Ferroli Domina Oasi F 24 E Technical Manual page 28

DOMINA OASI F 24 - 30 E
FERELLA BOIL F 24 - 30 MEL
KEA AIR COMPACT E
Main electronic card
The electronic card is a Honeywell PMF03: part of the card works on low voltage
(24V) and the remainder on 230V (see diagram) and it is fitted with a fuse (2A).
Part of the card is used to control ignition, so it is hooked up to the detection
and ignition electrodes and the safety thermostat. There are loads and controls
common to the card that have already been described, such as:
• Pumps.
• Fan.
• Gas valve.
• Air pressure switch.
There remain some components described hereunder.
Ignition + detection electrode, see chap. 2.4 Burner Unit
Safety thermostat
X6 - 5/6 has a thermostat with gold contacts that opens if the temperature
exceeds 100°C. Connected directly to the ignition and main card, when it
opens it cuts off the power supply to the valve directly, shutting down the boiler.
It is located on the exchanger delivery pipe in a flat seat.
Limit thermostat
Connected on the main card X4 - 6/7, it is a thermostat with silver contacts that
opens if the temperature exceeds 88°C. It requires no manual resetting and
closes the contacts again if the temperature falls under 70°C. It is located on
a bend in the exchanger pipe in a flat seat.
28
Version - 09.2002