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Technical documentation
- OPERATION
- MODULATING GAS VALVE
- BURNER
Max
and
minimum
adjustments can be made by means of
the gas valve respecting the values
shown on the tables relating to each
boiler for the type of corresponding gas.
Measurement is made using a pressure
gauge connected to the outlet of the gas
valve (6) and to the positive pressure
point located on the upper part of the
sealed
chamber
alongside),
Then proceed as follows depending on
the gas valve fitted to the boiler.
- VALVE VK 4105 M (with yellow protection cap)
Minimum pressure adjustment
- After interrupting the power supply
to the modulation coil (*), turn screw
"3" clockwise to increase pressure to
the burner and anticlockwise to
decrease it.
Maximum pressure adjustment
(operation to be performed after
minimum pressure adjustment)
- Do a d.h.w.request (open a tap) and
setting the temperature selector at
maximum.
Turn nut "4" clockwise to increase
pressure
to
the
anticlockwise to decrease pressure.
STESP ed 02/02
GAS CIRCUIT
GAS ADJUSTMENTS
gas
pressure
(see
illustration
1) Modulation coil
2) Coil pin
3) Min. output adjust. screw
burner
and
4) Max. output adjust. screw
(See EOLO Maior @)
(See EOLO Maior @)
(See EOLO Maior @)
11
Technical documentation
5) Yellow protection cap
6) Gas valve outlet press. point
7) Valve inlet press. point
8) Air press. point hose connector
EOLO SUPERIOR PLUS
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