Operating Instructions; Control And Display Panels; Start-Up; Changeover - Truma DuoControl Mode D'emploi

Operating instructions

Control and display panels

c
Figure 1
a = Control knob for operating cylinder / reserve cylinder
b = Status display – operating cylinder / reserve cylinder
(green/red)
c = Green button – hose rupture protection
Truma offers a remote indicator as an accessory (part no.
50211-01) to permit reading of the operating cylinder's
status from inside the vehicle.
b
c
a

Start-up

– Open the gas remote switch if present.
– For example, turn control knob (a) to the left until it stops
(left connection is operating cylinder.
– Connect gas cylinders and make sure all hose connections
are in good condition.
– Open the valves on both gas cylinders.
– Firmly press the hose rupture protection (c – green button)
on the high-pressure hose for about 5 seconds.
– The display in the inspection glass (b) turns green.

Changeover

As soon as the pressure in the operating cylinder falls below
0.5 bar, the DuoControl automatically switches over and be-
gins taking gas from the second gas cylinder. The display in
the inspection glass turns red.
In extreme cold or when a large amount of gas is con-
sumed from the cylinder over a long period of time, the
gas pressure may fall below 0.5 bar even though there is still
some gas left in the cylinder. This may result in gas being tak-
en from both gas cylinders simultaneously.
If necessary, use the control knob (a) to manually select which
cylinder will be operating and which will be held in reserve.
Always turn the control knob (a) as far to the left or right as it
will go (an intermediate position will cause gas to be removed
from both gas cylinders simultaneously).
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