Vaillant ecoCOMPACT VCC4 Series User Manual

Start-up 7
0020181421_04 ecoCOMPACT Installation and maintenance instructions 21
Result Meaning Measure
"Warning" Combustion
quality inad-
equate.
The CO₂ value is
incorrect.
Start check programme
P.01 and adjust the CO₂
value with the adjusting
screw in the Venturi.
If the correct CO₂ value
cannot be set: Check
that the gas restrictor
is correct (yellow: G20
natural gas, blue: G25
natural gas, grey: Liquid
gas) and undamaged.
Repeat the gas family
check.
F.93
Gas group
fault
Combustion
quality outside
the permitted
range
Damaged or incorrect
gas restrictor (yellow:
G20 natural gas, blue:
G25 natural gas, grey:
Liquid gas), incorrect gas
group, internal pressure
measuring point in Ven-
turi blocked (do not use
lubricants on the O-ring
in the Venturi), recircula-
tion, defective seal.
Eliminate faults in the
product.
Set the correct CO₂
value using check pro-
gramme P.01 (adjusting
screw in the Venturi).
Repeat the gas family
check.
Note
It is not possible to perform CO₂ measure-
ments during the gas family check.
Applicability: Germany
▶ Perform the gas family check as part of routine product
maintenance work, after replacing components, carrying
out work on the gas route and following gas conversion.
Result Meaning Measure
F.92
Coding
resistance
fault
The coding
resistor on the
PCB does not
match the gas
group that is
entered
Check the coding res-
istor, repeat the gas fam-
ily check and enter the
correct gas group.
"Successful" Combustion
quality is good.
Unit configur-
ation matches
the specified gas
group.
None
Result Meaning Measure
"Warning" Combustion
quality inad-
equate.
The CO₂ value is
incorrect.
Start check programme
P.01 and adjust the CO₂
value with the adjusting
screw in the Venturi.
If the correct CO₂ value
cannot be set: Check
that the gas restrictor
is correct (yellow: G20
natural gas, blue: G25
natural gas, grey: Liquid
gas) and undamaged.
Repeat the gas family
check.
F.93
Gas group
fault
Combustion
quality outside
the permitted
range
Damaged or incorrect
gas restrictor (yellow:
G20 natural gas, blue:
G25 natural gas, grey:
Liquid gas), incorrect gas
group, internal pressure
measuring point in Ven-
turi blocked (do not use
lubricants on the O-ring
in the Venturi), recircula-
tion, defective seal.
Eliminate faults in the
product.
Set the correct CO₂
value using check pro-
gramme P.01 (adjusting
screw in the Venturi).
Repeat the gas family
check.
Note
It is not possible to perform CO₂ measure-
ments during the gas family check.
Applicability: Austria
▶ Perform the gas family check as part of routine product
maintenance work, after replacing components, carrying
out work on the gas route and following gas conversion.
Result Meaning Measure
F.92
Coding
resistance
fault
The coding
resistor on the
PCB does not
match the gas
group that is
entered
Check the coding res-
istor, repeat the gas fam-
ily check and enter the
correct gas group.
"Successful" Combustion
quality is good.
Unit configur-
ation matches
the specified gas
group.
None

Vaillant ecoCOMPACT VCC4 Series Specifications

General

Brand	Vaillant
Model	ecoCOMPACT VCC4 Series
Category	Boiler
Language	English