Biddle DF Manual page 21

DF M
ANUAL
Manual version 2.0 (26-10-2012)
Master settings
Only if multiple units have been connected to a single
control panel
all units config-
ured as normal
units
external control only connected
input unit responds
automatic tem- each unit is
perature control independently
controlled
2.7.6 Multiple units operated from one control panel
• A maximum of eight units may be connected to a single
control panel.
• Units are daisy chained using Biddle control cables and
Connectors and .
• The total length of the control cables between connected
units may not be any longer than 30 m.
• Configure any one unit as a master. The sequence of the
connected units is not important.
• Connect the control panel and external control compo-
nents to the master unit.
Note:
n
Do NOT remove the external control input bridges
on the other units.
See also:
2.7.3 "External control input" on page 19
2.7.5 "Unit settings" on page 20
Units with two control PCBs
Only the following types: DF S-250-E, M-250-E,
L-250-E
These units have two control PCBs that each control a part of
the unit. The control PCB on the connection side has been
configured as master on delivery.
en
I
NSTALLATION
one unit config-
ured as a master
unit
all units follow
the master
all units are
controlled by
the master
en-21