Making The Lon Connection - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Vitotronic 200, HO1B and 300-K, MW2C Installation/Service
External Heating Program Changeover
Preselected heating program (Contact open) Coding
Central heating
9
OFF/DHW OFF
Central heating
w
OFF/DHW ON
or
Central heating
w
OFF/DHW ON

Making the LON Connection

Legend
A Boiler, control unit or Vitocom
B LON cable, 23 ft. (7 m) long
C Terminal end resistor
Legend
A Boiler, control unit or Vitocom
B LON cable, 23 ft. (7 m) long
Max. 3 cables between 2 appliances
C Terminal end resistor
D LON extension jack
(continued)
d5:0  Permanent operation with reduced room
(factory set condition)
d5:1  Constant operation with standard room
The Viessmann LON system is designed for the
"Line" BUS topology with a terminator at both ends
(accessories).
Observe the cabling requirements for the operation of
the LON interface FTT 10-A (see www.echelon.com).
All Viessmann equipment is connected via RJ45
plugs. The Viessmann LON system always requires
the cores "1" and "2" and the screen. The cores are
interchangeable. The installation is therefore safe from
pole errors.
Connection with Viessmann LON cable
The line may be up to ≤ 23 ft. (7 m) long
Connection with Viessmann LON cable and coupling
Installation spacing 23 to 69 ft. (7 to 21 m)
Installation Sequence
Changed heating program (Contact closed)
temperature/ DHW OFF
temperature, DHW in accordance with
coding address "64"
25