23
T-Product · BCU 465 · 2006 April
Factory Options and Field Programmable Options
Flame Proving Period, Param-
eter 23
The flame proving period (delay for
valve 2) is between 0 seconds and
25 seconds.
This time is the delay for high fire
mode. For BCU..O (POC-version),
this means delay for allowing external
air valve control (also see parameter
31); for BCU without POC input this
time is delay for gas valve 2 terminal
#14.
Manual Mode Limit, Parameter
34
If parameter 34 is set =1, the BCU
will return to standby 5 minutes
after the reset/info button was last
pressed. If parameter 34 is set =0,
the BCU will remain in its current
operational state for an unlimited
time.
Automatic Shutdown and Re-
start after 24 hr Operation, Pa-
rameter 35
If UVS 6 or UVS 8 UV detectors are
used, this function is recommended
to self check the UV detector every
day: parameter 35 = 1: restart, pa-
rameter 35 = 0 continue.
Note: Description of parameters 30,
31, 32 and 36 through 41 see Air
Reading the Parameters
0
Reading the flame signals, factory
options and field programmable op-
tions are explained as follows:
• Press the Reset/Information but-
ton for 2 seconds.
➔
The display changes to param-
eter 01
• Release the button.
➔
The display stops at this param-
eter and indicates the related
value.
• Press the button again for 2 sec-
onds.
➔
The display changes to the next
parameter.
• All parameters can be recalled
consecutively in this way.
• If the button is pressed only
briefly, the display indicates what
parameter is currently being dis-
played.
• The normal program status is
displayed again approx. one
minute after the button was last
pressed or if all parameters are
recalled or if BCU is switched off.
