OPTIMAX HE PLUS C
24
EN
cod. 3540I885 - 08/2012 (Rev. 00)
Opening the casing
To open the boiler casing, you need to follow the sequence given below and the instructions of fig. 30.
1. Using a screwdriver, fully unscrew and remove the
2 screws “A”
2. Open by lowering the panel “B”
3. Lift and take off the casing “C”
B
Before carrying out any operation inside the
boiler, disconnect the electrical power supply
and close the gas cock upstream
fig. 30 - Opening the casing
Combustion check
Connect the flue gas analyzer to the flue gas sampling point as shown in the fig. 31 and check combustion as described
in table 4 and table 5.
1. Press the CH button for 5 seconds to place boiler into test mode
2. Wait for 10 minutes for the boiler to stabilize fully
3. Take the measurement and record
4. Take the boiler to minimum output by pressing the CH – button, allow the boiler to stabilize for a further 10 minutes.
5. Take the measurement and record.
fig. 31 - Flue gas sampling Point
1
= Air -
2
= Fumes
Tabella. 4 - Maximum rate
Tabella. 5 - Minimum rate
If the combustion reading is greater than the acceptable value AND the integrity of the complete flue system
and combustion circuit seals have been verified and the inlet gas pressure (and gas rate) have been verified,
proceed as in section Setting the Air/Gas Ratio valve
.
B
A
C
A
eco
com
fort
rese
t
1
2
3
4
0
BAR
eco
com
fort
reset
1
2
3
4
0
BAR
1
2
1
2
NATURAL GAS ACCEPTABLE
COMBUSTION RANGE
MAXIMUM RATE AFTER 10 MINUTES FROM COLD
Boiler Model
CO/CO
2
RATIO
CO
2
NG
CO
2
LPG
OPTIMAX HE
PLUS 31 C
0.004
8,7 ÷ 9,2
10 ÷ 10,5
OPTIMAX HE
PLUS 38 C
0.004
NATURAL GAS ACCEPTABLE
COMBUSTION RANGE
MINIMUM RATE AFTER 10 MINUTES FROM COLD
Boiler Model
CO/CO
2
RATIO
CO
2
NG
CO
2
LPG
OPTIMAX HE
PLUS 31 C
0.004
8,2 ÷ 8,7
9,5 ÷ 10,0
OPTIMAX HE
PLUS 38 C
0.004
