DF M
ANUAL
I
NSTALLATION
Manual version 3.0 (21-11-2017)
en-21
en
2.6.3 External control input
A door switch and/or building management system can be
connected to the input.
• The connector is located on the control circuit board
(INHIBIT connector). This connector has been fed through
to Connector
1
on the outside of the unit.
• This connector is fitted with a bridge on delivery.
• The input is suitable for potential-free switches.
Working of the input
See also:
2.6.5 "Unit settings" on page 22
3
heating is turned OFF
once the set room tem-
perature has been
reached
heating is always on as
long as the unit is turned
on
4
display heating settings
using multiple LEDs
display heating settings
with only one LED (does
not affect operation)
N
O
. P
OSITION
OFF
(
FACTORY
SETTING
)
P
OSITION
ON
contact closed (or bridged)
unit operates normally
contact open
unit remains off
resistor across contact
(3.3 k
Ω
)
unit working, but heating
remains turned off (summer
mode)
