Safety Features; Operating Instructions; How The Combi Furnace Works - Truma Combi eco Operating Instructions Manual

Safety features

The Combi furnace is equipped with the
following safety devices:
Switch for gas shut-off valve
The switch (Fig. 2 – 4) shuts off the power to
the safety gas valve and the gas supply to the
furnace. If you want to make sure that the gas
supply to the furnace is off, turn the switch to
the OFF position.
Flame monitoring
If the flame goes out, the gas supply is switched
off.
Low-voltage shut down
If the voltage drops below 10 VDC, the gas sup-
ply is switched off.
Overcurrent protection
If there is a short curcuit in the Combi furnace
(>10 A), a fuse on the control unit is activated
and the Combi furnace is switched off.
Monitoring of hot water temperature
A water over temperature switch avoids exces-
sively high water temperatures.
Monitoring of hot air temperature
An air over temperature switch avoids exces-
sively high air temperatures.
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Operating Instructions

Read and follow the "Consumer Safety
Information" before operating the Combi
furnace.
Danger of faulty operation!
Always use the CP plus control panel to
operate the Combi furnace. Operating in-
structions are supplied with the CP plus
control panel.
Scalding injuries caused by hot water!
Water temperatures over 127 ºF (52 ºC) can
cause severe burns or scalding and in extreme
cases even death.
Water in the hot water container can become
as hot as 162 °F (72 °C) during operation. If
there is a malfunction, the water can reach
205 °F (96 °C).
• Always use potable water to fill the hot
water container. The person operating the
furnace is responsible for the quality of this
water.
• Before using a hot water faucet or using
the shower, allow the hot water to run until
the water temperature no longer increases
and mix with cold water.
• Test the temperature of the water before
placing a child in the bath or shower.
• Do not leave a child or an infirm person in
the bath unsupervised.

How the Combi furnace works

The Combi furnace was developed exclusively
for use in recreational vehicles (RVs).
The Combi is a furnace with a supplementary,
indirect hot water generator.
All Combi models are powered by propane and
a 12 V power supply.
The Combi eco plus and Combi comfort plus
models are also powered by electrical heating
elements for operation at a supply voltage of
120 VAC.