Mounting; Electrical Connection; Operation - Bosch TW2 Manual De Instrucciones

TW2
3

Mounting

Before starting to work, the power supply
(230 V, 50 Hz) to the heating equipment
must be interrupted.
3.1 Choose a suitable installation site
(if room thermostat function is to
be used).
Important for the regulating quality of the remote
control is the selection of a suitable mounting lo-
cation.
Anforderungen
• The room in which it is mounted must be suit-
able for controlling the temperature of the
complete heating system.
• The radiators installed in the room should not
be equipped with thermostatic valves.
Note: It is more effective to install hand valves
that can be preset so that the output of
the radiator in the room where the TW 2
is mounted can be set as low as possi-
ble.
There must be sufficient space below the con-
trol unit to allow air to circulate unrestricted
through the ventilation slots (shaded area in Fig-
ure ).
2
Note: observe the recommended clearances
as shown in Figure
3.2 Fitting the Remote Control
– For mounting, pull the upper part of the re-
mote control (a) from the base (b).
– The base (b) of the TW 2 can be mounted ei-
ther with two screws (d) on a standard flush
connection box (c) of 55 mm dia. (Fig.
or
– with plugs (6 mm) and screws (3.5 mm dia.,
oval head), screwed directly onto the wall
(Fig. , drilling template enclosed).
5
8
.
2
),
4
4

Electrical Connection

The TW2 remote control unit is connected to
the outside-temperature controlled programmer
by means of two cores in the connecting lead
(24 V).
– Observe the applicable regulations.
– Use electrical cable conforming at least to
H05VV-... with a cross-sectional area of
2
1.5 mm .
– Connect the remote control unit to the cen-
tral heating appliance according to the wiring
diagram (see Figs.
Avoiding Interference
– Route the connecting leads separately from
wires carrying 230 V/400 V (minimum sepa-
ration 100 mm).
– If there are external sources of inductive inter-
ference (e.g. high power cables, overhead
tram cables, transformer substations, radio
and television sets, amateur radio equipment,
microwave appliances, etc.) the wires carry-
ing the control signals should be shielded.
4.1 Commissioning
– After connecting the electrical wiring, press
outer cover (a) onto base (b).
– Switch on the central heating appliance.
5

Operation

The TW2 is not an independent regulator but
rather a remote control with or without room
temperature sensing.
It shifts the heating curve of the outside-temper-
ature controlled programmer as required.
It is therefore important that the settings on the
regulator (e.g., heating curve) are correct.
Note: The mode switch on the outside-tem-
perature controlled programmer must
be set to position
must be set to Automatic.
to ).
6 10
. The text display