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Building Technologies
Basic Documentation LMV5...
CC1P7550en
20 Flue gas recirculation (FGR) function (LMV50/LMV51.3/LMV52)
22.05.2018
20.4 Reading the flue gas recirculation (FGR)
operating temperature
(only LMV52.4)
The temperature values of temperature-compensated flue gas recirculation (FGR)
stored while the curve settings are made can be read out via menu item
Params &
Display
,
Flue Gas Recirc.
,
OperationTempGas
or
OperationTempOil
.
O
p
e
r
a
t
i
o
n
T
e
m
p
G
a
s
P
o
i
n
t
:
1
L
o
a
d
:
1
0
.
0
%
F
G
R
-
T
e
m
p
:
1
2
3
°
C
Using this function, all possible temperature values (15) can be read out.
Invalid or non-existing curvepoints are identified by XXXX.
The valid value range of the flue gas recirculation (FGR) temperature is 30...508 °C and
has a resolution of 2 °C.
XXXX on the 2 lines
Load
und
FGR Temp
denotes that the respective curvepoint does
not exist.
See the example below:
O
p
e
r
a
t
i
o
n
T
e
m
p
G
a
s
P
o
i
n
t
:
1
5
L
o
a
d
:
#
#
#
#
%
F
G
R
-
T
e
m
p
:
#
#
#
#
°
C
