Prior To Com M Issioning; Com M Issioning For The First Tim E; Autom Atic Calibration Function - ECR International COMBI 115 Installation, Operation And Maintenance Manual

!
W ARN I N G
Asphyxiat ion hazard! Fill condensat e t rap before
st art ing boiler t o avoid com bust ion product s escaping
boiler. Failure t o follow t hese inst ruct ions could result
in deat h or serious inj ury.
NOTICE
All connect ions shall be m ade and wat er added before
perform ing t his funct ion.
9 .6 Prior t o Com m issioning:
• Check syst em pressure is correct ;
• Power boiler;
• Open gas t ap ( posit ioned under boiler) ;
• Maximize water flow in central heat or Domestic hot
wat er m ode.

9 .7 Com m issioning For The First Tim e:

1.
Turn power t o boiler on. Code " 0 0 0 " appears on t he
display. Appliance is ready for "com m issioning" procedure.
2.
Press at t he sam e t im e. Hold for 6 seconds.
"On" appears on t he display for 2 seconds followed by
code "3 1 2 " indicat ing "de- a era t ion" funct ion is act ive.
This funct ion last s 10 m inut es.
3.
Burner will ignit e aft er deaerat ion funct ion is com plet e.
Display will show code "0 0 0 " alt ernat ing wit h % of
ignit ion power and t em perat ure value ( ° F / ° C) .
• During t his gas recognit ion funct ion phase which
last s about 7 m inut es, t ype of gas being used is
analyzed.
• During t his funct ion, ensure m axim um heat exchange
out t o t he syst em wit h all zones and circulat ors running.
Maint ain syst em t em perat ure below 176° F for durat ion
of t he process unt il N G or LPG are seen on t he display.
• I f boiler operat es on Gas A ( Nat ural Gas) and display
shows LPG ( Gas E) , press
and hold down for at least 4 seconds t o exit wit hout
changing fact ory set t ing. Boiler will st ay set t o Nat ural
Gas.
• I f boiler operat es on Gas A ( Nat ural Gas) , display shows
N G ( Nat ural Gas) for about 10 seconds. Boiler is now
ready for norm al operat ion.
• I f boiler operat es wit h Gas A ( Nat ural Gas) , and
t he display shows LPG ( Gas E) press
t oget her and hold down for at least 4 seconds t o exit
t he funct ion. Change param et er P0 2 = 0 1 as described
in sect ion 9.15 Param et er
Operat ion and Maint enance Manual. Perform Aut om at ic
Calibrat ion Funct ion. Manual Calibrat ion m ay be
necessary if combustion is not within specified range.
• I f boiler operat es on Gas E ( LPG) and display shows LPG,
for at least 6 seconds to confirm gas used.
press
• After fuel type is detected confirm P0 2 is set for the
desired fuel type by checking param eter see section 9.15.
During Gas Recognition Function, firing rate will increase
4.
for a short period of t im e while gas t ype is being
est ablished.
9 - START U P PROCED U RE
and t oget her
and
of boiler I nst allat ion,
Settings
5.
I f dearat ion or gas recognit ion funct ion is int errupt ed
by power blackout , st art funct ion again when power is
rest ored. Press
t im e for at least 6 seconds.
Boiler must not shutoff during calibration.
N o t e
Open all heating zones in heating or DHW
mode to ensure boiler does not shutoff.
9 .8 Aut om a t ic Ca libra t ion Funct ion
Before perform ing t his funct ion verify t here are no heat
dem ands in progress and t he door is on t he boiler.
During t his funct ion ensure t here is m axim um heat exchange
t o t he syst em in Heat ing or DHW m ode ( DHW request ) t o
avoid boiler shutting off due to overheating.
Press and t oget her and hold for about 6 seconds.
When display indicat es "On" press
pressing previous but t ons.
I m port a nt : I f display indicat es "3 0 3 " Aut om at ic
Calibrat ion funct ion has not been act ivat ed. Disconnect
boiler from m ain power supply for few seconds and
repeat procedure.
1.
When funct ion is enabled,
display.
2.
Aft er ignit ion sequence, which can also t ake place
aft er few at t em pt s, boiler perform s t hree operat ions.
Each operat ion last s about 1 m inut e:
• m axim um power
• ignit ion power
• m inim um power
3.
Before m oving t o t he next com bust ion point t he
appear on t he display as t he cont rol is set t ing values.
4.
During t his phase, power level reached by boiler and
delivery t em perat ure alt ernat e on t he display.
5.
When , and
aut om at ic calibrat ion funct ion has com plet ed.
6.
Before exist ing t he funct ion it is recom m ended t o do a
m anual calibrat ion, see sect ion 9.9.
I M PORTAN T: I f Calibrat ion funct ion does not
com plet e, verify unit did not shut down for over-
t em perat ure. Repeat Aut om at ic Calibrat ion. I f unable
t o com plet e aut om at ic funct ion call Tech Service for
support .
5 3
and t oget her and hold at sam e
wit hin 3 seconds aft er
NOTICE
will flash on the
and
flash together on the display,
NOTICE
240013687 REV A [ 09/ 01/ 2022]
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