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2 FIRST IGNITION
2.1 PRELIMINARY OPERATIONS
Before carrying out ignition and working inspection on the
boiler it is essential to check that:
- fuel and water taps supplying the system are open.
- The type of gas and supply pressure correspond to those
designed to be used by the boiler, as shown on serial number
plate(Sect. 1.4 page 2).
- The vent of the air vent bottle is open (Sect. 1.5.3 page 3).
- Wiring has been done properly (Sect. 7.3 page 71).
- The flues for fuel exhaust and combustion air are adequate
(Sect. 7.5 page 73, Sect. 7.6 page 73 and Sect. 7.7 page 75).
- Pre-charge of the expansion tank must be at 1 bar. Remove
the protection cover from the control and pressure valve on
the upper part of the tank (Fig. 2.2); with a manometer check
the pre-charge pressure and if necessary top up with a
compressor.
The check must be carried out with the system empty.
- The circulator turns freely; unscrew the inspection screw and
check that the motor shaft moves freely using a broad-tipped
screwdriver (Fig. 2.3).
2.2.1 Operations for boiler ignition and use
Open the gas cock by rotating the knob under the boiler counter-
clockwise, to allow fuel flow.
Fig. 2.1
Fig. 2.3
!!
Fig. 2.5
Fig. 2.6
Fig. 2.2
!!
Fig. 2.4
Protect the electrical devices underneath the circulator
from eventual water leaking out before loosening and
removing the circulator plug.
- the pressure of the water circuit is between 1 bar and 1.5
bar (Sect. 7.4 page 72).
2.2 START UP
Place function selector on symbol « » WINTER or
« » SUMMER following the operation selected.
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