
Manufactured for and on behalf of the Environmental and
Combustion Controls Division of Honeywell Technologies
Sàrl, Ecublens, Route du Bois 37, Switzerland by its
Authorized Representative:
Automation and Control Solutions
Honeywell House
Arlington Business Park
Bracknell, Berks, RG12 1EB
Phone (44) 1344 656000
Fax (44) 1344 656644
http://honeywell.com/uk
Printed in Germany
All rights reserved. Subject to change without
notice.
EN2B-0227GE51 R0308
30
Switching time programming
Entering the "Switching times" level: Press the
button.
(For detailed information see the SDC/DHC operating
instructions, GE2H-0220)
Every setting value that flashes in the display is corrected
with the input button and accepted by pressing the
button. Pressing the button jumps back to the
previous selection. Pressing the button or waiting
the set info time jumps back to the basic display.
1. Selection of the circuit, reloading of
default programs, copying
Setting range: Direct heating circuit (HC), mixed
heating circuit 1 (MC1), mixed heating
circuit 2 (MC2), hot-water circuit (DHW),
default programs, copying heating
circuits
Continue: öî
2. Selection of the switching time program
Prerequisite:
Parameter 02 in the "System Parameters" menu is P1–
P3.
Setting range: P1, P2, P3
Continue: öî
C
0 2 4 6 8 12 14 16 18 20 22 24
3. Selection of weekday and heating cycle, copying
(block building)
Setting
sequence:
Mon. 1st cycle – Mon. 2nd cycle,
Tue. 1st cycle – Tue. 2nd cycle ... Sun.
2nd cycle, copy to individual days (Mon.,
Sun.), weekday block (1–5), weekend
block (6–7), entire week (1–7).
NOTE: If the second cycle is occupied, a third cycle is
available.
Continue: öî
C
0 2 4 6 8 12 14 16 18 20 22 24
4. Start of heating (switch-on time)
Setting range: 0:00 to 24:00 hours
NOTE: The switch-on time is displayed in the top time
bar via a flashing segment.
Continue: öî
C
0 2 4 6 8 12 14 16 18 20 22 24
5. End of heating (switch-off time)
Setting range: 0:00 to 24:00 hours
NOTE: The switch-off time is displayed in the top time
bar via a flashing segment.
Continue: öî
C
0 2 4 6 8 12 14 16 18 20 22 24
6. Cycle temperature for the selected heating cycle
on selected weekday
Setting range: for heating circuits (HC, MC1, MC2):
5 to 30°C
for the hot-water circuit (DHW):
10 to 80°C (or the maximum hot-water
temperature)
CAUTION
If the desired daytime room temperature or hot-water
temperature is changed with the or
button, all associated cycle temperatures change by
the same value accordingly!
Continue: öî
C
0 2 4 6 8 12 14 16 18 20 22 24
7. Selection of weekday and heating cycle,
copying (block building)
If necessary, select the next heating cycle or weekday as
described in Step 3 and program it accordingly.
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Operation of digital wall device SDW 30
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Function
The digital wall device SDW 30 can be connected to a
central controller (central device).
With a digital wall device, remote control of a central
device (e.g. from a living room), in addition to room
temperature detection, is possible. Settings can be
carried out for all the existing heating circuits.
The bus address of the wall device is used to specify the
heating circuit on which the room sensor (room
influence) is to act.
The selection of the address for the heating circuit to
which the SDW 30 is to be assigned (bus address)
occurs the first time an SDW 30 is connected to the bus
system.
Should the address be changed later on, the press and
turn button must be pressed and held when the wall
device is set into the socket until the bus address
appears in the display.
After the input has been confirmed, feedback of the
heating circuit (HC, MC1, MC2) and the central device
(CU) to which the digital wall device has been assigned is
output.
Assignment is carried out on the basis of the following
table:
Address CU address Assignment
11 10 CU 1 – Direct heating circuit
12 10 CU 1 – Mixed heating
circuit 1
13 10 CU 1 – Mixed heating
circuit 2
21 20 CU 2 – Direct heating circuit
22 20 CU 2 – Mixed heating
circuit 1
23 20 CU 2 – Mixed heating
circuit 2
31 30 CU 3 – Direct heating circuit
32 30 CU 3 – Mixed heating circuit 1
33 30 CU 3 – Mixed heating circuit 2
41 40 CU 4 – Direct heating circuit
42 40 CU 4 – Mixed heating
circuit 1
43 40 CU 4 – Mixed heating
circuit 2
51 50 CU 5 – Direct heating circuit
52 50 CU 5 – Mixed heating
circuit 1
53 50 CU 5 – Mixed heating
circuit 2
Caution
Double assignments of bus addresses are not
permissible and inevitably lead to errors in data
transmission and thus to faulty control behaviour of
the heating system.
Pos:20 / 156-Honeywell/Kurzan leitungen/Montage @ 1\ mod_1208162032642_6. doc @ 11020
Installation
Installation location
The wall device is to be attached in a neutral
measurement location, i.e. that is representative of all
rooms, at a height of approx. 1.2 to 1.5 m. It is advisable
to select a partition wall of the coolest room used during
the day.
The wall device may not be attached:
• at locations in direct sunlight (take seasonal variations
into consideration)
• near devices that generate heat, such as televisions,
refrigerators, wall lamps, radiators etc.
• to walls containing heating or hot-water pipes or
heated chimneys
• to exterior walls
• in corners or wall recesses, shelves or behind curtains
(insufficient air circulation)
• near doors leading to unheated rooms (external cold
influence)
• in front of unsealed flush-mounted boxes
Installation
Remove the front cover and secure the wall device at the
intended installation site using screws and plugs. Feed
the data bus cable required for the electrical connection
through the central break-out.
Electrical connection
Make the electrical connection to the 2-pole terminal
strip. Recommended connection cable: J-Y (ST) Y
2 x 2 x 0.6 mm2.
Caution
Do not switch connection terminals A and B!
After connecting the data bus cable and setting the bus
address, reattach the front cover.
General wiring diagram
AB
SDC / DHC
a
AB
SDW 30
a
AB
SDW 30
a
bc d
Fig. 1: Connection of SDW 30 to central device
a Data bus b Data bus cable
(shielded)
c SDW 30 connected
to heating circuit 1
(direct heating circuit)
d Additional wall devices
connected to heating
circuit
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