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6 For non-regulating mode (LP gas) turn adjust-
ment screw clockwise until it stops.
7 Replace pressure regulator cap.
8 Connect pressure feedback connection (if
applicable).
Checkout of adjustment
9 After any adjustment, set appliance in operation
and observe several complete cycles to ensure
that all burner components function correctly.
7.2 Adjust high-lo regulation
CAUtIon
Incorrect adjustment
Please observe the following:
– Allow time for pressure to stabilize before
making adjustments.
– It is recommended that the high–low regulator is
operated a few time to ensure correct setting.
– It should be prevented, that high–low regulator
is exposed to unnecessary forces because of
wiring.
➔ Good and reliable performance of high–low
regulator is not only dependent on the high–low
regulator itself, but also upon the reliability of the
controller.
3
1
Cap
2
Adjustment screw for max.pressure setting
3
Adjustment screw for min.pressure setting
4
M5 pressure feedback connection
➔ Good and reliable performance of high–low
regulator is not only dependent on the high–low
regulator itself, but also upon the reliability of the
controller.
1 Before any adjustment can be made, cap has to
be removed by putting a small screw driver in
one of the slots and lifting the cap carefully while
at the same time supporting it opposite to the
screw driver.
2
1
2
4
EN-6
WARnInG
Incorrect adjustment
Please observe the following to ensure that the
unit is not damaged during adjustment and
operation:
– Maximum pressure setting must first be
adjusted then minimum pressure setting can be
adjusted.
– Any adjustment of maximum pressure setting
influences minimum pressure setting.
– The outlet pressure setting should never be
above the range specified.
Regulator output pressure range:
Pressure
range
(mbar)
4–37
4 - P
More settings, see page 10 (11.4.1 Performance
hi-lo regulator).
Adjustment of maximum pressure setting
➔ An 8 mm wrench is needed.
3 Disconnect pressure feedback connection (if
applicable)
4 Connect a suitable pressure gauge to the pipe
line or to the outlet pressure tap of the combina-
tion gas control concerned to measure burner
pressure (measuring point must be as near to
burner as possible).
5 Energize high–low regulator, set combination gas
control in operation and wait until an outlet
pressure is recorded on the pressure gauge.
6 Use a 8 mm wrench to turn adjustment screw for
maximum pressure setting clockwise to increase
or counter-clockwise to decrease pressure, until
desired maximum burner pressure is obtained.
7
8 Check maximum pressure setting after several
times.
➔ For further adjustment the cap needs to stay off.
9 Now proceed with adjusting/checking the
minimum pressure setting.
Adjustment of minimum pressure setting
➔ A 3,5 mm screw driver is needed.
10 Disconnect pressure feedback connection (if
applicable).
11 Connect a suitable pressure gauge to the pipe
line or to the outlet pressure tap of the combina-
tion gas control concerned to measure burner
pressure (measuring point must be as near to
burner as possible).
12 Disconnect electrical connection of high-low
regulator coil.
setting
low
(P
< P
)
12–37
max
max
high
high
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