Object name
Command Parameter
range
Factory
seng
Data type Units
Comments
Vent opons 1 !S853 0 0 decimal Hard vent when < 50%
speed if stop or fail
?S853 1 Controlled vent if > 50%
speed then hard vent if
< 50% speed if stop or fail
2 If stop, hard vent
If fail, hard vent when
< 50% speed
3 If stop, hard vent
If fail, controlled vent >
50% speed then hard
vent < 50% speed
4 If fail, hard vent
If stop, hard vent when
< 50% speed
5 If fail, hard vent
If stop, controlled vent >
50% speed then hard
vent < 50% speed
6 Hard vent if stop or fail
7 Same as opon 6
8 Output is permanently
energised (Fan ON)
9 Do not use
10 Output is permanently
de-energised (Fan OFF)
11 Do not use
12 Do not use
13 Do not use
14 Hard vent when < 50%
speed if stop
15 Controlled vent if > 50%
speed then hard vent if <
50% speed if stop
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B8G000880_D - Installaon