TURBOmax VUW 282 E - Heatingspares247.com

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7.18 Replacement of DHWmicroswitch.• Isolate appliance from electricitysupply.• Remove front casing as in section7.1.3.• Lower front control panel as insection 7.1.6.• Lift off microswitch retaining ’bow’spring,• Pull microswitch forward to removefrom mounting bracket anddisconnect wires.• Reassemble in reverse order.• Carry out electrical checks (seesection 5.1).7.19 Replacement of DHW heatexchanger• Turn off boiler as in section 7.1.1.• Remove front casing as in section7.1.3.• Release CH water pressure anddrain boiler as in section 7.1.2.• Lower front control panel as insection 7.1.6.• Unscrew the top two unions (1, fig.74), bottom left hand union andbacknut (2, fig. 74)Note: The connection between theDHW heat exchanger and watersection is a push fit joint.• Pull heat exchanger.forwards toremove.• Reassemble in reverse order usingnew sealing rings supplied.• Refill and repressurise the boiler(see Section 5.4).fig. 74GW 650/142
7.20 Removal of printed circuitboards (PCBs)Before commencing work on PCBreplacements carry out the following:-• Diagnose which board requireschanging using the fault findingguide (see section 8: Fault finding).• Turn off the boiler as in section7.1.1.• Remove front casing as in section7.1.3.• Lower from control panel as insection 7.1.6.• Remove back of control box byundoing the 3 screws (1 and 2,fig. 65).7.20.1 Replacement of mainswitchboard• Disconnect external wiring fromboiler terminal strip.• Unplug 2 ribbon cables fromcontrol board (2, fig. 75).• Unplug all leads from the mainswitchboard.(1, fig. 75) and liftswitchboard carefully out of controlbox.• Reassemble in reverse order.Note: When refitting the mainswitchboard ensure that the on/offcontrol knob spindle (3, fig. 75)engages correctly into the on/offswitch (5, fig. 75) mounted on theboard.• Carry out electrical checks (seesection 5.1)fig. 75GW 615/07.20.2 Replacement of control board• Unplug 2 ribbon cables fromcontrol board (2, fig. 76).• Push four spring retaining clips(5, fig. 76) out, and gently liftcontrol board out of control box.• Reassemble in reverse order.Note: When refitting the controlboard, ensure that the user controlspindles (a, fig. 75) are aligned withthe potentiometer and control switchholes (b, fig. 75) and that the locatingrib of the potentiometer/switchcorrectly engages in the groove of thecontrol knob spindle.• Carry out electrical checks(see section 5.1)fig. 76GW 617/043
Page 1 and 2: INSTRUCTIONS FOR INSTALLATION AND S
Page 3 and 4: 1. Introduction Note: This boiler m
Page 5 and 6: 2.2 Dimensions(All dimensions in mm
Page 7 and 8: 3. General requirements 3.1 Related
Page 9 and 10: 3.4.1 Flue Termination1. The termin
Page 11 and 12: 3.7.2 Filling and make upThe system
Page 13 and 14: 4. Boiler installationsequence4.1 G
Page 15 and 16: 4.3.2 Using the boiler template(fig
Page 17 and 18: 4.5.3.4 Gas supplyThe boiler is sup
Page 19 and 20: Drill two holes 3 mm diameterthroug
Page 21 and 22: 4.8.3 Thermostatic radiator valvesT
Page 23 and 24: 5.4 Filling the heating systemThe b
Page 25 and 26: At this point the preset maximumdom
Page 27 and 28: 5.10 Functional Checks5.10.1 Introd
Page 29 and 30: 5.14 Hand over to userSet the maxim
Page 31 and 32: 6.2.5 Inspect burnerWith the combus
Page 33 and 34: 7.1.3 Removal of front casing7.1.3.
Page 35 and 36: 7.4 Replacement of burner• Isolat
Page 37 and 38: 7.7.1 Replacement of main solenoidv
Page 39 and 40: 7.10 Replacement oftransformer• I
Page 41: 7.15.1 Replacement of water section
Page 45 and 46: Sheet A Check electrical supply and
Page 47 and 48: Sheet C Check Central Heating contr
Page 49 and 50: Sheet E Check fan/flue gas systemDo
Page 51 and 52: Sheet G Check ignition system and g
Page 53 and 54: Sheet J Check D.H.W. OperationDraw
Page 55 and 56: 9.2 Wiring diagram: VUW 242 E / 282
Page 57 and 58: 10. Short parts list Key No. Descri
Page 59 and 60: 11. Supplementaryinformation forTUR

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