DeDietrich AD254 Fehlerbehebungshandbuch

CDI4

Wire remote control

AD254 - AD285

C002331-A

Installation, User

and Service

Manual

300020537-001-02

Contents

1 Description ..................................................................................................31

1.1 Description of the keys and the display ..............31

1.2 Energy savings management ...............................32

2 Installation ...................................................................................................33

2.1 Installing the remote control ................................33

2.1.1 Choose a location ....................................................33

2.1.2 Installing the remote control .....................................33

2.2 Electrical connections ..........................................34

3 Operating instructions ...............................................................................35

3.1 Operating the appliance .......................................35

3.1.1 Temporarily adjusting the comfort or reduced

temperature ..............................................................35

3.1.2 Modifying the comfort or reduced temperature ........35

3.1.3 Temporarily activating the comfort mode x ............36

3.1.4 Temporarily activating the reduced mode m ............36

3.1.5 Activating the holiday mode g .................................36

3.1.6 Selecting a timer programme ...................................37

3.1.7 Forcing domestic hot water production ....................37

3.2 Extended use of the appliance .............................37

3.2.1 Setting the time and date .........................................37

3.2.2 Customising a timer programme ..............................38

3.2.3 Calibrating the room sensor .....................................38

3.2.4 Changing the domestic hot water temperature ........39

3.2.5 Selecting the principal display ..................................39

4 Troubleshooting .........................................................................................41

4.1 Display of the faults ..............................................41

4.2 Checking the memory version of the remote

control ....................................................................41

Contents

30 27/06/2012 - 300020537-001-02

1 Description

1.1 Description of the keys and the display

C002541-A

MODE r

AUTO

1 2 3 5 6 74

0 2 4 6 8 10 12 14 16 18 22 2420

°F

°C

°F

°C

AComfort temperature setting key

BReduced temperature setting key

COperating mode selection key

DDHW override key

ERotary setting button and push button

FTimer programmes graphic display bar

4Dark area b : Heating period in comfort mode or DHW

production enabled

4Light area v : Heating period in reduced mode or

DHW production not enabled

GThe highlighted figure indicates the current day (1 =

Monday)

HTemperature display

4I Outside temperature

4O Ambient temperature

INumber display (current time, adjusted values, parameters,

etc.)

bSelection of the comfort mode period x

4Steady symbol: Comfort mode selection active

4Flashing symbol: Comfort mode selection inactive

vSelection of the reduced mode period Vm

4Steady symbol: Reduced mode selection active

4Flashing symbol: Reduced mode selection inactive

AD254 - AD285 1. Description

27/06/2012 - 300020537-001-02 31

PIndicator showing the end of override

AUTO Operation in automatic mode according to the timer

programme

xComfort mode: The symbol is displayed when a DAY

override (comfort) is activated

4Flashing symbol: Temporary override

4Steady symbol: Permanent override

mReduced mode: The symbol is displayed when a NIGHT

override (reduced) is activated

4Flashing symbol: Temporary override

4Steady symbol: Permanent override

gHoliday mode: The symbol is displayed when a HOLIDAY

override (antifreeze) is activated

4Flashing symbol: Holiday mode programmed

4Steady symbol: Holiday mode active

wCooling mode: The symbol is displayed when a COOLING

override is activated in summer

4Flashing symbol: Temporary override

4Steady symbol: Permanent override

pSummer mode: The heating is off. Domestic hot water

continues to be produced

bWINTER mode: Heating and domestic hot water working

rThe symbol is displayed when domestic hot water

production is available on the installation

mManual mode

1.2 Energy savings management

If no actions are performed for 20 seconds, the remote control goes into

standby (backlight off).

Pressing any key or using the rotary button switches on the backlight.

1. Description AD254 - AD285

32 27/06/2012 - 300020537-001-02

2 Installation

2.1 Installing the remote control

2.1.1. Choose a location

Choose a location in a "reference" room representative of the room

temperature to be taken into account if the remote control is used as a

room sensor.

Locations in the room that are not recommanded:

Enclosed, exposed to solar radiation, heated by a flue duct, exposed to

cold or hot air currents from air ducts, close to an open fireplace, a heat

source (television), behind a curtain.

2.1.2. Installing the remote control

1. Drill 2 holes with a Ø of 6 mm.

2. Put the plugs in place.

3. Tighten the 2 screws.

4. Connect either a 2-wire telephone cable or an electrical cable with

a cross-section of up to 2x1.5 mm² to the 2-pin connector. The wires

can be interchanged.

5. Installing the remote control.

200

1500

8800N036-B

A000850-B

A000854-A

AD254 - AD285 2. Installation

27/06/2012 - 300020537-001-02 33

2.2 Electrical connections

WARNING

Only qualified professionnals may carry out electrical

connections, always with the power off.

1. Cut the power supply to the boiler.

2. Accessing the boiler PCB SCU.

¼ Refer to the installation and maintenance instructions of the

boiler (Chapter: Electrical connections).

3. Connect the remote control to the terminal block that corresponds

to a circuit's room sensor.

WARNING

Under no circumstances must sensor cables (very low

voltage) be placed in cable ducts or channels carrying

cables supplying 230 V. Furthermore, a minimum distance

of 10 cm should be kept between cables supplying very low

voltage and cables supplying 230 V.

4. Turn the boiler on.

When switched on for the first time, the remote control will

show each segment on the display while it synchronises

itself with the boiler.

A000851-A

0-10V

S AMB C

4 3 2 1 2 1

+ -

S AMB B

2 1

S AMB A

2 1

S SYST + TA -

S ECS S EXT S DEP C

2 12 12 12 1 2 1

S DEP B

2 1

SCU

MODE r

x0 2 4 6 8 10 12 14 16 18 22 2420

°C

2 x 0,75 mm2mini

2. Installation AD254 - AD285

34 27/06/2012 - 300020537-001-02

3 Operating instructions

3.1 Operating the appliance

3.1.1. Temporarily adjusting the comfort or

reduced temperature

CAUTION

Function available depending on the model of control panel.

It is possible temporarily to adjust the comfort or reduced temperature

by up to 3 °C compared with the programmed temperature. Starting in

the principal display, turn the rotary button and select the desired

correction.

The display shows the current time and the temperature correction.

Each time the mode is changed (comfort/reduced), the

temperature returns to the programmed value.

3.1.2. Modifying the comfort or reduced

temperature

To modify the comfort temperature, proceed as follows:

1. Press the Cx key.

2. On the left of the display you can see the comfort temperature and,

on the right, the room temperature measured. The bar graph

displays the heating programme for the current day.

To modify the comfort temperature, turn the rotary button.

3. To confirm, press the rotary button.

Proceed in the same way to modify the reduced temperature by

pressing Cm.

C002405-B

MODE r

AUTO

1 2 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

°C

C002402-C

MODE r

1 2 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

°C°C

AD254 - AD285 3. Operating instructions

27/06/2012 - 300020537-001-02 35

3.1.3. Temporarily activating the comfort mode x

It is possible temporarily to override the timer programme and force the

comfort mode for a given period. To do this, proceed as follows:

1. Press the MODE key several times until the symbol x is underlined.

2. Turn the rotary button to the right to modify the end time of the

override.

For a permanent override, select 24:24 by turning the rotary button

to the left.

3. To confirm, press the rotary button.

3.1.4. Temporarily activating the reduced mode m

It is possible temporarily to override the timer programme and force the

reduced mode for a given period. To do this, proceed as follows:

1. Press the MODE key several times until the symbol m is underlined.

2. Turn the rotary button to the right to modify the end time of the

override.

For a permanent override, select 24:24 by turning the rotary button

to the left.

3. To confirm, press the rotary button.

3.1.5. Activating the holiday mode g

To activate the holiday mode and set the dates of your holiday, proceed

as follows:

1. Press the MODE key several times until the symbol g is underlined.

2. Turn the rotary button to the right to change the date (day:month) or

the number of days (xx) to the end of the override.

For a permanent override, select 7 - 7 by turning the rotary button

to the left.

3. To confirm, press the rotary button.

C002398-D

MODE r

AUTO

1 2 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

C002399-D

MODE r

AUTO

1 2 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

C002400-D

MODE r

AUTO

1 2 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

3. Operating instructions AD254 - AD285

36 27/06/2012 - 300020537-001-02

3.1.6. Selecting a timer programme

1. Press the MODE key several times until the symbol AUTO is

underlined.

2. To select the desired timer programme (P1, P2, P3 or P4), turn the

rotary button.

3. To confirm, press the rotary button.

3.1.7. Forcing domestic hot water production

4For temporary domestic hot water production lasting 1 hour, press

the key r. The line underlining the symbol r flashes.

4For permanent domestic hot water production, press the key r for

5 seconds. The line underlining the symbol r is steady.

To cancel the override, press the key r. The line underlining the symbol

r is no longer displayed.

3.2 Extended use of the appliance

3.2.1. Setting the time and date

1. Press the MODE and r keys simultaneously for 2 seconds. The

time is displayed.

2. Press the rotary button.

3. The minutes flash.

To modify the minutes, turn the rotary button.

To confirm, press the rotary button.

4. The hours flash.

To modify the hours, turn the rotary button.

To confirm, press the rotary button.

5. The number of the day flashes.

To modify the day (1 = Monday, 2 = Tuesday, etc.), turn the rotary

button.

To confirm, press the rotary button.

6. To return to the principal display, press the MODE key or wait 20

seconds.

To go back to the previous display, press the key r.

C002392-C

MODE r

AUTO

1 4 5 6 7

0 2 4 6 8 10 12 14 16 18 22 2420

AUTO

C002397-E

MODE r

AUTO

x0 2 4 6 8 10 12 14 16 18 22 2420

°C

A000858-A

MODE r

A000853-A

MODE r

x0 2 4 6 8 10 12 14 16 18 22 2420

1 2 34 5 6 7

AD254 - AD285 3. Operating instructions

27/06/2012 - 300020537-001-02 37

3.2.2. Customising a timer programme

CAUTION

P r : Function available depending on the model of control

panel.

Only the timer programmes P2, P3, P4 and the domestic hot water

programme P r can be modified.

1. Press the MODE and r keys simultaneously for 2 seconds. The

time is displayed.

2. Turn the rotary button to select the timer programme to be

modified. To confirm, press the rotary button.

To go back to the previous display, press the key r.

3. All of the days flash. The new programme will be active every day

of the week.

To modify the programme for a particular day, press the rotary button

several times until the desired day flashes.

4. Turn the rotary button to the left until 0.00 is displayed. The first

segment of the graphic bar for the timer programme flashes.

5. b : Comfort mode selection

Press the Cx key. The symbol b is steady, the selection mode for

the comfort time ranges is active.

To select a comfort time range, turn the rotary button to the right.

The zone selected is displayed under b on the graphic bar.

v : Reduced mode selection

Press the Cm key. The symbol v is steady, the selection mode for

the reduced time ranges is active.

To select a reduced time range, turn the rotary button to the right.

The zone selected is displayed under v on the graphic bar.

6. To return to the principal display, press the MODE key or wait 20

seconds.

3.2.3. Calibrating the room sensor

1. Measure the room temperature with a thermometer.

2. Press key Cx and Vm simultaneously for 5 seconds.

The symbol CAL and the current temperature are displayed.

A000858-A

MODE r

C002393-C

MODE r

x0 2 4 6 8 10 12 14 16 18 22 2420

C002436-A

MODE r

x0 2 4 6 8 10 12 14 16 18 22 2420

1 2 3 4 5 6 7

2 3 4 5 61 7

C002430-A

3. Operating instructions AD254 - AD285

38 27/06/2012 - 300020537-001-02

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