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HR 12 M
ANUAL
REGISTER ADDRESS
DESCRIPTION
426
Mode: ventilation/night cooling
*ro = read only (read only)
*rw = read & write (read and write)
426
Mode: ventilation/night cooling
VALUE
DESCRIPTION
0
recirculation
2
ventilation
(only functional in manual control)
10
ventilation with night cooling
Manual version 1.0 (15-07-2018)
4.1.5 Ventilation/Night cooling
/
*
RO
RW
UNIT
MINIMUM
rw
-
0
The unit is designed to use heat recovery on ventilation air.
Depending on the type and the settings, the unit can also sup-
ply ventilation air without heat recovery from extracted air
(night cooling).
Note:
n
Register address 301 must have the value 1 (default)
(100% recirculation/ventilation).
UNIT FUNCTION ON
(
)
DAYTIME
not applicable
ventilation
(heat recovery from the
extracted air)
ventilation
(heat recovery from the
extracted air)
4.1.6 Alarm functions
In emergencies, the unit can emit an alarm signal or even
actively deal with the problem by functioning in a special
mode.
This special operation replaces the normal operation of the
unit (during the day and at night time) until the signal is no
longer active (435 is 0 again).
O
M
PERATION VIA
ODBUS
MAXIMUM DEFAULT
10
0
UNIT FUNCTION OFF
(
)
NIGHT TIME
off
ventilation (fan speed 2)
(cooling with fresh air via by-
pass, no heat recovery)
en-45
en
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