Function Description; Winter Operation; Summer Operation; Safety Instructions - Truma Combi 4 E Instrucciones De Uso

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Function description

The liquid gas heater Combi E is a warm-air heater with inte-
grated hot water boiler (10 litres volume). The burner operates
fan-supported, which ensures trouble-free function even when
on the move. The unit also has heating elements for electrical
operation.
In winter operation the heater can be used to heat the
room and simultaneously warm water. If only warm water is
required, select summer operation.
At a temperature of approximately 3 °C at the automatic
FrostControl safety/drain valve, the valve will open and drain
the boiler.
3 different options are available for operating the unit.
gas operation only
Propane / Butane for autonomous use
electrical operation only
230 V for stationary use on camp sites
or gas and electrical operation – mixed operation
only possible in winter mode.

Winter operation

In winter operation, the unit automatically selects the
required power setting according to the temperature differ-
ence between the temperature set on the control panel and
the current room temperature. When the boiler is filled, the
water is automatically heated as well. The water temperature
depends on the selected operational mode and the heater
output.
All 3 energy selection options can be used for winter
deployment.
With gas operation the unit automatically selects the out-
put level that is required.
Depending on the fuse protection at the camping site,
power of 900 W (3.9 A) or 1800 W (7.8 A) can be manually
selected for electrical operation.
If more output is required (e.g. heating up or low outside
temperatures) gas or mixed operation should be selected so
that enough heating power is always available.
With mixed operation, 230 V electrical operation is pre-
ferred if the power requirement is low (e.g. for maintaining
the room temperature). The gas burner is not enabled until
the power requirement is higher, and is the first to switch
off during
heat-up operations.

Summer operation

(boiler operation only)
Gas operation or 230 V electrical operation is used for hot
water preparation. The water temperature can be set to 40 °C
or 60 °C.
With gas operation the water is heated at the lowest
burner setting. Once the water temperature is reached, the
burner switches off.
Depending on the fuse protection at the camping site,
power of 900 W (3.9 A) or 1800 W (7.8 A) can be manually
selected for electrical operation.
Mixed operation is not possible. With this setting the
unit automatically selects electrical operation. The gas
burner is not enabled.

Safety instructions

The use of upright gas cylinders from which the gas phase
is taken is mandatory when operating gas pressure regulation
systems, gas devices and gas systems. 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.
If the gas system is leaking or if there is a smell of gas:
extinguish all open flames
open windows and door
close all quick-acting valves and gas cylinders
do not smoke
do not activate any electric switches
ask an expert to inspect the entire system!
Repairs may only be carried out by an expert!
Guarantee claims, warranty claims and acceptance of liability
will be ruled out in the event of the following:
modifications to the unit (including accessories),
modifications to the exhaust duct and the cowl,
failure to use original Truma parts as
replacement parts and accessories,
failure to follow the installation and operating instructions.
It also becomes illegal to use the appliance, and in some
countries this even makes it illegal to use the vehicle.
The gas supply's operating pressure (30 mbar) must be the
same as the unit's operating pressure (see type plate).
Liquid gas systems must comply with the technical and ad-
ministrative regulations of the respective country of use (e.g.
EN 1949 for vehicles in Europe). The national legislation and
regulations (e.g. DVGW Work Sheet G 607 for vehicles in
Germany) must be observed.
In Germany, the gas system must be retested every 2 years by
a liquid gas specialist (DVFG, TÜV, DEKRA). The test must be
confirmed on the respective test certificate (G 607).
The vehicle owner is always responsible for arranging the
inspection.
Liquid gas equipment may not be used when refueling, in
multi-storey car parks, in garages, or on ferries.
During the initial operation of a brand new appliance (or after
it has not been used for some time), a slight amount of fumes
and smell may be noticed for a short while. It is a good idea to
heat the device up several times in summer operation (60 °C)
and to make sure that the area is well ventilated.
Heat-sensitive objects such as spray cans or flammable liquids
may not be stored in the same compartment where the heater
is installed because, under certain conditions, this area may
be subject to elevated temperatures.
Only pressure regulating equipment that complies with
EN 12864 (in vehicles) with fixed output pressure of 30 mbar
may be used for the gas system. The flow rate of the pressure
control device must correspond to at least the maximum con-
sumption of all devices installed by the system manufacturer.
We recommend the Truma gas pressure regulation system
MonoControl CS for vehicles and the gas pressure regulation
systems Truma DuoComfort / DuoControl CS for dual-cylinder
gas systems.
At temperatures of around 0 °C and below, the gas pressure
regulation system or the switch valve is operated with the
regulator heater EisEx.
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