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DF MANUAL INSTALLATION

Manual version 2.0 (26-10-2012) en-21

Master settings

Only if multiple units have been connected to a single

control panel

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

E and G.

• 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.

all units config-

ured as normal

units

one unit config-

ured as a master

unit

external control

input

only connected

unit responds

all units follow

the master

automatic tem-

perature control

each unit is

independently

controlled

all units are

controlled by

the master

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 41 42

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