Miele NOVOTRONIC T 7644 C User manual

Operating Instructions
for condenser tumble dryer
T 7644 C
To avoid the risk of personal injury or
damage to the appliance, it is
essential that you read these
operating instructions before
installation and use. This maschine
is not approved for use in the
United States. M.-Nr. 07 323 260
en-CA

Disposal of packing material
The packing materials protect the dryer
from damage during transport. They
have been selected for environmental
compatibility and efficient disposal and
can therefore be recycled.
To prevent suffocation, ensure that any
plastic wrappings, bags, etc. are
disposed of safely and kept out of the
reach of children.
Disposing of your old
appliance
Old appliances may contain materials
that can be recycled. Please contact
your local recycling authority about the
possibility of recycling these materials.
Ensure that a discarded dryer presents
no danger to children. When being
stored for disposal remove the door to
the drying compartment.
Saving energy
To avoid unnecessarily long drying
times and increased energy use:
–Let the wash spin in the washer at
maximum spin speed.
You can save about 30% in energy
and time if you spin at 1600 instead
of 800 rpm.
–Use the maximum load for each
drying program. This gives the
optimum energy consumption in
relation to the total amount of
laundry.
– Ensure that the room where the dryer
is located is sufficiently ventilated.
– Clean the lint screen after every use.
– Check the condenser unit from time
to time and clean it when necessary.
Caring for the environment
2

Caring for the environment..........................................2
IMPORTANT SAFETY INSTRUCTIONS.................................5
Description .......................................................8
Operating the dryer .................................................8
Function of Miele condenser dryer .....................................8
Operation of Miele condenser dryer ....................................8
Main Features .....................................................8
Operating the dryer ...............................................10
Control panel .....................................................10
Laundry care ....................................................12
Care symbols.....................................................12
Drying tips .......................................................12
Proper drying ....................................................14
Brief instructions ..................................................14
Options/Delay....................................................17
Gentle ..........................................................17
Buzzer ..........................................................17
Delay ...........................................................17
Program Overview ................................................18
Changing the program sequence....................................21
Switching over from a running program ................................21
- Canceling and selecting a new program ............................21
- Interrupting a program and removing laundry ........................21
Loading or removing laundry.........................................21
Time remaining ...................................................21
Electronic lock ...................................................22
Cleaning and care ................................................23
Emptying the condensed water container...............................23
Cleaning the lint filtration components .................................24
Cleaning without water ...........................................24
Cleaning with water .............................................25
Cleaning the dryer .................................................25
Cleaning the condenser (heat exchanger) unit ...........................26
Removing the condenser unit......................................26
Checking the condenser unit ......................................27
Cleaning the condenser unit.......................................27
Replacing the condenser unit......................................28
Contents
3

Trouble shooting .................................................29
What to do, if...?.................................................29
Test and fault messages.............................................29
Other problems ...................................................31
Replacing the light bulb.............................................34
Customer service.................................................35
Repairs..........................................................35
Program updates ..................................................35
Warranty conditions and warranty period ...............................35
Optional accessories ...............................................35
Installation and connection ........................................36
Front view........................................................36
Rear view ........................................................37
Installation site ....................................................37
Carrying the dryer to the installation site .............................37
Washer-dryer stack..............................................37
Leveling the dryer ...............................................38
Ventilating the installation area .....................................39
Before transport at a later date.....................................39
Draining condensed water externally ..................................40
Arranging the drain hose .........................................40
Hooking up the drain hose (in sink or floor drain) ......................41
Special installation conditions requiring a non-return valve ...............41
Electrical connections ..............................................43
Technical data ...................................................44
Programmable functions...........................................46
Extending the range of drying levels ...................................46
Adjusting buzzer volume ............................................47
Set memory function ...............................................48
Extending cooldown time ...........................................49
Change function of Filter/Vent indication................................50
Adjust keypad tone ................................................51
Changing water conductivity setting ...................................52
Contents
4

,This machine T 7644 C meets all
CSA requirements. This machine is
not approved for use in the United
States.
,WARNING - To reduce the risk of
fire, electric shock, or injury to
persons when using your appliance,
follow basic precautions, including
the following:
~It is essential to read all instructions
before using the appliance.
~The dryer is designed for household
use only and only for drying textiles that
have been washed in water and whose
fabric care label states that they can be
tumble dried. Other uses may be
dangerous. Miele will not be held liable
for damage caused by improper use or
incorrect operation.
~Do not allow children to play on or in
the appliance. Close supervision is
necessary when the appliance is used
near children. Always close the door
after use to prevent child hazards.
~This appliance is not intended for
use by persons (including children)
with reduced physical, sensory or
mental capabilities, or lack of
experience or knowledge, unless they
are supervised whilst using it or have
been shown how to use it by a person
responsible for their safety.
~Before this appliance is removed for
service or discarded, remove the door
to the drying compartment.
~Do not reach into the dryer if the
drum is moving.
~Do not install or store this appliance
where it will be exposed to the weather.
~Do not tamper with the controls.
~Do not repair or replace any part of
the appliance or attempt any servicing
unless specifically recommended in
these operating instructions. Repairs to
electrical appliances should only be
performed by qualified personnel.
Incorrectly repaired machines may
pose a considerable risk to the user.
~Do not use fabric softener sheets to
eliminate static in this dryer. Best
results are achieved when a liquid
softener is used in the washer. Follow
the manufacturers instructions.
~To prevent the risk of fire, the
following textiles must not be dried in
this dryer:
–items which have not been washed.
–items, such as work-wear, exposed
to grease, oils, or other deposits
(such as lotions or cosmetics) in your
dryer. If these items have not been
thoroughly cleaned there is a danger
that they may contribute to a
chemical reaction that could cause
the laundry to ignite when heated
even after being removed from the
dryer.
IMPORTANT SAFETY INSTRUCTIONS
5

–items that have been previously
cleaned, washed, soaked or spotted
with gasoline, dry-cleaning solvents
or other flammable or explosive
substances. They may give off
vapors that could ignite or explode.
–items treated with flammable
cleaning agents or items containing
acetone, alcohol, petrol, stain
remover, wax or chemicals from
buffing, etc.
–items which have been splashed with
hair spray, nail polish remover, etc.
When washing heavily soiled items
ensure that sufficient detergent is
used with a high temperature. If in
doubt wash the item several times.
– items containing foam rubber or
similarly textured rubber-like
materials.
– items with padding or filling (e.g.
pillows or jackets) which have been
damaged. Loose filling could catch
fire.
~WARNING – Never stop a tumble
dryer before the end of the drying cycle
unless all items are quickly removed
and spread out so that the heat is
dissipated.
~Allow the dryer to complete each
stage of the program selected,
including the cooling down phase. This
will ensure that the items being
removed are not too hot to handle
~Clean the lint filter and lint screens
before or after each load.
~Keep the area around the air intake
(toe kick) and adjacent surrounding
areas free from lint, dust and dirt.
~The interior of the machine should
be cleaned periodically by qualified
personnel.
This dryer is intended for
residential use only!
~GROUNDING INSTRUCTIONS
This appliance must be grounded. In
the event of malfunction or breakdown,
grounding will reduce the risk of
electric shock by providing a path of
least resistance for electric current.
This appliance is equipped with a cord
having an equipment grounding
conductor and a grounding plug. The
plug must be plugged into an
appropriate outlet that is properly
installed and grounded in accordance
with all local codes and ordinances.
~WARNING – Improper connection of
the equipment-grounding conductor
can result in a risk of electric shock.
Contact a qualified electrician if you are
in doubt as to whether the appliance is
properly grounded.
~Do not modify the plug provided
with the appliance: if it will not fit the
outlet, have a proper outlet installed by
a qualified electrician.
~A faulty power cord must be
replaced by a genuine Miele power
cord.
~Do not use the dryer without lint
screens or with damaged lint screens.
~Lint screens must be cleaned
regularly!
IMPORTANT SAFETY INSTRUCTIONS
6

~The dryer should not be operated
without its condenser unit.
~Lint screens and door lint filter must
be dried after wet cleaning. Wet
screens may cause faulty dryer
operation!
~Do not place the dryer in a room
where there is a risk of frost occurring.
Temperatures around the freezing point
affect dryer performance.
Condensed water freezing in the pump
and the drain hose can lead to
damage.
Permissible room temperature musts be
between +2°C and +35°C.
~If the condensed water is drained
externally, you must secure the drain
hose against slipping off, if for example
it is hanging from a sink.
If the hose slips off, the condensed
water released can cause damage.
~Condensed water is not potable.
It can endanger the health of people
and pets.
~Keep the room in which the dryer is
installed free of dust and fluff.
Dirt particles in the incoming cooling air
impair performance.
~Do not sit or lean on the door. The
dryer might tip over.
~Close the door after every drying
cycle. In this way you can prevent
–children from trying to climb into the
dryer or leaving objects inside it.
–Pets or small animals from getting
into the dryer.
~Do not hose down the dryer.
Accessories
~Accessory parts may only be
attached or installed when they have
been expressly approved by Miele.
If other parts are added or installed,
guarantee, performance and/or product
liability claims are invalidated.
The manufacturer will not be held
liable for damage caused by failure
to comply with the safety instructions
and warnings.
SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
7

Operating the dryer
Dear Customer,
Thank you for choosing Miele
condenser (heat-exchanger) dryer!
Function of Miele condenser
dryer
The condenser dryer evaporates water
from damp clothes.
The water vapor is then condensed and
collected in a special container.
Operation of Miele condenser
dryer
The condenser dryer circulates air
(trapped with wet laundry inside a
reversibly rotating drum) via lint filters,
heat exchanger and heaters, back into
the drum in a closed loop.
The vapor condenses inside the heat
exchanger and is collected in a
condensed water container.
The heat exchanger (condenser) needs
cooling, so the dryer circulates ambient
air, through separate channels across
heat exchanger, in an open loop. (the
two air flows do not mix).
Returning ambient air warms up the
room with dry heat.
Practically all energy, taken from the
electrical wall outlet, remains in the
room as dry heat.
Main Features
1. No outside venting is required:
The dryer operates on
heat-exchange principle.
Ideal for condominiums – needs
only a regular Canadian dryer wall
outlet and room air for cooling.
Saves space (normally taken by a
vent).
2. No depressurization,
3. No burden on dwelling’s existing
venting system,
4. High energy efficiency:
Axial air flow.
Automatic moisture sensing and
drying stage termination.
No venting to outside = the electrical
energy is not blown outside, but
stays in the room in form of dry heat
(as opposed to a vented dryer).
This dry heat helps to keep a house
warm in cold months.
By helping to heat the house in
winter, condenser dryer lowers
overall energy needs of a house,
thus becoming effectively more
energy efficient than a vented dryer.
Description
8

5. Laundry care – anti-crease action
and roll-up prevention:
To limit wrinkling the dryer performs the
following actions:
5.1. Tumble drying with drum reversal
(prevents roll-ups of laundry,
creasing and uneven drying),
5.2. Constantly measures the
temperature of air coming into and
leaving the drum,
5.3. Cycles two heater sections for 0,
half and full power, to control
drum’s temperature,
5.4. Automatic drying stage
termination, after the desired
Dryness level of laundry is
reached,
5.5. Cooling down with tumbling and
drum reversal,
5.6. Anti-crease with drum reversal:
–axial air flow in the drum:
for uniform drying.
–smooth stainless steel drum:
for air cushioning of tumbling
laundry and reliable residual
moisture sensing.
To do all this, the dryer is
equipped with systems:
i. water conductivity metering,
ii. sensing of laundry’s residual
moisture,
iii. software,
iv. reversing drum drive.
Description
9

Control panel
aDisplay
bDelay button
This button has a dual function:
- Selecting the duration of the
Timed cold and Timed warm
programs.
- Pre-selection of start time.
cBuzzer button
The end of the program is signaled
audibly.
dFault indicator / Optical interface
Description: See "Problem solving /
Customer service" section.
eStart/Stop button
Starts and stops a program.
Interrupts a program when pressed.
Flashes during program selection
and lights once the program starts.
fGentle button
Delicate fabrics are dried at a lower
temperature.
gDryness button
Indicator lights identify the drying
level selected.
hProgram selector
Indicator lights identify the program
selected.
iDoor button
This button opens the door
independently of the power supply.
jI-On/0-Off button
For switching the dryer on and off.
Operating the dryer
10

Display
The following functions are selected
from the display:
–Delay
–Selecting duration of timed
programs.
–Programmable functions.
The display also shows:
–Program duration.
–Program stage:
Drying
Cooling down
End.
– Test and fault messages.
Program duration/ Estimated time
remaining
When a program is selected, the
estimated time remaining will be
displayed. This is to be considered an
estimate only.
The following factors can lead to
variations in the time remaining
estimate: Residual moisture after
spinning; type of fabric; size of load;
ambient temperature, or fluctuations in
the power supply.
The adaptive electronics constantly
adjusts to the individual wash load to
ensure a more accurate estimate of
time remaining. This estimate is
permanently monitored during drying,
which in some cases can lead to a
change in the estimate.
In this way, the delicate and smoothing
programs can end earlier, when a
certain temperature is reached. This
can happen with particularly fine
fabrics, very small loads, or if items
have previously been dried.
Delay
The delay time selected will be
displayed.
The delay time countdown begins after
pressing the Start button.
Once the time delay expired, the
estimated program duration will appear
in the display and the drying begins.
Programmable functions
The programmable functions can be
used to adapt the dryer to your
personal requirements. In programming
mode, the display will show the function
selected.
Operating the dryer
11

Care symbols
Drying
qNormal/higher temperature
rreduced temperature: select
Gentle
(for delicate fabrics)
sNot suitable for dryer
Ironing and rotary ironing
Ivery hot
Hhot
Gnot very hot
JDo not iron/rotary iron
Drying tips
– Always check the weight
recommendation for maximum loads
as listed in the "Program Overview"
section.
Overloading will cause wear and
tear on the laundry, give a poor
drying result and cause more
creasing.
–Do not dry fabrics that are still
soaking wet! After washing, spin
fabrics for at least 30 seconds.
–Dry mixed loads of cottons, colors
and easy-care fabrics in the in the
Express program.
–Open jackets so that they dry evenly.
–Woolens and wool blends tend to
mat and shrink. Only handle these
fabrics in the Woolens program.
–The linings of down-filled garments,
depending on quality, tend to shrink.
Handle these fabrics only in the
Smoothing program.
– Pure linens are dried only when
indicated on the care label.
Otherwise the fabric may become
rough. Handle these fabrics only in
the Smoothing program.
– Cottons (such as T-shirts and
underwear) depending on quality,
often shrink at the first wash.
Therefore: to avoid further shrinkage,
do not over-dry these textiles.
–Starched laundry may be dried. To
achieve the usual finish, however,
use a double amount of starch.
–Wash new colored fabrics separately
before the first drying. Do not dry
them together with light-colored
fabrics since their colors may run
and discolor other garments or even
plastic dryer components.
Laundry care
12

–Wrinkling increases with larger loads.
This especially occurs with very fine
fabrics as used in shirts and blouses.
To limit wrinkling the dryer performs the
following actions:
1. Tumble drying with drum reversal
(prevents roll-ups of laundry,
creasing and uneven drying),
2. Constantly measures the
temperature of air coming into and
leaving the drum,
3. Cycles two heater sections for 0, half
and full power,
4. Automatic drying stage termination,
after the desired Dryness level of
laundry is reached. To do this, the
dryer is equipped with systems:
- water conductivity metering,
- sensing of laundry’s residual
moisture,
- software.
5. Cooling down with tumbling and
drum reversal,
6. Anti-crease with drum reversal.
In cases of doubt, reduce the load by
dividing it.
Use the Dress shirts program.
Laundry care
13

Brief instructions
The operating steps identified with
numbers(A,B,C, ...) may be used as
short-cut instructions.
APreparing the laundry
Loosen the washed garments and sort
them by: . .
. . . desired drying level,
. . . type of fabric and finish,
. . . size,
. . . same residual moisture content
after spinning.
This will produce very even drying.
,Remove foreign objects like
detergent dispensing devices from
the laundry. They can melt and
damage the dryer and the wash.
– Check hems and seams to ensure
that linings don't come out.
– Close duvet covers and pillowcases
to prevent small items from getting
inside.
–Fasten hooks and close buttons.
–Tie fabric belts together.
BTurn on the dryer
You may also switch the dryer on after
loading it, as the drum will not be
illuminated, to save energy.
^To turn it on, press the I-On/0-Off
button.
CLoading the dryer
^Press the Door button to open.
^Place the laundry loosely in the drum.
Do not exceed maximum loads
specified in the "Program Overview"
Section.
Overloading may cause wear and
tear on the laundry and adversely
affects drying.
^Before closing the door, check that
the lint filter is properly inserted in the
door casing.
Ensure that no small items are
jammed in the door, because they
might otherwise be damaged.
Proper drying
14

DSelect program
^Select the desired program.
The indicator light for the program
selected lights up.
Other indicator lights for drying levels
or extras may be lit, and drying times
displayed.
Dryness level selection in programs:
–Normal, Wrinkle-free, Express, Dress
shirts, denim/jeans
^Press the button repeatedly until the
desired indicator light is lit.
For Normal any dryness level can be
selected, but selection is limited in
other programs.
Note: The estimate of time remaining
shown in the display varies with each
new program selection.
Woolens and Smoothing programs:
–cannot be altered.
Timed program
The Delay button flashes when Timed
cold or Timed warm programs are
selected.
^Repeatedly press the Delay button
until the required duration appears in
the display.
Drying time can be selected in
10-minute increments from 20 minutes
up to 2hours.
EExtra options/Select Delay
^Press button to select the following
options:
Gentle, Buzzer, Delay options (see
"Options/Delay").
Anti-Crease action always activates
at program's end (see next page).
Please note: Delay is not possible in
combination with the Timed warm and
Timed cold programs.
Proper drying
15

FStarting the program
The Start/Stop button flashes during
program selection. This means that a
program can be started.
^Press the Start/Stop button.
The Start/Stop button lights.
Drying appears in the display and the
time remaining is counted down.
Before the end of a program
After the drying phase finished a
cooldown phase follows.
The following programs have no
cooldown phase: Woolens, Smoothing.
GEnd of program - Remove laundry
0and End appear in the display to
indicate the program end. The buzzer
sounds at intervals (when selected).
After the program end the drum rotates
reversible in intervals if clothes are not
removed (Anti-crease action). This
helps to prevent creasing for up to 2
hours.
^Press the Door button.
^Open the door.
^Remove the laundry.
Check that the drum is empty.
Laundry left behind may be
damaged if dried again.
To save energy, the drum light turns off
after a few minutes when the dryer is
not operating and the door is open.
^To shut it off, press the On/Off button.
^Clean the lint filter and lint screens.
^Close the door.
^Empty the condensed water
container (if the condensed water is
not drained off externally).
^The condenser should be checked at
intervals and cleaned as necessary
(See the section on "Dryer Care").
Proper drying
16

Gentle
Delicate fabrics (with the rsymbol on
the care label, such as acrylics) must
be dried at lower temperatures for
longer durations.
On some programs Gentle is
permanently set and cannot be
deselected.
Buzzer
At the end of the program a buzzer
sounds at intervals, for a maximum of
1 hour.
A continuous warning tone for fault
messages sounds whether the buzzer
is on or off.
Delay
With the Delay option, you can select a
later program start time. Program start
can be delayed by 30 minutes up to a
maximum of 24 hours. This enables
you, for instance, to take advantage of
night electricity rates.
After program selection:
^Repeatedly press the Delay button
until the required duration appears in
the display.
–The Delay indicator light flashes.
–Times of
up to I0^ are selected in 30-minute
steps,
more than I0^ in one-hour steps.
–If you keep the Delay button pressed
in, the time will continue to increase
up to 24^.
Starting
^Press the Start/Stop button.
–The Delay indicator light comes on.
The Delay counts down to program
start as follows:
–More than I0^, in whole hours.
–Less than I0^, in minutes.
The drum will turn briefly every hour to
prevent creasing.
Canceling / altering Delay
^Press the Start/Stop button.
The Delay is cancelled.
^Repeatedly press the Delay button
until the required duration appears in
the display.
^Press the Start/Stop button.
The Delay resumes from the beginning.
Adding laundry
You can add laundry while the Delay is
still counting down:
^Switch off the dryer.
^Open the door and add the laundry.
^Close the door and switch on the
dryer.
Options/Delay
17

Normal
Extra dry, Normal
Fabrics Single- and multi-layered cotton such as: hand towels, T-shirts, baby
clothes.
Note –Select Extra dry for multi-layered and extra thick fabrics.
–Do not use Extra dry to dry jersey fabrics like T-shirts and baby
clothes - they may shrink.
Gentle To be selected for delicate fabrics with the care symbol r.
Hand iron, Rotary iron
Fabrics Cotton or linen fabrics. For example: Table linens, bed linens,
starched laundry.
Note –You can keep laundry moist if you roll it up until ready to iron it.
Gentle To be selected for delicate fabrics with the care symbol r.
Wrinkle-free
Extra dry, Normal, Hand iron
Fabrics Easy-care fabrics in synthetics, cotton or blends. For example:
sweaters, dresses, trousers, skirts, tablecloths.
Note – To reduce creasing even more, select Hand iron and reduce the
load to 1.5 kg*.
– Fabrics are dried with low creasing with the Hand iron drying
program, depending on fabric type and load.
Gentle To be selected for delicate fabrics with the care symbol r.
Mixed
Normal, Hand iron
Fabrics Delicate items made of synthetic fibres, blends or cottons such as
shirts, blouses, lingerie, appliqué fabrics.
Gentle Unavailable.
Program Overview
18

Woolens
Fabrics Woolens.
Note –Remove items immediately after the end of the program while still
slightly damp. Allow items to air dry.
Gentle Unavailable.
Smoothing
Fabrics –Cotton or linen fabrics.
–Synthetics, cotton or blends. For example: cotton trousers, jackets,
shirts.
Note –Program to reduce creases formed during spin cycle in washer.
–Remove garments immediately the program ends and air-dry
Gentle Unavailable.
Express
Normal, Hand iron
Fabrics Mixed loads of fabrics for the Normal and Wrinkle-free programs.
Dress shirts
Normal, Hand iron
Fabrics Shirts and blouses.
Gentle To be selected for delicate fabrics with the care symbol r.
Denim / Jeans
Normal, Hand iron
Fabrics Denim material like trousers, jackets, skirts or shirts.
Gentle To be selected for delicate fabrics with the care symbol r.
Program Overview
19

Timed cold
Fabrics –Any fabric needing airing.
Timed warm
Fabrics –Additional drying of multi-layered garments which dry unevenly
owing to their design: e.g., jackets, pillows and voluminous fabrics.
–Drying individual laundry items: e.g. bath towels, bathing suits, dish
cloths.
Note To start with, do not select the longest time. Determine the most
suitable time by trial.
Tip: Use Timed warm to remove or reduce unwanted odors from clean
cotton clothing (duration: 1/2-1 hour). The freshening effect is
reinforced if you moisten the clothing or use a sheet of fabric
conditioner before airing them. Odor reduction will be less for
synthetics.
Gentle To be selected for delicate fabrics with the care symbol r.
Program Overview
20