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Building Technologies Division
Basic Documentation LME7...
CC1P7105en
Infrastructure & Cities Sector
27 PWM settings
29.11.2011
27.4.7 ... via the AZL2... operating unit
Start the programming mode for the heating engineer
Keep
A
and
F
depressed for <5 seconds. Display shows
Code
Enter the heating engineer’s password via
,
and
/reset
. Also see chapter
Entering the password
Display
shows
PArA
and then
400: SEt
. Confirm by pressing
/reset
Display
changes
to
run
. Confirm by pressing
/reset
to start the setting mode for low-
fire (
P1
), ignition load (
P0
) and high-fire (
P2
)
Heat request (temperature controller) ON
Basic unit is started and runs through the startup phase. Then, the unit runs
through the respective program phases in accordance with the program sequence
and the numbers appear blinking
The unit proceeds to the end of the prepurge phase (P30), goes to the start load
position and then displays
P0
(ignition load sped). In the process, the display
shows alternately
P0
(blinking) and the speed
By
pressing
A
(display changes to
0A
and the speed appears blinking) and
pressing
or
the speed can be changed in step sizes of 10 rpm within the
limits predefined by the OEM (
P0
max,
P0
min)
Note!
The setting value of P0 must be greater than the setting value of P1. The basic unit
checks the setting values. If setting rules are violated, the unit goes to lockout and
displays error message Loc: 225.
Press
/reset
to transfer the setting value to the onboard memory
The startup phase proceeds. The burner is ignited. The program proceeds to low-
fire position
P1
. In the process, the display shows alternately
P1
(blinking) and the
speed
By
pressing
A
(display changes to
1A
and the speed appears blinking) and
pressing
or
the speed can be changed in step sizes of 10 rpm within the
limits predefined by the OEM (P1max, P1min)
Press
/reset
to transfer the setting value to the onboard memory
Display changes briefly to
oP: P1
. The fan speed changes to the value for high-fire
P2
and the display changes to
P2
(blinking) to show the speed
By
pressing
A
(display changes to
2A
and the speed appears blinking) and
pressing
or
the speed can be changed in step sizes of 10 rpm within the
limits predefined by the OEM (P2max, P2min)
Press
/reset
to transfer the setting value to the onboard memory
Then, the display changes briefly to
oP: P1
. The fan speed changes to the value
for low-fire
P1
and the display changes to
P1
(blinking) to show the speed
From here, the low-fire speeds
P1
or high-fire speeds
P2
can be changed again as
described above, or the setting process can be ended and the burner be brought
into its operating position by pressing
ESC
several times (press
and
simultaneously)