6
Commissioning
a = On (summer mode)
b= Off
c = On and heating
(winter mode)
d = Equipment-on lamp
e = Indicator lamp A
f = Indicator lamp B
Summer mode:
Switch down (a), equipment-
on lamp (d) illuminates.
Indicator lamps A and B illu-
minate if the gas cylinders
are ready for operation.
Winter mode:
Switch up (c). The equip-
ment-on (d) illuminates and
the gas pressure regulators
are also heated in order to
provide a problem-free gas
supply in winter (power con-
sumption 640 mA). Indicator
lamps A and B illuminate
when the gas cylinders are
ready for operation.
Duomatic L Plus
A
B
a
b
c
f
e
d
Operating
instructions
The Duomatic L Plus gas
pressure regulator kit con-
sists of a central regulator
„A” and a changeover regula-
tor „B”. This arrangement
provides consistent gas pres-
sure (30 or 50 mbar), irre-
spective of which cylinder is
supplying the gas.
The indicator lamps on the
remote display in the interior
show whether the gas cylin-
ders are ready for operation.
The rotary knob (1) at
changeover regulator „B” can
be used to control which of
the gas cylinders is the used
or spare cylinder.
If the rotary knob (1) is in the
red area, priority will be given
to obtaining gas from the
cylinder with the central reg-
ulator „A”. The gas cylinder
with changeover regulator
„B” then serves as the spare
cylinder. However, if the ro-
tary knob (1) is in the green
area, priority will be given to
obtaining gas from the cylin-
der with changeover regula-
tor „B” and the gas cylinder
with central regulator „A”
then serves as the spare
cylinder.
Always turn rotary knob
as far as it will go.
The used cylinder will always
be emptied first. The gas
pressure regulator set then
automatically switches to the
previously defined spare
cylinder.
When the remote display is
switched on the relevant indi-
cator lamp („A“ or „B“) goes
off, signalling an empty gas
cylinder.
Important notes
1. Always stand gas cylinders
upright and safeguard from
falling over (particularly 33 kg
cylinders)!
2. The regulators are
equipped with a combination
connector and are suitable
for commercially available
3 kg, 5 kg, 11 kg and 33 kg
gas cylinders.
3. Do not kink gas hoses or
subject to excessive bending!
4. If the gas system is to be op-
erated with one cylinder only
(e.g. in summer), use the cen-
tral regulator „A”. The rotary
knob (1) on the changeover
regulator „B” must be turned
to the red area. Hook the un-
used changeover regulator „B”
onto the regulator holder (14)
to prevent it from being
damaged.
5. The pressure gauge (2)
does not indicate how much
gas is in the cylinder, but the
current pressure in the gas
cylinder (depending on ambi-
ent temperature). Truma can
supply the Sonatic or Sonatic
Duo ultrasound filling level
measuring device for measur-
ing the contents of the gas
cylinders. Information can be
obtained from your specialist
dealer.
6. Pressure control devices
and hoses must be replaced
with new ones no more than
10 years after their date of
manufacture. This is the re-
sponsibility of the operator.
