p. 22
In large buildings with more than 14 zones where
multiple manifolds are utilized, it is possible to use
multiple masters to create a single network.
One master must be defined as the “network
controlling master” by setting both encoders to zero
(see pic).
Subsequent masters (up to nine) should be
connected as a “string”, where they will all use a
common pump.
If more than one pump is used, a separate string
should be created for each pump.
(se drawing below)
On the first string all left hand encoders must be set
to 1, and the right hand encoders should be set in
sequence from 1 to 9.
On the second string of masters all left hand
encoders should be set to 2, and the right hand
encoders again should be set in sequence from 1
to 9.
This numbering can be continued for up to 15
strings.
All masters are interconnected using special cable
via the RJ45 socket 1 or 2.
The last master of the first string must be connected
to the first master of the second string etc. etc.
An FS master can be used as the “network
controlling master” for central mixing control of
supply water and boiler switching.
Switching between cooling and heating can be done
for the whole network on the “network controlling
master” using the WLAC-1 interface module
connected to the thermostat bus.
Creating a Network
INSTRUCTIONS
