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4
Mounting
Before starting work, the voltage supply
(230 V, 50 Hz) to the boiler must be dis-
connected.
4.1
Mounting of the Outdoor Tempera-
ture Sensor AF (Figures
The outside temperature sensor AF is intend-
ed for mounting on the surface of an outer
wall.
The following aspects should be observed:
• Between the Northeast and Northwest
sides of the house
• A minimum of 2 m over ground level
• It should not be influenced by windows,
doors, chimneys, direct sunlight or similar
effects (Fig.
).
5
• In recesses or under balcony and roof over-
hangs are not suitable as mounting loca-
tions (Fig.
).
5
• If the major occupied rooms of the building
are all located in the same direction, the out-
door sensor can point in that direction.
Notes:
• If the outdoor sensor is mounted on an east
wall, the sensor must be shadowed in the
early morning hours (e. g., by a neighbour-
ing house of a balcony).
Reason: The morning sun disturbs the
heating up of the house after the end of the
reduced night program.
• If the major occupied rooms point in two ad-
jacent directions, mount the outdoor sensor
on the side of the house that has the worst
climatic conditions.
• For the mounting height, the (vertical) cen-
tre of the height heated by the boiler has
proven to the most suitable (H/2 in Fig.
To mount, remove the cover (AF
and attach the sensor housing (AF
screws to the outer wall (Fig.
Legend for Figure
5
Y/H = Occupied height to be controlled by the
sensor.
= Recommended mounting location
= Alternative mounting location
3
and
5
with AF
c
) with two
a
).
3
:
4.2
Mounting the Regulator (Figures
and
)
15
Pull out the cover (f) at the bottom and re-
move (Fig.
Unscrew the screw (g, Fig.
Remove the cover (h) forwards.
)
Pull the blank panel (
move (Fig.
Insert the TA 211 E from below into the
guide rails and slide up until it clicks
(Fig.
).
14
Insert the plug (k) attached to the regulator
into the intended connector (Fig.
4.3
Mounting the Accessories
Mount the time switch, and the mechanical
limiter in accordance with the associated in-
stallation instructions.
5
Electrical Connection
The electrical connection of the regulator has
already been described in Section 4.2.
The following conductor cross sections are to
be used:
• From TA 211 E to the outdoor sensor:
Length to 20 m
Length to 30 m
Length over 30 m
• From TA 211 E to the remote control
(not in UK):
Taking the applicable regulations into consid-
eration, the electrical cable used for the con-
nection of the outdoor sensor and the remote
control must be at least type H 05 VV-...
).
5
All 24 V lines (measurement current) must be
)
laid separately from lines carrying 230 V or
b
400 V so that no inductive effects take place
(Minimum distance 100 mm).
If external inductive influences such as those
caused by power cables, tram lines, trans-
former stations, radio and television equip-
ment, amateur radio stations, microwave
equipment or similar are to be expected,
shielded cable should used for the signal
lines.
TA 211 E
).
11
).
12
) downward and re-
i
).
13
2
0.75 mm
to 1.5 mm
2
1.0 mm
to 1.5 mm
11
).
15
2
2
2
1.5 mm
2
1.5 mm
11
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