Truma VarioHeat comfort US User manual

Operating instructions
To be kept in the vehicle.
This document is part of the heater.
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death or prop-
erty damage.
Do not store or use gasoline or other flam-
mable vapors and liquids in the vicinity of
this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Evacuate all persons from the vehicle.
• Shut off the gas supply at the gas contain-
er or source.
• Do not touch any electrical switch or use
any phone or radio in the vehicle.
• Do not start the vehicle’s engine or electric
generator.
• Contact the nearest gas supplier or certi-
fied service technician for repairs.
• If you cannot reach a gas supplier or certi-
fied service technician, contact the nearest
fire department.
• Do not turn on the gas supply until gas
leaks have been repaired.
Installation and service must be performed
by a certified service technician, service
agency, or the gas supplier.
LP gas heater
Conforms to ANSI Std. Z21.47
Certified to CSA Std. 2.3
4010007
Truma VarioHeat comfort US

2
Table of Contents
Trademark information ........................................................ 2
Intended use .......................................................................... 2
Prohibited use ........................................................................ 2
Mounting arrangement / Accessories ................................ 3
VarioHeat Overview .............................................................. 4
Consumer Safety Information
Safety symbols and signal words ...................................... 5
Safety behavior and practices ............................................. 5
Safety features ...................................................................... 7
Operating Instructions
How the VarioHeat works ................................................... 7
Selectable modes of operation ................................................. 8
Switch for gas shut-off valve .............................................. 8
Room temperature sensor ................................................... 8
Starting the VarioHeat .......................................................... 8
Inspections before each use .................................................... 8
Switching on the VarioHeat ...................................................... 9
Shutdown ............................................................................... 9
Switching off the VarioHeat ..................................................... 9
Truma CP plus VarioHeat control panel ............................ 9
VarioHeat Technical Data .................................................. 10
“VarioHeat” MANUFACTURER’S LIMITED WARRANTY ....
11
Maintenance and service ................................................... 12
Replacing the 12-volt fuse ...................................................... 12
Troubleshooting .................................................................. 12
Appendix
Warning labels ..................................................................... 13
California Proposition 65 lists chemical sub-
stances known to the state to cause cancer,
birth defects, death, serious illness or other re-
productive harm. This product may contain such
substances, be their origin from fuel combus-
tion (gas) or components of the product itself.
Trademark information
Truma VarioHeat comfort US referred to as
VarioHeat below.
Truma CP plus VarioHeat reffered to as CP plus
VarioHeat below.
Intended use
The VarioHeat may be used only in recreational
vehicles (RVs) for heating the room.
Recreational vehicles (RVs) are designed as
temporary living quarters for recreation, travel
and/or camping. RVs 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.

3
Mounting arrangement / Accessories
This is a typical installation for illustration. The installation in your vehicle may vary.
The illustration is not to scale.
AquaGo
C
B
H
D
A
E
F
G
Fig. 1
Legend
A VarioHeat
B CP plus VarioHeat
C Room temperature sensor
D Exhaust venting system
E T-piece TS
F End outlet EN
G Wall outlet vent WL
H Swivel air outlet SCW 2

4
VarioHeat Overview
Fig. 2
Legend
1 Gas connection
2 Gas test pressure point
3 Switch for gas shut-off valve
4 Retainer
5 Exhaust venting system
6 Warm air outlet
7 Circulated air intake
4
ON
OFF
5
6
7
3
1
2

5
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
Ensuring a safe operating environment
• Suffocation through exhaust
gases To ensure dissipation of exhaust gas-
es, operate the VarioHeat outdoors only.
– Never use in enclosed spaces or tents or
breathe in the exhaust gases.
– If installing an airtight awning, make sure
that the exhaust system terminates to the
outdoors.
– If the RV is parked in an enclosed space:
– Block the flow of fuel to the VarioHeat.
– Deactivate the time switch.
– Switch off the VarioHeat at the control
panel.
– Ensure that the VarioHeat cannot be
switched on through the Truma App un-
der any circumstances.
• Use the VarioHeat only with a functional
LP gas and carbon monoxide detector installed
in the RV. For installation, operation and func-
tion test follow the manufacturer’s guidelines.
• Keep the area around the VarioHeat free
from combustible materials, gasoline, and
other flammable vapors or liquids such as
pressurized dispensers or wax candles.
Consumer Safety Information • Keep the area in front of the warm air outlets
(Fig.1 – 6) free of combustible or heat-sen-
sitive materials. Do not put any material into
the warm air outlets.
• In order to avoid overheating of the
VarioHeat, keep the air inlets of the
VarioHeat (Fig.2 – 7), the air openings
to the area in which the VarioHeat is
installed (Fig.1) and the spacing around the
VarioHeat free of obstruction.
• To ensure clean combustion, keep the wall
cowl free of obstruction. Do not lean any ob-
jects against the wall cowl (Fig.1 – D).
• Danger of hot surfaces. The temperature of
the exhaust gases can reach 320°F (160°C).
Do not touch the area around the wall cowl
and do not lean any objects against the wall
cowl or the RV.
Responsibilities of the operator
• The vehicle owner is responsible for ensuring
that the appliance can function properly.
• LPG systems must comply with the technical
and administrative regulations of the country
in which they are used. National rules and
regulations must be observed.
Safe operation
• Use with LP gas (propane) only. Butane or
any mixtures containing more than 10% of
butane must not be used.
• Danger of damage to the gas system! For
the operation of gas pressure regulation sys-
tems, gas-burning devices or gas systems
only gas cylinders that supply gas in the
gaseous phase may be used. Gas cylinders
which supply gas in the liquid phase are
prohibited.
• During the initial start-up of a brand new
appliance, small quantities of fumes and
a slight odor may occur briefly. When the
appliance is started up after a particularly
long period of non-use, there may be some
smoke and/or smell due to dust or dirt. It is
a good idea to allow the appliance to run at
maximum output for a few minutes and to
ensure that the area is well ventilated.
• Hot air can be dangerous, especially for in-
fants, children, the elderly, or infirm. It can
cause burns: