Immergas EOLO Mini - Secondary circuit (D.h.w. Circuit)

Technical documentation Technical documentation
STEME ed 7/03
13
EOLO MINI
GAS ADJUSTMENTS
Max and minimum gas pressure 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.
After fitting a pressure gauge, connected to
the gas valve outlet and to the positive
pressure point on the top part of the sealed
chamber (see illustration alongside),
proceed as follows:
- VALVE VK 4105 M (with yellow protection cap)
Minimum pressure adjustment
- After interrupting power to the
modulation coil, turn screw “3” clockwise
to increase pressure to the burner and
anticlockwise to decrease the pressure.
Maximum pressure adjustment
(to be done after minimum pressure
adjustment)
- Sample the d.h.w after setting the
temperature switch on maximum.
Turn nut “4” clockwise to increase the
pressure and anticlockwise to decrease the
pressure.
1) Modulation coil 5) Yellow protection cap
2) Coil pin 6) Gas valve outlet press. point
3) Min. output setscrew 7) Vale inlet press. point
4) Max output setscrew 8) Air press. point
- VALVE SIT 845
Maximum pressure adjustment
- Sample the d.h.w. 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 setscrew
3) Maximum output setscrew
4) Gas valve outlet pressure point
5) Gas valve inlet pressure point
6) Protection cap