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Building Technologies
CC1N7106en
HVAC Products
20.02.2008
Operation, indication, diagnostics
(cont´d)
After lockout, the red fault signal lamp is steady on. In that condition, visual diagnostics of
the cause of fault according to the error code table can be activated by pressing the lock-
out reset button for at least 3 seconds. Pressing the reset button again for at least 3 sec-
onds activates interface diagnostics. If, by accident, interface diagnostics has been acti-
vated, in which case the slightly red light of the signal lamp flickers, it can be deactivated
by pressing again the lockout reset button for at least 3 seconds. The instant of switching
over is indicated by a yellow light pulse.
The following sequence activates the diagnostics of the cause of fault:
EK
> 3 s
Flashing
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
xxxx xxxx
Error code table
EK
> 3 s
Interface diagnostics
PC / analyzer
OC
I4
0
0
EK
< 3 s
7
1
06
z
0
4e
/0
7
0
6
Reset
On
Visual diagnostics
Lockout position
Lockout position
Lockout position
Error code table
Red blink code of
signal lamp (LED)
«AL» at
term. 10
Possible cause
2 blinks
On
No establishment of flame at the end of «TSA»
-
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner, no fuel
-
Faulty ignition equipment
3 x blinks
On
«LP» faulty
- Loss of
air pressure signal after
«t10»
- «LP» welded in normal position
4 blinks
On
Extraneous light when burner startup
5 blinks
On
Time out «LP»
- «LP» welded in working position
6 blinks
On
Free
7 blinks
On
Too many losses of flame during operation (limitation of repetitions)
-
Faulty or soiled fuel valves
-
Faulty or soiled flame detector
-
Poor adjustment of burner
8 x blinks
On
Free
9 blinks
On
Free
10 blinks
Off
Wiring error or internal error, output contacts, other fault
14 blinks
On
CPI contact not closed
During the time the cause of fault is diagnosed, the control outputs are dead.
-
Burner remains shut down
-
External fault indication remains deactivated
-
Fault status signal «AL» at terminal 10, according to the error code table
The diagnostics of the cause of fault is quit and the burner switched on again by resetting
the burner control. Press the lockout reset button for about 1 second (<3 seconds).
Diagnostics of the
cause of fault
