Boiler flue gas test
10
Logamatic 4321/4322 - Technical specifications are subject to change without prior notice.
70
10 Boiler flue gas test
"Flue gas test" button
Q
on the ZM434 module
The control must be switched on.
z
Hold down "Flue gas test" for several seconds to start the flue gas test.
The flue gas test lasts 30 minutes and is indicated on the display. During the flue
gas test, the displays
0
for faults and
1
for summer mode will flash
alternately. At the end of the test the control automatically switches to the prior
mode.
z
Press "Flue gas test"
Q
again to terminate the flue gas test.
During the flue gas test the MEC2 will show the display on the left.
WARNING!
RISK OF SCALDING
During the flue gas test, the hot water can reach a temperature in excess of
140 °F (60 ° C). Persons may be scalded at the taps.
z
Use only mixed hot water during or after an emissions test. Note that when
single-lever faucets are in their usual position, the water drawn may be too
hot.
z
Never turn on hot water only at faucets with two handles.
USER NOTE
z
Note the national regulations for limiting the emissions of the heating
system.
z
Have an emission test done annually.
The flue gas test may activated at the boiler (
Æ
technical boiler
documentation).
Fig. 25
ZM434
1
ZM434 module
testing flue gas
boiler temp
167°F
