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Truma VarioHeat® eco AU
Table of Contents
Installation example ........................................................... 2
Trademark information .......................................................... 3
Symbols used ........................................................................ 3
Intended use .......................................................................... 3
Safety behaviour and practices ....................................... 3
Scope of delivery ................................................................ 4
Approval ............................................................................... 4
Installation instructions for water supply ...................... 4
Selecting a suitable location ............................................ 4
Fastening the heater .......................................................... 5
Exhaust duct ....................................................................... 5
Permissible duct lengths ....................................................... 5
Installing the wall cowl .......................................................... 5
Connecting the exhaust double duct to the appliance .......... 6
Warm air distribution ........................................................ 6
Circulated air intake ........................................................... 7
Installing the room temperature sensor ......................... 7
Choosing a location ............................................................... 7
Installation ............................................................................. 7
Installing a digital control panel ...................................... 7
Description ........................................................................... 7
Dimensions ............................................................................ 7
Choosing a location ............................................................... 8
Electrical connection ............................................................. 8
Installation ............................................................................. 8
Electrical connections - heater ........................................ 8
Wiring diagram ...................................................................... 9
............................................................. 9
Battery connection ................................................................ 9
Room temperature sensor connection .................................. 9
Digital control panel connection ........................................... 9
Window switch connection (optional) ................................... 9
Gas connection ................................................................. 10
Installing the VarioHeat pre-pressure regulator .................. 10
Functional check .............................................................. 10
Warning ............................................................................. 10
Heater specifications ....................................................... 10
Trademark information
Truma VarioHeat® eco AU referred to as VarioHeat below.
Symbols used
Symbol indicates a possible hazard.
Comment including information and tips.
Observe the ESD regulations! An electrostatic charge
can destroy the electronics. Ensure potential equalisa-
tion before touching the electronics.
Installation instructions
Read the installation instructions carefully prior to start-
ing work and observe the instructions!
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.
Safety behaviour and practices
• Installation must be performed by an authorised Dometic
recommended installer, service agency, or OEM. Improper
installation, alteration, service, or maintenance can cause
property damage, personal injury, or loss of life.
• This heater must be installed in accordance with:
- these installation instructions,
- local gas fitting regulations,
- municipal building codes,
- electrical wiring regulations,
- AS/NZS 5601.2 - LP Gas installations in caravans and
boats for non-propulsive purposes ("LP Gas installations").
- and any other statutory regulations.
• Use with liquefied petroleum gas (LP Gas) in the vapour
phase-propane gas only. Butane or any mixtures contain-
ing more than 10 % butane must not be used.
• The nominal gas system pressure must be 2.75 kPa (see
type plate on heater).
• Switch off the vehicle's on-board power supply during in-
stallation and when connecting the heater.
• Close the vehicle's gas supply during installation and when
connecting the heater.
• Always wear protective gloves to avoid injuries from sharp
edges during installation and maintenance work.
• Do not draw air for combustion from occupied spaces or
downstream from evaporative coolers, air washers or cool-
ing units of refrigerating systems. Make sure that all com-
bustion air is supplied from outside the RV.
• Make sure that all exhaust gases are directed outside of the RV.
- Protect building materials from exhaust gases.
- Never direct the exhaust gases to any outdoor enclosed
spaces, such as a porch.
• Do not modify this heater or its controls. This can cause
unforeseen serious hazards and will void the warranty.
• Do not perform a hi-pot test on the heater unless the
electronic ignition system (circuit board) has been discon-
nected. A hi-pot test applies a very high voltage between
two conductors.
• If the vehicle requires welding do not connect the
12 V power to the heater. Electrical welding will cause
serious damage to the heater controller.
• Never fix cables or water pipes to the housing of the heater,
otherwise components inside the heater can be damaged.
Pay attention to the ESD regulations!
3
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