Zanussi Series 51 New User manual

SERVICE MANUAL
TUMBLE-DRYERS
TUMBLE-DRYERS
SERIE P51 NEW
© ELECTROLUX ZANUSSI
ELETTRODOMESTICI S.p.A.
VIA GIARDINI CATTANEO, 3 Publication-No.
I - 33170 PORDENONE (ITALY) 599 33 15-85/6
Fax [phone] 970219
EN/SERVICE/EB

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INDEX
Operating principle ............................................... page. 4
Constructional features ........................................... page. 5
Cabinet ......................................................... page. 5
Drum ........................................................... page. 5
Main electronic parts ............................................. page. 7
Heating unit ..................................................... page. 7
Thermostats ..................................................... page. 7
Timer ........................................................... page. 8
Fan motor unit ................................................... page. 8
Accessibility & serviceability ......................................page. 9
Worktop ........................................................page. 9
Timer ........................................................... page. 9
Indicator light ....................................................page. 9
Door microswitch ................................................page. 9
Control panel ....................................................page. 9
Controls support ................................................. page. 9
Cabinet side ..................................................... page. 10
Motor ........................................................... page. 10
Capacitor ....................................................... page. 10
Thermostat ......................................................page. 10
Back panel cover ................................................page. 11
Heating element ................................................. page. 11
Rear drum support ............................................... page. 11
Back panel ......................................................page. 12
Drum ........................................................... page. 12
Sealing felt ring ..................................................page. 12
Door ............................................................page. 13
Filter ............................................................page. 13
Door reversal ....................................................page. 13
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OPERATING PRINCIPLE
1 - Heating unit
2 - Drum
3 - Door
4 - Filter
5 - Fan
6 - Exhaust duct
Cold air
Warm air
This appliance is of the type discharging humid air in the ambient. In brief, the fan (5) intakes cold air from
the ambient and forces it through a heating unit (1).
The warm air then passes through the drum (2) in which the laundry to be dried has been placed, thus
removing humidity present in it.
The air then passes through the lint filter (4) and flows out through the discharge pipe (6) into the ambient
from which it was originally taken.
A flexible hose may be connected to this discharge pipe so as to discharge the humid air somewhere else.
The hose mustn't be longer than 2 m.
CONSTRUCTIONAL FEATURES
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CABINET
1 - Base
2 - Flexible hose
3 - Ring nut
4 - Cap
5 - Back panel cover
6 - Back panel
7 - Side panels
8 - Cross piece
9 - Duct
10 - Front panel
11 - Joint
12 - Filter
Cabinet/Side panel/Back panel/Base
Parts made of painted sheet metal fastened together by means of self-threading screws and hooked to the
base.
The base is made of Carboran material.
DRUM
1- Front flange
2 - Central band
3 - Back flange
4 - Internal ribs
Parts 1-2-3 are seam-folded together. The tumble ribs are fastened by means of screws.
Parts making up the drum may be of sheet steel (AISI 430), of galvanised sheet-iron or may be of both zinc
and steel. The drum shaft is riveted to the back flange.
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Air tightness at the back
1 - Felt ring
2 - Drum
3 - Back panel
Drum back support
4 - Antifriction washer
5 - "Benzing" ring
6 - Back panel
7 - Drum shaft
8 - Support provided with
a bushing fitted on the back panel
Front support and drum seal
9 - Supporting flange
10 - Felt ring
11 - Drum
Drum drive system
- Motor-to-drum belt drive (1)
- Motor (2) fastened at the bottom to the side
- Belt stretcher (3) to increase the belt's winding angle
- Fan blade-assembly directly mounted to the motor shaft
- Drum reversibility on some models. The heating element in
this case is excluded during the anticlockwise rotation phase
due to the reduced ventilation
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MAIN ELECTRICAL PARTS
HEATING UNIT
1 - Filament heating element
2 - Safety thermostat
3 - Manually resettable thermostat
4 - Ceramic boards
5 - Casing
Double-filament heating element provided with ceramic boards and galvanised sheet iron frame. The heating
element power can be, according to the models, 1400 + 600 or 1400 + 1000 W.
Two overheat protection thermostats are fastened to the casing.
Safety thermostat
Two thermostats are used to cut out the heating elements in case of ventilation failure.
Safety thermostat cut-out in case of ventilation failure (automatically resettable)
Safety thermostat cut-out In case of ventilation failure (manually resettable) by depressing the button
CYCLING THERMOSTAT
Automatically resettable cycling thermostat to limit maximum air temperature. Manually resettable cycling
thermostat to limit maximum air temperature .
Usually closed , opens at 54ºC.
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TIMER
- Electromechanical timer including two timing sections for the drying time.
The first from 0 to 120 min. for drying fast fabrics.
The second from 0 to 80 min. for drying delicate fabrics. When the delicate fabrics section is selected one of
the heater branches is excluded.
It also includes fast cams for drum tumbling reversal and to exclude the heating function.
Manual rotation must always be clockwise.
FAN MOTOR UNIT
Single-phase asynchronous motor provided with an overload cut out.
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ACCESSIBILITY & SERVICEABILITY
FROM THE WORKTOP
- Disassemble the worktop by unscrewing the two back screws and sliding it out towards the back of the
machine
1 - Timer
2 - Indicator light
3 - Door microswitch
TIMER
Remove the knob (see figure), remove the knob flange (see figure);
undo the two fastening screws. On some models remove the control
panel before removing the knob.
INDICATOR LIGHT
Widen out the conveyor's back tags and
slide out the lamp.
DOOR MICROSWITCH
Disconnect leads from the microswitch, widen fastening tags and
slide it out upwards and then inwards
CONTROL PANEL
Disengage it from the controls support interior (fastening teeth)
CONTROLS SUPPORT
Unscrew the two top screws and slide it out upwards
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FROM THE RIGHT HAND SIDE
- Disassemble the worktop
- Disassemble the right hand side by unscrewing the two top screws fastening it to the front panel and to the
back panel and then slide it out upwards and then outwards.
4 - Motor/fan unit
5 - Capacitor
6 - Tension spring
7 - Cycling thermostat
MOTOR
Disengage the tension spring, remove the belt from the pulley, disconnect the leads from the terminal board
and from the condenser, disengage the tags fastening the front and back motor supports and rotate them
outwards until they slide out of their seatings.
CAPACITOR
Disconnect leads, lower the engaging tags and slide the capacitor out of its seating by pulling it towards the
machine's back panel.
CYCLING THERMOSTAT
Widen the fastening tags and remove it from its seating.
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FROM THE BACK PANEL COVER
- Undo the screws fastening the back panel
9 - Heating element
10 - Back drum support
HEATING ELEMENT
Remove the two screws fastening it to the back panel, disconnect wiring.
SSAFETY THERMOSTATS
In case of failure, replace the whole heating unit.
REAR DRUM SUPPORT
Remove the "Benzing" ring and the spacer ring from the drum's shaft, remove the three screws fastening the
support and pull outwards.
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FROM THE BACK PANEL
After having removed the back panel cover, remove the worktop, undo the screws provided at the top and
fastening the back panel to the cross bar and to the sides, and at the back undo the screws fastening the
back panel to the base, disengage the tags provided on the base and slide out the back panel.
3 - Door microswitch
4 - Motor
5 - Capacitor
7 - Cycling thermostat
14 - Front sealing felt ring
DRUM AND DRIVE BELT
They may be removed after having removed the back panel.
FRONT SEALING FELT RING
It may be removed after having removed the back panel.
BACK SEALING FELT RING
Widen out the back panel tags and slide out the back sealing felt ring
WARNING!
Do not damage the felt ring when refitting it.
The seam of the back sealing felt ring must be turned towards the bottom of the black panel.
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ACCESS FROM THE DOOR
DOOR
To accede to the door undo the screws fastening the hinge
FILTER
To replace the filter screen, without disassembling the
front panel and the duct, operate as follows:
- take out the filter screen by means of pliers as shown
in figure. Make sure that the plastic supports are not
being damaged.
- fit the new filter
DOOR REVERSAL
On some models it is possible to reverse the door
opening.
Operate as follows:
1 - Remove the door by unscrewing the two screws
fastening the hinge to the cabinet
2 - Remove the safety catch and the plug by
bending the two fastening tags by means of a
screwdriver
3 - Remove the plug with a screwdriver by bending
the two fastening tags
4 - Remove the plastic plate by unscrewing the two
fastening screws
5 - Refit the plug on place of the safety catch
6 - Refit the safety catch
7 - Refit the plastic plate on place of the hinge
8 - Refit the door and fasten the hinge to the cabinet
with the two screws.
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