Truma DuoControl vertical User manual

EN Operating instructions To be kept in the vehicle Page 02
DuoControl
DuoControl vertikal DuoControl horizontal

2EN
DuoControl
Table of Contents
Symbols used .................................................................................... 3
Intended use ................................................................................... 3
Safety instructions ........................................................................ 4
Operating instructions
Reset button ................................................................................... 7
Start-up ............................................................................................ 8
Changeover ..................................................................................... 8
Removal status ............................................................................... 9
Changing the gas cylinder ........................................................... 9
Hose change ................................................................................. 10
Using only one gas cylinder ...................................................... 11
Checking for leaks in the high-pressure section ................... 11
Checking for leaks in the low-pressure section .................... 11
Maintenance ................................................................................. 13
Accessories ................................................................................... 14
Technical data .............................................................................. 15
Manufacturer’s Warranty
(European Union) ......................................................................... 16

3EN
Symbols used
Symbol indicates possible hazards.
Note containing information and tips.
Intended use
– The DuoControl is a safety gas pressure regulator with automatic
changeover for connecting to two gas cylinders for caravans and mo-
tor homes. The gas pressure regulator ensures a uniform output pres-
sure of 30 mbar with a permissible inlet pressure range of 0.7 – 16bar.
The DuoControl gas pressure regulator is a single-stage gas pressure
regulator. If the gas pressure regulator is not working properly, for
example due to dirt or other foreign material on the valve, the safety
valve opens and blows off to a pressure of 110mbar.
Using the DuoControl in closed rooms (e.g. at home), on boats or in
EXZone 0 (e.g. tankers) is prohibited.
The national regulations must be observed if there is a possibility of it being
used in mobile homes. Its use in mobile homes is prohibited in Germany.
An automatic PRV* safety device integrated in the DuoControl with
limited flow protects the connected consumers against impermissibly
high pressure. As soon as an impermissibly high pressure arises on
the output side, the PRV opens and blows out the overpressure into
the air. The PRV closes automatically after the pressure is reduced
* = Pressure Relief Valve

4EN
DuoControl must not be used for commercial purposes.
Safety instructions
– The unit may only be installed and repaired by an expert. Experts
are persons who, based on their specialist instruction and train-
ing, their knowledge and experience with Truma products and the
relevant standards, can carry out the necessary work properly and
identify potential hazards.
– Do not connect any electrical appliances or other potential ignition
sources if you can smell gas or if there is a leak in the gas sys-
tem. Close the cylinder valves, have the gas system repaired by
an expert immediately and do not open the cylinder valves in the
meantime.
– The use of upright gas cylinders from which gas is extracted in the
gas phase is mandatory when operating the DuoControl gas pres-
sure regulator. Gas cylinders from which gas is taken in the liquid
phase (e.g. for fork lifts) must not be used, since they would result
in damage to the gas system.
– A gas filter must be installed upstream of the gas pressure regula-
tor inlet to provide reliable protection against dirt / oiling. A set of
operating and installation instructions is supplied with the gas filter.
– High-pressure hoses are mandatory for connecting the gas cyl-
inders to the gas pressure regulator or gas filter. For this, Truma
provides the necessary high-pressure hoses with the most com-
monly used connection variants for European gas cylinders (see
www.truma.com).

5EN
– In normal conditions of use, in order to ensure correct operation of
the installation it is recommended that this device is changed with-
in 10 years of the date of manufacture. National regulations must
be observed. The operator is responsible for this.
– Gas cylinders that are not connected to the gas installation must
be closed at all times and provided with protection caps. Connect-
ed gas cylinders are considered to be operating materials and not
hazardous materials (ADR exemption in accordance with sections
1.1.3.1 and 1.1.3.2 e).
The gas system must not be used while driving.

6EN
Operating instructions
5
4
6
2
1
3
8
11
12
7
Figure 1a: DuoControl vertical
8
6
12
5
11
Figure 1b: DuoControl horizontal
9
10
Figure 1c

7EN
1 = Cylinder valve
2 = Gas cylinder
3 = High-pressure hose
4 = Gas filter
5 = DuoControl
6 = Reset button
7 = Steel / copper tube
8 = Screw cap (test connection)
9 = Screw aid a/f 23 / KF
10 = Torx T20 (on the screw aid)
11 = Control knob for operating cylinder/reserve cylinder
12 = Status display – operating cylinder / reserve cylinder (green / red)
Reset button
DuoControl has a reset button, the position of which indicates its
status: “ready for operation” position (Figure2a) or “not ready for op-
eration” position (Figure2b).
6
6
Figure 2a Figure 2b
To reset, press the reset button (6) firmly and turn it anticlockwise as
far as it can go. Ensure that the reset button (6) remains in the posi-
tion “ready for operation” (Figure2a).
The Torx T20(10) from the screw aid(9) or a torx screwdriver
can be used to assist the turning movement.

8EN
Start-up
– Open the gas remote switch if present.
– Connect the gas cylinders (2) and make sure all hose connections
are in good condition.
– Open the valves on both gas cylinders (1).
– The status display (12) changes to green.
– If the reset button(6) is not pressed (“not ready for operation” posi-
tion), press the button (6).
Changeover
If the pressure in the operating cylinder drops to below 0.4bar,
DuoControl automatically switches over to take gas from the second
gas cylinder. The status display is red.
In extreme cold or when a large amount of gas is consumed
from the cylinder over a long period of time, the gas pressure
may fall below 0.4 bar even though there is still some gas left in the
operating cylinder. This may result in gas being taken from both gas
cylinders simultaneously.
If necessary, use the control knob (11) to manually select which gas
cylinder will be operating and which will be held in reserve.
Always turn the control knob (11) as far to the left or right as it will go
(an intermediate position will cause gas to be removed from both gas

9EN
cylinders simultaneously). We recommend that you do not operate
the cylinder if the control knob is in the intermediate position.
Removal status
In the normal position (operating cylinder on the left, reserve cylinder
on the right), the following display will be seen:
– Status display (12) is green = gas taken from the left cylinder (oper-
ating cylinder).
– Status display (12) is red = gas is taken from the right cylinder
(reserve cylinder); check the connection and fill level of the left
cylinder.
Changing the gas cylinder
Use the included screw aid (9) to attach and remove the high-pres-
sure hoses (3). It will help you generate the necessary tightening
torque and will prevent damage to the union that may otherwise re-
sult from using an improper tool.
Residual gas: No smoking, no naked flames!
– Close the valve (1) of the empty gas cylinder (2).
– Remove the high-pressure hose (3) from the gas cylinder (2) and
remove the clip-on adapter, if present.
– Attach the high-pressure hose (3) to the full gas cylinder and fit the
clip-on adapter, if present. Change the filter pad of the gas filter.

10 EN
– Open the full gas cylinder’s valve (1).
After any intervention, check the hose connection to the cylin-
der valve for leaks (see “Checking for leaks in the high-pressure
section”).
Hose change
Use the included screw aid (9) to attach and remove the high-pres-
sure hoses (3). It will help you generate the necessary tightening
torque and will prevent damage to the union that may otherwise re-
sult from using an improper tool.
Residual gas: No smoking, no naked flames!
– Close the gas cylinder valve (1).
– Unscrew the high-pressure hose (3) from the gas cylinder (2 / or the
clip-on adapter) and from the gas filter / DuoControl inlet.
When changing the hose, ensure that the seal provided with
the hose (hose outlet – gas filter / gas pressure regulator inlet)
is correctly installed and is not damaged.
We recommend that you replace the flat gasket G 13 (part no.
50020-76300) every time the hose is changed.
– Screw the country-specific high-pressure hose (3) to the gas filter(4) /
DuoControl inlet and to the cylinder (2 / or the clip-on adapter).

11EN
– Open the gas cylinder valve(1).
– Check the hose connection on the cylinder valve and on the gas fil-
ter / DuoControl inlet for leaks after every intervention (see “Check-
ing for leaks in the high-pressure section”).
Using only one gas cylinder
You can also use the DuoControl with only one gas cylinder. Non-
return valves integrated into the inlet connection prevent gas from
escaping through the unused connection.
The free inlet must be sealed off using the provided blind cover (brass)
if only one cylinder is being used.
– Turn the control knob (11) towards the operating cylinder.
Checking for leaks in the high-pressure section
The unions of the high-pressure hoses at the gas cylinder valve and
on the gas filter / DuoControl must be checked for leaks using suita-
ble means such as a leak-finder spray in accordance with EN 14291.
The operator is responsible for this.
Checking for leaks in the low-pressure section
(maximum test pressure 150 mbar)
The test must be conducted by a technician

12 EN
The gas hose and gas cylinder must be connected.
– Turn off all consumers.
– Open stop valves and, if present, the gas remote switch.
– Use the Torx T20(10) from the screw aid(9) to turn the reset button
clockwise to the “not ready for operation” position.
– Remove the screw cap (8) from the test connection and connect
the test pump with test hose to the test connection.
8
8
Figure 3a Figure 3b
DuoControl vertical DuoControl horizontal
– Check for leaks (e.g in Germany in accordance with G 607).
– If there is a gas system leak, close the cylinder valves, have the
gas system repaired by an expert immediately and do not open the
valves in the meantime.
– Unscrew the pump from the test connection and screw the
screwcap (8) back onto the test connection.

13EN
– It is essential to reattach the screw cap (8) every time after it has
been removed.
– Reset the reset button.
To reset, press the reset button (6) firmly and turn it slightly anticlock-
wise. Ensure that the reset button (6) remains in the position “ready
for operation” (Figure2a).
The Torx T20(10) from the screw aid(9) can be used to assist
the turning movement.
Maintenance
The DuoControl gas pressure regulator is maintenance-free.
In Germany, the gas system must be retested every 2 years by a lique-
fied gas specialist (DVFG, TÜV, DEKRA). The test must be confirmed
on the respective test certificate (G 607).
In countries where testing is not mandatory, we recommend that the
gas system be tested every 2 years for your own safety.
The filter pad in the gas filter must be replaced every time the gas cyl-
inder is replaced (see gas filter operating instructions).

14 EN
Accessories
High-pressure hoses (part no. list – see www.truma.com)
With country-specific connections
Flat gasket G.13 (part no. 50020-76300)
for high-pressure connection, M20x1.5 (G.13)
Plug-fit EisEx 12 V (part no. 53101-01)
Additional kit DuoC (part no. 50020-61100)
required when gas cylinders are separated by more than 100 cm.
Remote indicator DuoC (part no. 50212-01)
Gas remote switch GS 8 (part no. 57014-01)
Gas remote switch GS 10 (part no. 57024-01)
both for shutting off the gas supply from inside the vehicle
Gas filter (part no. 50603-01)
suitable for all wall-mounted gas pressure regulators with inlet fitting
M20 x 1.5 (male thread – G.13). Install upstream of the gas pressure
regulator.
Gas filter kit, 2 pcs (part no. 50603-02)

15EN
Technical data
(determined in accordance with EN 16129:2013 or Truma test conditions)
Gas type
Liquefied gas (propane / butane)
Admission pressure
0.7 – 16bar
Output pressure
30 mbar
Regulator capacity
1.5 kg/h
Regulator inlet
Male thread M20 x 1.5 (G.13)
Regulator outlet
Olive screw connection 8 mm or 10 mm (H.9)
Recommended tightening torque
3 – 5Nm for union nut M20 x 1.5 (G.13)
14–19Nm for olive screw connection 8mm;
16–21Nm for olive screw connection 10mm;
Operating temperature
-20°C to +50°C
Product ID number: CE-0085CT0438
Subject to technical changes.

16 EN
Manufacturer’s Warranty
(European Union)
1. Scope of Manufacturer’s Warranty
As the Manufacturer of the appliance, Truma undertakes a warranty
towards the Consumer that covers any material and/or manufacturing
defects of the appliance.
This Warranty is applicable in EU member states as well as in Iceland,
Norway, Switzerland and Turkey. A Consumer is the natural person
who was the first one to purchase the appliance from the Manufac-
turer, OEM or dealer and who neither resold the appliance in a com-
mercial or self-employed professional capacity nor installed it for a
third party in such a capacity.
The Manufacturer’s Warranty covers any of the aforementioned
defects that occur within 24 months upon concluding the purchase
agreement between the seller and the Consumer. The Manufacturer
or an authorised service partner undertakes to remedy such defects
through subsequent fulfilment, i.e. at its discretion either by repairing
or replacing the defective item. Defective parts shall become the
property of the Manufacturer or the authorised service partner. If the
appliance is no longer manufactured at the time of defect notification
and if replacement delivery has been opted for, then the Manufacturer
may deliver a similar product.
If the Manufacturer remedies a defect under its Warranty commit-
ment, the term of the Warranty shall not start again with regard to the
repaired or replaced parts; rather, the original warranty period shall
continue to be applicable to the appliance. Only the Manufacturer
itself or an authorised service partner shall be entitled to conduct a

17EN
warranty job. Any costs that occur in the event of a warranty claim
shall be settled directly between the authorised service partner and
the Manufacturer. The Warranty does not cover additional costs aris-
ing from complicated removal or installation jobs on the appliance
(e.g. dismantling of furnishings or parts of the vehicle body), and nei-
ther does it cover travel expenses incurred by the authorised service
partner or the Manufacturer.
No further-reaching claims shall be permitted, especially dam-
age claims presented by the Consumer or third parties. This shall
not affect the provisions of the German Product Liability Act
(Produkthaftungsgesetz).
The voluntary manufacturer’s warranty does not affect the Consum-
er’s legally valid claims for defects against the seller in the relevant
country of purchase. In individual countries there may be warranties
that can be issued by the relevant dealer (official distributor, Truma
Partner). In such cases the warranty can be implemented directly
through the dealer from whom the Consumer bought the appliance.
The warranty regulations of the country in which the appliance was
purchased by the Consumer for the first time shall also be applicable.
2. Warranty exclusions
No warranty claim shall be applicable under the following
circumstances:
– Improper, unsuitable, faulty or negligent use and any use that is not
compliant with the intended purpose
– Improper installation, assembly or commissioning, contrary to op-
erating or installation instructions

18 EN
– Improper operation or operation contrary to operating or installa-
tion instructions, particularly any disregard for maintenance, care
or warning notes,
– Instances where installations, repairs or any other procedures have
been conducted by non-authorised parties
– Consumable materials and parts which are subject to natural wear
and tear
– Installation of replacement, supplementary or accessory parts
that are not original manufacturer’s parts or which have not been
approved by the manufacturer. This applies in particular if the ap-
pliance is subject to networked control, if the control units or the
software have not been approved by Truma or if the Truma control
unit (e.g. Truma CP plus or Truma iNet Box) has not been exclusive-
ly used for controlling Truma appliances or appliances approved by
Truma.
– As a consequence of damage arising from foreign substances (e.g.
oil, or plasticisers in the gas), chemical or electrochemical influenc-
es in the water, or cases when the appliance has come into contact
with unsuitable substances (e.g. chemical products, flammable
substances or unsuitable cleaning agents)
– Damage caused by abnormal environmental or unsuitable operat-
ing conditions
– Damage caused by force majeure or natural disasters or any other
influences not within Truma’s responsibility
– Damage resulting from improper transport
– End customer’s or third-party modifications of the appliance, in-
cluding any replacement, supplementary or accessory parts, or
installation of the same, especially concerning the exhaust gas
system or the cowl.

19EN
3. Making a warranty claim
The warranty must be claimed with an authorised service partner or
at the Truma Service Centre. All the relevant addresses and phone
numbers can be found at www.truma.com, in the “Service” section.
The Manufacturer‘s address is:
Truma Gerätetechnik GmbH & Co. KG
Truma Servicezentrum
Wernher-von-Braun-Straße 12
85640 Putzbrunn, Germany
To ensure a smooth procedure, we would be grateful if you could
have the following details ready before contacting us:
– Detailed description of the defect
– Serial number of the appliance
– Date of purchase
The authorised service partner or the Truma Service Centre will then
specify the further procedure. To avoid transport damage, the affect-
ed appliance must only be shipped by prior arrangement with the
authorised service partner or the Truma Service Centre.
If the warranty claim is recognised by the Manufacturer, then the
transport expenses shall be borne by the same. If no warranty claim is
applicable, the Consumer will be notified accordingly and any repair
and transport expenses shall then be the Consumer’s liability. We ask
you not to send in an appliance without prior arrangement.

EN Should problems occur, please contact the Truma Service Centre or one of our
authorised service partners (see www.truma.com). In order to avoid delays,
please have the unit model and serial number ready (see type plate).
Truma Gerätetechnik
GmbH & Co. KG
Wernher-von-Braun-Straße 12
85640 Putzbrunn
Deutschland
Service
Telefon [phone]
Telefax [phone]
[email protected]
www.truma.com
50020-00524 · 02 · 09/2019 · ©