Technical documentation
Technical documentation
STESP ed 02/02
12
EOLO SUPERIOR PLUS
- VALVE VK 4105 M-M with integrated flanges
(with transparent protection cap)
Maximum pressure adjustment
- Do a d.h.w.request (open a tap) and
setting the temperature selector at
maximum.
Turn nut ”3” clockwise to increase pressure
to the burner and anticlockwise to decrease
pressure
Minimum pressure adjustment
(operation to be performed after maximum
pressure adjustment)
- After interrupting the power supply to the
modulation coil (*), turn screw "4"
clockwise to increase pressure to the burner
and anticlockwise to decrease it.
1) Modulation coil
5)
Transparent
protection cap
2) Coil pin
6) Gas valve outlet press. point
3) Min. output adjust. screw
7) Valve inlet press. point
4) Max output adjust screw
8) Air press. point hose
connector
- VALVE SIT 845
Maximum pressure adjustment
- Do a d.h.w. request after setting the
temperature switch at maximum.
Turn nut “3” clockwise to increase the
burner pressure and anticlockwise to
decrease it.
Minimum pressure adjustment
(to be done after maximum pressure
adjustment)
- After interrupting power to the
modulation coil, turn screw “2”
clockwise to increase burner pressure
and anticlockwise to decrease it.
1) Modulation coil
2) Minimum output set screw
3) Maximum output set screw
4) Gas valve outlet pressure point
5) Gas valve inlet pressure point
6) Protection cap
- CHANGING TYPE OF GAS
Adaptation to a type of gas different to that for which the boilers are intended, can be done by using the
special kits
(natural gas or LPG).
The changeover consists in replacing the burner nozzles and in moving to the modulation board of the
“NATURAL GAS- LPG” (CM3) bridge.
The minimum and maximum pressures are then set on the gas valve in the way described above.
Adjustment of the minimum and maximum output during the heating phase and of burner ignition
pressure (
see table below
) can be done by means of the respective trimmers mounted on the modulation
board
(see modulation board operation).
Soft ignition values in mbar
(mm H
2
O)
Natural Gas
LPG
EOLO 24 Superior Plus
25
60
