Program reading, Auto automatic mode, Manu manual mode – DE DIETRICH AD248 thermostat User Manual

Page 6: Temporary temperature modification, Prolonged absence mode (holidays), Installer’s guide, Technical specifications

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6

Creating a P4 program
A 24-hour profile composed of 48 thermometers
at the bottom of the display panel allows your
programme composition to be easily viewed.

A half-empty thermometer corresponds to
30 minutes at reduced temperature.

A full thermometer corresponds to
30 minutes at comfort temperature.

Example: programming 3 temperature periods for Friday:
6 a.m. till 8 a.m., noon till 2 p.m. and 6 p.m. till 10 p.m.

From the Auto, mode press the

PROG P1-P4

button.

Press the

DAYS 1-7

button until a pointer

appears under the day you wish to program
(Friday in our example).

Press the

PROG P1-P4

button until the P4

program number flashes in the right side of the
screen. Your display panel indicates time as

00hh0000 and the first thermometer flashes on
the 24-hour profile.

Press the

button several times to obtain

66::0000 the time to the wall displayed advances
by 30 minutes for each short press.
Continuous pressing accelerates the time
run-off.

• Press the

button several times to obtain

88::0000.

• Press the

button several times to obtain

1122::0000.

• Press the

button several times to obtain

1144::0000.

• Press the

button several times to obtain

1188::0000.

• Press the

button several times to obtain

2222::0000.

!

If you make a mistake (e.g. 11:30 instead of
12:00) use the

+

or

buttons to advance or

return and correct with the

and

thermometer buttons.

Press the

OK

button.

The following day automatically appears.

Press the

MODE

button to return to

automatic mode.

Program reading

You can check your programming.

From Auto mode press the

PROG P1-P4

button.

With the

DAYS 1-7

button select the day

from 1 to 7 and check your programming on
the 24-hour profile at the bottom of the
display panel (see example above).

Press the

MODE

button to return to

automatic mode.

Auto automatic mode

You pass into automatic mode by pressing the

MODE

button until the pointer

appears under

Auto.
In automatic mode Thermostat adapts to your life
style by running the programs you have selected.

Manu manual mode

Manual mode transforms your device into a simple
thermostat. It allows you to maintain a constant
temperature in your dwelling (set to a temperature
of between 5°C and 30°C).

Press the

MODE

button to position the

pointer

under Manu.

Press

+

or

to adjust to the desired tempe-

rature (for instance 22.5°C).
To quit the Manu mode, press

MODE

and

reposition the pointer

under Auto.

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

Temporary temperature

modification

In automatic mode this very useful function allows
you to modify ambient temperature temporarily.
To increase the temperature,
• press the

+

button (several times, if necessary).

To decrease the temperature,
• press the

button (several times, if necessary).

The current temperature level indicator (com-
fort or reduced) will begin flashing.
This modification ends with the next change in
programmed temperature.
To return to the initial program press

MODE

and reposition the pointer

under Auto.

The current temperature level indicator (comfort
or reduced) will stop flashing when the temporary
modification comes to an end.

Prolonged absence mode

(holidays)

This mode protects your dwelling from freezing by
maintaining a minimum adjustable temperature in
your dwelling during your absences (from 1 to 99
days).You can program the length of your absence
so that the temperature rises for your return.

Press the

button.

Set the length of your absence in days (from 1 to
99 days) with the

+

and

the current day counts

as one.

Validate with

OK

button.

Set the desired temperature level during your
absence with the

+

and

buttons.

Validate with the

OK

OKbutton.Remain in this

mode. To cancel and return to automatic mode,
press

MODE

.

Installer’s guide

The programmable thermostat must be installed
about 1.5 metres from the floor, on an interior wall,
away from direct sunlight and any source of heat,
such as TV set, lighting, draught, etc.

Pull cover down and remove the screw.

Remove front face by unplugging it gently
from the base.

DAYS

1-7

PROG

P1-P4

0000

h

DAYS

1-7

PROG

P1-P4

0000

h

Fix the base on the wall.

Connect the thermostat following the picture
below.

If your boiler is equipped with a thermostat input,
remove the bypass of 2 thermostat terminals and
connect them respectively to terminals 1 and 3 of
the thermostat, to the 2 boiler’s thermostat inputs
(any connection scheme will do).

Possible settings

Circulation pump anti-lock system
(starts the pump for 1 min every
24 hours).

Anti-locking

Anti-locking

function off

function on

Technical specifications

Adjustment range for comfort T°C:

+ 5°C to+ 30°C

Adjustment range for reduced T°C:

+ 5°C to + 30°C

Adjustment range for holiday T°C:

+ 5°C to + 30°C

Adjustment range for ambient T°C:

+ 0°C to + 40°C

Static differential:

< 0,3 degrees

Power:

2 standard LR6 alkalines batteries

Breaking power change over contact:

1 RT - 8 (3) A/230 V AC

Operating temperature:

0°C to + 50°C

Storage temperature:

-10°C to + 65°C

Hygrometry:

85 % max to + 20°C

Degree of protection:

I30

Insulation class:

II (EN 60730 standards)

Connection: by screwed barrier up to 2.5 mm

2

Made in France
Usable in all Europe and Switzerland

0

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9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

0

1

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Auto Manu

1

2

3

4

5

6

7

°c

+

-

OK

PROG
P1-P4

DAYS

1-7

MODE

Res

days

ቤቦ


1

2

3

Terminal N°1 - Output heating

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