Viessmann VITOTROL 300A Guida rapida
Installation and service
instructions
for contractors
VIESMANN
Vitotrol 300A
Remote control, part no. 7438 364
VITOTROL 300A
5458 093 GB 3/2010 Please keep safe.
2
Please follow these safety instructions closely to prevent accidents and mate-
rial losses.
Safety instructions explained
Danger
This symbol warns against the
risk of injury.
!Please note
This symbol warns against the
risk of material losses and envi-
ronmental pollution.
Note
Details identified by the word "Note" con-
tain additional information.
Target group
These instructions are exclusively
designed for qualified personnel.
■ Work on gas equipment must only be
carried out by a qualified gas fitter.
■ Work on electrical equipment must
only be carried out by a qualified elec-
trician.
■ The system must be commissioned by
the system installer or a qualified per-
son authorised by the installer.
Regulations
Observe the following when working on
this system
■ all legal instructions regarding the pre-
vention of accidents,
■ all legal instructions regarding envi-
ronmental protection,
■ the Code of Practice of relevant trade
associations,
■ all current safety regulations as
defined by DIN, EN, DVGW, TRGI,
TRF, VDE and all locally applicable
standards,
■ Gas Safety (Installation & Use) Regu-
lations
– the appropriate Building Regulation
either the Building regulations, the
Building Regulation (Scotland),
Building Regulations (Northern Ire-
land),
– the Water Fittings Regulation or
Water Bylaws in Scotland,
– the current I.E.E. Wiring Regula-
tions.
If you smell gas
Danger
Escaping gas can lead to explo-
sions which may result in serious
injury.
■ Never smoke. Prevent naked
flames and sparks. Never
switch lights or electrical appli-
ances ON or OFF.
■ Close the gas shut-off valve.
■ Open windows and doors.
■ Remove all people from the
danger zone.
■ Notify your gas or electricity
supplier from outside the build-
ing.
■ Shut off the electricity supply to
the building from a safe place
(outside the building).
Safety instructions
Safety instructions
5458 093 GB
3
If you smell flue gas
Danger
Flue gas can lead to life-threat-
ening poisoning.
■ Shut down the heating system.
■ Ventilate the boiler room.
■ Close all doors leading to the
living space.
Working on the system
■ When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
■ Isolate the system from the power sup-
ply and check that it is no longer 'live',
e.g. by removing a separate fuse or by
means of a main isolator.
■ Safeguard the system against unau-
thorised reconnection.
!Please note
Electronic modules can be dam-
aged by electro-static dis-
charges.
Touch earthed objects, such as
heating or water pipes, to dis-
charge static loads.
Repair work
!Please note
Repairing components which ful-
fil a safety function can compro-
mise the safe operation of your
heating system.
Replace faulty components only
with original Viessmann spare
parts.
Ancillary components, spare and
wearing parts
!Please note
Spare and wearing parts which
have not been tested together
with the heating system can com-
promise its function. Installing
non-authorised components and
non-approved modifications/con-
version can compromise safety
and may invalidate our warranty.
For replacements, use only orig-
inal spare parts from Viessmann
or those which are approved by
Viessmann.
Safety instructions
Safety instructions (cont.)
5458 093 GB
4
Installation instructions
Installation sequence
Installation location............................................................................................... 5
Installing and connecting the Vitotrol 300A.......................................................... 6
Connecting several remote control units.............................................................. 7
Fitting the programming unit................................................................................. 9
Removing the programming unit (if required)....................................................... 10
Service instructions
Commissioning
Configuring the remote control............................................................................. 11
Specification....................................................................................................... 12
Parts list.............................................................................................................. 13
Index
Index
5458 093 GB
5
■Weather-compensated mode
Installation in any room.
■Operation with room temperature-
dependent control
– On an internal wall in the living
space, at a height of approx. 1.5 m
from the floor
– Not near windows and doors
– Not above radiators
– Not near heat sources (direct sun-
light, fireplace, TV set etc.)
Do not install further controllers in this
room. Open any thermostatic radiator
valves fully.
Note
If the remote control cannot be installed
in a suitable location, connect the room
temperature sensor, part no. 7438 537,
available as an accessory.
Installation sequence
Installation location
5458 093 GB
Installation
6
!Please note
Electronic modules can be dam-
aged by electrostatic dis-
charges.
Before beginning work, touch
earthed objects, such as heating
or water pipes, to discharge static
loads.
Connection
Two-core cable with a cross-section of at
least 0.75 mm; cores may be inter-
changed.
Cable length up to 50 m.
Note
Never route the cable to the remote con-
trol immediately next to 230/400 V
cables.
Installation sequence
Installing and connecting the Vitotrol 300A
5458 093 GB
7
D
13c
9
145
3 2 17 6 5 4
X3X4
A
B
C
4 3 2 1
AVitotrol 300A
B2 or 3-pole plug aVG (to the control
unit or the KM BUS distributor)
CWeather-compensated control unit
with terminals X3
DSeparate room temperature sensor
(accessory)
Connecting several remote control units
Up to 2 remote control units can be connected to a boiler control unit, incl. a
Vitotrol 200A and a Vitotrol 300A.
Vitotrol 200A installation instructions
Installation sequence
Installing and connecting the Vitotrol 300A (cont.)
5458 093 GB
Installation
8
Version 1
C
B B
A
15 m
15 m
4 3 2 1
4 3 2 1
ATo the control unit or to the KM BUS
distributor (see connection diagram
on page 7)
BVitotrol
CSocket (on site)
■ On-site connection via socket:
Connect in accordance with the dia-
gram
■ Limit the total length of all KM BUS
cables to 50 m.
Version 2
A
B
DC
B
15 m
15 m
4 3 2 1
4 3 2 1
ATo the control unit or to the KM BUS
distributor (see connection diagram
on page 7)
BVitotrol
CSocket (on site)
DFurther BUS subscribers
■ If several remote control units and
additional KM BUS users are connec-
ted, make the connections via an on-
site socket as shown in the diagram.
■ Limit the total length of all KM BUS
cables to 50 m.
Installation sequence
Connecting several remote control units (cont.)
5458 093 GB
9
!Please note
The remote control is supplied
with power by the control unit.
Do not insert batteries into the
battery compartment.
1.
3.
2.
Installation sequence
Fitting the programming unit
5458 093 GB
Installation
10
2.
1.
Installation sequence
Removing the programming unit (if required)
5458 093 GB
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