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Installation instructions
for contractors
VIESMANN
LON communication module
Safety instructions
Please follow these safety instructions closely to prevent accidents
and material losses.
Safety instructions explained
Please note
This symbol warns against the
!
risk of material losses and environmental pollution.
When using gas as fuel, also close the
main gas shut-off valve and safeguard
against unauthorised reopening.
Note
Details identified by the word "Note"
contain additional information.
Installation, initial start-up, inspection,
maintenance and repairs must only be
carried out by a competent person
(heating engineer/installation contractor).
Before working on the equipment/heating system, isolate the power supply
(e.g. by removing a separate mains
fuse or by means of a mains isolator)
and safeguard against unauthorised
reconnection.
Repairing components which fulfil a
safety function can compromise the
safe operation of your heating system.
For replacements, use only original
spare parts supplied or approved by
Viessmann.
5780 510 GB 8/2017
Dispose after installation.
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Application
LON communication module, part number
7172173 7172174 7179113
■ Boiler with the following
boiler and heating circuit
control units:
– Vitotronic 100,
type CC1E, CC1I, GC1,
GC1B, GC4, GC4B,
GC7B
– Vitotronic 200,
type CO1E, CO1I, FO1,
GW1, GW1B, GW7B
– Vitotronic 200,
type KO1B, KO2B
– Vitotronic 300,
type FW1, GW2, GW2B,
GW4, GW4B
■ Heating circuit control
units:
– Vitotronic 050
– Vitotronic 200-H
■ Heat pumps (as individual
appliances or lag appliances in a heat pump cascade) with the following
weather-compensated
control units:
– WPR 300
– Vitotronic 200,
type WO1A, WO1B,
WO1C
■ Cascade control unit in
multi boiler systems:
– Vitotronic 300-K,
type MW2, MW2B
– Vitotronic 333,
type MW2
■ Lead heat pump in heat
pump cascade:
Vitotronic 200,
type WO1B, WO1C
■ Boiler and heating circuit control unit with
cascade function
Vitotronic 300,
type CM1E, CM1I
■ Oil/gas condensing
boilers with the following weather-compensated control
units:
– Vitotronic 200,
type HO1, HO1A,
HO1B, HO1C
– Vitotronic 200,
type KW6, KW6A,
KW6B
– Vitotronic 200,
type HO1D, HO1E,
HO2B
5780 510 GB
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B
A
Installation
Please note
Electronic assemblies can be
!
damaged by electrostatic discharge.
Prior to commencing any work,
touch earthed objects such as
heating or water pipes to discharge static loads.
For opening the control units
and position A in the following
diagrams, see the corresponding installation and service
instructions.
Vitotronic 100, 200, 300, 300-K, 333, 050, 200-H
■ Vitotronic 100, type GC1, GC1B,
GC4, GC4B, GC7B
■ Vitotronic 200, type GW1, GW1B,
GW4B
■ Vitotronic 050 and 200-H, type
HK1W, HK3W
■ Vitotronic 300, type GW2, GW2B,
GW4, GW4B
■ Vitotronic 300-K, type MW2, MW2B
■ Vitotronic 333, type MW2
Main control unit PCB
A
Vitotronic 100, 200, 300, type C...
■ Vitotronic 100, type CC1E
■ Vitotronic 200, type CO1E
■ Vitotronic 300, type CM1E
5780 510 GB
LON communication module
B
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AB
B A
Installation
Main control unit PCB
A
(cont.)
■ Vitotronic 100, type CC1I
■ Vitotronic 200, type CO1I
■ Vitotronic 300, type CM1I
LON communication module
B
Main control unit PCB
A
4
LON communication module
B
5780 510 GB
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A
B
B
A
Installation
(cont.)
Vitotronic 200, type KO1B, KO2B
Type KO1B is shown
Main control unit PCB
A
B
Vitotronic 050 and 200-H, type HK1M
LON communication module
Main control unit PCB
A
5780 510 GB
LON communication module
B
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A
B
Installation
(cont.)
Heat pump control units
Vitotronic 200, type WO1...
Controller and sensor PCB
A
LON communication module
B
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A
X24
B
Installation
WPR300
Sensor PCB
A
(cont.)
LON communication module
B
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B
A
Installation
(cont.)
Vitotronic 200, type HO2B, HO1...
Main PCB
A
LON communication module
B
5780 510 GB
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Page 9
B
A
Installation
(cont.)
Vitotronic 200, type KW6...
Main PCB
A
LON communication module
B
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Page 10
A
B
Installation
(cont.)
Vitotronic 200, type FO1 and Vitotronic 300, type FW1
PCB heat distribution control
A
LON communication module
B
Making the LON connection
The Viessmann LON is designed for
"line" bus topology with a terminator at
both ends (accessories).
The transfer distances for LON are subject to the electrical properties of the
relevant cable. For this reason, only
use the specified cable types. Use only
one cable type within each LON.
Cable types (on site):
■ 2-core cable, CAT5, screened
■ JY(St)Y 2 x 2 x 0.8 mm (telephone
cable)
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Observe the requirements for cabling
and operation of the LON interface FTT
10-A.
All Viessmann appliances are connected with RJ45 connectors. The
Viessmann LON always requires cores
"1" and "2" plus the screen. The cores
are interchangeable.
Note
When connecting external switching
contacts and on-site components,
observe the insulation requirements of
IEC/EN 60335-1.
5780 510 GB
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C
A A A
B B
C
C
D
A A A
D
BB B
DD
BB B
C
900 m
C
A A A
B B
C
D DDD
F
Making the LON connection
(cont.)
Connection versions
Connection with LON cable
Installation spacing ≤ 7 m
Control unit or communication
A
product
Connection with LON cable and LON coupling
Installation spacing 7 to 21 m
Control unit or communication
A
product
LON cable, 7 m long
B
Max. 3 cables between 2 devices
B
C
C
D
LON cable, 7 m long
Terminator
Terminator
LON coupling
Connection with on-site cable and LON plug
Installation spacing ≤ 900 m (with LON plug)
Control unit or communication
A
product
On-site cable
B
Terminator
C
5780 510 GB
LON plug
D
Up to 30 subscribers
F
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A
D
C
B
C
B B B
E
D D D
E
F
900 m
A A
Making the LON connection
Connection with LON cable, on-site cable and LON socket
Installation spacing ≤ 900 m (with LON sockets)
Control unit or communication
A
product
LON cable, 7 m long
B
Terminator
C
(cont.)
LON sockets
D
On-site cable
E
Up to 30 subscribers
F
Commissioning and adjustment
Service and installation instructions and service instructions for
the relevant appliance
Viessmann Werke GmbH & Co. KG
D-35107 Allendorf
Telephone: +49 6452 70-0
Fax: +49 6452 70-2780
www.viessmann.com
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Viessmann Limited
Hortonwood 30, Telford
Shropshire, TF1 7YP, GB
Telephone: +44 1952 675000
Fax: +44 1952 675040
E-mail: info-uk@viessmann.com
5780 510 GB Subject to technical modifications.
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