Riva Plus Manual
39
15.4 Adjustment of the gas pressure:
•
Remove
the
front
panel of the case.
•
Take off the lid of the
sealed chamber.
•
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.
E
15
16
F
G
Figure 15.5
•
Remove the protection
cap I (Fig. 15.6) from
the
mechanical
pressure
adjustment
components
levering
with a flat screwdriver
in the slots H.
•
Start the boiler at its
maximum power.
H
I
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.
•
Close the lid of the
sealed chamber.
Important:
after
the
checks all of the test
points must be sealed.
15.5 Checking the ignition device:
With the burner on high flame close the gas cock. After three ignition attempts (within about
three minutes), the lock-out signal lamp must appear (D on Figure 15.3). To reset the boiler
turn the knob B (figure 15.3) on the 0 position and then press and release the boiler reset
button (C on Figure 15.3).
15. Commissioning Cont.
Summary of Contents for Riva Plus
Page 2: ...Riva Plus Manual 2...
Page 14: ...Riva Plus Manual 14 5 1 Sequence of Operation...
Page 20: ...Riva Plus Manual 20 9 Venting Cont...
Page 50: ...Riva Plus Manual 50...
