Chim Ney Sweep Function; Com Bustion Adjustm Ent Function ( Co2% ) - ECR International COMBI 115 Installation, Operation And Maintenance Manual

Com bust ion
Table
Nom inal value
Maxim um
Power
Perm it t ed
( 100% )
Nom inal value
I gnit ion
power ( * ) Perm it t ed
Nom inal value
Minim um
Perm it t ed
power ( 0% )
( * )
Aut om at ically calculat ed from t he PCB
9 .1 2 Chim ney Sw eep Funct ion
For correct boiler operat ion, cont ent of ( CO
combustion flue must be within tolerances indicated in table
above.
Chimney Sweep Function enables boiler firing rate to be
cont rolled for diagnost ic purposes.
A. Press and hold and
seconds. When t he funct ion is enabled, displays shows
" On" for few seconds followed by program row " 3 0 3 "
alt ernat ing wit h % of boiler power.
B. Press or t o gradually adj ust power ( increm ent s
of 1% ) up or down.
C. To exit : press and hold t he power/ reset but t ons
and at t he sam e t im e for at least 6 seconds.
D. I f t he value of CO - O
2
and t heir relat ive dist ances. Clean or replace sensor and
posit ion correct ly. See Sect ion 11 "General Maint enance",
Figure 11- 1 Elect rodes.
I f problem persist s, use Sect ion 9.12 "Com bust ion
Adj ust m ent Funct ion ( Co
I f problem cont inues t o persist , follow direct ions in
Sect ion 9 .8 Aut om a t ic Ca libra t ion Funct ion, a nd
a lso Sect ion 9 .9 M a nua l Ca libra t ion Funct ion.
NOTICE
to display instantaneous flow temperature for
• Press
15 seconds.
• Use a regularly calibrat ed com bust ion analyzer for
com bust ion analysis.
• During norm al operat ion boiler perform s com bust ion
cont rol cycles. I n t his phase CO values higher t han 400
ppm can occur for brief periods of t im e.
9 - START U P PROCED U RE
7 5 & 1 0 0
1 1 5 & 1 5 0
CO2 %
O2 %
9.0 4.9
8.5 – 9.5 4.0 – 5.7
value
8.7 5.4
8.2 – 9.3 4.3 – 6.3
value
8.8 5.2
8.2 – 9.3 4.6 – 6.3
value
- O ) in t he
2 2
at t he sam e t im e for 6
is different, check the flame sensor
2
% ) ".
2
Gas A ( Natural Gas)
1 2 5
CO2 % O2 % CO2 %
8.7 5.4 9.0
8.2 – 9.3 4.3 – 6.3 8.5 – 9.5
8.7 5.4 8.7
8.2 – 9.3 4.3 – 6.3 8.2 – 9.3
8.8 5.2 9.0
8.2 – 9.3 4.3 – 6.3 8.5 – 9.5
9 .1 3 Com bust ion Adj ust m ent Funct ion ( CO
This funct ion set s out t o part ially adj ust t he value of CO
Use t he following procedure:
1.
Press but t ons
When t he funct ion is enabled, displays shows " On" for a
few seconds followed by program row " 3 0 4 " alt ernat ed
wit h t he % of boiler power;
After burner is lit, boiler shows a flame icon
2.
alt ernat ely "3 0 4 " and current firing power. Press CH +
unt il " 3 0 4 " & " 1 0 0 " is displayed. I t is now possible t o
part ially adj ust CO2 value at 100% .
3.
I f adj ust m ent is needed Press
blinking flame icon
4.
Press
- 0.3% t o + 0.3% ) ;
5.
Press t o save new value. Power value "1 0 0 " will show
on display again. Boiler cont inues operat ing at m axim um
DHW power.
6.
Aft er saving t he new value ( st ep 5 above) , press
t o set boiler t o ignit ion power. Wait for value of CO
t o st abilize. Adj ust as described in st ep 4 of procedure
( power value is a num ber < > 100 and < > 0) . Repeat st ep
5 t o save.
7.
Press t o adj ust boiler t o m inim um pow er. Wait for
value of CO
2
value = 00) .
8.
Exit funct ion by pressing
6 seconds, see st ep 1.
5 5
Gas E ( LPG)
1 6 5 & 2 0 5
O2 % CO2 %
4.9 10.0
4.0 – 5.7 9.5 – 10.5
5.4 10.8
4.3 – 6.3 10.3 – 11.3
4.9 9.8
4.0 – 5.7 9.3 – 10.3
and t oget her for at least 6 seconds.
, display shows a
and alt ernat ely " 3 0 4 " and " 0 0 " .
t o raise or lower t he am ount of CO
t o st abilize. Go t o st ep 4 t o adj ust ( power
and
240013687 REV A [ 09/ 01/ 2022]
All
O2 %
5.7
4.9 – 6.4
4.8
3.7 – 5.2
6.0
5.2 – 6.7
% )
2
% .
2
and
( from
2
2
t oget her for at least