Air Flow Monitoring During Operation (Bcu 465; Post-Ventilation Time T; Down (Bcu 465 - Honeywell BCU 460 Technical Information

Parameters
4 . 7 .4 Delayed air flow monitoring (BCU 465)
Parameter 08
Supplementary setting for parameter 07
Is the gas to be released with or without pressure
switch signal?
Parameter 08 = 0: Gas is released only with pressure
switch signal.
Parameter 08 = 1: Gas is released even without pres-
sure switch signal. The scan is conducted after a delay
time.
BCU 460, BCU 465 · Edition 03.16l

4 . 7 .5 Post-ventilation time t

shut-down (BCU 465 . .L)
Parameter 38
Value range 0 – 3 s
A4
The air valve remains open for the programmed time
after the start-up signal (ϑ) has been deactivated. The
burner control unit closes the air valve after expiry of
the post-ventilation time t
after a controlled
NL
A0 00 88
1
5
4
ϑ
7
9
12
V1
14
V2
23
A
26
21
16-17
18-19
t
t
NL
.
NL
63