Viessmann VITOCAL 300-G Installation And Service Instructions Manual page 124

Commissioning, inspection, maintenance
Further details regarding the individual steps
Integrating a heat pump control unit into a LON
The LON communication module
(accessory) must be plugged into the
heat pump control unit (see page 79).
Note
The data transfer via the LON system
can take several minutes.
LON system number and LON sub-
scriber number
Set the LON system number, LON sub-
scriber number and other functions at the
"Coding level 1" setting level (see from
page 215).
Example: Heat pump and Vitocom
Heat pump control unit
LON
LON communication module installed
Parameter setting: "LON module installed" set to
"1"
Subscriber no. 1
Parameter setting: "Subscriber number 7710" set to
"1"
Viessmann system number
Parameter setting: "System number 7798" set to
"1"
Control unit is fault manager
Parameter setting: "Fault manager 7779" set to "1"
Control unit transmits the time
Parameter setting: "Time 77FF" set to "2"
124
Setting other LON subscrib-
ers:
See service instructions of further
LON subscribers (e.g. Vitocom)
and the following table.
Note
In the same LON system, one number
can only be allocated once.
Only one control unit per system may
be programmed as the fault manager.
Vitocom
—
Subscriber no. 99
—
Device is fault manager
Device receives the time
(cont.)