acidity of your water every once in a while Chlorine should not be present in you...

Страница 13: ...t 50 mg l Alkalinity Source Jim Schulman s Insanely Long Water FAQ For comprehensive information about water in espresso machines we refer to Jim Schulman s Insanely Long Water FAQ Originally Posted o...

Страница 14: ...a qualified technician Parts of the machine can reach a temperature of close to 125 C The steam hot water boiler contains water and pressurised steam of 125 C at 1 35 Bar overpressure 257 F at 19 6 P...

Страница 15: ...ves etc Food safe grease is used to reduce friction between the nuts and the tubes when tightening the tubes to fittings etc Copper Ease is an anti seize compound with a very high temperature toleranc...

Страница 16: ...pe current Ampere meter may be useful to check power through the heating elements Thread extractor s to remove broken off fittings Figure M 3 Temperature meter with sensor mounted in filter holder wit...

Страница 17: ...brass mounting nuts for cracks replace if necessary Do not over tighten the brass mounting nuts 6 Don t forget the rubber washer between the glass side panel and the large glass nut do not over tighte...

Страница 18: ...tray remove 4 Allen bolts then slide towards barista side and lift off Note that protective film is still on parts of machine 3 Carefully slide lower cup warming tray to barista side of machine then...

Страница 19: ...panel forward towards barista side to unhook from front panel Remounting upper side panel 1 Place upper side panel close to frame and make sure that it hooks onto front panel 2 Mount the 3 mm Allen bo...

Страница 20: ...rature remains nearly constant Any drop in steam temperature is noticed by the controller which in turn activates the heating element When cold water flows into the boiler after the hot water tap has...

Страница 21: ...team pressure due a temperature decrease from 125 to 124 C Note Changing the boiler temperature has little effect on coffee water temperature If you want to change the temperature of the brewing proce...

Страница 22: ...re M 9a you have to install a restrictor with a different aperture If your machine has adjustable restrictors see Figure M 9b you can change the aperture by turning the knob on the restrictor needle I...

Страница 23: ...nch 3 Use 30 mm spanner to make sure that upper banjo is tightened 4 Fixed restrictor a Relieve pressure from heat exchangers i Turn mains switch to 1 ii Close water supply and disconnect electrics fr...

Страница 24: ...n the threads 11 Replace cup holder cover plate Adjust pump pressure See installation manual for explanation and procedure Notes Do not set the pump pressure with a blind filter in the filter holder W...

Страница 25: ...e not in agreement over the possibility whether the descaling agent may or may not cause corrosion within the machine Calcium carbonate is taken out of your tap water and stored in the water softener...

Страница 26: ...perational when checking the anti vacuum valve for leakage However it must be shut down and pressure from the boiler must be fully released before the anti vacuum valve can be replaced Check anti vacu...

Страница 27: ...boiler 7 Replace the anti vacuum valve with a drop of Loctite or a few windings of Teflon tape on the threads Use a new copper O ring in between boiler and valve Do not tighten with a lot of force 8...

Страница 28: ...ner to loosen conical nut on steam valve or hot water fitting The rag is used to prevent scratching Procedure 1 Make sure that valve is closed and valve temperature is such that it can be firmly gripp...

Страница 29: ...ut a few turns onto the valve 10 Apply 2 drops of Loctite to the threads of the valve Tighten nut with spanner do not use excessive force Figure M 12 Steam or hot water wand end with plunger removed G...

Страница 30: ...build up it has to be de scaled take it out of the machine during de scaling or replaced Materials needed Allen key 3 mm Spanner 14 mm 16 mm Food safe grease de scaling agent or new tubing when necess...

Страница 31: ...4 locking washers 4 mm Figure M 13a left Showing mix block seen from back of machine with both flange valves Nut and washers on solenoid coil have been removed to illustrate top side of coil Figure M...

Страница 32: ...e and that the holes in the valve base line up with the holes in the mix block Use new locking washers do not over tighten the 4 Phillips bolts 10 Remount the solenoid coil with spring washer and nut...

Страница 33: ...safety valve for leakage However it must be shut down and pressure from the boiler must be fully released before the safety valve can be replaced Check safety valve Materials needed Allen key 3 mm Pr...

Страница 34: ...ndings of Teflon tape to the threads of the replacement safety valve and mount in fitting on boiler 8 Turn mains switch to 2 wait until pressure has built up 9 Check valve and sealing for leakage 10 R...

Страница 35: ...ty should the expansion valve fail to open It is also possible to check adjust without increasing pump pressure but you only have 2 minutes for the water to expand then the group valve is shut automat...

Страница 36: ...ncrease opening pressure of expansion valve Note If the pump pressure has exceeded 12 bar reduce pump pressure first and then shortly activate another group to reduce pressure in the coffee system 9 k...

Страница 37: ...p until the LED s start flashing 4 Turn mains switch to 0 5 Note how far outer nut is screwed onto valve Remove outer part of the expansion valve completely by turning counter clockwise with 12 mm or...

Страница 38: ...nob Figure M 16b right Remove valve end nut from valve use rag to prevent scratching Normally the valve knob would be removed already Procedure steam valve 1 Turn machine off 2 Open steam valve until...

Страница 39: ...on O rings on the plunger and red silicone O ring use grease see Figure M 12 and Teflon O ring at rear of conical nut of steam wand 10 Replace the 2 Viton disks on the valve shaft and the plunger with...

Страница 40: ...om back of machine The probe with the white wire operational level protrudes 45 mm above the boiler the probe with the orange wire safety level is pushed down as far as possible Figure M 18b right New...

Страница 41: ...t until safety level is reached pull orange wire from probe to check the elements should be disengaged now b boiler stops filling when operation level is reached c leakage 11 Remount cup warmer Note W...

Страница 42: ...ver no 2 Replacement flange valves mix block 2x Replacement locking washers M4 mix block 8x Replacement 3 way valves group valves Duette 2x or Triplette 3x Replacement 2 way valve fill valve different...

Страница 43: ...otective cap 1 Remove electrical plug from coil 2 Remove flat nut retaining coil to valve with spanner 14 mm remove coil 3 Remove 4 screws that hold the flange valves to the mix block with Phillips sc...

Страница 44: ...Loosen 16 mm nuts on both sides of the valve retain the fittings with a 14 mm spanner see Figure M 20 5 To get extra space remove the copper tube that leads water from the upper group duct to the val...

Страница 45: ...lve Remove 21 or 20 mm nut from steam valve and 20 mm nut from tubing to boiler 1 Remove the tubing on the top side of the valve completely see Figure M 21a retain the fittings with proper spanners 14...

Страница 46: ...n use a little food safe grease to the fittings on the valve and on the back side of the half ball end of the tubes 9 Mount electrical plug on coil with rubber seal and screw Check your work solve pro...

Страница 47: ...utton on touchpad program button on bastone until LED s start blinking then de activate groups 8 Turn mains switch to 0 Steam boiler 9 Remove cap from the steam hot water boiler drain valve with a 20...

Страница 48: ...tube approximately 5 cm 2 inch from the banjo fitting to let air into the heat exchanger Do not remove the injection tube from the heat exchanger yet since that will restrict air from flowing into the...

Страница 49: ...neutral P mains phase 16A fuse CW cold water valve HW hot water valve Fill fill valve GrL group valve left GrR group valve right StL steam valve left StR steam valve right MS mains switch CB mains co...

Страница 50: ...1 1 1 Gr mains ground N mains neutral P1 mains phase 1 P2 mains phase 2 P3 mains phase 3 16A fuse CW cold water valve HW hot water valve Fill fill valve GrL group valve left GrM group valve middle Gr...

Страница 51: ...e heating element The machine is only fully functional in position 2 of the mains switch Position 1 is very useful for testing and checking various functions in the machine Figure T 4 The 3x 3 way swi...

Страница 52: ...element The wiring of this switch is shown in Figure T 5 Figure T 5 The 2x 4 way switch used in Mirages where all 3 spirals of the heating element and 3 SSR s are in use In position 1 connections are...

Страница 53: ...is wired to triple phase 230VAC power mains Figure T 6b Showing the connections made on the brown and grey connector blocks when the machine is wired for single phase power mains In machines for most...

Страница 54: ...l valve is opened with the condition that no group valve is open at the same time As soon as the circuit is closed water inside the boiler touches the probe the pump motor is disengaged and the fill v...

Страница 55: ...controller It is identified by the PUMP 2 indication above left Figure P 1b right Cover taken from controller 12 pole green connector on bottom 7 pole connector above 1 Turn mains switch to 0 2 Remove...

Страница 56: ...m a Pt100 sensor located in the steam above the water in the steam boiler A Pt100 sensor is a so called PTC sensor which means that with increasing temperature the electrical resistance of the sensor...

Страница 57: ...re controller is malfunctioning Replace controller 2 The display shows or a means that measured resistance value is outside higher than sensor range It normally means that the circuit is open Check if...

Страница 58: ...ement Triple phase and high power single phase Mirages have 3 individual SSR s one for each of the three heating spirals in the heating element See also electric scheme Mirage heating 1 phase and elec...

Страница 59: ...light will be lit continuously and boiler water temperature and thus pressure will keep rising unless you use an extreme amount of hot water Eventually the overheat safety switch is activated and or...

Страница 60: ...dicator light will not function although the machine is operational 5 Remount left hand side panel Failure characteristics when the SSR load is semi continuously uncoupled Single phase normal power Mi...

Страница 61: ...switch to 0 remove left hand side panel press red button on safety overheating switch1 turn mains switch to 2 check functioning of machine If that did not have the desired result 2 Turn mains switch...

Страница 62: ...ows the values to be measured for different types of machines Type Power Watts Resistance Ohms Remark Triplette 2000 25 32 Individual spiral Duette 3200 15 20 Single phase machine 2 spirals 1600 32 40...

Страница 63: ...of 65 Figure P 7 Side view of heating element with mounting materials The connectors pair up horizontally for each individual spiral Shown here is a Teflon ring as seal other sealing mechanisms exist...

Страница 64: ...d to an individual circuit or phase left connectors the neutral connectors right are bridged on the large grey connector block The temperature sensor of the overheat safety switch is inserted in a tub...

Страница 65: ...th either a Teflon ring only see Figure P 7 or with the shown EPDM O ring 42x4 5mm with complementary 2mm thick spacer Figure P 10 Custom element flange by TRIAS must be sealed with EPDM O ring 42x4 5...

Страница 66: ...support html Contact information Please supply machine details model and number and full contact information when seeking support or ordering parts Kees van der Westen Espressonistic Works B V Van El...

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