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Important
➔ To ensure a satisfactory setting of the valve the
pressure drop over the valve should be at least
10% of the supply pressure or 2,5 mbar which
ever is the greatest.
6.1 Adjust flow rate
2nd valve = fast opening
1
2
3 Turn adjustment screw counter-clockwise to
increase or clockwise to decrease the flow rate.
4 Replace cap on top of the coil.
2nd valve = slow opening
1
2
3 Turn wrench counter-clockwise to increase or
clockwise to decrease the flow rate.
4 Replace cap on top of the coil.
6.2 Adjust step pressure
step pressure adjustment
1
2
3 Turn screw driver counter-clockwise to increase
or clockwise to decrease step pressure.
4 Replace cap on top of the coil.
6.3 Adjust opening speed
opening speed adjustment
1
2
3 Turn screw driver counter-clockwise to increase
the opening speed and therefore the time till full
opening will decrease.
4 Turn screw driver clockwise to decrease the
opening speed and therefore the time till full
opening will increase.
Opening speed regulation
Characterized opening
5 Replace cap on top of the coil.
7 ADJUst seRVo ReGULAtoR
WARnInG
Incorrect adjustment
Please observe the following to ensure that the
unit is not damaged during adjustment and
operation:
– If the appliance manufacturer supplies checkout
and/ or service and maintenance instructions
carefully follow them. If these instructions are
not provided, follow the procedure described
below.
➔ In some applications, adjustment screws are
sealed as well, to avoid drift of factory calibration
during transportation. These sealings can be
broken when needed for readjustments, but only
by trained and authorized technicians.
7.1 Adjust outlet pressure
2
1
Slotted cap
2
Adjustment screw
3
M5 pressure feedback connection
1 Disconnect pressure feedback connection (if
applicable).
2 Energize both electric operators in order to have
gas input to burner.
3 Check gas input to the appliance using a
clocking gas meter or alternatively a pressure
gauge connected to the outlet pressure tap.
4 Remove the slotted cap on the pressure
regulator using a slotted screwdriver. This will
expose the adjustment screw.
5 Slowly turn adjustment screw with the T40 screw
driver until the burner pressure required is
recorded on the pressure gauge. Turn adjust-
ment screw clockwise to increase or coun-
ter-clockwise to decrease gas pressure to the
burner.
EN-5
time
1
3
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