SAVIO HEAT ONLY MANUAL
31
15. Commissioning Cont.
Adjustment of the gas pressure:
15.4
Remove the front panel of the case.
•
Open the gas valve inlet pressure test point
•
(16 in Fig. 15.5) at the valve input, connect
a suitable pressure gauge and check the gas
pressure of the supply network.
Remove the gauge and close the pressure
•
test point 16.
Open the gas valve outlet pressure test point
•
(15 in Fig. 15.5) and connect the gauge.
Figure 15.5
Remove the protection cap I (Fig. 15.6) from
•
the mechanical pressure adjustment compo-
nents levering with a at screwdriver in the
slots H.
Start the boiler at its maximum power.
•
Figure 15.6
Ensure that the boiler is not range rated.
•
Rotate the maximum gas pressure adjustment
•
(F in Fig. 15.5) until you obtain the required
pressure (by rotating clockwise the pressure
increases).
Turn the boiler off and disconnect one of the
•
two connectors (E in Fig. 15.5).
Start the boiler and rotate the minimum gas
•
pressure adjustment (G in Fig. 15.5) until
you obtain the required pressure (by rotating
clockwise the pressure increases).
Turn the boiler off and re-connect the wire to
•
the modulating operator.
Start the boiler and check again the maximum
•
gas pressure setting.
Turn the boiler off and disconnect the gauge.
•
Important: after the checks all of the test
points must be sealed.
Checking the ignition device:
15.5
With the burner on high ame close the gas cock. After three ignition attempts (within about three min-
utes), the lock-out signal lamp must appear (D on Figure 15.3). To reset the boiler turn the knob B ( gure
15.3) on the 0 position and then press and release the boiler reset button (C on Figure 15.3).
Summary of Contents for Heat Only
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