Installation Instructions; Installer Safety Information; Safety Symbols And Signal Words; Safety Behavior And Practices - Truma VarioHeat comfort US Installation Instructions Manual

Installation Instructions

Installer Safety Information

This heater design has been certified for
installation in recreational vehicles (RVs) as
a MSP Category III – direct vent forced air
heater.
Read, observe and follow these safety in-
structions to avoid injuries during installa-
tion or operation.

Safety symbols and signal words

This is the safety alert symbol. This symbol
alerts you to potential hazards that can kill or
hurt you and others.
indicates a hazardous situation
which, if not avoided, will result in death or
serious injury.
indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
indicates a hazardous situation
which, if not avoided, could result in minor or
moderate injury.
is used to address practices not
related to physical injury.
Other important information or tips

Safety behavior and practices

• Installation and service must be performed
by an authorized Truma-trained installer.
Improper installation, alteration, service or
maintenance can cause property damage,
personal injury or loss of life.
– Do not attempt installation as a Do-it-Your-
self project.
• Install in recreational vehicles (RVs) only (re-
fer to "Selecting an installation space" on
page 6).
• Improper installation may result in a risk of
explosion.
– Read and follow the installation
instructions.
– Use the supplied parts.
• Switch off the vehicle's on-board power sup-
ply (12 VDC) during installation and when
connecting the VarioHeat.
• Close the vehicle's gas supply during instal-
lation and when connecting the VarioHeat.
• Always wear protective gloves to avoid inju-
ries from sharp edges during installation and
maintenance work.
• Always protect your eyes from injury. Wear
protective eyewear whenever installing or
handling the VarioHeat.
• Make sure that all combustion air is supplied
from outside the RV. Never supply air for
combustion from occupied spaces.
• Provide adequate combustion and ventila-
tion air to the VarioHeat space;refer to "In-
stallation position: wall cowl" on page 13
and the following and refer to "Installing end
outlets" on page 11 of these instructions.
• Combustion products must be discharged
outdoors. Connect the VarioHeat to an ap-
proved venting system only; refer to "Instal-
lation position: wall cowl" on page 13 and
the following of these instructions.
• Always install the VarioHeat to operate
within the VarioHeat intended temperature-
rise range with a duct system which has an
external static pressure within the allowable
range; refer to " VarioHeat Technical Data" in
the operating instructions and the VarioHeat
rating plate.
• Use with LP gas (propane) only. Butane or
any mixtures containing more than 10 % of
butane must not be used (see rating plate).
• Any alteration to the VarioHeat or its controls
can cause unforeseen serious hazards.
• DO NOT alter the VarioHeat for a positive
grounding battery system.
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