Truma VarioHeat eco AU User manual

Operating instructions Page 2
To be kept in the vehicle!
Truma VarioHeat® eco AU

2
Inhaltsverzeichnis
Trademark information .......................................................... 2
Symbols used ........................................................................ 2
Intended use .......................................................................... 2
Prohibited use ........................................................................ 2
Safety instructions ............................................................. 2
Function description .............................................................. 5
Operating instructions
Start-up .................................................................................. 5
Room temperature sensor ................................................ 5
Digital control panel Truma CPplus VarioHeat ........... 5
Intended use .......................................................................... 5
Safety instructions ............................................................. 6
Important information ....................................................... 6
Display and operating elements ...................................... 6
Rotary push button ................................................................ 6
Back button ........................................................................... 6
Initial start-up ...................................................................... 6
Start-up ................................................................................ 6
Functions ............................................................................. 7
Switching on and off ............................................................. 7
Changing the room temperature ........................................... 7
Selecting the fan speed ........................................................ 7
Adjusting the time switch ..................................................... 8
Switching the lighting on and off ......................................... 9
Setting the time ..................................................................... 9
Service menu ...................................................................... 9
Special displays ................................................................ 10
Power supply 230 V / 240 V available ............................. 10
Infrared (IR) remote control
(air conditioning system) ..................................................... 10
External control panel (CI-BUS) ........................................... 10
Energy type display ............................................................. 10
Warning ............................................................................. 10
Error .................................................................................... 10
Display specifications ...................................................... 11
Maintenance of the Display ................................................ 11
VarioHeat fuses ................................................................ 11
Disposal of the VarioHeat ............................................... 11
Maintance of the VarioHeat ................................................ 11
Heater specifications ....................................................... 11
Truma warranty policy ................................................... 12
Troubleshooting guide for Truma VarioHeat ............... 13
Troubleshooting guide (air conditioning system) ....... 13
Truma VarioHeat® eco AU
Symbols used
The appliance must only be installed and repaired
by an expert.
Symbol indicates a possible hazard.
Comment including information and tips.
Intended use
The VarioHeat liquefied gas heater is a warm-air heater for
installation in recreational vehicles (RVs) only.
RVs are recreational vehicles designed as temporary living
quarters for recreation, camping or travel use. Such vehicles
have their own power or are towed by another vehicle.
Prohibited use
Any use other than the intended use (see above) is prohibited.
Examples of prohibited use:
• Use in a marine environment.
• Use as part of a space heating system.
• Use in mobile homes.
• Use in food trucks or roadside food vending vehicles.
• Use in construction trailers
• Use as a pool heater
Safety instructions
– Do not operate this appliance before read-
ing the instruction booklet.
– Do not place articles on or against this
appliance.
– Do not spray aerosols in the vicinity of this
appliance while it is in operation.
– Do not modify this appliance.
– Do not use or store chemicals, flammable
materials or spray aerosols near the
appliance.
What to do if you smell gas.
– Extinguish all open flames
– Open doors and windows
– Close all quick-acting valves and gas cylinders
– Do not smoke
– Do not activate any electrical switches
– Have the complete gas system tested
professionally.
Safe operating environment
– Operate the appliance only with the cor-
responding control panels and accessories
from Truma.
Trademark information
Truma VarioHeat® eco AU referred to as VarioHeat below.

3
– Risk of poisoning from exhaust gases
The exhaust gases from the heater can
cause poisoning in enclosed spaces, such as
garages or repair shops. If the RV is parked
in an enclosed space:
– Block the fuel feed to the heater.
– Disable the time switch.
– Switch the heater off on the control panel.
– Make sure that appliances cannot be
switched on via the Truma App.
– If the cowl was placed near or below a win-
dow that opens, the appliance must have an
automatic switch-off device to prevent op-
eration when the window is open.
– Keep flammable materials away from the
area in front of warm air outlets. Never block
the warm air outlets.
– So that the appliance does not overheat, do
not obstruct the openings for circulated air
intake, the opening to the installation loca-
tion or the space around the appliance.
– The cowl for the exhaust duct and combus-
tion air intake must be free of contamination
at all times (slush, ice, leaves, etc.).
– Danger from hot surfaces and exhaust gas
Do not touch the area around the wall cowl
and do not lean any objects against the wall
cowl or the vehicle.
– Air from the discharge vent may be hot. Do
not place combustible materials directly in
front of the discharge vent. Keep curtains,
bedding and other flammable materials
away from the vent.
Obligations of the operator / vehicle owner
– The vehicle owner is responsible for correct
operation of the appliance.
– The installer or vehicle owner must attach
the yellow sticker with the warning that is
supplied at a place in the vehicle that is visible
for every user (e.g. on the wardrobe door).
More stickers can be obtained from Truma.
– The vehicle owner must arrange for the
gas system to be tested (in Germany every
2 years) by an LPG expert (in Germany DVFG,
TÜV, DEKRA). This must be confirmed on the
corresponding test certificate (G 607).
– Check hoses regularly and replace when
they are brittle.
– Pressure control devices and hoses must be re-
placed at the latest after 10 years from the date
of manufacture (8 years for commercial use).
Safe operation
– To operate gas pressure regulation systems,
gas appliances and gas systems, standing
gas cylinders from which gas is withdrawn
from the gas phase must be used. Gas cyl-
inders from which gas is withdrawn from the
liquid phase (e.g. for forklifts) are not permit-
ted, as they damage the gas system.
– The working pressure of the gas supply
(2.75 kPa) and of the appliance (see type
plate) must correspond.
– LPG systems must comply with the technical
and administrative regulations of the country
in which they are used (in Europe, for ex-
ample, EN 1949 for vehicles). National rules
and regulations (in Germany, for example
DVGW worksheet G 607 for vehicles) must
be observed.
– For vehicles, we recommend the Truma
MonoControl CS gas pressure regulation
system and for two-cylinder systems, the
Truma DuoComfort / DuoControl CS gas
pressure regulation systems.
– At temperatures of 0 °C and below, the gas
pressure regulation system and the change-
over valve should be operated with the EisEx
controller heater.
– Use only hoses that comply with the regula-
tions of the country in which the appliance
will be used.
– Ensure that the inside of the vehicle is suf-
ficiently ventilated. When you start up the
appliance, you may notice a slight smell or
fumes due to dust or dirt. Especially if it has
not been used for some time

4
– This appliance may be used by children from
8 years old and by persons with disabilities or
with a lack of experience if they are supervised
or have been instructed in the safe use of the
appliance and understand the resulting risks.
Children must not play with the appliance.
– The exhaust double duct must be checked
regularly for damage and to ensure that it is
not loose, especially after long journeys; this
also applies to the mounting of the appliance
and the cowl.
Operation while the vehicle is in motion
– For heating while the vehicle is in motion,
a safety shut-off device is specified in the
guideline UN ECE R 122 for Motorcaravans
and Caravans. The Truma MonoControl CS
gas pressure regulation system fulfils this
requirement. If this gas pressure regulation
system is installed with the corresponding
dimensioned gas installation, operation of
a type-tested liquid gas heater while the
vehicle is in motion is permitted throughout
Europe according to UN ECE R 122. National
rules and regulations must be observed.
– If no safety shut-off device is installed (e.g. as
contained in the Truma MonoControl CS gas
pressure regulation system), the gas cylinder
must remain closed while the vehicle is mov-
ing and signs must be attached in the cylin-
der compartment and near the control panel.
– LP gas appliances must not be used while
the vehicle is being refuelled, in covered car
parks, garages or on ferries.
What to do in case of malfunctions
– If you notice unusual noises or smells, close
the gas supply and switch off the appliance.
– Risk of fire / explosion if you attempt to use
an appliance that has been damaged by
flooding or if the vehicle has been involved in
an accident. Damaged appliances must be
professionally repaired or replaced.
– Have malfunctions rectified by an expert
without delay.
– Repair malfunctions yourself only if the re-
pair is described in the troubleshooting guide
of these operating instructions.
– After deflagration (misfiring), have the ap-
pliance and the exhaust duct checked
professionally.
Maintenance / repair / cleaning
– The appliance may only be repaired, main-
tained and cleaned by a qualified service
technician.
– A new O-ring must always be installed after
dismantling the exhaust duct!
– Children must not carry out maintenance, re-
pair or cleaning work.
– The following will especially void warranty,
guarantee and liability claims:
– Modifications to the appliance (including
accessories),
– Modifications to the exhaust duct or cowl,
– Use of spare parts and accessories other
than Truma original parts,
– Non-compliance with installation and
operating instructions.
The operating permit for the appliance is also
void and, as a result, also the vehicle opera-
tion permit in some countries.
– To prevent damage from spray water, such
as when cleaning the vehicle, do not spray
water directly into the cowl.

5
Function description
VarioHeat is a warm-air heater for circulated air operation
to heat camping vehicles quickly. The burner is fan-assisted,
which ensures that operation is problem-free, even when on
the move.
The appliance automatically chooses the required operat-
ing level based on the temperature difference between the
temperature set on the control panel and the current room
temperature. It also has a boost function for rapid heating and
a night function for quieter operation. The different ventilation
levels allow circulation mode without heating.
The digital control panel allows other functions to be selected,
such as a time switch or operation of a Truma air conditioning
system. Information can be found in Truma CPplus VarioHeat
digital control panel
The appliance always starts at the lowest setting. If this is not
sufficient to reach the desired temperature in the vehicle, after
about 5 minutes the appliance switches to a higher operating
level.
Operating instructions
Before starting the appliance for the first time, it is
important that you read the operating instructions and
“Important operating notes”. The vehicle owner is re-
sponsible for ensuring that the appliance can be operated as
intended.
The installer or vehicle owner must attach the yellow sticker
with the warning that is supplied with the device at a place in
the vehicle that is visible for every user (e.g. on the wardrobe
door). More stickers can be obtained from Truma.
Start-up
– Remove the cowl cover.
– Open the gas cylinder and quick-acting valve in the gas
supply line.
– Switch on the heater, see
Truma CP plus VarioHeat digital control panel
If the appliance will not be used for some time, replace the
cowl cover and close the quick-acting valve in the gas supply
line and the gas cylinder.
Room temperature sensor
An external room temperature sensor is installed in the vehicle
to measure the room temperature. The vehicle manufacturer
determines the position of the sensor individually depending
on the type of vehicle. For more details, please refer to your
vehicle operating manual.
Fig. 1
The temperature setting on the control panel depends on your
personal warmth requirements and the design of the vehicle
and must be determined individually.
Digital control panel
Truma CPplus VarioHeat
Intended use
The Truma CPplus VarioHeat control panel is used to control
and monitor a Truma VarioHeat heater and / or a Truma air
conditioning system.
The following air conditioning systems can be operated1with
the Truma CPplus VarioHeat:
– Aventa comfort2
– Saphir comfort RC
The Truma CPplus VarioHeat is intended for installation in
caravans and motorcaravans.
1 or Truma CPplus VarioHeat CI-BUS for CI-BUS – cannot be
retrofitted.
2From serial number 24084022 – 04/2013.

6
Safety instructions
– Use the Truma CPplus VarioHeat control panel only when it
is technically intact.
– Have malfunctions repaired without delay. Repair malfunc-
tions yourself only if the repair is described in the trouble-
shooting guide of these operating instructions.
– Do not repair or modify the Truma CPplus VarioHeat control
panel.
– Have defective Truma CPplus VarioHeat control panels re-
paired only by the manufacturer or its service department.
– Never use LP gas appliances while the vehicle is being re-
fuelled, in covered car parks, garages or on ferries. Switch
the LP gas appliance off on the Truma CPplus VarioHeat
control panel.
Important information
– If the power supply for the system is interrupted, you must
reset the time/time switch.
– If a new/replaced appliance (heater, air conditioning sys-
tem) is connected to the bus system, you must repeat the
procedure described in “Initial start-up”.
Air conditioning systems – joint use of IR remote con-
trol and Truma CPplus VarioHeat control panel
– When the Truma CPplus VarioHeat control panel has been
connected, you can still use the IR remote control to operate
the air conditioning system. The Truma CPplus VarioHeat
control panel recognises all settings that were made on
the air conditioning system with the IR remote control. The
IRremote control transmits only the settings shown in its
display (no bidirectional communication).
– To define the start and end times of a required period, use
only the time switch of the Truma CPplus VarioHeat control
panel.
Display and operating elements
2
3
5
4
8
6
7
9
1
Fig. 2
1 = Display
2 = Status line
3 = Menu line (top)
4 = Menu line (bottom)
5 = Voltage display 230 V (onshore power supply)
6 = Time switch display
7 = Settings/values
8 = Rotary push button
9 = Back button
Use the rotary push button (8) to select menus in the
lines(3+ 4) and to make settings. The screen(1) has back-
ground lighting. Use the back button (9) to exit a menu.
Rotary push button
The rotary push button (8) is used to select and change set-
points and parameters and to store them by tapping. Selected
menu items flash.
+
Fig. 3
Turning in a clockwise direction
– The menu is scrolled from left to right.
– Increase values (+).
-
Fig. 4
Turning in an anti-clockwise direction
– The menu is scrolled from right to left.
– Reduce values (-).
Fig. 5
Ta p
– Apply (save) a selected value.
– Select a menu item, go to the settings
level.
Press and hold
– Main switching function ON/OFF
Back button
Press the back button (9) to exit a menu and cancel settings.
This means that the previous values remain.
Initial start-up
For initial start-up of the system, carry out the following steps:
– Switch on the power supply.
12 V for the Truma CPplus VarioHeat control panel and
Truma VarioHeat and 230 V power supply for air condi-
tioning systems.
– Start the appliance search under menu item
Service menu –> RESET –> PR SET.
When you have confirmed, the Truma CPplus VarioHeat con-
trol panel is initialised. During this process, INIT ... is shown in
the display. The appliances that are discovered are stored in
the control panel.
Start-up
Start / stand-by screen
When the Truma CPplus VarioHeat control panel has been
connected to the power supply, a start screen is displayed af-
ter a few seconds.
Fig. 6
– The display on the screen alternates between the time
and the room temperature that was set.
– Special displays for commands via the IR remote
control for the air conditioning system or CI-BUS (see
“Special displays” on page 10).
– After a repair/retrofit, you have to repeat the initial
start-up.

7
Selecting the fan speed
With connected heater/air conditioning system
– With the rotary push button, select the icon in the
menu line (3).
– Tap to go to the settings level.
– Use the rotary push button to select the desired fan speed.
– Tap the rotary push button to confirm the value.
2
3
a b c de f
Fig. 9
Heater (HEATER)
Symbol Operating mode Description
– OFF Fan is switched off.
(Can be selected only when
no appliance is operating).
a VENT1Circulation when no appli-
ance is operating. 10 speeds
can be selected.
b ECO Automatic control of the fan
depending on the heating
output… / optimised to the
current heating requirements
d BOOST Rapid room heating
Available if the difference
between the selected and
current room temperature is
>10°C.
e NIGHT Especially quiet fan operation
suitable for night-time use,
for example
1. Can cause increased motor wear, depending on how often it is used.
2. Fan level BOOST consumes more electricity, is louder and increases
motor wear.
When the heater is switched on (room temperature set),
the status line (2) shows the fan speed that was selected
in the previous heating process. The default setting is ECO.
Air conditioning system (AC)
Symbol Operating
mode
Description
– OFF Fan is switched off
(Can be selected only when no
appliance is operating).
a– –
b LOW Low fan speed
c MID Middle fan speed
d HIGH Highest fan speed
e NIGHT Especially quiet fan operation
f AUTO Automatic selection of fan speed.
Cannot be changed in
AUTO mode.
Functions
The functions in the menu lines (3, 4) of the Truma CPplus
VarioHeat control panel can be selected in any sequence. The
operating parameters are shown in the status line (2) or the
displays (5, 6).
Selecting the settings level
– Tap the rotary push button.
The display shows the settings level. The first icon flashes.
Fig. 7
Switching on and off
Switching on
– Tap the rotary push button.
– The previously set values/operating parameters are
active again after you switch on.
Switching off
– Press the rotary push button for longer than 4 seconds.
Because of internal time lags from the heater or air
conditioning system, the switching off process of the
TrumaCPplus VarioHeat control panel may be delayed by a
few minutes (during this time, OFF is shown in the display).
Changing the room temperature
– With the rotary push button, select the icon in the
menuline(3).
– Tap to go to the settings level.
– Depending on what appliances are connected, use the ro-
tary push button to select heater (HEATER) or air condition-
ing system (AC).
– Tap the rotary push button to confirm your selection.
– Use the rotary push button to select the desired
temperature.
– Tap the rotary push button to confirm the value.
2
3
c fda b e
Fig. 8
Heater (HEATER)
Adjustable temperature range 5 – 30 °C (1 °C increments)
a = Heater on – icon is lit
The icon flashes until the set room temperature is reached.
Air conditioning system (AC)
Adjustable temperature range 16 – 31 °C (1 °C increments)
b = COOL –Air conditioning system is switched on
c = AUTO –Air conditioning system is set to automatic
d = HOT –Air conditioning system is in heating mode
e = VENT –Air conditioning system is in circulation mode
Rapid temperature changes can be made with the rotary
push button (in the stand-by screen).

8
Adjusting the time switch
Risk of poisoning from exhaust gases.
The activated time switch switches the heater on even if the
RV is parked. The exhaust gases from the heater can cause
poisoning in enclosed spaces, such as garages or repair
shops.
If the RV is parked in an enclosed space:
– Block the fuel feed (gas) to the heater.
– Deactivate the time switch of the Truma CPplus VarioHeat
control panel (OFF).
– Switch off the heater on the Truma CPplus VarioHeat
control panel.
– If air conditioning systems are operated, use only
the time switch of the Truma CPplus VarioHeat con-
trol panel to set the start and end times of a desired
period.
– If the time switch is activated (ON), the Deactivate
time switch menu (OFF) is shown first.
– With the rotary push button, select the icon in the
menu line (4).
– Tap to go to the settings level.
Enter the start time
– Use the rotary push button to set the hours and then the
minutes.
24h mode 12h mode
Fig. 10 = a. m.
= p. m.
Fig. 11
Entering the end time
– Use the rotary push button to set the hours and then the
minutes.
24h mode 12h mode
Fig. 12 = a. m.
= p. m.
Fig. 13
If the start/end time has already passed when you make
the entries, the operating parameters are considered
only when the next start/end times are reached. Until then,
the operating parameters set outside the time switch remain
valid.
Adjusting the room temperature
– Depending on what appliances are connected, use the ro-
tary push button to select heater or air conditioning system.
– Tap the rotary push button to confirm your selection.
– Use the rotary push button to select the desired room
temperature.
– Tap the rotary push button to confirm the value.
Fig. 14
Selecting the fan speed
– Use the rotary push button to select the desired fan speed.
– Tap the rotary push button to confirm the value.
Fig. 15
Activating the time switch (ON)
– Use the rotary push button to activate the time switch (ON)
– Tap the rotary push button to confirm the value.
2
Fig. 16
– The time switch remains active, also for several days,
until it is deactivated (OFF).
– If the time switch is programmed and active, the time
switch icon flashes.
Deactivating the time switch (OFF)
– Tap to go to the settings level.
– Use the rotary push button to deactivate the time switch (OFF)
– Tap the rotary push button to confirm the value.
Fig. 17

9
Switching the lighting on and off
Available if an
Aventa comfort or
Aventa eco air conditioning system system is connected.
– With the rotary push button, select the icon in the
menu line (4).
– Tap to go to the settings level.
– Use the rotary push button to select the desired function.
1 – 5 – Switch on the lighting.
5 lighting levels can be selected.
OFF – Switch off the lighting.
– Tap the rotary push button to confirm the value.
4
Fig. 18
Setting the time
24h mode display 12h mode display
4
Fig. 19 = a. m.
= p. m.
4
Fig. 20
– With the rotary push button, select the “Setting the time”
icon in the menu line (4).
The hour display flashes.
– Use the rotary push button (8) to set the hours.
– Tap the rotary push button (8) again and the minute display
flashes.
– Use the rotary push button (8) to set the minutes.
– Tap the rotary push button (8) to confirm the value.
Service menu
1. Calibrate the room temperature sensor of the heater
(OFFSET)
The room temperature sensor of the connected heater can be
adjusted individually to suit the installation location of the sen-
sor. Settings are possible in 0.5 °C increments in a range from
5 °C to -5 °C.
Fig. 21
Example:
Set room temperature 23 °C;
OFFSET = -1 °C;
– Setpoint for heater = 22 °C
Default setting: 0°C (Celsius).
2. °C / °F Temperature display
Select temperature display °C (Celsius) or °F (Fahrenheit).
Fig. 22
Default setting: °C (Celsius).
3. Change the background lighting
The background lighting of the Truma CPplus VarioHeat con-
trol panel can be changed in 10 levels.
hot
Fig. 23
4. 12h / 24h mode
Display the time in 12h (a. m., p. m.) / 24h mode.
Fig. 24
Default setting: 24h mode
5. Change the language
Select the desired language (German, English, French, Italian).
hot
Fig. 25
Default setting: English
6. Show version number
Show the version number of the heater, air conditioning sys-
tem, Truma CPplus VarioHeat control panel.
Fig. 26
Example:
H 1.20.01 –> H = Appliance; 1.20.01
= Version number
Appliance
P = Truma CPplus VarioHeat control
panel
A = Air conditioning system
H = Heater
7. Default setting (RESET)
The reset function resets the Truma CPplus VarioHeat control
panel to the factory settings. All settings are deleted. Newly
connected appliances are recognised and stored in the con-
trol panel.
– Switch on the power supply
12 V for the Truma CPplus VarioHeat control panel and
Truma VarioHeat and
230 V power supply for air conditioning systems.

10
Reset
– Use the rotary push button (8) to select RESET.
– Tap the rotary push button (8).
– PR SET is displayed on the screen.
– Tap the rotary push button (8) to confirm.
Fig. 27
When you have confirmed, the Truma CPplus VarioHeat con-
trol panel is initialised.
During this process, INIT ... is shown in the display.
Special displays
Power supply 230 V / 240 V available
This icon shows that a 230 V / 240 V power supply (onshore
power supply) is available.
Fig. 28
The icon is displayed only in combination with a Truma
air conditioning system.
Infrared (IR) remote control
(air conditioning system)
If a command is sent via the infrared remote control of the air
conditioning system, IR is displayed on the screen.
External control panel (CI-BUS)
If a command is sent via the external control panel with
CI-BUS, CI is displayed on the screen.
The Truma CPplus VarioHeat control panel CI-BUS is a
separate variant that is fitted only in the factory.
Energy type display
– In heating mode, the energy type gas (a) is displayed
a
Fig. 29
Warning
This icon shows that an operating parameter has reached an
undefined status. In this case, the appliance concerned con-
tinues to operate. When the operating parameter returns to
the target range, the icon disappears automatically.
Fig. 30
Read the warning code
– Select the icon with the rotary push button.
– Tap the rotary push button.
The current warning code is shown. With the help of the
troubleshooting guide (from page13 et seq.) you can find
the cause of the warning and rectify it.
Fig. 31
W = Warning
28 = Error code
H = Appliance
H = Heater
A = Air conditioning system
Cause rectified / return to settings level
– Tap the rotary push button.
Cause not rectified / return to settings level
– Press the back button.
In this case, the warning on the Truma CPplus VarioHeat
control panel is not acknowledged and the warning icon
remains. The appliance concerned remains in warning status.
Other connected appliances can still be operated.
Error
In case of an error, the Truma CPplus VarioHeat control panel
immediately goes to the menu level “Error” and shows the error
code. With the help of the troubleshooting guide (from page13
et seq.) you can find the cause of the error and rectify it.
Fig. 32
E = Error
2 = Error code
H = Appliance
H = Heater
A = Air conditioning system
Cause rectified / return to settings level
– Tap the rotary push button.
– The corresponding appliance is restarted.
This may take a few minutes due to internal time lags of
the connected appliances.
If the cause was not rectified, the error will reoccur and the
control panel will again go to the menu level “Error”.
Cause not rectified / return to settings level
– Press the back button.
In this case, the error on the Truma CPplus VarioHeat
control panel is not acknowledged and the warning icon
remains. The appliance remains in error status. Other con-
nected appliances can still be operated.

11
Display specifications
Display LCD, monochrome, with
background lighting
Dimensions (L x W x H) 92 x 103 x 40 mm
Operating temperature range -25°C to +60°C
Storage temperature range -25°C to +70°C
Interfaces
Truma CP plus VarioHeat TIN Bus
Truma
CP plus VarioHeat CI-BUS TIN Bus, CI-BUS
Power supply 8V – 16.5V
Power consumption at
nominal voltage 12 V max. 65 mA (100% back-
ground lighting)
6.5 mA – 10 mA (stand-by)
Quiescent current
consumption max. 3 mA (off)
Weight approx. 100g
Technical changes reserved.
Maintenance of the Display
The Truma CPplus VarioHeat control panel requires no main-
tenance. To clean the front use a non-abrasive, moist cloth. If
this is not sufficient, use a neutral soap solution.
VarioHeat fuses
The fuse is located on the electronic control unit in the appli-
ance and can be replaced only by a professional.
Appliance fuse (F1):
10 AF – quick-acting – (EN 60127-2-3)
The micro fuse must be replaced by a similar fuse.
Disposal of the VarioHeat
The appliance must be disposed of in accordance with the
waste laws in the country in which it is used.
Maintance of the VarioHeat
The VarioHeat requires no maintenance. Truma recommends
that the VarioHeat be inspected annually by a qualified
service technician.
Heater specifications
Type of gas
Propane
Test point pressure
2.00 kPa (see type plate)
Operating pressure
2.75 kPa (see type plate)
Rated thermal input (gas consumption)
Min. stage: 4.53 MJ/h (90g/h) ISA
Max. stage: 9.75MJ/h (193g/h) ISA
Thermal efficiency
Min. stage: 86.4%
Max. stage: 84.3%
Air flow rate
85m³/h - 175 m³/h
Duct static pressure
< 170 Pa (1.7 mbar)
Temperature rise
< 80°C
Power supply
10.5 - 16 V
Power consumption at nominal Voltage 12 V
Operating: 0.85 - 3.65 A
Stand-by: 0.004A
Weight
Heater without periphery:
5.5 kg
Subject to technical changes.
Dimensions (all dimensions are in mm)
248
380
123
284
437
36
64
57
109
25
124
Fig. 33

12
Truma warranty policy
The warranty is given by Dometic Pty Ltd, Building 3B,
Clayton Business Park, 1508 Centre Road, Clayton, Victoria,
3168, for 12months from the date of purchase against any
defect arising from faulty materials or workmanship.
Repairs will be carried out during normal business hours only
by Dometic Pty Ltd, or its duly authorised service agents,
and are subject to the warranty conditions and exclusions
hereunder.
Warranty conditions
– The company will only provide service on presentation
of proof of purchase, on either the Truma product, or the
Caravan / RV / Pleasure Craft in which the Truma product
has been installed, to any authorised service agent. The pur-
chaser must allow the service agent to photocopy the proof
of purchase to facilitate his claim to the manufacturer.
– Warranty repairs can only be performed by authorised ser-
vice agents and under no circumstances will Dometic reim-
burse repairs carried out by unauthorised persons. Tamper-
ing with any part of the product by unauthorised personnel
will automatically void the warranty.
– The product must be used solely for domestic purposes. If
the product is used for commercial purposes, the warranty
is 6months only.
– Where applicable, the products must be used with the ap-
propriate electrical voltage, gas type and pressure, or fuel
source.
– If at any time during the warranty period any part or parts
are replaced with a part or parts not supplied or approved
by Truma, this warranty shall immediately become void.
Important notice
Before calling a service technician please check carefully
the operating instructions, warranty terms and conditions. If
the product fails for any of the reasons detailed therein, or is
faulty due to abuse, misuse or improper installation, then a
service fee shall be charged to the purchaser.
If you have any queries regarding the interpretation of the
warranty you should contact Dometic Pty Ltd.
Whilst this book represents service outlets at the time of
printing, changes occur from time to time. Should you have
any queries or wish to locate your nearest authorised service
agent please contact Dometic Pty Ltd.
Warranty does not cover
– Any heater which has been:
(a) Subject to misuse, neglect, accident or alteration by any
person.
(b) Damaged or destroyed by fire, flood, act of God or other
inevitable accident.
– Fair wear and tear.
– Damage from foreign substances such as dirt or liquid.
– Travelling expenses or call out fee to and from authorised
service agents’ premises.
– Accommodation or Site Expenses.
– Cleaning of the system or cleaning and adjustment of the
gas system. This is considered to be a part of normal prod-
uct maintenance.
– Non operation of the heater or resultant damage to the
unit where the heater has been operated in an out of level
situation.
– Freight cost of the appliance or parts, to or from, point of
service or transit damage.
– Dometic / Truma are not responsible for resultant loss or
damage sustained by the purchaser.
– Non operation of the appliance or resultant damage to the
unit where the appliance has not been installed, ventilated,
flued or operated in accordance with the manufacturer’s
instructions.
Apart from any warranties implied by the Trade Practices Act
1974 or any relevant State legislation all other warranties ex-
press or implied whether arising by virtue of statute or other-
wise are hereby excluded.

13
Troubleshooting guide for Truma VarioHeat
Error Cause Rectification
# 2
# 16
Flame not detected:
– Gas cylinder or quick-acting valve in the gas
supply line closed – Check gas supply and open valves
– Gas pressure regulation system iced up – Use EisEx controller heater
– Butane content in the gas cylinder too high – Use propane (butane is not suitable for heating especially at
temperatures below 10 °C )
– Combustion air infeed or exhaust gas outlet
closed – Check if openings are blocked (slush, ice, leaves, etc.) and clear if necessary
# 25 – Overvoltage > 16.4 V – Check battery voltage and voltage sources, such as charger
# 26 – Undervoltage battery voltage too low < 10 V – Charge battery, if necessary, replace old battery
# 27 – Warm air outlets blocked
– Circulated air intake blocked – Remove blockage – Remove blockage
# 28 – Window above cowl open (window switch) – Close window
# 29 – Imminent undervoltage, battery voltage too
low < 10.4 V – Charge battery
If these measures do not rectify the error, please contact the nearest Dometic Service Centre.
Troubleshooting guide (air conditioning system)
Error
code
Cause Rectification
# 2 Breakdown ice sensor – inside Check filter and replace if necessary
# 4 Breakdown ice sensor – outside (if fitted) Keep air inlets/outlets on the roof free of obstructions
such as leaves
If these measures do not rectify the error, please contact the nearest Dometic Service Centre.

39050-00161 · 01 · 09/2017 ·
In Australia, always notify the Dometic Service Centre
if problems are encountered; in other countries the
relevant service partners should be contacted
(www.truma.com).
Having the equipment model and the serial number
ready (see type plate) will speed up processing.
Dometic Pty Ltd
Building 3B,
Clayton Business Park
1508 Centre Road
Clayton, Victoria, 3168
Australia
Service (Australia)
Telephone: [phone]
Facsimile: [phone]
[email protected]
www.truma.com
©