Honeywell BCU 460, Technical Information, Page: 95 / 145

BCU 460, BCU 465 · Edition 11.19 95
Parameters
11 .8 .8 Air actuator can be activated externally on
start-up
Parameter A049
Parameter A049 = 0: cannot be activated.
t
SA
t
Z
A4 A2 A3 00 A0
t
t
FS
88
A
ϑ
V1
V2
1
1
35
L
51
22
60
61
96
82
65
4
∨ 66 M
During start-up, the air actuator remains closed. The air
actuator cannot be activated externally.
Parameter A049 = 1: can be activated externally.
t
SA
t
Z
A4 A2 A3 00 A000
t
t
FS
A0 88
A
ϑ
V1
V2
1
1
35
L
51
22
60
61
96
82
65
4
∨
66
M
The air actuator can be activated externally via the input
at terminal 4 during start-up. Parameter A048 must be
set to 0 for this purpose, see also page 93 (Air actua-
tor control).
11 .8 .9 Air actuator in the event of fault
Parameter A050
This parameter decides whether the air actuator can
be activated externally via the input at terminal 4 in the
event of a fault lock-out.
Parameter A050 = 0: cannot be activated. The air ac-
tuator remains closed in the event of a fault lock-out. It
cannot be activated externally via terminal 4.
Parameter A050 = 1: can be activated externally. The
air actuator can be activated externally via the input at
terminal 4 during a fault, e.g. for cooling.